4 Лабораторная работа

AndDietCokeProject/AndDietCokeBuisnessLogic/AndDietCokeBuisnessLogic.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>preview</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="EntityFramework" Version="6.5.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.4" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.4" />
+    <PackageReference Include="Npgsql" Version="9.0.3" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AndDietCokeProject\AndDietCokeContracts.csproj" />
+  </ItemGroup>
+
+	<ItemGroup>
+		<InternalsVisibleTo Include="AndDietCokeTests" />
+		<InternalsVisibleTo Include="AndDietCokeWebApi" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
+</Project>

AndDietCokeProject/AndDietCokeBuisnessLogic/Implementations/BuyerBusinessLogicContract.cs

@@ -0,0 +1,76 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.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 AndDietCokeBuisnessLogic.Implementations;
+
+internal class BuyerBusinessLogicContract(IBuyerStorageContract buyerStorageContract, ILogger logger) : IBuyerBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IBuyerStorageContract _buyerStorageContract = buyerStorageContract;
+
+    public List<BuyerDataModel> GetAllBuyers()
+    {
+        _logger.LogInformation("GetAllBuyers");
+        return _buyerStorageContract.GetList() ?? throw new NullListException();
+    }
+
+    public BuyerDataModel GetBuyerByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _buyerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        if (Regex.IsMatch(data, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+        {
+            return _buyerStorageContract.GetElementByPhoneNumber(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _buyerStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertBuyer(BuyerDataModel buyerDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(buyerDataModel));
+        ArgumentNullException.ThrowIfNull(buyerDataModel);
+        buyerDataModel.Validate();
+        _buyerStorageContract.AddElement(buyerDataModel);
+    }
+
+    public void UpdateBuyer(BuyerDataModel buyerDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(buyerDataModel));
+        ArgumentNullException.ThrowIfNull(buyerDataModel);
+        buyerDataModel.Validate();
+        _buyerStorageContract.UpdElement(buyerDataModel);
+    }
+
+    public void DeleteBuyer(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");
+        }
+        _buyerStorageContract.DelElement(id);
+    }
+}
+

AndDietCokeProject/AndDietCokeBuisnessLogic/Implementations/DishBusinessLogicContract.cs

@@ -0,0 +1,80 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Enums;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.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 AndDietCokeBuisnessLogic.Implementations;
+
+internal class DishBusinessLogicContract(IDishStorageContract dishStorageContract, ILogger logger) : IDishBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IDishStorageContract _dishStorageContract = dishStorageContract;
+    public List<DishDataModel> GetAllDishes(bool onlyActive)
+    {
+        _logger.LogInformation("GetAllDishes params: {onlyActive}", onlyActive);
+        return _dishStorageContract.GetList(onlyActive) ?? throw new NullListException();
+    }
+    public List<DishHistoryDataModel> GetDishHistoryByDish(string dishId)
+    {
+        _logger.LogInformation("GetDishHistoryByDish for {dishId}", dishId);
+        if (dishId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(dishId));
+        }
+        if (!dishId.IsGuid())
+        {
+            throw new ValidationException("The value in the field dishId is not a unique identifier.");
+        }
+        return _dishStorageContract.GetHistoryByDishId(dishId) ?? throw new NullListException();
+    }
+    public DishDataModel GetDishByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _dishStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _dishStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
+    }
+    public void InsertDish(DishDataModel dishDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(dishDataModel));
+        ArgumentNullException.ThrowIfNull(dishDataModel);
+        dishDataModel.Validate();
+        _dishStorageContract.AddElement(dishDataModel);
+    }
+    public void UpdateDish(DishDataModel dishDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(dishDataModel));
+        ArgumentNullException.ThrowIfNull(dishDataModel);
+        dishDataModel.Validate();
+        _dishStorageContract.UpdElement(dishDataModel);
+    }
+    public void DeleteDish(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");
+        }
+        _dishStorageContract.DelElement(id);
+    }
+}
+

AndDietCokeProject/AndDietCokeBuisnessLogic/Implementations/PostBusinessLogicContract.cs

