добавлена многпопоточность

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/ClientBusinessLogicContract.cs

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+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class ClientBusinessLogicContract(IClientStorageContract clientStorageContract, ILogger logger)  : IClientBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IClientStorageContract _clientStorageContract = clientStorageContract;
+
+    public List<ClientDataModel> GetAllClients()
+    {
+        _logger.LogInformation("GetAllClients");
+        return _clientStorageContract.GetList() ?? throw new NullListException();
+    }
+
+    public ClientDataModel GetClientByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _clientStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        if (Regex.IsMatch(data, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+        {
+            return _clientStorageContract.GetElementByPhoneNumber(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _clientStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertClient(ClientDataModel clientDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(clientDataModel));
+        ArgumentNullException.ThrowIfNull(clientDataModel);
+        clientDataModel.Validate();
+        _clientStorageContract.AddElement(clientDataModel);
+    }
+
+    public void UpdateClient(ClientDataModel clientDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(clientDataModel));
+        ArgumentNullException.ThrowIfNull(clientDataModel);
+        clientDataModel.Validate();
+        _clientStorageContract.UpdElement(clientDataModel);
+    }
+
+    public void DeleteClient(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _clientStorageContract.DelElement(id);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/EmployeeBusinessLogicContract.cs

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+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class EmployeeBusinessLogicContract(IEmployeeStorageContract employeeStorageContract, ILogger logger) : IEmployeeBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IEmployeeStorageContract _employeeStorageContract = employeeStorageContract;
+
+    public List<EmployeeDataModel> GetAllEmployees(bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllEmployees params: {onlyActive}", onlyActive);
+        return _employeeStorageContract.GetList(onlyActive) ?? throw new NullListException();
+    }
+
+    public List<EmployeeDataModel> GetAllEmployeesByPost(string postId, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllEmployees params: {postId}, {onlyActive},", postId, onlyActive);
+        if (postId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(postId));
+        }
+        if (!postId.IsGuid())
+        {
+            throw new ValidationException("The value in the field postId is not a unique identifier.");
+        }
+        return _employeeStorageContract.GetList(onlyActive, postId) ?? throw new NullListException();
+    }
+
+    public List<EmployeeDataModel> GetAllEmployeesByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllEmployees params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _employeeStorageContract.GetList(onlyActive, fromBirthDate: fromDate, toBirthDate: toDate) ?? throw new NullListException();
+    }
+
+    public List<EmployeeDataModel> GetAllEmployeesByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllEmployees params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _employeeStorageContract.GetList(onlyActive, fromEmploymentDate: fromDate, toEmploymentDate: toDate) ?? throw new NullListException();
+    }
+
+    public EmployeeDataModel GetEmployeeByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _employeeStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        if (Regex.IsMatch(data, @"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"))
+        {
+            return _employeeStorageContract.GetElementByEmail(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _employeeStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertEmployee(EmployeeDataModel employeeDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(employeeDataModel));
+        ArgumentNullException.ThrowIfNull(employeeDataModel);
+        employeeDataModel.Validate();
+        _employeeStorageContract.AddElement(employeeDataModel);
+    }
+
+    public void UpdateEmployee(EmployeeDataModel employeeDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(employeeDataModel));
+        ArgumentNullException.ThrowIfNull(employeeDataModel);
+        employeeDataModel.Validate();
+        _employeeStorageContract.UpdElement(employeeDataModel);
+    }
+
+    public void DeleteEmployee(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _employeeStorageContract.DelElement(id);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/PostBusinessLogicContract.cs

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+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class PostBusinessLogicContract(IPostStorageContract postStorageContract, ILogger logger) : IPostBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+    public List<PostDataModel> GetAllPosts()
+    {
+        _logger.LogInformation("GetAllPosts");
+        return _postStorageContract.GetList() ?? throw new NullListException();
+    }
+
+    public List<PostDataModel> GetAllDataOfPost(string postId)
+    {
+        _logger.LogInformation("GetAllDataOfPost for {postId}", postId);
+        if (postId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(postId));
+        }
+        if (!postId.IsGuid())
+        {
+            throw new ValidationException("The value in the field postId is not a unique identifier.");
+        }
+        return _postStorageContract.GetPostWithHistory(postId) ?? throw new NullListException();
+    }
+
+    public PostDataModel GetPostByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _postStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _postStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertPost(PostDataModel postDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(postDataModel));
+        ArgumentNullException.ThrowIfNull(postDataModel);
+        postDataModel.Validate();
+        _postStorageContract.AddElement(postDataModel);
+    }
+
+    public void UpdatePost(PostDataModel postDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(postDataModel));
+        ArgumentNullException.ThrowIfNull(postDataModel);
+        postDataModel.Validate();
+        _postStorageContract.UpdElement(postDataModel);
+    }
+
+    public void DeletePost(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _postStorageContract.DelElement(id);
+    }
+
+    public void RestorePost(string id)
+    {
+        _logger.LogInformation("Restore by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _postStorageContract.ResElement(id);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/SalaryBusinessLogicContract.cs

@@ -0,0 +1,124 @@
+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+public class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,ISaleStorageContract saleStorageContract,
+    IPostStorageContract postStorageContract, IEmployeeStorageContract employeeStorageContract, ILogger logger, IConfigurationSalary сonfiguration) : ISalaryBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly ISalaryStorageContract _salaryStorageContract = salaryStorageContract;
+    private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+    private readonly IEmployeeStorageContract _employeeStorageContract = employeeStorageContract;
+    private readonly IConfigurationSalary _salaryConfiguration = сonfiguration;
+    private readonly Lock _lockObject = new();
+    public List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}", fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _salaryStorageContract.GetList(fromDate, toDate) ?? throw new NullListException();
+    }
+
+    public List<SalaryDataModel> GetAllSalariesByPeriodByEmployee(DateTime fromDate, DateTime toDate, string employeeId)
+    {
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (employeeId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(employeeId));
+        }
+        if (!employeeId.IsGuid())
+        {
+            throw new ValidationException("The value in the field employeeId is not a unique identifier.");
+        }
+        _logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}, {employeeId}", fromDate, toDate, employeeId);
+        return _salaryStorageContract.GetList(fromDate, toDate, employeeId) ?? throw new NullListException();
+    }
+
+    public void CalculateSalaryByMounth(DateTime date)
+    {
+        _logger.LogInformation("CalculateSalaryByMounth: {date}", date);
+        var startDate = new DateTime(date.Year, date.Month, 1);
+        var finishDate = new DateTime(date.Year, date.Month, DateTime.DaysInMonth(date.Year, date.Month));
+        var employees = _employeeStorageContract.GetList() ?? throw new NullListException();
+        foreach (var employee in employees)
+        {
+            var sales = _saleStorageContract.GetList(startDate, finishDate, employeeId: employee.Id) ?? throw new NullListException();
+            var post = _postStorageContract.GetElementById(employee.PostId) ?? throw new NullListException();
+            var salary = post.ConfigurationModel switch
+            {
+                null => 0,
+                TravelAgentPostConfiguration cpc => CalculateSalaryForTravelAgent(sales, startDate, finishDate, cpc),
+                ChiefPostConfiguration spc => CalculateSalaryForChief(startDate, finishDate, spc),
+                PostConfiguration pc => pc.Rate,
+            };
+            _logger.LogDebug("The employee {employeeId} was paid a salary of {salary}", employee.Id, salary);
+            _salaryStorageContract.AddElement(new SalaryDataModel(employee.Id, finishDate, salary));
+        }
+    }
+    private double CalculateSalaryForTravelAgent(List<SaleDataModel> sales, DateTime startDate, DateTime finishDate, TravelAgentPostConfiguration config)
+    {
+        var calcPercent = 0.0;
+        var dates = new List<DateTime>();
+        for (var date = startDate; date < finishDate; date = date.AddDays(1))
+        {
+            dates.Add(date);
+        }
+
+        var parallelOptions = new ParallelOptions
+        {
+            MaxDegreeOfParallelism = _salaryConfiguration.MaxConcurrentThreads
+        };
+
+        Parallel.ForEach(dates, parallelOptions, date =>
+        {
+            var salesInDay = sales.Where(x => x.SaleDate.Date == date.Date).ToArray();
+            if (salesInDay.Length > 0)
+            {
+                lock (_lockObject)
+                {
+                    calcPercent += (salesInDay.Sum(x => x.Sum) / salesInDay.Length) * config.SalePercent;
+                }
+            }
+        });
+
+        double calcBonusTask = 0;
+        try
+        {
+            calcBonusTask = sales.Where(x => x.Sum > _salaryConfiguration.ExtraSaleSum).Sum(x => x.Sum) * config.BonusForExtraSales;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error in bonus calculation");
+        }
+        return config.Rate + calcPercent + calcBonusTask;
+    }
+    private double CalculateSalaryForChief(DateTime startDate, DateTime finishDate, ChiefPostConfiguration config)
+    {
+        try
+        {
+            return config.Rate + config.PersonalCountTrendPremium * _employeeStorageContract.GetEmployeeTrend(startDate, finishDate);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error in the chief payroll process");
+            return 0;
+        }
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/SaleBusinessLogicContract.cs

@@ -0,0 +1,120 @@
+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class SaleBusinessLogicContract(ISaleStorageContract saleStorageContract, ILogger logger) : ISaleBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+
+    public List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {fromDate}, {toDate}", fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _saleStorageContract.GetList(fromDate, toDate) ?? throw new NullListException();
+    }
+
+    public List<SaleDataModel> GetAllSalesByEmployeeByPeriod(string employeeId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {employeeId}, {fromDate}, {toDate}", employeeId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (employeeId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(employeeId));
+        }
+        if (!employeeId.IsGuid())
+        {
+            throw new ValidationException("The value in the field employeeId is not a unique identifier.");
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, employeeId: employeeId) ?? throw new NullListException();
+    }
+
+    public List<SaleDataModel> GetAllSalesByClientByPeriod(string clientId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {buyerId}, {fromDate}, {toDate}", clientId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (clientId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(clientId));
+        }
+        if (!clientId.IsGuid())
+        {
+            throw new ValidationException("The value in the field clientId is not a unique identifier.");
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, clientId: clientId) ?? throw new NullListException();
+    }
+
+    public List<SaleDataModel> GetAllSalesByTourByPeriod(string tourId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {tourId}, {fromDate}, {toDate}", tourId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (tourId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(tourId));
+        }
+        if (!tourId.IsGuid())
+        {
+            throw new ValidationException("The value in the field tourId is not a unique identifier.");
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, tourId: tourId) ?? throw new NullListException();
+    }
+
+    public SaleDataModel GetSaleByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (!data.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        return _saleStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertSale(SaleDataModel saleDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(saleDataModel));
+        ArgumentNullException.ThrowIfNull(saleDataModel);
+        saleDataModel.Validate();
+        _saleStorageContract.AddElement(saleDataModel);
+    }
+
+    public void CancelSale(string id)
+    {
+        _logger.LogInformation("Cancel by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _saleStorageContract.DelElement(id);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/Implementations/TourBusinessLogicContract.cs

@@ -0,0 +1,83 @@
+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace MagicCarpetBusinessLogic.Implementations;
+
+public class TourBusinessLogicContract(ITourStorageContract tourStorageContract, ILogger logger) : ITourBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly ITourStorageContract _tourStorageContract = tourStorageContract;
+    public List<TourDataModel> GetAllTours()
+    {
+        _logger.LogInformation("GetAllTours");
+        return _tourStorageContract.GetList() ?? throw new NullListException();
+    }
+
+    public List<TourHistoryDataModel> GetTourHistoryByTour(string tourId)
+    {
+        _logger.LogInformation("GetTourHistoryByTour for {tourId}", tourId);
+        if (tourId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(tourId));
+        }
+        if (!tourId.IsGuid())
+        {
+            throw new ValidationException("The value in the field tourId is not a unique identifier.");
+        }
+        return _tourStorageContract.GetHistoryByTourId(tourId) ?? throw new NullListException();
+    }
+
+    public TourDataModel GetTourByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _tourStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _tourStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertTour(TourDataModel tourDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(tourDataModel));
+        ArgumentNullException.ThrowIfNull(tourDataModel);
+        tourDataModel.Validate();
+        _tourStorageContract.AddElement(tourDataModel);
+    }
+
+    public void UpdateTour(TourDataModel tourDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(tourDataModel));
+        ArgumentNullException.ThrowIfNull(tourDataModel);
+        tourDataModel.Validate();
+        _tourStorageContract.UpdElement(tourDataModel);
+    }
+
+    public void DeleteTour(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException("Id is not a unique identifier");
+        }
+        _tourStorageContract.DelElement(id);
+    }
+}

MagicCarpetProject/MagicCarpetBusinessLogic/MagicCarpetBusinessLogic.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+	<ItemGroup>
+		<InternalsVisibleTo Include="MagicCarpetTests" />
+		<InternalsVisibleTo Include="MagicCarpetWebApi" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+	<ItemGroup>
+		<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.2" />
+	</ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MagicCarpetContracts\MagicCarpetContracts.csproj" />
+  </ItemGroup>
+
+</Project>

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/IClientAdapter.cs

@@ -0,0 +1,22 @@
+using MagicCarpetContracts.AdapterContracts.OperationResponses;
+using MagicCarpetContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts;
+
+public interface IClientAdapter
+{
+    ClientOperationResponse GetList();
+
+    ClientOperationResponse GetElement(string data);
+
+    ClientOperationResponse RegisterClient(ClientBindingModel clientModel);
+
+    ClientOperationResponse ChangeClientInfo(ClientBindingModel clientModel);
+
+    ClientOperationResponse RemoveClient(string id);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/IEmployeeAdapter.cs

@@ -0,0 +1,28 @@
+using MagicCarpetContracts.AdapterContracts.OperationResponses;
+using MagicCarpetContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts;
+
+public interface IEmployeeAdapter
+{
+    EmployeeOperationResponse GetList(bool includeDeleted);
+
+    EmployeeOperationResponse GetPostList(string id, bool includeDeleted);
+
+    EmployeeOperationResponse GetListByBirthDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+    EmployeeOperationResponse GetListByEmploymentDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+    EmployeeOperationResponse GetElement(string data);
+
+    EmployeeOperationResponse RegisterEmployee(EmployeeBindingModel employeeModel);
+
+    EmployeeOperationResponse ChangeEmployeeInfo(EmployeeBindingModel employeeModel);
+
+    EmployeeOperationResponse RemoveEmployee(string id);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/IPostAdapter.cs

@@ -0,0 +1,26 @@
+using MagicCarpetContracts.AdapterContracts.OperationResponses;
+using MagicCarpetContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts;
+
+public interface IPostAdapter
+{
+    PostOperationResponse GetList();
+
+    PostOperationResponse GetHistory(string id);
+
+    PostOperationResponse GetElement(string data);
+
+    PostOperationResponse RegisterPost(PostBindingModel postModel);
+
+    PostOperationResponse ChangePostInfo(PostBindingModel postModel);
+
+    PostOperationResponse RemovePost(string id);
+
+    PostOperationResponse RestorePost(string id);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/ISalaryAdapter.cs

@@ -0,0 +1,15 @@
+using MagicCarpetContracts.AdapterContracts.OperationResponses;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts;
+
+public interface ISalaryAdapter
+{
+    SalaryOperationResponse GetListByPeriod(DateTime fromDate, DateTime toDate);
+    SalaryOperationResponse GetListByPeriodByEmployee(DateTime fromDate, DateTime toDate, string employeeId);
+    SalaryOperationResponse CalculateSalary(DateTime date);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/ISaleAdapter.cs

@@ -0,0 +1,26 @@
+using MagicCarpetContracts.AdapterContracts.OperationResponses;
+using MagicCarpetContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts;
+
+public interface ISaleAdapter
+{
+    SaleOperationResponse GetList(DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetEmployeeList(string id, DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetClientList(string id, DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetTourList(string id, DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetElement(string id);
+
+    SaleOperationResponse MakeSale(SaleBindingModel saleModel);
+
+    SaleOperationResponse CancelSale(string id);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/ITourAdapter.cs

@@ -0,0 +1,24 @@
+using MagicCarpetContracts.AdapterContracts.OperationResponses;
+using MagicCarpetContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts;
+
+public interface ITourAdapter
+{
+    TourOperationResponse GetList(bool includeDeleted);
+
+    TourOperationResponse GetHistory(string id);
+
+    TourOperationResponse GetElement(string data);
+
+    TourOperationResponse RegisterTour(TourBindingModel tourModel);
+
+    TourOperationResponse ChangeTourInfo(TourBindingModel tourModel);
+
+    TourOperationResponse RemoveTour(string id);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/OperationResponses/ClientOperationResponse.cs

@@ -0,0 +1,24 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts.OperationResponses;
+
+public class ClientOperationResponse : OperationResponse
+{
+    public static ClientOperationResponse OK(List<ClientViewModel> data) => OK<ClientOperationResponse, List<ClientViewModel>>(data);
+
+    public static ClientOperationResponse OK(ClientViewModel data) => OK<ClientOperationResponse, ClientViewModel>(data);
+
+    public static ClientOperationResponse NoContent() => NoContent<ClientOperationResponse>();
+
+    public static ClientOperationResponse BadRequest(string message) => BadRequest<ClientOperationResponse>(message);
+
+    public static ClientOperationResponse NotFound(string message) => NotFound<ClientOperationResponse>(message);
+
+    public static ClientOperationResponse InternalServerError(string message) => InternalServerError<ClientOperationResponse>(message);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/OperationResponses/EmployeeOperationResponse.cs

@@ -0,0 +1,24 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts.OperationResponses;
+
+public class EmployeeOperationResponse : OperationResponse
+{
+    public static EmployeeOperationResponse OK(List<EmployeeViewModel> data) => OK<EmployeeOperationResponse, List<EmployeeViewModel>>(data);
+
+    public static EmployeeOperationResponse OK(EmployeeViewModel data) => OK<EmployeeOperationResponse, EmployeeViewModel>(data);
+
+    public static EmployeeOperationResponse NoContent() => NoContent<EmployeeOperationResponse>();
+
+    public static EmployeeOperationResponse NotFound(string message) => NotFound<EmployeeOperationResponse>(message);
+
+    public static EmployeeOperationResponse BadRequest(string message) => BadRequest<EmployeeOperationResponse>(message);
+
+    public static EmployeeOperationResponse InternalServerError(string message) => InternalServerError<EmployeeOperationResponse>(message);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/OperationResponses/PostOperationResponse.cs

@@ -0,0 +1,24 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts.OperationResponses;
+
+public class PostOperationResponse : OperationResponse
+{
+    public static PostOperationResponse OK(List<PostViewModel> data) => OK<PostOperationResponse, List<PostViewModel>>(data);
+
+    public static PostOperationResponse OK(PostViewModel data) => OK<PostOperationResponse, PostViewModel>(data);
+
+    public static PostOperationResponse NoContent() => NoContent<PostOperationResponse>();
+
+    public static PostOperationResponse NotFound(string message) => NotFound<PostOperationResponse>(message);
+
+    public static PostOperationResponse BadRequest(string message) => BadRequest<PostOperationResponse>(message);
+
+    public static PostOperationResponse InternalServerError(string message) => InternalServerError<PostOperationResponse>(message);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/OperationResponses/SalaryOperationResponse.cs

@@ -0,0 +1,18 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts.OperationResponses;
+
+public class SalaryOperationResponse : OperationResponse
+{
+    public static SalaryOperationResponse OK(List<SalaryViewModel> data) => OK<SalaryOperationResponse, List<SalaryViewModel>>(data);
+    public static SalaryOperationResponse NoContent() => NoContent<SalaryOperationResponse>();
+    public static SalaryOperationResponse NotFound(string message) => NotFound<SalaryOperationResponse>(message);
+    public static SalaryOperationResponse BadRequest(string message) => BadRequest<SalaryOperationResponse>(message);
+    public static SalaryOperationResponse InternalServerError(string message) => InternalServerError<SalaryOperationResponse>(message);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/OperationResponses/SaleOperationResponse.cs

@@ -0,0 +1,24 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts.OperationResponses;
+
+public class SaleOperationResponse : OperationResponse
+{
+    public static SaleOperationResponse OK(List<SaleViewModel> data) => OK<SaleOperationResponse, List<SaleViewModel>>(data);
+
+    public static SaleOperationResponse OK(SaleViewModel data) => OK<SaleOperationResponse, SaleViewModel>(data);
+
+    public static SaleOperationResponse NoContent() => NoContent<SaleOperationResponse>();
+
+    public static SaleOperationResponse NotFound(string message) => NotFound<SaleOperationResponse>(message);
+
+    public static SaleOperationResponse BadRequest(string message) => BadRequest<SaleOperationResponse>(message);
+
+    public static SaleOperationResponse InternalServerError(string message) => InternalServerError<SaleOperationResponse>(message);
+}

MagicCarpetProject/MagicCarpetContracts/AdapterContracts/OperationResponses/TourOperationResponse.cs

@@ -0,0 +1,26 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.AdapterContracts.OperationResponses;
+
+public class TourOperationResponse : OperationResponse
+{
+    public static TourOperationResponse OK(List<TourViewModel> data) => OK<TourOperationResponse, List<TourViewModel>>(data);
+
+    public static TourOperationResponse OK(List<TourHistoryViewModel> data) => OK<TourOperationResponse, List<TourHistoryViewModel>>(data);
+
+    public static TourOperationResponse OK(TourViewModel data) => OK<TourOperationResponse, TourViewModel>(data);
+
+    public static TourOperationResponse NoContent() => NoContent<TourOperationResponse>();
+
+    public static TourOperationResponse NotFound(string message) => NotFound<TourOperationResponse>(message);
+
+    public static TourOperationResponse BadRequest(string message) => BadRequest<TourOperationResponse>(message);
+
+    public static TourOperationResponse InternalServerError(string message) => InternalServerError<TourOperationResponse>(message);
+}

MagicCarpetProject/MagicCarpetContracts/BindingModels/ClientBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BindingModels;
+
+public class ClientBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? FIO { get; set; }
+
+    public string? PhoneNumber { get; set; }
+
+    public double DiscountSize { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/BindingModels/EmployeeBindingModel.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BindingModels;
+
+public class EmployeeBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? FIO { get; set; }
+
+    public string? Email { get; set; }
+
+    public string? PostId { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/BindingModels/PostBindingModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BindingModels;
+
+public class PostBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? PostId => Id;
+
+    public string? PostName { get; set; }
+
+    public string? PostType { get; set; }
+
+    public string? ConfigurationJson { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/BindingModels/SaleBindingModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BindingModels;
+
+public class SaleBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? EmployeeId { get; set; }
+
+    public string? ClientId { get; set; }
+
+    public int DiscountType { get; set; }
+
+    public List<SaleTourBindingModel>? Tours { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/BindingModels/SaleTourBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BindingModels;
+
+public class SaleTourBindingModel
+{
+    public string? SaleId { get; set; }
+
+    public string? TourId { get; set; }
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/BindingModels/TourBindingModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BindingModels;
+
+public class TourBindingModel
+{
+    public string? Id { get; set; }
+    public string? TourName { get; set; }
+    public string? TourCountry { get; set; }
+    public double Price { get; set; }
+    public string? TourType { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/IClientBusinessLogicContract.cs

@@ -0,0 +1,21 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BuisnessLogicContracts;
+
+public interface IClientBusinessLogicContract
+{
+    List<ClientDataModel> GetAllClients();
+
+    ClientDataModel GetClientByData(string data);
+
+    void InsertClient(ClientDataModel clientDataModel);
+
+    void UpdateClient(ClientDataModel clientDataModel);
+
+    void DeleteClient(string id);
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/IEmployeeBusinessLogicContract.cs

@@ -0,0 +1,27 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BuisnessLogicContracts;
+
+public interface IEmployeeBusinessLogicContract
+{
+    List<EmployeeDataModel> GetAllEmployees(bool onlyActive = true);
+
+    List<EmployeeDataModel> GetAllEmployeesByPost(string employeeId, bool onlyActive = true);
+
+    List<EmployeeDataModel> GetAllEmployeesByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+
+    List<EmployeeDataModel> GetAllEmployeesByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+
+    EmployeeDataModel GetEmployeeByData(string data);
+
+    void InsertEmployee(EmployeeDataModel employeeDataModel);
+
+    void UpdateEmployee(EmployeeDataModel employeeDataModel);
+
+    void DeleteEmployee(string id);
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/IPostBusinessLogicContract.cs

@@ -0,0 +1,25 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BuisnessLogicContracts;
+
+public interface IPostBusinessLogicContract
+{
+    List<PostDataModel> GetAllPosts();
+
+    List<PostDataModel> GetAllDataOfPost(string postId);
+
+    PostDataModel GetPostByData(string data);
+
+    void InsertPost(PostDataModel postDataModel);
+
+    void UpdatePost(PostDataModel postDataModel);
+
+    void DeletePost(string id);
+
+    void RestorePost(string id);
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/ISalaryBusinessLogicContract.cs

@@ -0,0 +1,17 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BuisnessLogicContracts;
+
+public interface ISalaryBusinessLogicContract
+{
+    List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate);
+
+    List<SalaryDataModel> GetAllSalariesByPeriodByEmployee(DateTime fromDate, DateTime toDate, string employeeId);
+
+    void CalculateSalaryByMounth(DateTime date);
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/ISaleBusinessLogicContract.cs

@@ -0,0 +1,25 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BuisnessLogicContracts;
+
+public interface ISaleBusinessLogicContract
+{
+    List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate);
+
+    List<SaleDataModel> GetAllSalesByEmployeeByPeriod(string employeeId, DateTime fromDate, DateTime toDate);
+
+    List<SaleDataModel> GetAllSalesByClientByPeriod(string clientId, DateTime fromDate, DateTime toDate);
+
+    List<SaleDataModel> GetAllSalesByTourByPeriod(string tourId, DateTime fromDate, DateTime toDate);
+
+    SaleDataModel GetSaleByData(string data);
+
+    void InsertSale(SaleDataModel saleDataModel);
+
+    void CancelSale(string id);
+}

MagicCarpetProject/MagicCarpetContracts/BusinessLogicContracts/ITourBusinessLogicContract.cs

@@ -0,0 +1,23 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.BuisnessLogicContracts;
+
+public interface ITourBusinessLogicContract
+{
+    List<TourDataModel> GetAllTours();
+
+    List<TourHistoryDataModel> GetTourHistoryByTour(string productId);
+
+    TourDataModel GetTourByData(string data);
+
+    void InsertTour(TourDataModel tourDataModel);
+
+    void UpdateTour(TourDataModel tourDataModel);
+
+    void DeleteTour(string id);
+}

MagicCarpetProject/MagicCarpetContracts/DataModels/EmployeeDataModel.cs

@@ -1,6 +1,7 @@
 using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
+using Microsoft.Extensions.Hosting;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -12,6 +13,8 @@ namespace MagicCarpetContracts.DataModels;
 
 public class EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
 {
+    private readonly PostDataModel? _post;
+
     public string Id { get; private set; } = id;
 
     public string FIO { get; private set; } = fio;
@@ -26,6 +29,17 @@ public class EmployeeDataModel(string id, string fio, string email, string postI
 
     public bool IsDeleted { get; private set; } = isDeleted;
 
+    public string PostName => _post?.PostName ?? string.Empty;
+
+    public EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate, 
+        bool isDeleted, PostDataModel post) : this(id, fio, email, postId, birthDate, employmentDate, isDeleted)
+    {
+        _post = post;
+    }
+
+    public EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, 
+        DateTime employmentDate) : this(id, fio, email, postId, birthDate, employmentDate, false) { }
+
     public void Validate()
     {
         if (Id.IsEmpty())

MagicCarpetProject/MagicCarpetContracts/DataModels/PostDataModel.cs

@@ -2,6 +2,10 @@
 using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
+using Microsoft.Extensions.Configuration;
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -10,15 +14,26 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetContracts.DataModels;
 
-public class PostDataModel(string id, string postId, string postName, PostType postType, double salary, bool isActual, DateTime changeDate) : IValidation
+public class PostDataModel(string postId, string postName, PostType postType, PostConfiguration configuration) : IValidation
 {
-    public string Id { get; private set; } = id;
-    public string PostId { get; private set; } = postId;
+    public string Id { get; private set; } = postId;
     public string PostName { get; private set; } = postName;
     public PostType PostType { get; private set; } = postType;
-    public double Salary { get; private set; } = salary;
-    public bool IsActual { get; private set; } = isActual;
-    public DateTime ChangeDate { get; private set; } = changeDate;
+    public PostConfiguration ConfigurationModel { get; private set; } = configuration;
+
+    public PostDataModel(string postId, string postName, PostType postType, string configurationJson) : this(postId, postName, postType, (PostConfiguration)null)
+    {
+        var obj = JToken.Parse(configurationJson);
+        if (obj is not null)
+        {
+            ConfigurationModel = obj.Value<string>("Type") switch
+            {
+                nameof(TravelAgentPostConfiguration) => JsonConvert.DeserializeObject<TravelAgentPostConfiguration>(configurationJson)!,
+                nameof(ChiefPostConfiguration) => JsonConvert.DeserializeObject<ChiefPostConfiguration>(configurationJson)!,
+                _ => JsonConvert.DeserializeObject<PostConfiguration>(configurationJson)!,
+            };
+        }
+    }
 
     public void Validate()
     {
@@ -26,15 +41,13 @@ public class PostDataModel(string id, string postId, string postName, PostType p
             throw new ValidationException("Field Id is empty");
         if (!Id.IsGuid())
             throw new ValidationException("The value in the field Id is not a unique identifier");
-        if (PostId.IsEmpty())
-            throw new ValidationException("Field PostId is empty");
-        if (!PostId.IsGuid())
-            throw new ValidationException("The value in the field PostId is not a unique identifier");
         if (PostName.IsEmpty())
             throw new ValidationException("Field PostName is empty");
         if (PostType == PostType.None)
             throw new ValidationException("Field PostType is empty");
-        if (Salary <= 0)
-            throw new ValidationException("Field Salary is empty");
+        if (ConfigurationModel is null)
+            throw new ValidationException("Field ConfigurationModel is not initialized");
+        if (ConfigurationModel!.Rate <= 0)
+            throw new ValidationException("Field Rate is less or equal zero");
     }
 }

MagicCarpetProject/MagicCarpetContracts/DataModels/SalaryDataModel.cs

@@ -11,12 +11,20 @@ namespace MagicCarpetContracts.DataModels;
 
 public class SalaryDataModel(string employeeId, DateTime salaryDate, double employeeSalary) : IValidation
 {
+    private readonly EmployeeDataModel? _employee;
     public string EmployeeId { get; private set; } = employeeId;
 
     public DateTime SalaryDate { get; private set; } = salaryDate;
 
     public double Salary { get; private set; } = employeeSalary;
 
+    public string EmployeeFIO => _employee?.FIO ?? string.Empty;
+
+    public SalaryDataModel(string employeeId, DateTime salaryDate, double employeeSalary, EmployeeDataModel employee) : this(employeeId, salaryDate, employeeSalary)
+    {
+        _employee = employee;
+    }
+
     public void Validate()
     {
         if (EmployeeId.IsEmpty())