@@ -0,0 +1,99 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Enums;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.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 AndDietCokeBuisnessLogic.Implementations;
+
+public class PostBusinessLogicContract(IPostStorageContract postStorageContract, ILogger logger) : IPostBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+
+    public List<PostDataModel> GetAllPosts(bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllPosts params: {onlyActive}", onlyActive);
+        return _postStorageContract.GetList(onlyActive) ?? 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);
+    }
+}

AndDietCokeProject/AndDietCokeBuisnessLogic/Implementations/SalaryBusinessLogicContract.cs

@@ -0,0 +1,68 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static AndDietCokeBuisnessLogic.Implementations.SalaryBusinessLogicContract;
+
+namespace AndDietCokeBuisnessLogic.Implementations;
+
+internal class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,
+    ISaleStorageContract saleStorageContract, IPostStorageContract postStorageContract, IWorkerStorageContract workerStorageContract, ILogger logger) : ISalaryBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly ISalaryStorageContract _salaryStorageContract = salaryStorageContract;
+    private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+    private readonly IWorkerStorageContract _workerStorageContract = workerStorageContract;
+
+    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> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId)
+    {
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (workerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(workerId));
+        }
+        if (!workerId.IsGuid())
+        {
+            throw new ValidationException("The value in the field workerId is not a unique identifier.");
+        }
+        _logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}, {workerId}", fromDate, toDate, workerId);
+        return _salaryStorageContract.GetList(fromDate, toDate, workerId) ?? 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 workers = _workerStorageContract.GetList() ?? throw new NullListException();
+        foreach (var worker in workers)
+        {
+            var sales = _saleStorageContract.GetList(startDate, finishDate, workerId: worker.Id)?.Sum(x => x.Dishes!.Count) ??
+                throw new NullListException();
+            var salary = 100 + sales * 0.1;
+            _logger.LogDebug("The employee {workerId} was paid a salary of {salary}", worker.Id, salary);
+            _salaryStorageContract.AddElement(new SalaryDataModel(Guid.NewGuid().ToString(), worker.Id, finishDate, salary));
+        }
+    }
+
+}

AndDietCokeProject/AndDietCokeBuisnessLogic/Implementations/SaleBusinessLogicContract.cs

@@ -0,0 +1,120 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.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 AndDietCokeBuisnessLogic.Implementations;
+
+internal 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> GetAllSalesByWorkerByPeriod(string workerId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {workerId}, {fromDate}, {toDate}", workerId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (workerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(workerId));
+        }
+        if (!workerId.IsGuid())
+        {
+            throw new ValidationException("The value in the field workerId is not a unique identifier.");
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, workerId: workerId) ?? throw new NullListException();
+    }
+
+    public List<SaleDataModel> GetAllSalesByBuyerByPeriod(string buyerId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {buyerId}, {fromDate}, {toDate}", buyerId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (buyerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(buyerId));
+        }
+        if (!buyerId.IsGuid())
+        {
+            throw new ValidationException("The value in the field buyerId is not a unique identifier.");
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, buyerId: buyerId) ?? throw new NullListException();
+    }
+
+    public List<SaleDataModel> GetAllSalesByDishByPeriod(string dishId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {dishId}, {fromDate}, {toDate}", dishId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (dishId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(dishId));
+        }
+        if (!dishId.IsGuid())
+        {
+            throw new ValidationException("The value in the field dishId is not a unique identifier.");
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, dishId: dishId) ?? 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);
+    }
+}

AndDietCokeProject/AndDietCokeBuisnessLogic/Implementations/WorkerBusinessLogicContract.cs