MagicCarpetProject/MagicCarpetContracts/DataModels/SaleDataModel.cs

@@ -10,25 +10,78 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetContracts.DataModels;
 
-public class SaleDataModel(string id, string employeeId, string? clientId, double sum, DiscountType discountType,
-    double discount, bool isCancel, List<SaleTourDataModel> tours) : IValidation
+public class SaleDataModel : IValidation
 {
-    public string Id { get; private set; } = id;
+    private readonly ClientDataModel? _client;
 
-    public string EmployeeId { get; private set; } = employeeId;
+    private readonly EmployeeDataModel? _employee;
 
-    public string? ClientId { get; private set; } = clientId;
+    public string Id { get; private set; }
+
+    public string EmployeeId { get; private set; }
+
+    public string? ClientId { get; private set; }
 
     public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
-    public double Sum { get; private set; } = sum;
 
-    public DiscountType DiscountType { get; private set; } = discountType;
+    public double Sum { get; private set; }
 
-    public double Discount { get; private set; } = discount;
+    public DiscountType DiscountType { get; private set; }
 
-    public bool IsCancel { get; private set; } = isCancel;
+    public double Discount { get; private set; }
 
-    public List<SaleTourDataModel> Tours { get; private set; } = tours;
+    public bool IsCancel { get; private set; }
+
+    public List<SaleTourDataModel>? Tours { get; private set; }
+
+    public string ClientFIO => _client?.FIO ?? string.Empty;
+
+    public string EmployeeFIO => _employee?.FIO ?? string.Empty;
+
+    public SaleDataModel(string id, string employeeId, string? clientId, DiscountType discountType, bool isCancel, List<SaleTourDataModel> saleTours)
+    {
+        Id = id;
+        EmployeeId = employeeId;
+        ClientId = clientId;
+        DiscountType = discountType;
+        IsCancel = isCancel;
+        Tours = saleTours;
+        var percent = 0.0;
+        foreach (DiscountType elem in Enum.GetValues<DiscountType>())
+        {
+            if ((elem & discountType) != 0)
+            {
+                switch (elem)
+                {
+                    case DiscountType.None:
+                        break;
+                    case DiscountType.OnSale:
+                        percent += 0.1;
+                        break;
+                    case DiscountType.RegularCustomer:
+                        percent += 0.5;
+                        break;
+                    case DiscountType.Certificate:
+                        percent += 0.3;
+                        break;
+                }
+            }
+        }
+        Sum = Tours?.Sum(x => x.Price * x.Count) ?? 0;
+        Discount = Sum * percent;
+    }
+
+    public SaleDataModel(string id, string employeeId, string? clientId, double sum, DiscountType discountType, double discount, bool isCancel,
+        List<SaleTourDataModel> saleTours, EmployeeDataModel employee, ClientDataModel? client) : this(id, employeeId, clientId, discountType, isCancel, saleTours)
+    {
+        Sum = sum;
+        Discount = discount;
+        _employee = employee;
+        _client = client;
+    }
+
+    public SaleDataModel(string id, string employeeId, string? clientId, int discountType, 
+        List<SaleTourDataModel> tours) : this(id, employeeId, clientId, (DiscountType)discountType, false, tours) { }
 
     public void Validate()
     {

MagicCarpetProject/MagicCarpetContracts/DataModels/SaleTourDataModel.cs

@@ -3,20 +3,32 @@ using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace MagicCarpetContracts.DataModels;
 
-public class SaleTourDataModel(string saleId, string cocktailId, int count) : IValidation
+public class SaleTourDataModel(string saleId, string tourId, int count, double price) : IValidation
 {
+    private readonly TourDataModel? _tour;
+
     public string SaleId { get; private set; } = saleId;
 
-    public string TourId { get; private set; } = cocktailId;
+    public string TourId { get; private set; } = tourId;
 
     public int Count { get; private set; } = count;
 
+    public double Price { get; private set; } = price;
+
+    public string TourName => _tour?.TourName ?? string.Empty;
+
+    public SaleTourDataModel(string saleId, string tourId, int count, double price, TourDataModel tour) : this(saleId, tourId, count, price)
+    {
+        _tour = tour;
+    }
+
     public void Validate()
     {
         if (SaleId.IsEmpty())
@@ -33,5 +45,8 @@ public class SaleTourDataModel(string saleId, string cocktailId, int count) : IV
 
         if (Count <= 0)
             throw new ValidationException("Field Count is less than or equal to 0");
+
+        if (Price <= 0)
+            throw new ValidationException("Field Price is less than or equal to 0");
     }
 }

MagicCarpetProject/MagicCarpetContracts/DataModels/TourDataModel.cs

@@ -18,7 +18,7 @@ public class TourDataModel(string id, string tourName, string tourCountry, doubl
     public string TourName { get; private set; } = tourName;
     public string TourCountry { get; private set; } = tourCountry;
     public double Price { get; private set; } = price;
-    public TourType Type { get; private set; } = tourType;
+    public TourType TourType { get; private set; } = tourType;
 
     public void Validate()
     {
@@ -32,7 +32,7 @@ public class TourDataModel(string id, string tourName, string tourCountry, doubl
             throw new ValidationException("Field TourCountry is empty");
         if (Price <= 0)
             throw new ValidationException("Field Price is less than or equal to 0");
-        if (Type == TourType.None)
+        if (TourType == TourType.None)
             throw new ValidationException("Field Type is empty");
     }
 }

MagicCarpetProject/MagicCarpetContracts/DataModels/TourHistoryDataModel.cs

@@ -11,12 +11,22 @@ namespace MagicCarpetContracts.DataModels;
 
 public class TourHistoryDataModel(string tourId, double oldPrice) : IValidation
 {
+    private readonly TourDataModel? _tour;
+
     public string TourId { get; private set; } = tourId;
 
     public double OldPrice { get; private set; } = oldPrice;
 
     public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
 
+    public string TourName => _tour?.TourName ?? string.Empty;
+
+    public TourHistoryDataModel(string tourId, double oldPrice, DateTime changeDate, TourDataModel tour) : this(tourId, oldPrice)
+    {
+        ChangeDate = changeDate;
+        _tour = tour;
+    }
+
     public void Validate()
     {
         if (TourId.IsEmpty())

MagicCarpetProject/MagicCarpetContracts/Exceptions/ElementDeletedException.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class ElementDeletedException : Exception
+{
+    public ElementDeletedException(string id) : base($"Cannot modify a deleted item (id: {id})") { }
+}

MagicCarpetProject/MagicCarpetContracts/Exceptions/ElementExistsException.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class ElementExistsException : Exception
+{
+    public string ParamName { get; private set; }
+
+    public string ParamValue { get; private set; }
+
+    public ElementExistsException(string paramName, string paramValue) : base($"There is already an element with value{paramValue} of parameter {paramName}")
+    {
+        ParamName = paramName;
+        ParamValue = paramValue;
+    }
+}

MagicCarpetProject/MagicCarpetContracts/Exceptions/ElementNotFoundException .cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class ElementNotFoundException : Exception
+{
+    public string Value { get; private set; }
+
+    public ElementNotFoundException(string value) : base($"Element not found at value = {value}")
+    {
+        Value = value;
+    }
+}

MagicCarpetProject/MagicCarpetContracts/Exceptions/IncorrectDatesException .cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class IncorrectDatesException : Exception
+{
+    public IncorrectDatesException(DateTime start, DateTime end) : base($"The end date must be later than the start date.. StartDate: " +
+        $"{start:dd.MM.YYYY}. EndDate: {end:dd.MM.YYYY}") { }
+}

MagicCarpetProject/MagicCarpetContracts/Exceptions/NullListException.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class NullListException : Exception
+{
+    public NullListException() : base("The returned list is null") { }
+}

MagicCarpetProject/MagicCarpetContracts/Exceptions/StorageException .cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Exceptions;
+
+public class StorageException : Exception
+{
+    public StorageException(Exception ex) : base($"Error while working in storage: {ex.Message}", ex) { }
+}

MagicCarpetProject/MagicCarpetContracts/Extensions/DateTimeExtensions.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Extensions;
+
+public static class DateTimeExtensions
+{
+    public static bool IsDateNotOlder(this DateTime date, DateTime olderDate)
+    {
+        return date >= olderDate;
+    }
+}

MagicCarpetProject/MagicCarpetContracts/Infrastructure/IConfigurationDatabase.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Infrastructure;
+
+public interface IConfigurationDatabase
+{
+    string ConnectionString { get; }
+}

MagicCarpetProject/MagicCarpetContracts/Infrastructure/IConfigurationSalary.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Infrastructure;
+
+public interface IConfigurationSalary
+{
+    double ExtraSaleSum { get; }
+
+    int MaxConcurrentThreads { get; }
+}

MagicCarpetProject/MagicCarpetContracts/Infrastructure/OperationResponse.cs

@@ -0,0 +1,47 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Infrastructure;
+
+public class OperationResponse
+{
+    protected HttpStatusCode StatusCode { get; set; }
+
+    protected object? Result { get; set; }
+
+    public IActionResult GetResponse(HttpRequest request, HttpResponse response)
+    {
+        ArgumentNullException.ThrowIfNull(request);
+        ArgumentNullException.ThrowIfNull(response);
+
+        response.StatusCode = (int)StatusCode;
+
+        if (Result is null)
+        {
+            return new StatusCodeResult((int)StatusCode);
+        }
+
+        return new ObjectResult(Result);
+    }
+
+    protected static TResult OK<TResult, TData>(TData data) where TResult : OperationResponse,
+        new() => new() { StatusCode = HttpStatusCode.OK, Result = data };
+
+    protected static TResult NoContent<TResult>() where TResult : OperationResponse,
+        new() => new() { StatusCode = HttpStatusCode.NoContent };
+
+    protected static TResult BadRequest<TResult>(string? errorMessage = null) where TResult : OperationResponse,
+        new() => new() { StatusCode = HttpStatusCode.BadRequest, Result = errorMessage };
+
+    protected static TResult NotFound<TResult>(string? errorMessage = null) where TResult : OperationResponse,
+        new() => new() { StatusCode = HttpStatusCode.NotFound, Result = errorMessage };
+
+    protected static TResult InternalServerError<TResult>(string? errorMessage = null) where TResult : OperationResponse,
+        new() => new() { StatusCode = HttpStatusCode.InternalServerError, Result = errorMessage };
+}

MagicCarpetProject/MagicCarpetContracts/Infrastructure/PostConfigurations/ChiefPostConfiguration.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Infrastructure.PostConfigurations;
+
+public class ChiefPostConfiguration : PostConfiguration
+{
+    public override string Type => nameof(ChiefPostConfiguration);
+    public double PersonalCountTrendPremium { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/Infrastructure/PostConfigurations/PostConfiguration.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Infrastructure.PostConfigurations;
+
+public class PostConfiguration
+{
+    public virtual string Type => nameof(PostConfiguration);
+    public double Rate { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/Infrastructure/PostConfigurations/TravelAgentPostConfiguration.cs

@@ -0,0 +1,15 @@
+using Microsoft.Extensions.Configuration;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.Infrastructure.PostConfigurations;
+
+public class TravelAgentPostConfiguration : PostConfiguration
+{
+    public override string Type => nameof(TravelAgentPostConfiguration);
+    public double SalePercent { get; set; }
+    public double BonusForExtraSales { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/MagicCarpetContracts.csproj

@@ -6,4 +6,10 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.3.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Abstractions" Version="2.3.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.3.0" />
+  </ItemGroup>
+
 </Project>

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/IClientStorageContract.cs

@@ -0,0 +1,25 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface IClientStorageContract
+{
+    List<ClientDataModel> GetList();
+
+    ClientDataModel? GetElementById(string id);
+
+    ClientDataModel? GetElementByPhoneNumber(string phoneNumber);
+
+    ClientDataModel? GetElementByFIO(string fio);
+
+    void AddElement(ClientDataModel clientDataModel);
+
+    void UpdElement(ClientDataModel clientDataModel);
+
+    void DelElement(string id);
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/IEmployeeStorageContract.cs

@@ -0,0 +1,28 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface IEmployeeStorageContract
+{
+    List<EmployeeDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null,
+        DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null);
+
+    EmployeeDataModel? GetElementById(string id);
+
+    EmployeeDataModel? GetElementByFIO(string fio);
+
+    EmployeeDataModel? GetElementByEmail(string email);
+
+    void AddElement(EmployeeDataModel employeeDataModel);
+
+    void UpdElement(EmployeeDataModel employeeDataModel);
+
+    void DelElement(string id);
+
+    int GetEmployeeTrend(DateTime fromPeriod, DateTime toPeriod);
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/IPostStorageContract.cs

@@ -0,0 +1,20 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface IPostStorageContract
+{
+    List<PostDataModel> GetList();
+    List<PostDataModel> GetPostWithHistory(string postId);
+    PostDataModel? GetElementById(string id);
+    PostDataModel? GetElementByName(string name);
+    void AddElement(PostDataModel postDataModel);
+    void UpdElement(PostDataModel postDataModel);
+    void DelElement(string id);
+    void ResElement(string id);
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/ISalaryStorageContract.cs

@@ -0,0 +1,15 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface ISalaryStorageContract
+{
+    List<SalaryDataModel> GetList(DateTime? startDate, DateTime? endDate, string? employeeId = null);
+
+    void AddElement(SalaryDataModel salaryDataModel);
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/ISaleStorageContract.cs

@@ -0,0 +1,20 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface ISaleStorageContract
+{
+    List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? employeeId = null, 
+        string? clientId = null, string? tourId = null);
+
+    SaleDataModel? GetElementById(string id);
+
+    void AddElement(SaleDataModel saleDataModel);
+
+    void DelElement(string id);
+}

MagicCarpetProject/MagicCarpetContracts/StoragesContracts/ITourStorageContract.cs

@@ -0,0 +1,19 @@
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.StoragesContracts;
+
+public interface ITourStorageContract
+{
+    List<TourDataModel> GetList();
+    List<TourHistoryDataModel> GetHistoryByTourId(string tourId);
+    TourDataModel? GetElementById(string id);
+    TourDataModel? GetElementByName(string name);
+    void AddElement(TourDataModel tourDataModel);
+    void UpdElement(TourDataModel tourDataModel);
+    void DelElement(string id);
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/ClientViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class ClientViewModel
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public required string PhoneNumber { get; set; }
+
+    public double DiscountSize { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/EmployeeViewModel.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class EmployeeViewModel
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public string Email { get; set; }
+
+    public required string PostId { get; set; }
+
+    public required string PostName { get; set; }
+
+    public bool IsDeleted { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/PostViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class PostViewModel
+{
+    public required string Id { get; set; }
+
+    public required string PostName { get; set; }
+
+    public required string PostType { get; set; }
+
+    public required string Configuration { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/SalaryViewModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class SalaryViewModel
+{
+    public required string EmployeeId { get; set; }
+    public required string EmployeeFIO { get; set; }
+    public DateTime SalaryDate { get; set; }
+    public double Salary { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/SaleTourViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class SaleTourViewModel
+{
+    public required string TourId { get; set; }
+
+    public required string TourName { get; set; }
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/SaleViewModel.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class SaleViewModel
+{
+    public required string Id { get; set; }
+
+    public required string EmployeeId { get; set; }
+
+    public required string EmployeeFIO { get; set; }
+
+    public string? ClientId { get; set; }
+
+    public string? ClientFIO { get; set; }
+
+    public DateTime SaleDate { get; set; }
+
+    public double Sum { get; set; }
+
+    public required string DiscountType { get; set; }
+
+    public double Discount { get; set; }
+
+    public bool IsCancel { get; set; }
+
+    public required List<SaleTourViewModel> Tours { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/TourHistoryViewModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class TourHistoryViewModel
+{
+    public required string TourName { get; set; }
+
+    public double OldPrice { get; set; }
+
+    public DateTime ChangeDate { get; set; }
+}

MagicCarpetProject/MagicCarpetContracts/ViewModels/TourViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetContracts.ViewModels;
+
+public class TourViewModel
+{
+    public required string Id { get; set; }
+
+    public required string TourName { get; set; }
+
+    public required string TourType { get; set; }
+
+    public string? TourCountry { get; set; }
+
+    public double Price { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/DefaultConfigurationDatabase.cs

@@ -0,0 +1,8 @@
+using MagicCarpetContracts.Infrastructure;
+
+namespace MagicCarpetDatabase;
+
+class DefaultConfigurationDatabase : IConfigurationDatabase
+{
+    public string ConnectionString => "";
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/ClientStorageContract.cs

@@ -0,0 +1,144 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class ClientStorageContract : IClientStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+    public ClientStorageContract(MagicCarpetDbContext magicCarpetDbContext)
+    {
+        _dbContext = magicCarpetDbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.AddMaps(typeof(MagicCarpetDbContext).Assembly);
+        });
+        _mapper = new Mapper(config);
+    }
+    public List<ClientDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Clients.Select(x => _mapper.Map<ClientDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public ClientDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<ClientDataModel>(GetClientById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public ClientDataModel? GetElementByFIO(string fio)
+    {
+        try
+        {
+            return _mapper.Map<ClientDataModel>(_dbContext.Clients.FirstOrDefault(x => x.FIO == fio));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public ClientDataModel? GetElementByPhoneNumber(string phoneNumber)
+    {
+        try
+        {
+            return _mapper.Map<ClientDataModel>(_dbContext.Clients.FirstOrDefault(x => x.PhoneNumber == phoneNumber));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public void AddElement(ClientDataModel clientDataModel)
+    {
+        try
+        {
+            _dbContext.Clients.Add(_mapper.Map<Client>(clientDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", clientDataModel.Id);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Clients_PhoneNumber" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PhoneNumber", clientDataModel.PhoneNumber);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public void UpdElement(ClientDataModel clientDataModel)
+    {
+        try
+        {
+            var element = GetClientById(clientDataModel.Id) ?? throw new ElementNotFoundException(clientDataModel.Id);
+            _dbContext.Clients.Update(_mapper.Map(clientDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Clients_PhoneNumber" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PhoneNumber", clientDataModel.PhoneNumber);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetClientById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Clients.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    private Client? GetClientById(string id) => _dbContext.Clients.FirstOrDefault(x => x.Id == id);
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/EmployeeStorageContract.cs

@@ -0,0 +1,183 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class EmployeeStorageContract : IEmployeeStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public EmployeeStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Post, PostDataModel>()
+                .ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+            cfg.CreateMap<Employee, EmployeeDataModel>();
+            cfg.CreateMap<EmployeeDataModel, Employee>();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<EmployeeDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null)
+    {
+        try
+        {
+            var query = _dbContext.Employees.AsQueryable();
+            if (onlyActive)
+            {
+                query = query.Where(x => !x.IsDeleted);
+            }
+            if (postId is not null)
+            {
+                query = query.Where(x => x.PostId == postId);
+            }
+            if (fromBirthDate is not null && toBirthDate is not null)
+            {
+                query = query.Where(x => x.BirthDate >= DateTime.SpecifyKind(fromBirthDate ?? DateTime.UtcNow, DateTimeKind.Utc) && x.BirthDate <= DateTime.SpecifyKind(toBirthDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            }
+            if (fromEmploymentDate is not null && toEmploymentDate is not null)
+            {
+                query = query.Where(x => x.EmploymentDate >= DateTime.SpecifyKind(fromEmploymentDate ?? DateTime.UtcNow, DateTimeKind.Utc) && x.EmploymentDate <= DateTime.SpecifyKind(toEmploymentDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            }
+            return [.. JoinPost(query).Select(x => _mapper.Map<EmployeeDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public EmployeeDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<EmployeeDataModel>(GetEmployeeById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public EmployeeDataModel? GetElementByFIO(string fio)
+    {
+        try
+        {
+            return _mapper.Map<EmployeeDataModel>(AddPost(_dbContext.Employees.FirstOrDefault(x => x.FIO == fio && !x.IsDeleted)));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public EmployeeDataModel? GetElementByEmail(string email)
+    {
+        try
+        {
+            return _mapper.Map<EmployeeDataModel>(AddPost(_dbContext.Employees.FirstOrDefault(x => x.Email == email && !x.IsDeleted)));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(EmployeeDataModel employeeDataModel)
+    {
+        try
+        {
+            _dbContext.Employees.Add(_mapper.Map<Employee>(employeeDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", employeeDataModel.Id);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(EmployeeDataModel employeeDataModel)
+    {
+        try
+        {
+            var element = GetEmployeeById(employeeDataModel.Id) ?? throw new ElementNotFoundException(employeeDataModel.Id);
+            _dbContext.Employees.Update(_mapper.Map(employeeDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetEmployeeById(id) ?? throw new ElementNotFoundException(id);
+            element.IsDeleted = true;
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public int GetEmployeeTrend(DateTime fromPeriod, DateTime toPeriod)
+    {
+        try
+        {
+            var countWorkersOnBegining = _dbContext.Employees.Count(x => x.EmploymentDate < fromPeriod && (!x.IsDeleted || x.DateOfDelete > fromPeriod));
+            var countWorkersOnEnding = _dbContext.Employees.Count(x => x.EmploymentDate < toPeriod && (!x.IsDeleted || x.DateOfDelete > toPeriod));
+            return countWorkersOnEnding - countWorkersOnBegining;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Employee? GetEmployeeById(string id) => AddPost(_dbContext.Employees.FirstOrDefault(x => x.Id == id && !x.IsDeleted));
+
+    private IQueryable<Employee> JoinPost(IQueryable<Employee> query)
+        => query.GroupJoin(_dbContext.Posts.Where(x => x.IsActual), x => x.PostId, y => y.PostId, (x, y) => new { Employee = x, Post = y })
+                .SelectMany(xy => xy.Post.DefaultIfEmpty(), (x, y) => x.Employee.AddPost(y));
+
+    private Employee? AddPost(Employee? employee)
+        => employee?.AddPost(_dbContext.Posts.FirstOrDefault(x => x.PostId == employee.PostId && x.IsActual));
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/PostStorageContract.cs

@@ -0,0 +1,193 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class PostStorageContract : IPostStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public PostStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Post, PostDataModel>()
+                .ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+            cfg.CreateMap<PostDataModel, Post>()
+                .ForMember(x => x.Id, x => x.Ignore())
+                .ForMember(x => x.PostId, x => x.MapFrom(src => src.Id))
+                .ForMember(x => x.IsActual, x => x.MapFrom(src => true))
+                .ForMember(x => x.ChangeDate, x => x.MapFrom(src => DateTime.UtcNow))
+                .ForMember(x => x.Configuration, x => x.MapFrom(src =>
+                    src.ConfigurationModel));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<PostDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Posts.Select(x => _mapper.Map<PostDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public List<PostDataModel> GetPostWithHistory(string postId)
+    {
+        try
+        {
+            return [.. _dbContext.Posts.Where(x => x.PostId == postId).Select(x => _mapper.Map<PostDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public PostDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<PostDataModel>(_dbContext.Posts.FirstOrDefault(x => x.PostId == id && x.IsActual));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public PostDataModel? GetElementByName(string name)
+    {
+        try
+        {
+            return _mapper.Map<PostDataModel>(_dbContext.Posts.FirstOrDefault(x => x.PostName == name && x.IsActual));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(PostDataModel postDataModel)
+    {
+        try
+        {
+            _dbContext.Posts.Add(_mapper.Map<Post>(postDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostName_IsActual" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PostName", postDataModel.PostName);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostId_IsActual" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PostId", postDataModel.Id);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(PostDataModel postDataModel)
+    {
+        try
+        {
+            var transaction = _dbContext.Database.BeginTransaction();
+            try
+            {
+                var element = GetPostById(postDataModel.Id) ?? throw new ElementNotFoundException(postDataModel.Id);
+                if (!element.IsActual)
+                {
+                    throw new ElementDeletedException(postDataModel.Id);
+                }
+                element.IsActual = false;
+                _dbContext.SaveChanges();
+                var newElement = _mapper.Map<Post>(postDataModel);
+                _dbContext.Posts.Add(newElement);
+                _dbContext.SaveChanges();
+                transaction.Commit();
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostName_IsActual" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PostName", postDataModel.PostName);
+        }
+        catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetPostById(id) ?? throw new ElementNotFoundException(id);
+            if (!element.IsActual)
+            {
+                throw new ElementDeletedException(id);
+            }
+            element.IsActual = false;
+            _dbContext.SaveChanges();
+        }
+        catch
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+    }
+
+    public void ResElement(string id)
+    {
+        try
+        {
+            var element = GetPostById(id) ?? throw new ElementNotFoundException(id);
+            element.IsActual = true;
+            _dbContext.SaveChanges();
+        }
+        catch
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+    }
+
+    private Post? GetPostById(string id) => _dbContext.Posts.Where(x => x.PostId == id)
+        .OrderByDescending(x => x.ChangeDate).FirstOrDefault();
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/SalaryStorageContract.cs

@@ -0,0 +1,66 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class SalaryStorageContract : ISalaryStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SalaryStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Employee, EmployeeDataModel>();
+            cfg.CreateMap<Salary, SalaryDataModel>();
+            cfg.CreateMap<SalaryDataModel, Salary>()
+                .ForMember(dest => dest.EmployeeSalary, opt => opt.MapFrom(src => src.Salary));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SalaryDataModel> GetList(DateTime? startDate, DateTime? endDate, string? employeeId = null)
+    {
+        try
+        {
+            var query = _dbContext.Salaries.Include(d => d.Employee).AsQueryable();
+            if (startDate.HasValue)
+                query = query.Where(x => x.SalaryDate >= DateTime.SpecifyKind(startDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (endDate.HasValue)
+                query = query.Where(x => x.SalaryDate <= DateTime.SpecifyKind(endDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (employeeId != null)
+                query = query.Where(x => x.EmployeeId == employeeId);
+            return [.. query.Select(x => _mapper.Map<SalaryDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(SalaryDataModel salaryDataModel)
+    {
+        try
+        {
+            _dbContext.Salaries.Add(_mapper.Map<Salary>(salaryDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/SaleStorageContract.cs

@@ -0,0 +1,123 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class SaleStorageContract : ISaleStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SaleStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Client, ClientDataModel>();
+            cfg.CreateMap<Tour, TourDataModel>();
+            cfg.CreateMap<Employee, EmployeeDataModel>();
+            cfg.CreateMap<SaleTour, SaleTourDataModel>();
+            cfg.CreateMap<SaleTourDataModel, SaleTour>()
+                    .ForMember(x => x.Tour, x => x.Ignore());
+            cfg.CreateMap<Sale, SaleDataModel>();
+            cfg.CreateMap<SaleDataModel, Sale>()
+                .ForMember(x => x.IsCancel, x => x.MapFrom(src => false))
+                .ForMember(x => x.SaleTours, x => x.MapFrom(src => src.Tours))
+                .ForMember(x => x.Employee, x => x.Ignore())
+                .ForMember(x => x.Client, x => x.Ignore());
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? employeeId = null, string? clientId = null, string? tourId = null)
+    {
+        try
+        {
+            var query = _dbContext.Sales
+                .Include(r => r.Employee)
+                .Include(r => r.Client)
+                .Include(r => r.SaleTours)!
+                .ThenInclude(d => d.Tour)
+                .AsQueryable();
+            if (startDate.HasValue)
+                query = query.Where(x => x.SaleDate >= DateTime.SpecifyKind(startDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (endDate.HasValue)
+                query = query.Where(x => x.SaleDate <= DateTime.SpecifyKind(endDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (employeeId != null)
+                query = query.Where(x => x.EmployeeId == employeeId);
+            if (clientId != null)
+                query = query.Where(x => x.ClientId == clientId);
+            if (tourId != null)
+                query = query.Where(x => x.SaleTours!.Any(y => y.TourId == tourId));
+            var s = query.ToList();
+            return [.. query.Select(x => _mapper.Map<SaleDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public SaleDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<SaleDataModel>(GetSaleById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(SaleDataModel saleDataModel)
+    {
+        try
+        {
+            _dbContext.Sales.Add(_mapper.Map<Sale>(saleDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetSaleById(id) ?? throw new ElementNotFoundException(id);
+            if (element.IsCancel)
+            {
+                throw new ElementDeletedException(id);
+            }
+            element.IsCancel = true;
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Sale? GetSaleById(string id) => _dbContext.Sales.Include(x => x.Client).Include(x => x.Employee).Include(x => x.SaleTours)!.ThenInclude(x => x.Tour).FirstOrDefault(x => x.Id == id);
+}

MagicCarpetProject/MagicCarpetDatabase/Implementations/TourStorageContract.cs

@@ -0,0 +1,184 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Implementations;
+
+public class TourStorageContract : ITourStorageContract
+{
+    private readonly MagicCarpetDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public TourStorageContract(MagicCarpetDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Tour, TourDataModel>();
+            cfg.CreateMap<TourDataModel, Tour>();
+            cfg.CreateMap<TourHistory, TourHistoryDataModel>();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<TourDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Tours.Select(x => _mapper.Map<TourDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public List<TourHistoryDataModel> GetHistoryByTourId(string tourId)
+    {
+        try
+        {
+            return [.. _dbContext.TourHistories.Include(x => x.Tour).Where(x => x.TourId == tourId).OrderByDescending(x => x.ChangeDate).Select(x => _mapper.Map<TourHistoryDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public TourDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<TourDataModel>(GetTourById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public TourDataModel? GetElementByName(string name)
+    {
+        try
+        {
+            return _mapper.Map<TourDataModel>(_dbContext.Tours.FirstOrDefault(x => x.TourName == name));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(TourDataModel tourDataModel)
+    {
+        try
+        {
+            _dbContext.Tours.Add(_mapper.Map<Tour>(tourDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", tourDataModel.Id);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Tours_TourName" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("TourName", tourDataModel.TourName);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(TourDataModel tourDataModel)
+    {
+        try
+        {
+            var transaction = _dbContext.Database.BeginTransaction();
+            try
+            {
+                var element = GetTourById(tourDataModel.Id) ?? throw new ElementNotFoundException(tourDataModel.Id);
+                if (element.Price != tourDataModel.Price)
+                {
+                    _dbContext.TourHistories.Add(new TourHistory() { TourId = element.Id, OldPrice = element.Price });
+                    _dbContext.SaveChanges();
+                }
+                _dbContext.Tours.Update(_mapper.Map(tourDataModel, element));
+                _dbContext.SaveChanges();
+                transaction.Commit();
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Tours_TourName" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("TourName", tourDataModel.TourName);
+        }
+        catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetTourById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Tours.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void ResElement(string id)
+    {
+        try
+        {
+            var element = GetTourById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.SaveChanges();
+        }
+        catch
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+    }
+
+    private Tour? GetTourById(string id) => _dbContext.Tours.FirstOrDefault(x => x.Id == id);
+}

MagicCarpetProject/MagicCarpetDatabase/MagicCarpetDatabase.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="9.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MagicCarpetContracts\MagicCarpetContracts.csproj" />
+  </ItemGroup>
+
+
+</Project>