@@ -0,0 +1,104 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.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 AndDietCokeBuisnessLogic.Implementations;
+
+internal class WorkerBusinessLogicContract(IWorkerStorageContract workerStorageContract, ILogger logger) : IWorkerBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IWorkerStorageContract _workerStorageContract = workerStorageContract;
+
+    public List<WorkerDataModel> GetAllWorkers(bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {onlyActive}", onlyActive);
+        return _workerStorageContract.GetList(onlyActive) ?? throw new NullListException();
+    }
+
+    public List<WorkerDataModel> GetAllWorkersByPost(string postId, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers 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 _workerStorageContract.GetList(onlyActive, postId) ?? throw new NullListException();
+    }
+
+    public List<WorkerDataModel> GetAllWorkersByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _workerStorageContract.GetList(onlyActive, fromBirthDate: fromDate, toBirthDate: toDate) ?? throw new NullListException();
+    }
+
+    public List<WorkerDataModel> GetAllWorkersByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _workerStorageContract.GetList(onlyActive, fromEmploymentDate: fromDate, toEmploymentDate: toDate) ?? throw new NullListException();
+    }
+
+    public WorkerDataModel GetWorkerByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _workerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _workerStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertWorker(WorkerDataModel workerDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(workerDataModel));
+        ArgumentNullException.ThrowIfNull(workerDataModel);
+        workerDataModel.Validate();
+        _workerStorageContract.AddElement(workerDataModel);
+    }
+
+    public void UpdateWorker(WorkerDataModel workerDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(workerDataModel));
+        ArgumentNullException.ThrowIfNull(workerDataModel);
+        workerDataModel.Validate();
+        _workerStorageContract.UpdElement(workerDataModel);
+    }
+
+    public void DeleteWorker(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");
+        }
+        _workerStorageContract.DelElement(id);
+    }
+}

AndDietCokeProject/AndDietCokeContracts/AndDietCokeContracts.csproj

@@ -1,9 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-</Project>

AndDietCokeProject/AndDietCokeContracts/DataModels/DishDataModel.cs

@@ -1,45 +0,0 @@
-using AndDietCokeContracts.Enums;
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
-namespace AndDietCokeContracts.DataModels;
-
-public class DishDataModel(string id, string name, DishType dishType, double price, string orderid) : IValidation
-{
-    public string Id { get; private set; } = id;
-
-    public string Name { get; private set; } = name;
-
-    public DishType DishType { get; private set; } = dishType;
-
-    public double Price { get; private set; } = price;
-
-    public string OrderId { get; private set; } = orderid;
-
-
-
-    public void Validate()
-    {
-        if (Id.IsEmpty())
-            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 (Name.IsEmpty())
-            throw new ValidationException("Field Name is empty");
-
-        if (Price <= 0)
-            throw new ValidationException("Field Price is less than or equal to 0");
-
-        if (DishType == DishType.None)
-            throw new ValidationException("Field DishType is empty");
-
-        if (OrderId.IsEmpty())
-            throw new ValidationException("Field OrderId is empty");
-        if (!OrderId.IsGuid())
-            throw new ValidationException("The value in the field OrderId is not a unique identifier");
-
-
-    }
-}

AndDietCokeProject/AndDietCokeContracts/DataModels/Dish_OrderDataModel.cs

@@ -1,39 +0,0 @@
-using AndDietCokeContracts.Enums;
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Xml.Linq;
-
-namespace AndDietCokeContracts.DataModels;
-public class Dish_OrderDataModel(string orderid, string dishid, int count)
-{
-public string OrderId { get; private set; } = orderid;
-public string DishId { get; private set; } = dishid;
-public int Count { get; private set; } = count;
-
-
-
-
-
-public void Validate()
-{
-    
-
-    if (OrderId.IsEmpty())
-        throw new ValidationException("Field OrderId is empty");
-    if (!OrderId.IsGuid())
-        throw new ValidationException("The value in the field OrderId is not a unique identifier");
-    if (DishId.IsEmpty())
-        throw new ValidationException("Field DishId is empty");
-    if (!DishId.IsGuid())
-        throw new ValidationException("The value in the field DishId is not a unique identifier");
-    if (Count <= 0)
-        throw new ValidationException("Field Count is less than or equal to 0"); 
-
-    }
-}

AndDietCokeProject/AndDietCokeContracts/DataModels/OrderDataModels.cs

@@ -1,31 +0,0 @@
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
-namespace AndDietCokeContracts.DataModels;
-
-public class OrderDataModels(string id, string clientid, string employeedid, List<Dish_OrderDataModel> dishes) : IValidation
-{
-public string Id { get; private set; } = id;
-public string ClientId { get; private set; } = clientid;
-public string EmloyeedId { get; private set; } = employeedid;
-public List<Dish_OrderDataModel> Dishes { get; private set; } = dishes;
-    public void Validate()
-{
-    if (Id.IsEmpty())
-        throw new ValidationException("Field SaleId is empty");
-    if (!Id.IsGuid())
-        throw new ValidationException("The value in the field SaleId is not a unique identifier");
-    if (ClientId.IsEmpty())
-        throw new ValidationException("Field ClientId is empty");
-    if (!ClientId.IsGuid())
-        throw new ValidationException("The value in the field ClientId is not a unique identifier");
-    if (EmloyeedId.IsEmpty())
-        throw new ValidationException("Field ClientId is empty");
-    if (!EmloyeedId.IsGuid())
-        throw new ValidationException("The value in the field ClientId is not a unique identifier");
-    if ((Dishes?.Count ?? 0) == 0)
-        throw new ValidationException("The sale must include dishes"); 
-
-    }
-
-}

AndDietCokeProject/AndDietCokeContracts/DataModels/PositionDataModel.cs

@@ -1,36 +0,0 @@
-using AndDietCokeContracts.Enums;
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
-using System.Text.RegularExpressions;
-using System.Xml;
-namespace AndDietCokeContracts.DataModels;
-
-public class PositionDataModell(string id, string positionId, string positionName, PositionType positionType, double salary, bool isActual, DateTime changeDate) : IValidation
-{
-    public string Id { get; private set; } = id;
-    public string PositionId { get; private set; } = positionId;
-    public string PositionName { get; private set; } = positionName;
-    public PositionType PositionType { get; private set; } = positionType;
-    public double Salary { get; private set; } = salary;
-    public bool IsActual { get; private set; } = isActual;
-    public DateTime ChangeDate { get; private set; } = changeDate;
-    public void Validate()
-    {
-        if (Id.IsEmpty())
-            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 (PositionId.IsEmpty())
-            throw new ValidationException("Field PostId is empty");
-        if (!PositionId.IsGuid())
-            throw new ValidationException("The value in the field PostId is not a unique identifier");
-        if (PositionName.IsEmpty())
-            throw new ValidationException("Field PostName is empty");
-        if (PositionType == PositionType.None)
-            throw new ValidationException("Field PostType is empty");
-        if (Salary <= 0)
-            throw new ValidationException("Field Salary is empty");
-    }
-}
-

AndDietCokeProject/AndDietCokeContracts/DataModels/SalaryDataModel.cs

@@ -1,28 +0,0 @@
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
-
-namespace AndDietCokeContracts.DataModels;
-
-public class SalaryDataModel(string id, DateTime salaryDate, double salary, string employeedid) : IValidation
-{
-    public string Id { get; private set; } = id;
-    public DateTime SalaryDate { get; private set; } = salaryDate;
-    public double Salary { get; private set; } = salary;
-    public string EmloyeedId { get; private set; } = employeedid;
-
-    public void Validate()
-    {
-        if (Id.IsEmpty())
-            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 (Salary <= 0)
-            throw new ValidationException("Field Salary is less than or equal to 0");
-        if (EmloyeedId.IsEmpty())
-            throw new ValidationException("Field ClientId is empty");
-        if (!EmloyeedId.IsGuid())
-            throw new ValidationException("The value in the field ClientId is not a unique identifier");
-
-    }
-}