MagicCarpetProject/MagicCarpetDatabase/MagicCarpetDbContext.cs

@@ -0,0 +1,81 @@
+using MagicCarpetContracts.Infrastructure;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
+using MagicCarpetDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase;
+
+public class MagicCarpetDbContext(IConfigurationDatabase configurationDatabase) : DbContext
+{
+    private readonly IConfigurationDatabase? _configurationDatabase = configurationDatabase;
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        optionsBuilder.UseNpgsql(_configurationDatabase?.ConnectionString, o => o.SetPostgresVersion(12, 2));
+        base.OnConfiguring(optionsBuilder);
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        modelBuilder.Entity<Client>().HasIndex(x => x.PhoneNumber).IsUnique();
+
+        modelBuilder.Entity<Sale>()
+            .HasOne(e => e.Client)
+            .WithMany(e => e.Sales)
+            .OnDelete(DeleteBehavior.SetNull);
+
+        modelBuilder.Entity<Tour>().HasIndex(x => x.TourName).IsUnique();
+
+        modelBuilder.Entity<Post>()
+            .HasIndex(e => new { e.PostName, e.IsActual })
+            .IsUnique()
+            .HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");
+
+        modelBuilder.Entity<Post>()
+            .HasIndex(e => new { e.PostId, e.IsActual })
+            .IsUnique()
+            .HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");
+
+        modelBuilder.Entity<SaleTour>().HasKey(x => new { x.SaleId, x.TourId });
+
+        modelBuilder.Entity<Post>()
+           .Property(x => x.Configuration)
+           .HasColumnType("jsonb")
+           .HasConversion(
+           x => SerializePostConfiguration(x),
+           x => DeserialzePostConfiguration(x));
+    }
+
+    public DbSet<Client> Clients { get; set; }
+
+    public DbSet<Post> Posts { get; set; }
+
+    public DbSet<Tour> Tours { get; set; }
+
+    public DbSet<TourHistory> TourHistories { get; set; }
+
+    public DbSet<Salary> Salaries { get; set; }
+
+    public DbSet<Sale> Sales { get; set; }
+
+    public DbSet<SaleTour> SaleTours { get; set; }
+
+    public DbSet<Employee> Employees { get; set; }
+
+    private static string SerializePostConfiguration(PostConfiguration postConfiguration) => JsonConvert.SerializeObject(postConfiguration);
+    private static PostConfiguration DeserialzePostConfiguration(string jsonString) => JToken.Parse(jsonString).Value<string>("Type") switch
+    {
+        nameof(TravelAgentPostConfiguration) => JsonConvert.DeserializeObject<TravelAgentPostConfiguration>(jsonString)!,
+        nameof(ChiefPostConfiguration) => JsonConvert.DeserializeObject<ChiefPostConfiguration>(jsonString)!,
+        _ => JsonConvert.DeserializeObject<PostConfiguration>(jsonString)!,
+    };
+}

MagicCarpetProject/MagicCarpetDatabase/Migrations/20250408110058_FirstMigration.Designer.cs

@@ -0,0 +1,333 @@
+// <auto-generated />
+using System;
+using MagicCarpetDatabase;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace MagicCarpetDatabase.Migrations
+{
+    [DbContext(typeof(MagicCarpetDbContext))]
+    [Migration("20250408110058_FirstMigration")]
+    partial class FirstMigration
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Client", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<double>("DiscountSize")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PhoneNumber")
+                        .IsUnique();
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Employee", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("BirthDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("EmploymentDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PostId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Employees");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Post", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ChangeDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<bool>("IsActual")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PostId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PostName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("PostType")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Salary")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PostId", "IsActual")
+                        .IsUnique()
+                        .HasFilter("\"IsActual\" = TRUE");
+
+                    b.HasIndex("PostName", "IsActual")
+                        .IsUnique()
+                        .HasFilter("\"IsActual\" = TRUE");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Salary", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("EmployeeId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("EmployeeSalary")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("SalaryDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EmployeeId");
+
+                    b.ToTable("Salaries");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClientId")
+                        .HasColumnType("text");
+
+                    b.Property<double>("Discount")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("DiscountType")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("EmployeeId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsCancel")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTime>("SaleDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientId");
+
+                    b.HasIndex("EmployeeId");
+
+                    b.ToTable("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.SaleTour", b =>
+                {
+                    b.Property<string>("SaleId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("TourId")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("SaleId", "TourId");
+
+                    b.HasIndex("TourId");
+
+                    b.ToTable("SaleTours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Tour", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("TourCountry")
+                        .HasColumnType("text");
+
+                    b.Property<string>("TourName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("TourType")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TourName")
+                        .IsUnique();
+
+                    b.ToTable("Tours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.TourHistory", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ChangeDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<double>("OldPrice")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("TourId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TourId");
+
+                    b.ToTable("TourHistories");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Salary", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Employee", "Employee")
+                        .WithMany("Salaries")
+                        .HasForeignKey("EmployeeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Employee");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Client", "Client")
+                        .WithMany("Sales")
+                        .HasForeignKey("ClientId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.HasOne("MagicCarpetDatabase.Models.Employee", "Employee")
+                        .WithMany("Sales")
+                        .HasForeignKey("EmployeeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Employee");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.SaleTour", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Sale", "Sale")
+                        .WithMany("SaleTours")
+                        .HasForeignKey("SaleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("MagicCarpetDatabase.Models.Tour", "Tour")
+                        .WithMany("SaleTours")
+                        .HasForeignKey("TourId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Sale");
+
+                    b.Navigation("Tour");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.TourHistory", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Tour", "Tour")
+                        .WithMany("TourHistories")
+                        .HasForeignKey("TourId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Tour");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Client", b =>
+                {
+                    b.Navigation("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Employee", b =>
+                {
+                    b.Navigation("Salaries");
+
+                    b.Navigation("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.Navigation("SaleTours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Tour", b =>
+                {
+                    b.Navigation("SaleTours");
+
+                    b.Navigation("TourHistories");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Migrations/20250408110058_FirstMigration.cs

@@ -0,0 +1,253 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace MagicCarpetDatabase.Migrations
+{
+    /// <inheritdoc />
+    public partial class FirstMigration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Clients",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    FIO = table.Column<string>(type: "text", nullable: false),
+                    PhoneNumber = table.Column<string>(type: "text", nullable: false),
+                    DiscountSize = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Clients", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Employees",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    FIO = table.Column<string>(type: "text", nullable: false),
+                    Email = table.Column<string>(type: "text", nullable: false),
+                    PostId = table.Column<string>(type: "text", nullable: false),
+                    BirthDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    EmploymentDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    IsDeleted = table.Column<bool>(type: "boolean", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Employees", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Posts",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    PostId = table.Column<string>(type: "text", nullable: false),
+                    PostName = table.Column<string>(type: "text", nullable: false),
+                    PostType = table.Column<int>(type: "integer", nullable: false),
+                    Salary = table.Column<double>(type: "double precision", nullable: false),
+                    IsActual = table.Column<bool>(type: "boolean", nullable: false),
+                    ChangeDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Posts", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Tours",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    TourName = table.Column<string>(type: "text", nullable: false),
+                    TourCountry = table.Column<string>(type: "text", nullable: true),
+                    Price = table.Column<double>(type: "double precision", nullable: false),
+                    TourType = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Tours", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Salaries",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    EmployeeId = table.Column<string>(type: "text", nullable: false),
+                    SalaryDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    EmployeeSalary = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Salaries", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Salaries_Employees_EmployeeId",
+                        column: x => x.EmployeeId,
+                        principalTable: "Employees",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Sales",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    EmployeeId = table.Column<string>(type: "text", nullable: false),
+                    ClientId = table.Column<string>(type: "text", nullable: true),
+                    SaleDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    DiscountType = table.Column<int>(type: "integer", nullable: false),
+                    Discount = table.Column<double>(type: "double precision", nullable: false),
+                    IsCancel = table.Column<bool>(type: "boolean", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Sales", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Sales_Clients_ClientId",
+                        column: x => x.ClientId,
+                        principalTable: "Clients",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.SetNull);
+                    table.ForeignKey(
+                        name: "FK_Sales_Employees_EmployeeId",
+                        column: x => x.EmployeeId,
+                        principalTable: "Employees",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "TourHistories",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "text", nullable: false),
+                    TourId = table.Column<string>(type: "text", nullable: false),
+                    OldPrice = table.Column<double>(type: "double precision", nullable: false),
+                    ChangeDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TourHistories", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_TourHistories_Tours_TourId",
+                        column: x => x.TourId,
+                        principalTable: "Tours",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "SaleTours",
+                columns: table => new
+                {
+                    SaleId = table.Column<string>(type: "text", nullable: false),
+                    TourId = table.Column<string>(type: "text", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_SaleTours", x => new { x.SaleId, x.TourId });
+                    table.ForeignKey(
+                        name: "FK_SaleTours_Sales_SaleId",
+                        column: x => x.SaleId,
+                        principalTable: "Sales",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_SaleTours_Tours_TourId",
+                        column: x => x.TourId,
+                        principalTable: "Tours",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Clients_PhoneNumber",
+                table: "Clients",
+                column: "PhoneNumber",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Posts_PostId_IsActual",
+                table: "Posts",
+                columns: new[] { "PostId", "IsActual" },
+                unique: true,
+                filter: "\"IsActual\" = TRUE");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Posts_PostName_IsActual",
+                table: "Posts",
+                columns: new[] { "PostName", "IsActual" },
+                unique: true,
+                filter: "\"IsActual\" = TRUE");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Salaries_EmployeeId",
+                table: "Salaries",
+                column: "EmployeeId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Sales_ClientId",
+                table: "Sales",
+                column: "ClientId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Sales_EmployeeId",
+                table: "Sales",
+                column: "EmployeeId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SaleTours_TourId",
+                table: "SaleTours",
+                column: "TourId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TourHistories_TourId",
+                table: "TourHistories",
+                column: "TourId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Tours_TourName",
+                table: "Tours",
+                column: "TourName",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Posts");
+
+            migrationBuilder.DropTable(
+                name: "Salaries");
+
+            migrationBuilder.DropTable(
+                name: "SaleTours");
+
+            migrationBuilder.DropTable(
+                name: "TourHistories");
+
+            migrationBuilder.DropTable(
+                name: "Sales");
+
+            migrationBuilder.DropTable(
+                name: "Tours");
+
+            migrationBuilder.DropTable(
+                name: "Clients");
+
+            migrationBuilder.DropTable(
+                name: "Employees");
+        }
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Migrations/20250410053313_ChangeEmployeeAndPost.Designer.cs

@@ -0,0 +1,337 @@
+// <auto-generated />
+using System;
+using MagicCarpetDatabase;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace MagicCarpetDatabase.Migrations
+{
+    [DbContext(typeof(MagicCarpetDbContext))]
+    [Migration("20250410053313_ChangeEmployeeAndPost")]
+    partial class ChangeEmployeeAndPost
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Client", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<double>("DiscountSize")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PhoneNumber")
+                        .IsUnique();
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Employee", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("BirthDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateOfDelete")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("EmploymentDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PostId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Employees");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Post", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ChangeDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Configuration")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.Property<bool>("IsActual")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PostId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PostName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("PostType")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PostId", "IsActual")
+                        .IsUnique()
+                        .HasFilter("\"IsActual\" = TRUE");
+
+                    b.HasIndex("PostName", "IsActual")
+                        .IsUnique()
+                        .HasFilter("\"IsActual\" = TRUE");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Salary", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("EmployeeId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("EmployeeSalary")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("SalaryDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EmployeeId");
+
+                    b.ToTable("Salaries");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClientId")
+                        .HasColumnType("text");
+
+                    b.Property<double>("Discount")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("DiscountType")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("EmployeeId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsCancel")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTime>("SaleDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientId");
+
+                    b.HasIndex("EmployeeId");
+
+                    b.ToTable("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.SaleTour", b =>
+                {
+                    b.Property<string>("SaleId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("TourId")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("SaleId", "TourId");
+
+                    b.HasIndex("TourId");
+
+                    b.ToTable("SaleTours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Tour", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("TourCountry")
+                        .HasColumnType("text");
+
+                    b.Property<string>("TourName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("TourType")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TourName")
+                        .IsUnique();
+
+                    b.ToTable("Tours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.TourHistory", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ChangeDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<double>("OldPrice")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("TourId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TourId");
+
+                    b.ToTable("TourHistories");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Salary", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Employee", "Employee")
+                        .WithMany("Salaries")
+                        .HasForeignKey("EmployeeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Employee");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Client", "Client")
+                        .WithMany("Sales")
+                        .HasForeignKey("ClientId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.HasOne("MagicCarpetDatabase.Models.Employee", "Employee")
+                        .WithMany("Sales")
+                        .HasForeignKey("EmployeeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Employee");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.SaleTour", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Sale", "Sale")
+                        .WithMany("SaleTours")
+                        .HasForeignKey("SaleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("MagicCarpetDatabase.Models.Tour", "Tour")
+                        .WithMany("SaleTours")
+                        .HasForeignKey("TourId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Sale");
+
+                    b.Navigation("Tour");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.TourHistory", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Tour", "Tour")
+                        .WithMany("TourHistories")
+                        .HasForeignKey("TourId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Tour");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Client", b =>
+                {
+                    b.Navigation("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Employee", b =>
+                {
+                    b.Navigation("Salaries");
+
+                    b.Navigation("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.Navigation("SaleTours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Tour", b =>
+                {
+                    b.Navigation("SaleTours");
+
+                    b.Navigation("TourHistories");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Migrations/20250410053313_ChangeEmployeeAndPost.cs

@@ -0,0 +1,51 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace MagicCarpetDatabase.Migrations
+{
+    /// <inheritdoc />
+    public partial class ChangeEmployeeAndPost : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Salary",
+                table: "Posts");
+
+            migrationBuilder.AddColumn<string>(
+                name: "Configuration",
+                table: "Posts",
+                type: "jsonb",
+                nullable: false,
+                defaultValue: "{\"Rate\": 0, \"Type\": \"PostConfiguration\"}");
+
+            migrationBuilder.AddColumn<DateTime>(
+                name: "DateOfDelete",
+                table: "Employees",
+                type: "timestamp with time zone",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Configuration",
+                table: "Posts");
+
+            migrationBuilder.DropColumn(
+                name: "DateOfDelete",
+                table: "Employees");
+
+            migrationBuilder.AddColumn<double>(
+                name: "Salary",
+                table: "Posts",
+                type: "double precision",
+                nullable: false,
+                defaultValue: 0.0);
+        }
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Migrations/MagicCarpetDbContextModelSnapshot.cs