AndDietCokeProject/AndDietCokeContracts/DataModels/СlientDataModel.cs

@@ -1,33 +0,0 @@
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
-using System.Text.RegularExpressions;
-
-
-namespace AndDietCokeContracts.DataModels;
-
-public class СlientDataModel(string id, string fio, string contact, double discountsize) : IValidation
-{
-    public string Id { get; private set; } = id;
-    public string FIO { get; private set; } = fio;
-    public string Contact { get; private set; } = contact;
-    public double DiscountSize { get; private set; } = discountsize;
-
-    public void Validate()
-    {
-        if (Id.IsEmpty())
-            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 (FIO.IsEmpty())
-            throw new ValidationException("Field FIO is empty");
-
-        if (Contact.IsEmpty())
-            throw new ValidationException("Field PhoneNumber is empty");
-
-        if (!Regex.IsMatch(Contact , @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\-]?)?[\d\- ]{7,10}$"))
-            throw new ValidationException("Field PhoneNumber is not a phone number");
-    }
-}

AndDietCokeProject/AndDietCokeContracts/Enums/DiscountType.cs

@@ -1,11 +0,0 @@
-namespace AndDietCokeContracts.Enums;
-
-[Flags]
-
-public enum DiscountType
-    {
-    None = 0,
-    OnSale = 1,
-    RegularCustumer = 2, 
-    Certificate = 4
-    }

AndDietCokeProject/AndDietCokeDatabase/AndDietCokeDatabase.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>preview</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="EntityFramework" Version="6.5.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.4" />
+    <PackageReference Include="Npgsql" Version="9.0.3" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AndDietCokeProject\AndDietCokeContracts.csproj" />
+  </ItemGroup>
+
+	<ItemGroup>
+		<InternalsVisibleTo Include="AndDietCokeTests" />
+		<InternalsVisibleTo Include="AndDietCokeWebApi" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
+</Project>

AndDietCokeProject/AndDietCokeDatabase/AndDietCokeDbContext.cs

@@ -0,0 +1,63 @@
+using AndDietCokeDatabase.Models;
+using AndDietCokeContracts.Infrastrusture;
+using Microsoft.EntityFrameworkCore;
+
+namespace AndDietCokeDatabase;
+
+public class AndDietCokeDbContext : DbContext
+{
+    private readonly IConfigurationDatabase? _configurationDatabase;
+    public AndDietCokeDbContext(IConfigurationDatabase configurationDatabase)
+    {
+        _configurationDatabase = configurationDatabase;
+        AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+        AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+    }
+    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<Buyer>()
+            .HasIndex(x => x.PhoneNumber).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<Dish>()
+            .HasIndex(x => new { x.DishName, x.IsDeleted })
+            .IsUnique()
+            .HasFilter($"\"{nameof(Dish.IsDeleted)}\" = FALSE");
+
+        modelBuilder.Entity<OrderDish>()
+            .HasKey(x => new { x.OrderId, x.DishId });
+    }
+
+    public DbSet<Buyer> Buyers { get; set; }
+
+    public DbSet<Post> Posts { get; set; }
+
+    public DbSet<Dish> Dishes { get; set; }
+
+    public DbSet<DishHistory> DishHistories { get; set; }
+
+    public DbSet<Salary> Salaries { get; set; }
+
+    public DbSet<Sale> Sales { get; set; }
+
+    public DbSet<OrderDish> OrderDishes { get; set; }
+
+    public DbSet<Worker> Workers { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Implementations/BuyerStorageContract.cs

@@ -0,0 +1,153 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeDatabase.Models;
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Implementations;
+
+internal class BuyerStorageContract : IBuyerStorageContract
+{
+    private readonly AndDietCokeDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public BuyerStorageContract(AndDietCokeDbContext andDietCokeDbContext)
+    {
+        _dbContext = andDietCokeDbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.AddMaps(typeof(AndDietCokeDbContext).Assembly);
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<BuyerDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Buyers.Select(x => _mapper.Map<BuyerDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public BuyerDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<BuyerDataModel>(GetBuyerById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public BuyerDataModel? GetElementByFIO(string fio)
+    {
+        try
+        {
+            return _mapper.Map<BuyerDataModel>(_dbContext.Buyers.FirstOrDefault(x => x.FIO == fio));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public BuyerDataModel? GetElementByPhoneNumber(string phoneNumber)
+    {
+        try
+        {
+            return _mapper.Map<BuyerDataModel>(_dbContext.Buyers.FirstOrDefault(x => x.PhoneNumber == phoneNumber));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(BuyerDataModel buyerDataModel)
+    {
+        try
+        {
+            _dbContext.Buyers.Add(_mapper.Map<Buyer>(buyerDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", buyerDataModel.Id);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Buyers_PhoneNumber" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PhoneNumber", buyerDataModel.PhoneNumber);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(BuyerDataModel buyerDataModel)
+    {
+        try
+        {
+            var element = GetBuyerById(buyerDataModel.Id) ?? throw new ElementNotFoundException(buyerDataModel.Id);
+            _dbContext.Buyers.Update(_mapper.Map(buyerDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Buyers_PhoneNumber" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PhoneNumber", buyerDataModel.PhoneNumber);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetBuyerById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Buyers.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Buyer? GetBuyerById(string id) => _dbContext.Buyers.FirstOrDefault(x => x.Id == id);
+}

AndDietCokeProject/AndDietCokeDatabase/Implementations/DishStorageContract.cs

@@ -0,0 +1,176 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeDatabase.Models;
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Implementations;
+
+internal class DishStorageContract : IDishStorageContract
+{
+    private readonly AndDietCokeDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public DishStorageContract(AndDietCokeDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Dish, DishDataModel>();
+            cfg.CreateMap<DishDataModel, Dish>()
+                .ForMember(x => x.IsDeleted, x => x.MapFrom(src => false));
+            cfg.CreateMap<DishHistory, DishHistoryDataModel>();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<DishDataModel> GetList(bool onlyActive = true)
+    {
+        try
+        {
+            var query = _dbContext.Dishes.AsQueryable();
+            if (onlyActive)
+            {
+                query = query.Where(x => !x.IsDeleted);
+            }
+            return [.. query.Select(x => _mapper.Map<DishDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public List<DishHistoryDataModel> GetHistoryByDishId(string dishId)
+    {
+        try
+        {
+            return [.. _dbContext.DishHistories.Include(x => x.Dish).Where(x => x.DishId == dishId).OrderByDescending(x => x.ChangeDate).Select(x => _mapper.Map<DishHistoryDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public DishDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<DishDataModel>(GetDishById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public DishDataModel? GetElementByName(string name)
+    {
+        try
+        {
+            return _mapper.Map<DishDataModel>(_dbContext.Dishes.FirstOrDefault(x => x.DishName == name && !x.IsDeleted));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(DishDataModel dishDataModel)
+    {
+        try
+        {
+            _dbContext.Dishes.Add(_mapper.Map<Dish>(dishDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", dishDataModel.Id);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Dishes_DishName_IsDeleted" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("DishName", dishDataModel.DishName);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(DishDataModel dishDataModel)
+    {
+        try
+        {
+            var transaction = _dbContext.Database.BeginTransaction();
+            try
+            {
+                var element = GetDishById(dishDataModel.Id) ?? throw new ElementNotFoundException(dishDataModel.Id);
+                if (element.Price != dishDataModel.Price)
+                {
+                    _dbContext.DishHistories.Add(new DishHistory() { DishId = element.Id, OldPrice = element.Price });
+                    _dbContext.SaveChanges();
+                }
+                _dbContext.Dishes.Update(_mapper.Map(dishDataModel, element));
+                _dbContext.SaveChanges();
+                transaction.Commit();
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Dishes_DishName_IsDeleted" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("DishName", dishDataModel.DishName);
+        }
+        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 = GetDishById(id) ?? throw new ElementNotFoundException(id);
+            element.IsDeleted = true;
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Dish? GetDishById(string id) => _dbContext.Dishes.FirstOrDefault(x => x.Id == id && !x.IsDeleted);
+}

AndDietCokeProject/AndDietCokeDatabase/Implementations/PostStorageContract.cs

@@ -0,0 +1,191 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeDatabase.Models;
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Implementations;
+
+internal class PostStorageContract : IPostStorageContract
+{
+    private readonly AndDietCokeDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public PostStorageContract(AndDietCokeDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Post, PostDataModel>()
+                .ForMember(x => x.Id, opt => opt.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));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<PostDataModel> GetList(bool onlyActual = true)
+    {
+        try
+        {
+            var query = _dbContext.Posts.AsQueryable();
+            return [.. query.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();
+}