@@ -0,0 +1,334 @@
+// <auto-generated />
+using System;
+using MagicCarpetDatabase;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace MagicCarpetDatabase.Migrations
+{
+    [DbContext(typeof(MagicCarpetDbContext))]
+    partial class MagicCarpetDbContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Client", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<double>("DiscountSize")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PhoneNumber")
+                        .IsUnique();
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Employee", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("BirthDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateOfDelete")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("EmploymentDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PostId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Employees");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Post", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ChangeDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Configuration")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.Property<bool>("IsActual")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PostId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PostName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("PostType")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PostId", "IsActual")
+                        .IsUnique()
+                        .HasFilter("\"IsActual\" = TRUE");
+
+                    b.HasIndex("PostName", "IsActual")
+                        .IsUnique()
+                        .HasFilter("\"IsActual\" = TRUE");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Salary", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("EmployeeId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("EmployeeSalary")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("SalaryDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EmployeeId");
+
+                    b.ToTable("Salaries");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<string>("ClientId")
+                        .HasColumnType("text");
+
+                    b.Property<double>("Discount")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("DiscountType")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("EmployeeId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("IsCancel")
+                        .HasColumnType("boolean");
+
+                    b.Property<DateTime>("SaleDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientId");
+
+                    b.HasIndex("EmployeeId");
+
+                    b.ToTable("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.SaleTour", b =>
+                {
+                    b.Property<string>("SaleId")
+                        .HasColumnType("text");
+
+                    b.Property<string>("TourId")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("SaleId", "TourId");
+
+                    b.HasIndex("TourId");
+
+                    b.ToTable("SaleTours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Tour", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("TourCountry")
+                        .HasColumnType("text");
+
+                    b.Property<string>("TourName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("TourType")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TourName")
+                        .IsUnique();
+
+                    b.ToTable("Tours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.TourHistory", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("ChangeDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<double>("OldPrice")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("TourId")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TourId");
+
+                    b.ToTable("TourHistories");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Salary", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Employee", "Employee")
+                        .WithMany("Salaries")
+                        .HasForeignKey("EmployeeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Employee");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Client", "Client")
+                        .WithMany("Sales")
+                        .HasForeignKey("ClientId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.HasOne("MagicCarpetDatabase.Models.Employee", "Employee")
+                        .WithMany("Sales")
+                        .HasForeignKey("EmployeeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Employee");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.SaleTour", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Sale", "Sale")
+                        .WithMany("SaleTours")
+                        .HasForeignKey("SaleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("MagicCarpetDatabase.Models.Tour", "Tour")
+                        .WithMany("SaleTours")
+                        .HasForeignKey("TourId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Sale");
+
+                    b.Navigation("Tour");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.TourHistory", b =>
+                {
+                    b.HasOne("MagicCarpetDatabase.Models.Tour", "Tour")
+                        .WithMany("TourHistories")
+                        .HasForeignKey("TourId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Tour");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Client", b =>
+                {
+                    b.Navigation("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Employee", b =>
+                {
+                    b.Navigation("Salaries");
+
+                    b.Navigation("Sales");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Sale", b =>
+                {
+                    b.Navigation("SaleTours");
+                });
+
+            modelBuilder.Entity("MagicCarpetDatabase.Models.Tour", b =>
+                {
+                    b.Navigation("SaleTours");
+
+                    b.Navigation("TourHistories");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Client.cs

@@ -0,0 +1,24 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+[AutoMap(typeof(ClientDataModel), ReverseMap = true)]
+public class Client
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; } 
+
+    public required string PhoneNumber { get;  set; } 
+
+    public double DiscountSize { get;  set; }
+    [ForeignKey("ClientId")]
+    public List<Sale>? Sales { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Employee.cs

@@ -0,0 +1,41 @@
+using AutoMapper;
+using MagicCarpetContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+[AutoMap(typeof(EmployeeDataModel), ReverseMap = true)]
+public class Employee
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public string Email { get; set; }
+
+    public required string PostId { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+
+    public bool IsDeleted { get; set; }
+
+    public DateTime? DateOfDelete { get; set; }
+    [NotMapped]
+    public Post? Post { get; set; }
+    [ForeignKey("EmployeeId")]
+    public List<Salary>? Salaries { get; set; }
+    [ForeignKey("EmployeeId")]
+    public List<Sale>? Sales { get; set; }
+    public Employee AddPost(Post? post)
+    {
+        Post = post;
+        return this;
+    }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Post.cs

@@ -0,0 +1,21 @@
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class Post
+{
+    public required string Id { get; set; } = Guid.NewGuid().ToString();
+    public required string PostId { get; set; }
+    public required string PostName { get; set; }
+    public PostType PostType { get; set; }
+    public required PostConfiguration Configuration { get; set; }
+    public bool IsActual { get; set; }
+    public DateTime ChangeDate { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Salary.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class Salary
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+    public required string EmployeeId { get; set; }
+    public DateTime SalaryDate { get; set; } 
+    public double EmployeeSalary { get; set; }
+    public Employee? Employee { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Sale.cs

@@ -0,0 +1,32 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class Sale
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string EmployeeId { get; set; } 
+     
+    public string? ClientId { get; set; } 
+
+    public DateTime SaleDate { get; set; } 
+    public double Sum { get; set; } 
+
+    public DiscountType DiscountType { get; set; } 
+
+    public double Discount { get; set; } 
+
+    public bool IsCancel { get; set; }
+    public Employee? Employee { get; set; }
+    public Client? Client { get; set; }
+    [ForeignKey("SaleId")]
+    public List<SaleTour>? SaleTours { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/SaleTour.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class SaleTour
+{
+    public required string SaleId { get; set; } 
+
+    public required string TourId { get; set; } 
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+
+    public Sale? Sale { get; set; }
+
+    public Tour? Tour { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/Tour.cs

@@ -0,0 +1,23 @@
+using MagicCarpetContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class Tour
+{
+    public required string Id { get; set; } 
+    public required string TourName { get; set; } 
+    public string? TourCountry { get; set; } 
+    public double Price { get; set; } 
+    public required TourType TourType { get; set; }
+    [ForeignKey("TourId")]
+    public List<SaleTour>? SaleTours { get; set; }
+    [ForeignKey("TourId")]
+    public List<TourHistory>? TourHistories { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/Models/TourHistory.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase.Models;
+
+public class TourHistory
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+    public required string TourId { get; set; }
+    public double OldPrice { get;  set; } 
+    public DateTime ChangeDate { get; set; } 
+    public Tour? Tour { get; set; }
+}

MagicCarpetProject/MagicCarpetDatabase/SampleContextFactory.cs

@@ -0,0 +1,16 @@
+using Microsoft.EntityFrameworkCore.Design;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetDatabase;
+
+public class SampleContextFactory : IDesignTimeDbContextFactory<MagicCarpetDbContext>
+{
+    public MagicCarpetDbContext CreateDbContext(string[] args)
+    {
+        return new MagicCarpetDbContext(new DefaultConfigurationDatabase());
+    }
+}

MagicCarpetProject/MagicCarpetProject.sln

@@ -7,6 +7,12 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MagicCarpetContracts", "Mag
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MagicCarpetTests", "MagicCarpetTests\MagicCarpetTests.csproj", "{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MagicCarpetBusinessLogic", "MagicCarpetBusinessLogic\MagicCarpetBusinessLogic.csproj", "{688F9182-851F-4CF8-97CD-9B6F1E43D758}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MagicCarpetDatabase", "MagicCarpetDatabase\MagicCarpetDatabase.csproj", "{C69B43B2-8680-42D7-A111-306E2E8225FE}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MagicCarpetWebApi", "MagicCarpetWebApi\MagicCarpetWebApi.csproj", "{EB1F990E-6604-4DE4-81A9-2D1D15E0240F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +27,18 @@ Global
 		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Release|Any CPU.Build.0 = Release|Any CPU
+		{688F9182-851F-4CF8-97CD-9B6F1E43D758}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{688F9182-851F-4CF8-97CD-9B6F1E43D758}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{688F9182-851F-4CF8-97CD-9B6F1E43D758}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{688F9182-851F-4CF8-97CD-9B6F1E43D758}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C69B43B2-8680-42D7-A111-306E2E8225FE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C69B43B2-8680-42D7-A111-306E2E8225FE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C69B43B2-8680-42D7-A111-306E2E8225FE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C69B43B2-8680-42D7-A111-306E2E8225FE}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EB1F990E-6604-4DE4-81A9-2D1D15E0240F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EB1F990E-6604-4DE4-81A9-2D1D15E0240F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EB1F990E-6604-4DE4-81A9-2D1D15E0240F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EB1F990E-6604-4DE4-81A9-2D1D15E0240F}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/ClientBusinessLogicContractTests.cs

@@ -0,0 +1,355 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.BuisnessLogicContracts;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class ClientBusinessLogicContractTests
+{
+    private IClientBusinessLogicContract _clientBusinessLogicContract;
+    private Mock<IClientStorageContract> _clientStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _clientStorageContract = new Mock<IClientStorageContract>();
+        _clientBusinessLogicContract = new ClientBusinessLogicContract(_clientStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _clientStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllCLients_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<ClientDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "+7-111-111-11-11", 0),
+            new(Guid.NewGuid().ToString(), "fio 2", "+7-555-444-33-23", 10),
+            new(Guid.NewGuid().ToString(), "fio 3", "+7-777-777-7777", 0),
+        };
+        _clientStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        //Act
+        var list = _clientBusinessLogicContract.GetAllClients();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+
+    [Test]
+    public void GetAllClients_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.GetList()).Returns([]);
+        //Act
+        var list = _clientBusinessLogicContract.GetAllClients();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _clientStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllClients_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetAllClients(), Throws.TypeOf<NullListException>());
+        _clientStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllClients_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetAllClients(), Throws.TypeOf<StorageException>());
+        _clientStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetClientByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new ClientDataModel(id, "fio", "+7-111-111-11-11", 0);
+        _clientStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _clientBusinessLogicContract.GetClientByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _clientStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetClientByData_GetByFio_ReturnRecord_Test()
+    {
+        //Arrange
+        var fio = "fio";
+        var record = new ClientDataModel(Guid.NewGuid().ToString(), fio, "+7-111-111-11-11", 0);
+        _clientStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+        //Act
+        var element = _clientBusinessLogicContract.GetClientByData(fio);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.FIO, Is.EqualTo(fio));
+        _clientStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetClientByData_GetByPhoneNumber_ReturnRecord_Test()
+    {
+        //Arrange
+        var phoneNumber = "+7-111-111-11-11";
+        var record = new ClientDataModel(Guid.NewGuid().ToString(), "fio", phoneNumber, 0);
+        _clientStorageContract.Setup(x => x.GetElementByPhoneNumber(phoneNumber)).Returns(record);
+        //Act
+        var element = _clientBusinessLogicContract.GetClientByData(phoneNumber);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.PhoneNumber, Is.EqualTo(phoneNumber));
+        _clientStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetClientByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _clientStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _clientStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+        _clientStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetClientByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _clientStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _clientStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+        _clientStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetClientByData_GetByFio_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+        _clientStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _clientStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+        _clientStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetClientByData_GetByPhoneNumber_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData("+7-111-111-11-12"), Throws.TypeOf<ElementNotFoundException>());
+        _clientStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _clientStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+        _clientStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetClientByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _clientStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _clientStorageContract.Setup(x => x.GetElementByPhoneNumber(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData("fio"), Throws.TypeOf<StorageException>());
+        Assert.That(() => _clientBusinessLogicContract.GetClientByData("+7-111-111-11-12"), Throws.TypeOf<StorageException>());
+        _clientStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _clientStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+        _clientStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertClient_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new ClientDataModel(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 10);
+        _clientStorageContract.Setup(x => x.AddElement(It.IsAny<ClientDataModel>()))
+            .Callback((ClientDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO &&
+                    x.PhoneNumber == record.PhoneNumber && x.DiscountSize == record.DiscountSize;
+            });
+        //Act
+        _clientBusinessLogicContract.InsertClient(record);
+        //Assert
+        _clientStorageContract.Verify(x => x.AddElement(It.IsAny<ClientDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertClient_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.AddElement(It.IsAny<ClientDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.InsertClient(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<ElementExistsException>());
+        _clientStorageContract.Verify(x => x.AddElement(It.IsAny<ClientDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertClient_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.InsertClient(null), Throws.TypeOf<ArgumentNullException>());
+        _clientStorageContract.Verify(x => x.AddElement(It.IsAny<ClientDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertClient_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.InsertClient(new ClientDataModel("id", "fio", "+7-111-111-11-11", 10)), Throws.TypeOf<ValidationException>());
+        _clientStorageContract.Verify(x => x.AddElement(It.IsAny<ClientDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertClient_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.AddElement(It.IsAny<ClientDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.InsertClient(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<StorageException>());
+        _clientStorageContract.Verify(x => x.AddElement(It.IsAny<ClientDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateClient_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new ClientDataModel(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0);
+        _clientStorageContract.Setup(x => x.UpdElement(It.IsAny<ClientDataModel>()))
+            .Callback((ClientDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO &&
+                    x.PhoneNumber == record.PhoneNumber && x.DiscountSize == record.DiscountSize;
+            });
+        //Act
+        _clientBusinessLogicContract.UpdateClient(record);
+        //Assert
+        _clientStorageContract.Verify(x => x.UpdElement(It.IsAny<ClientDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateClient_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.UpdElement(It.IsAny<ClientDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.UpdateClient(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<ElementNotFoundException>());
+        _clientStorageContract.Verify(x => x.UpdElement(It.IsAny<ClientDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateClient_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.UpdElement(It.IsAny<ClientDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.UpdateClient(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<ElementExistsException>());
+        _clientStorageContract.Verify(x => x.UpdElement(It.IsAny<ClientDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateClient_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.UpdateClient(null), Throws.TypeOf<ArgumentNullException>());
+        _clientStorageContract.Verify(x => x.UpdElement(It.IsAny<ClientDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateClient_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.UpdateClient(new ClientDataModel("id", "fio", "+7-111-111-11-11", 10)), Throws.TypeOf<ValidationException>());
+        _clientStorageContract.Verify(x => x.UpdElement(It.IsAny<ClientDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateClient_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.UpdElement(It.IsAny<ClientDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.UpdateClient(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<StorageException>());
+        _clientStorageContract.Verify(x => x.UpdElement(It.IsAny<ClientDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteClient_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _clientStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _clientBusinessLogicContract.DeleteClient(id);
+        //Assert
+        _clientStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteClient_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.DeleteClient(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _clientStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteClient_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.DeleteClient(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _clientBusinessLogicContract.DeleteClient(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _clientStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteClient_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.DeleteClient("id"), Throws.TypeOf<ValidationException>());
+        _clientStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteClient_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _clientStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _clientBusinessLogicContract.DeleteClient(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _clientStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/EmployeeBusinessLogicContractTests.cs

@@ -0,0 +1,586 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class EmployeeBusinessLogicContractTests
+{
+    private EmployeeBusinessLogicContract _employeeBusinessLogicContract;
+    private Mock<IEmployeeStorageContract> _employeeStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _employeeStorageContract = new Mock<IEmployeeStorageContract>();
+        _employeeBusinessLogicContract = new EmployeeBusinessLogicContract(_employeeStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _employeeStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllEmployees_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployees(true);
+        var list = _employeeBusinessLogicContract.GetAllEmployees(false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+            Assert.That(list, Is.EquivalentTo(listOriginal));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, null, null, null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployees_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployees(true);
+        var list = _employeeBusinessLogicContract.GetAllEmployees(false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+            Assert.That(list, Has.Count.EqualTo(0));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllEmployees_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployees(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployees_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployees(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var postId = Guid.NewGuid().ToString();
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployeesByPost(postId, true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByPost(postId, false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+            Assert.That(list, Is.EquivalentTo(listOriginal));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, postId, null, null, null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, postId, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+            Assert.That(list, Has.Count.EqualTo(0));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_PostIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(null, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(string.Empty, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_PostIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost("postId", It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date.AddDays(1), false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+            Assert.That(list, Is.EquivalentTo(listOriginal));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, date, date.AddDays(1), null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, date, date.AddDays(1), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployees(false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+            Assert.That(list, Has.Count.EqualTo(0));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "gg@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date.AddDays(1), false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+            Assert.That(list, Is.EquivalentTo(listOriginal));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, null, null, date, date.AddDays(1)), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, null, null, date, date.AddDays(1)), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+        //Act
+        var listOnlyActive = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(list, Is.Not.Null);
+            Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+            Assert.That(list, Has.Count.EqualTo(0));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new EmployeeDataModel(id, "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _employeeBusinessLogicContract.GetEmployeeByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetByFio_ReturnRecord_Test()
+    {
+        //Arrange
+        var fio = "fio";
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), fio, "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+        //Act
+        var element = _employeeBusinessLogicContract.GetEmployeeByData(fio);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.FIO, Is.EqualTo(fio));
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetByEmail_ReturnRecord_Test()
+    {
+        //Arrange
+        var email = "123@gmail.com";
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), "fio", email, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.GetElementByEmail(email)).Returns(record);
+        //Act
+        var element = _employeeBusinessLogicContract.GetEmployeeByData(email);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Email, Is.EqualTo(email));
+        _employeeStorageContract.Verify(x => x.GetElementByEmail(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetByFio_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetByEmail_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData("123@gmail.com"), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetEmployeeByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _employeeStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData("fio"), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertEmployee_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.AddElement(It.IsAny<EmployeeDataModel>()))
+            .Callback((EmployeeDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO && x.PostId == record.PostId && x.BirthDate == record.BirthDate &&
+                    x.EmploymentDate == record.EmploymentDate && x.IsDeleted == record.IsDeleted;
+            });
+        //Act
+        _employeeBusinessLogicContract.InsertEmployee(record);
+        //Assert
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertEmployee_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.AddElement(It.IsAny<EmployeeDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(new(Guid.NewGuid().ToString(), "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementExistsException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertEmployee_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(null), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertEmployee_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(new EmployeeDataModel("id", "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.AddElement(It.IsAny<EmployeeDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(new(Guid.NewGuid().ToString(), "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateEmployee_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.UpdElement(It.IsAny<EmployeeDataModel>()))
+            .Callback((EmployeeDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO && x.PostId == record.PostId && x.BirthDate == record.BirthDate &&
+                    x.EmploymentDate == record.EmploymentDate && x.IsDeleted == record.IsDeleted;
+            });
+        //Act
+        _employeeBusinessLogicContract.UpdateEmployee(record);
+        //Assert
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateEmployee_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.UpdElement(It.IsAny<EmployeeDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(new(Guid.NewGuid().ToString(), "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateEmployee_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(null), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateEmployee_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(new EmployeeDataModel("id", "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.UpdElement(It.IsAny<EmployeeDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(new(Guid.NewGuid().ToString(), "fio", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteEmployee_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _employeeStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _employeeBusinessLogicContract.DeleteEmployee(id);
+        //Assert
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteEmployee_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _employeeStorageContract.Setup(x => x.DelElement(It.Is((string x) => x != id))).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteEmployee_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteEmployee_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee("id"), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/PostBusinessLogicContractTests.cs

@@ -0,0 +1,450 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class PostBusinessLogicContractTests
+{
+    private PostBusinessLogicContract _postBusinessLogicContract;
+    private Mock<IPostStorageContract> _postStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _postStorageContract = new Mock<IPostStorageContract>();
+        _postBusinessLogicContract = new PostBusinessLogicContract(_postStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _postStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllPosts_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<PostDataModel>()
+        {
+            new(Guid.NewGuid().ToString(),"name 1", PostType.TravelAgent, new PostConfiguration() { Rate = 10 }),
+            new(Guid.NewGuid().ToString(), "name 2", PostType.TravelAgent, new PostConfiguration() { Rate = 10 }),
+            new(Guid.NewGuid().ToString(), "name 3", PostType.TravelAgent, new PostConfiguration() { Rate = 10 }),
+        };
+        _postStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        //Act
+        var list = _postBusinessLogicContract.GetAllPosts();
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(list, Is.Not.Null);
+            Assert.That(list, Is.EquivalentTo(listOriginal));
+        });
+        _postStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllPosts_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetList()).Returns([]);
+        //Act
+        var list = _postBusinessLogicContract.GetAllPosts();
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(list, Is.Not.Null);
+            Assert.That(list, Has.Count.EqualTo(0));
+        });
+    }
+
+    [Test]
+    public void GetAllPosts_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<NullListException>());
+        _postStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllPosts_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var postId = Guid.NewGuid().ToString();
+        var listOriginal = new List<PostDataModel>()
+        {
+            new(postId, "name 1", PostType.TravelAgent, new PostConfiguration() { Rate = 10 }),
+            new(postId, "name 2", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })
+        };
+        _postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _postBusinessLogicContract.GetAllDataOfPost(postId);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(2));
+        _postStorageContract.Verify(x => x.GetPostWithHistory(postId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _postBusinessLogicContract.GetAllDataOfPost(Guid.NewGuid().ToString());
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_PostIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_PostIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost("id"), Throws.TypeOf<ValidationException>());
+        _postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+        _postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetPostByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new PostDataModel(id, "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
+        _postStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _postBusinessLogicContract.GetPostByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetPostByData_GetByName_ReturnRecord_Test()
+    {
+        //Arrange
+        var postName = "name";
+        var record = new PostDataModel(Guid.NewGuid().ToString(), postName, PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
+        _postStorageContract.Setup(x => x.GetElementByName(postName)).Returns(record);
+        //Act
+        var element = _postBusinessLogicContract.GetPostByData(postName);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.PostName, Is.EqualTo(postName));
+        _postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetPostByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetPostByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _postBusinessLogicContract.GetPostByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetPostByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetPostByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetPostByData_GetByName_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetPostByData("name"), Throws.TypeOf<ElementNotFoundException>());
+        _postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetPostByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _postStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetPostByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _postBusinessLogicContract.GetPostByData("name"), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertPost_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
+        _postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>()))
+            .Callback((PostDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.ConfigurationModel.Rate == record.ConfigurationModel.Rate;
+            });
+        //Act
+        _postBusinessLogicContract.InsertPost(record);
+        //Assert
+        _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertPost_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<ElementExistsException>());
+        _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertPost_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.InsertPost(null), Throws.TypeOf<ArgumentNullException>());
+        _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertPost_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.InsertPost(new PostDataModel("id", "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<ValidationException>());
+        _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertPost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdatePost_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
+        _postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>()))
+            .Callback((PostDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.ConfigurationModel.Rate == record.ConfigurationModel.Rate;
+            });
+        //Act
+        _postBusinessLogicContract.UpdatePost(record);
+        //Assert
+        _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdatePost_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<ElementNotFoundException>());
+        _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdatePost_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "anme", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<ElementExistsException>());
+        _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdatePost_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(null), Throws.TypeOf<ArgumentNullException>());
+        _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdatePost_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new PostDataModel("id", "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<ValidationException>());
+        _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdatePost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 })), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeletePost_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _postStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _postBusinessLogicContract.DeletePost(id);
+        //Assert
+        _postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeletePost_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _postStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.DeletePost(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeletePost_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.DeletePost(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _postBusinessLogicContract.DeletePost(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeletePost_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.DeletePost("id"), Throws.TypeOf<ValidationException>());
+        _postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeletePost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.DeletePost(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void RestorePost_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _postStorageContract.Setup(x => x.ResElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _postBusinessLogicContract.RestorePost(id);
+        //Assert
+        _postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void RestorePost_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _postStorageContract.Setup(x => x.ResElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.RestorePost(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void RestorePost_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.RestorePost(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _postBusinessLogicContract.RestorePost(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void RestorePost_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.RestorePost("id"), Throws.TypeOf<ValidationException>());
+        _postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void RestorePost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.ResElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.RestorePost(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/SalaryBusinessLogicContractTests.cs

@@ -0,0 +1,413 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
+using MagicCarpetContracts.StoragesContracts;
+using MagicCarpetTests.Infrastructure;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class SalaryBusinessLogicContractTests
+{
+    private SalaryBusinessLogicContract _salaryBusinessLogicContract;
+    private Mock<ISalaryStorageContract> _salaryStorageContract;
+    private Mock<ISaleStorageContract> _saleStorageContract;
+    private Mock<IPostStorageContract> _postStorageContract;
+    private Mock<IEmployeeStorageContract> _employeeStorageContract;
+    private readonly ConfigurationSalaryTest _salaryConfigurationTest = new();
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _salaryStorageContract = new Mock<ISalaryStorageContract>();
+        _saleStorageContract = new Mock<ISaleStorageContract>();
+        _postStorageContract = new Mock<IPostStorageContract>();
+        _employeeStorageContract = new Mock<IEmployeeStorageContract>();
+        _salaryBusinessLogicContract = new SalaryBusinessLogicContract(_salaryStorageContract.Object,
+            _saleStorageContract.Object, _postStorageContract.Object, _employeeStorageContract.Object, new Mock<ILogger>().Object, _salaryConfigurationTest);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _salaryStorageContract.Reset();
+        _saleStorageContract.Reset();
+        _postStorageContract.Reset();
+        _employeeStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllSalaries_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var startDate = DateTime.UtcNow;
+        var endDate = DateTime.UtcNow.AddDays(1);
+        var listOriginal = new List<SalaryDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), DateTime.UtcNow, 10),
+            new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(1), 14),
+            new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(-1), 30),
+        };
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _salaryBusinessLogicContract.GetAllSalariesByPeriod(startDate, endDate);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _salaryStorageContract.Verify(x => x.GetList(startDate, endDate, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalaries_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _salaryBusinessLogicContract.GetAllSalariesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalaries_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var dateTime = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(dateTime, dateTime), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(dateTime, dateTime.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalaries_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalaries_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var startDate = DateTime.UtcNow;
+        var endDate = DateTime.UtcNow.AddDays(1);
+        var employeeId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SalaryDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), DateTime.UtcNow, 10),
+            new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(1), 14),
+            new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(-1), 30),
+        };
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(startDate, endDate, employeeId);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _salaryStorageContract.Verify(x => x.GetList(startDate, endDate, employeeId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), Guid.NewGuid().ToString());
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var dateTime = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(dateTime, dateTime, Guid.NewGuid().ToString()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(dateTime, dateTime.AddSeconds(-1), Guid.NewGuid().ToString()), Throws.TypeOf<IncorrectDatesException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_EmployeeIdIsNUllOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_EmployeeIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), "employeeId"), Throws.TypeOf<ValidationException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_CalculateSalary_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        var rate = 2000.0;
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = rate }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        var sum = 0.0;
+        _salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+            .Callback((SalaryDataModel x) =>
+            {
+                sum = x.Salary;
+            });
+        //Act
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+        //Assert
+        Assert.That(sum, Is.EqualTo(rate));
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_WithSeveralEmployees_Test()
+    {
+        //Arrange
+        var employee1Id = Guid.NewGuid().ToString();
+        var employee2Id = Guid.NewGuid().ToString();
+        var employee3Id = Guid.NewGuid().ToString();
+        var list = new List<EmployeeDataModel>() {
+            new(employee1Id, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+            new(employee2Id, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+            new(employee3Id, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)
+        };
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employee1Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee1Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee2Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee3Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee3Id, null, DiscountType.None, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 100 }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns(list);
+        //Act
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+        //Assert
+        _salaryStorageContract.Verify(x => x.AddElement(It.IsAny<SalaryDataModel>()), Times.Exactly(list.Count));
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_WithoutSalesByEmployee_Test()
+    {
+        //Arrange
+        var rate = 2000.0;
+        var employeeId = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = rate }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        var sum = 0.0;
+        _salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+            .Callback((SalaryDataModel x) =>
+            {
+                sum = x.Salary;
+            });
+        //Act
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+        //Assert
+        Assert.That(sum, Is.EqualTo(rate));
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_SaleStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 100 }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_PostStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_EmployeeStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 100 }));
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_SaleStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Throws(new StorageException(new InvalidOperationException()));
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 100 }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_PostStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Throws(new StorageException(new InvalidOperationException()));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_EmployeeStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 100 }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+    }
+    [Test]
+    public void CalculateSalaryByMountht_WithTravelAgentPostConfiguration_CalculateSalary_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        var rate = 2000.0;
+        var percent = 0.1;
+        var bonus = 0.5;
+        var sales = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5000, 12)])
+        };
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns(sales);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new TravelAgentPostConfiguration() { Rate = rate, SalePercent = percent, BonusForExtraSales = bonus }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        var sum = 0.0;
+        var expectedSum = rate + percent * (sales.Sum(x => x.Sum) / sales.Count) + sales.Where(x => x.Sum > _salaryConfigurationTest.ExtraSaleSum).Sum(x => x.Sum) * bonus;
+        _salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+            .Callback((SalaryDataModel x) =>
+            {
+                sum = x.Salary;
+            });
+        //Act
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+        //Assert
+        Assert.That(sum, Is.EqualTo(expectedSum));
+    }
+
+    [Test]
+    public void CalculateSalaryByMountht_WithChiefPostConfiguration_CalculateSalary_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        var rate = 2000.0;
+        var trend = 3;
+        var bonus = 100;
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new ChiefPostConfiguration() { Rate = rate, PersonalCountTrendPremium = bonus }));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        _employeeStorageContract.Setup(x => x.GetEmployeeTrend(It.IsAny<DateTime>(), It.IsAny<DateTime>()))
+            .Returns(trend);
+        var sum = 0.0;
+        var expectedSum = rate + trend * bonus;
+        _salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+            .Callback((SalaryDataModel x) =>
+            {
+                sum = x.Salary;
+            });
+        //Act
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+        //Assert
+        Assert.That(sum, Is.EqualTo(expectedSum));
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/SaleBusinessLogicContractTests.cs

@@ -0,0 +1,505 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class SaleBusinessLogicContractTests
+{
+    private SaleBusinessLogicContract _saleBusinessLogicContract;
+    private Mock<ISaleStorageContract> _saleStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _saleStorageContract = new Mock<ISaleStorageContract>();
+        _saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _saleStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllSalesByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+        };
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByPeriod(date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var employeeId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+        };
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(employeeId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), employeeId, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_EmployeeIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_EmployeeIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod("employeeId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByEmployeeByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByEmployeeByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var clientId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+        };
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByClientByPeriod(clientId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, clientId, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByClientByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_ClientIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_ClientIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod("clientId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByClientByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByClientByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var cocktailId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+        };
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByTourByPeriod(cocktailId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, null, cocktailId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _saleBusinessLogicContract.GetAllSalesByTourByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_TourIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_TourIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod("TourId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByTourByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByTourByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSaleByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new SaleDataModel(id, Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]);
+        _saleStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _saleBusinessLogicContract.GetSaleByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSaleByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetSaleByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetSaleByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetSaleByData_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetSaleByData("saleId"), Throws.TypeOf<ValidationException>());
+        _saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetSaleByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetSaleByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSaleByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetSaleByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSale_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.None,
+            false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]);
+        _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>()))
+            .Callback((SaleDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.EmployeeId == record.EmployeeId && x.ClientId == record.ClientId &&
+                    x.SaleDate == record.SaleDate && x.Sum == record.Sum && x.DiscountType == record.DiscountType &&
+                    x.Discount == record.Discount && x.IsCancel == record.IsCancel && x.Tours.Count == record.Tours.Count &&
+                    x.Tours.First().TourId == record.Tours.First().TourId &&
+                    x.Tours.First().SaleId == record.Tours.First().SaleId &&
+                    x.Tours.First().Count == record.Tours.First().Count;
+            });
+        //Act
+        _saleBusinessLogicContract.InsertSale(record);
+        //Assert
+        _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertSale_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<ElementExistsException>());
+        _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSale_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(null), Throws.TypeOf<ArgumentNullException>());
+        _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertSale_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.None, false, [])), Throws.TypeOf<ValidationException>());
+        _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertSale_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleTourDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void CancelSale_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _saleStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _saleBusinessLogicContract.CancelSale(id);
+        //Assert
+        _saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void CancelSale_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _saleStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.CancelSale(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void CancelSale_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.CancelSale(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.CancelSale(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void CancelSale_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.CancelSale("id"), Throws.TypeOf<ValidationException>());
+        _saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void CancelSale_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _saleStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.CancelSale(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/BusinessLogicContractsTests/TourBusinessLogicContractTests.cs

@@ -0,0 +1,413 @@
+using MagicCarpetBusinessLogic.Implementations;
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class TourBusinessLogicContractTests
+{
+    private TourBusinessLogicContract _tourBusinessLogicContract;
+    private Mock<ITourStorageContract> _tourStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _tourStorageContract = new Mock<ITourStorageContract>();
+        _tourBusinessLogicContract = new TourBusinessLogicContract(_tourStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _tourStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllTours_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<TourDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "name 1", "country1", 15.5, TourType.Ski),
+            new(Guid.NewGuid().ToString(), "name 2", "country2", 10.1, TourType.Sightseeing),
+            new(Guid.NewGuid().ToString(), "name 3", "country3", 13.9, TourType.Beach),
+        };
+        _tourStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        //Act
+        var list = _tourBusinessLogicContract.GetAllTours();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+
+    [Test]
+    public void GetAllTours_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.GetList()).Returns([]);
+        //Act
+        var list = _tourBusinessLogicContract.GetAllTours();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _tourStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllTours_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetAllTours(), Throws.TypeOf<NullListException>());
+        _tourStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllTours_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetAllTours(), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetTourHistoryByTour_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var tourId = Guid.NewGuid().ToString();
+        var listOriginal = new List<TourHistoryDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), 10),
+            new(Guid.NewGuid().ToString(), 15),
+            new(Guid.NewGuid().ToString(), 12),
+        };
+        _tourStorageContract.Setup(x => x.GetHistoryByTourId(It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _tourBusinessLogicContract.GetTourHistoryByTour(tourId);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _tourStorageContract.Verify(x => x.GetHistoryByTourId(tourId), Times.Once);
+    }
+
+    [Test]
+    public void GetTourHistoryByTour_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.GetHistoryByTourId(It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _tourBusinessLogicContract.GetTourHistoryByTour(Guid.NewGuid().ToString());
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourHistoryByTour_TourIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetTourHistoryByTour_TourIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour("tourId"), Throws.TypeOf<ValidationException>());
+        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetTourHistoryByTour_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourHistoryByTour_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.GetHistoryByTourId(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourHistoryByTour(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.GetHistoryByTourId(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new TourDataModel(id, "name","country", 10, TourType.Ski);
+        _tourStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _tourBusinessLogicContract.GetTourByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _tourStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourByData_GetByName_ReturnRecord_Test()
+    {
+        //Arrange
+        var name = "name";
+        var record = new TourDataModel(Guid.NewGuid().ToString(), name, "country", 10, TourType.Ski);
+        _tourStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
+        //Act
+        var element = _tourBusinessLogicContract.GetTourByData(name);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.TourName, Is.EqualTo(name));
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetTourByData_GetByCountry_ReturnRecord_Test()
+    {
+        //Arrange
+        var country = "country";
+        var record = new TourDataModel(Guid.NewGuid().ToString(), "name", country, 10, TourType.Ski);
+        _tourStorageContract.Setup(x => x.GetElementByName(country)).Returns(record);
+        //Act
+        var element = _tourBusinessLogicContract.GetTourByData(country);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.TourCountry, Is.EqualTo(country));
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetTourByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _tourStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourByData_GetByName_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData("name"), Throws.TypeOf<ElementNotFoundException>());
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetTourByData_GetByCountry_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData("country"), Throws.TypeOf<ElementNotFoundException>());
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetTourByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _tourStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _tourBusinessLogicContract.GetTourByData("name"), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _tourStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertTour_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new TourDataModel(Guid.NewGuid().ToString(), "name","country",10, TourType.Ski);
+        _tourStorageContract.Setup(x => x.AddElement(It.IsAny<TourDataModel>()))
+            .Callback((TourDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.TourName == record.TourName && x.TourCountry == record.TourCountry 
+                    && x.Price == record.Price && x.TourType == record.TourType;
+            });
+        //Act
+        _tourBusinessLogicContract.InsertTour(record);
+        //Assert
+        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertTour_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.AddElement(It.IsAny<TourDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.InsertTour(new(Guid.NewGuid().ToString(), "name","country",10, TourType.Ski)), Throws.TypeOf<ElementExistsException>());
+        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertTour_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.InsertTour(null), Throws.TypeOf<ArgumentNullException>());
+        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertTour_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.InsertTour(new TourDataModel("id", "name", "country", 10, TourType.Ski)), Throws.TypeOf<ValidationException>());
+        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertTour_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.AddElement(It.IsAny<TourDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.InsertTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.AddElement(It.IsAny<TourDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateTour_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new TourDataModel(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski);
+        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>()))
+            .Callback((TourDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.TourName == record.TourName && x.TourCountry == record.TourCountry
+                    && x.Price == record.Price && x.TourType == record.TourType;
+            });
+        //Act
+        _tourBusinessLogicContract.UpdateTour(record);
+        //Assert
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateTour_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf<ElementNotFoundException>());
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateTour_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf<ElementExistsException>());
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateTour_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.UpdateTour(null), Throws.TypeOf<ArgumentNullException>());
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateTour_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new TourDataModel("id", "name", "country", 10, TourType.Ski)), Throws.TypeOf<ValidationException>());
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateTour_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.UpdElement(It.IsAny<TourDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.UpdateTour(new(Guid.NewGuid().ToString(), "name", "country", 10, TourType.Ski)), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.UpdElement(It.IsAny<TourDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteTour_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _tourStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _tourBusinessLogicContract.DeleteTour(id);
+        //Assert
+        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteTour_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _tourStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.DeleteTour(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteTour_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.DeleteTour(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _tourBusinessLogicContract.DeleteTour(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteTour_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.DeleteTour("id"), Throws.TypeOf<ValidationException>());
+        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteTour_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _tourStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _tourBusinessLogicContract.DeleteTour(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _tourStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

MagicCarpetProject/MagicCarpetTests/DataModelTests/PostDataModelTests.cs

@@ -1,6 +1,7 @@
 using MagicCarpetContracts.DataModels;
 using MagicCarpetContracts.Enums;
 using MagicCarpetContracts.Exceptions;
+using MagicCarpetContracts.Infrastructure.PostConfigurations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -14,57 +15,48 @@ internal class PostDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var post = CreateDataModel(null, Guid.NewGuid().ToString(), "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel(null, "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        post = CreateDataModel(string.Empty, "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var post = CreateDataModel("id", Guid.NewGuid().ToString(), "name", PostType.Manager, 10, true, DateTime.UtcNow);
-        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-    }
-
-    [Test]
-    public void PostIdIsNullEmptyTest()
-    {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), null, "name", PostType.Manager, 10, true, DateTime.UtcNow);
-        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "name", PostType.Manager, 10, true, DateTime.UtcNow);
-        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-    }
-
-    [Test]
-    public void PostIdIsNotGuidTest()
-    {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), "postId", "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel("id", "name", PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void PostNameIsEmptyTest()
     {
-        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, PostType.Manager, 10, true, DateTime.UtcNow);
+        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null, PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
         Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
-        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, PostType.Manager, 10, true, DateTime.UtcNow);
+        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, PostType.TravelAgent, new PostConfiguration() { Rate = 10 });
         Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void PostTypeIsNoneTest()
     {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.None, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.None, new PostConfiguration() { Rate = 10 });
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
-    public void SalaryIsLessOrZeroTest()
+    public void ConfigurationModelIsNullTest()
     {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.Manager, 0, true, DateTime.UtcNow);
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, null);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.Manager, -10, true, DateTime.UtcNow);
+    }
+
+    [Test]
+    public void RateIsLessOrZeroTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = 0 });
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.TravelAgent, new PostConfiguration() { Rate = -10 });
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
@@ -72,26 +64,20 @@ internal class PostDataModelTests
     public void AllFieldsIsCorrectTest()
     {
         var postId = Guid.NewGuid().ToString();
-        var postPostId = Guid.NewGuid().ToString();
         var postName = "name";
         var postType = PostType.Manager;
-        var salary = 10;
-        var isActual = false;
-        var changeDate = DateTime.UtcNow.AddDays(-1);
-        var post = CreateDataModel(postId, postPostId, postName, postType, salary, isActual, changeDate);
+        var configuration = new PostConfiguration() { Rate = 10 };
+        var post = CreateDataModel(postId, postName, postType, configuration);
         Assert.That(() => post.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
             Assert.That(post.Id, Is.EqualTo(postId));
-            Assert.That(post.PostId, Is.EqualTo(postPostId));
             Assert.That(post.PostName, Is.EqualTo(postName));
             Assert.That(post.PostType, Is.EqualTo(postType));
-            Assert.That(post.Salary, Is.EqualTo(salary));
-            Assert.That(post.IsActual, Is.EqualTo(isActual));
-            Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
+            Assert.That(post.ConfigurationModel.Rate, Is.EqualTo(configuration.Rate));
         });
     }
 
-    private static PostDataModel CreateDataModel(string? id, string? postId, string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
-        new(id, postId, postName, postType, salary, isActual, changeDate);
+    private static PostDataModel CreateDataModel(string? id, string? postName, PostType postType, PostConfiguration configuration) =>
+        new(id, postName, postType, configuration);
 }

MagicCarpetProject/MagicCarpetTests/DataModelTests/SaleDataModelTests.cs

@@ -15,89 +15,120 @@ internal class SaleDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
     [Test]
     public void EmployeeIdIsNullOrEmptyTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void EmployeeIdIsNotGuidTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void ClientIdIsNotGuidTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "clientId", 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
-        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-    }
-
-    [Test]
-    public void SumIsLessOrZeroTest()
-    {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, DiscountType.OnSale, 10, false, CreateSubDataModel());
-        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "clientId", DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void ToursIsNullOrEmptyTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, null);
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, null);
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, []);
+        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, []);
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
+    [Test]
+    public void CalcSumAndDiscountTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var employeeId = Guid.NewGuid().ToString();
+        var clientId = Guid.NewGuid().ToString();
+        var tours = new List<SaleTourDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 2, 1.1),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 1.3)
+        };
+        var isCancel = false;
+        var totalSum = tours.Sum(x => x.Price * x.Count);
+        var saleNone = CreateDataModel(saleId, employeeId, clientId, DiscountType.None, isCancel, tours);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleNone.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleNone.Discount, Is.EqualTo(0));
+        });
+        var saleOnSale = CreateDataModel(saleId, employeeId, clientId, DiscountType.OnSale, isCancel, tours);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleOnSale.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleOnSale.Discount, Is.EqualTo(totalSum * 0.1));
+        });
+        var saleRegularCustomer = CreateDataModel(saleId, employeeId, clientId, DiscountType.RegularCustomer, isCancel, tours);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleRegularCustomer.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleRegularCustomer.Discount, Is.EqualTo(totalSum * 0.5));
+        });
+        var saleCertificate = CreateDataModel(saleId, employeeId, clientId, DiscountType.Certificate, isCancel, tours);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleCertificate.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleCertificate.Discount, Is.EqualTo(totalSum * 0.3));
+        });
+        var saleMulty = CreateDataModel(saleId, employeeId, clientId, DiscountType.Certificate | DiscountType.RegularCustomer, isCancel, tours);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleMulty.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleMulty.Discount, Is.EqualTo(totalSum * 0.8));
+        });
+    }
+
     [Test]
     public void AllFieldsIsCorrectTest()
     {
         var saleId = Guid.NewGuid().ToString();
         var employeeId = Guid.NewGuid().ToString();
         var clientId = Guid.NewGuid().ToString();
-        var sum = 10;
         var discountType = DiscountType.Certificate;
-        var discount = 1;
         var isCancel = true;
         var tours = CreateSubDataModel();
-        var sale = CreateDataModel(saleId, employeeId, clientId, sum, discountType, discount, isCancel, tours);
+        var sale = CreateDataModel(saleId, employeeId, clientId, discountType, isCancel, tours);
         Assert.That(() => sale.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
             Assert.That(sale.Id, Is.EqualTo(saleId));
             Assert.That(sale.EmployeeId, Is.EqualTo(employeeId));
             Assert.That(sale.ClientId, Is.EqualTo(clientId));
-            Assert.That(sale.Sum, Is.EqualTo(sum));
             Assert.That(sale.DiscountType, Is.EqualTo(discountType));
-            Assert.That(sale.Discount, Is.EqualTo(discount));
             Assert.That(sale.IsCancel, Is.EqualTo(isCancel));
             Assert.That(sale.Tours, Is.EquivalentTo(tours));
         });
     }
 
-    private static SaleDataModel CreateDataModel(string? id, string? employeeId, string? clientId, double sum, DiscountType discountType, 
-        double discount, bool isCancel, List<SaleTourDataModel>? tours) =>
-        new(id, employeeId, clientId, sum, discountType, discount, isCancel, tours);
+    private static SaleDataModel CreateDataModel(string? id, string? employeeId, string? clientId, DiscountType discountType, bool isCancel, List<SaleTourDataModel>? tours) =>
+        new(id, employeeId, clientId, discountType, isCancel, tours);
 
     private static List<SaleTourDataModel> CreateSubDataModel()
-        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 1.1)];
 }

MagicCarpetProject/MagicCarpetTests/DataModelTests/SaleTourDataModelTests.cs

@@ -14,41 +14,50 @@ internal class SaleTourDataModelTests
     [Test]
     public void SaleIdIsNullOrEmptyTest()
     {
-        var saleTour = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+        var saleTour = CreateDataModel(null, Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
-        saleTour = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        saleTour = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void SaleIdIsNotGuidTest()
     {
-        var saleTour = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10);
+        var saleTour = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
-    public void CocktailIdIsNullOrEmptyTest()
+    public void TourIdIsNullOrEmptyTest()
     {
-        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), null, 10, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
-        saleTour = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        saleTour = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
-    public void ProductIdIsNotGuidTest()
+    public void TourIdIsNotGuidTest()
     {
-        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10);
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), "tourId", 10, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void CountIsLessOrZeroTest()
     {
-        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, 1.1);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
-        saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+        saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, 1.1);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PriceIsLessOrZeroTest()
+    {
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 0);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+        saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, -10);
         Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
     }
 
@@ -58,16 +67,18 @@ internal class SaleTourDataModelTests
         var saleId = Guid.NewGuid().ToString();
         var tourId = Guid.NewGuid().ToString();
         var count = 10;
-        var saleCocktail = CreateDataModel(saleId, tourId, count);
-        Assert.That(() => saleCocktail.Validate(), Throws.Nothing);
+        var price = 1.2;
+        var saleTour = CreateDataModel(saleId, tourId, count, price);
+        Assert.That(() => saleTour.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
-            Assert.That(saleCocktail.SaleId, Is.EqualTo(saleId));
-            Assert.That(saleCocktail.TourId, Is.EqualTo(tourId));
-            Assert.That(saleCocktail.Count, Is.EqualTo(count));
+            Assert.That(saleTour.SaleId, Is.EqualTo(saleId));
+            Assert.That(saleTour.TourId, Is.EqualTo(tourId));
+            Assert.That(saleTour.Count, Is.EqualTo(count));
+            Assert.That(saleTour.Price, Is.EqualTo(price));
         });
     }
 
-    private static SaleTourDataModel CreateDataModel(string? saleId, string? tourId, int count) =>
-        new(saleId, tourId, count);
+    private static SaleTourDataModel CreateDataModel(string? saleId, string? tourId, int count, double price) =>
+        new(saleId, tourId, count, price);
 }

MagicCarpetProject/MagicCarpetTests/DataModelTests/TourDataModelTests.cs

@@ -75,7 +75,7 @@ internal class TourDataModelTests
             Assert.That(tour.TourName, Is.EqualTo(tourName));
             Assert.That(tour.TourCountry, Is.EqualTo(tourCountry));
             Assert.That(tour.Price, Is.EqualTo(price));
-            Assert.That(tour.Type, Is.EqualTo(tourType));
+            Assert.That(tour.TourType, Is.EqualTo(tourType));
         });
     }