AndDietCokeProject/AndDietCokeDatabase/Implementations/SalaryStorageContract.cs

@@ -0,0 +1,64 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeDatabase.Models;
+using AutoMapper;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Implementations;
+
+internal class SalaryStorageContract : ISalaryStorageContract
+{
+    private readonly AndDietCokeDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SalaryStorageContract(AndDietCokeDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Worker, WorkerDataModel>();
+            cfg.CreateMap<WorkerDataModel, Worker>();
+            cfg.CreateMap<Salary, SalaryDataModel>();
+            cfg.CreateMap<SalaryDataModel, Salary>()
+                .ForMember(dest => dest.WorkerSalary, opt => opt.MapFrom(src => src.Salary));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SalaryDataModel> GetList(DateTime startDate, DateTime endDate, string? workerId = null)
+    {
+        try
+        {
+            var query = _dbContext.Salaries.Where(x => x.SalaryDate >= startDate && x.SalaryDate <= endDate);
+            if (workerId is not null)
+            {
+                query = query.Where(x => x.WorkerId == workerId);
+            }
+            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);
+        }
+    }
+}

AndDietCokeProject/AndDietCokeDatabase/Implementations/SaleStorageContract.cs

@@ -0,0 +1,121 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeDatabase.Models;
+using AutoMapper;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+
+
+namespace AndDietCokeDatabase.Implementations;
+
+internal class SaleStorageContract : ISaleStorageContract
+{
+    private readonly AndDietCokeDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SaleStorageContract(AndDietCokeDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Buyer, BuyerDataModel>();
+            cfg.CreateMap<Dish, DishDataModel>();
+            cfg.CreateMap<Worker, WorkerDataModel>();
+            cfg.CreateMap<OrderDish, OrderDishDataModel>();
+            cfg.CreateMap<Sale, SaleDataModel>();
+            cfg.CreateMap<OrderDishDataModel, OrderDish>();
+            cfg.CreateMap<SaleDataModel, Sale>()
+               .ForMember(x => x.IsCancel, x => x.MapFrom(src => false))
+               .ForMember(x => x.OrderDishes, x => x.MapFrom(src => src.Dishes));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? workerId = null, string? buyerId = null, string? dishId = null)
+    {
+        try
+        {
+            var query = _dbContext.Sales.Include(x => x.Buyer).Include(x => x.Worker).Include(x => x.OrderDishes)!.ThenInclude(x => x.Dish).AsQueryable();
+            if (startDate is not null && endDate is not null)
+            {
+                query = query.Where(x => x.SaleDate >= startDate && x.SaleDate < endDate);
+            }
+            if (workerId is not null)
+            {
+                query = query.Where(x => x.WorkerId == workerId);
+            }
+            if (buyerId is not null)
+            {
+                query = query.Where(x => x.BuyerId == buyerId);
+            }
+            if (dishId is not null)
+            {
+                query = query.Where(x => x.OrderDishes!.Any(y => y.DishId == dishId));
+            }
+            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.Buyer).Include(x => x.Worker).Include(x => x.OrderDishes)!.ThenInclude(x => x.Dish).FirstOrDefault(x => x.Id == id);
+}

AndDietCokeProject/AndDietCokeDatabase/Implementations/WorkerStorageContract.cs

@@ -0,0 +1,155 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeDatabase.Models;
+using AutoMapper;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Implementations;
+
+internal class WorkerStorageContract : IWorkerStorageContract
+{
+    private readonly AndDietCokeDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public WorkerStorageContract(AndDietCokeDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Post, PostDataModel>()
+                .ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+            cfg.CreateMap<Worker, WorkerDataModel>();
+            cfg.CreateMap<WorkerDataModel, Worker>();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<WorkerDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null)
+    {
+        try
+        {
+            var query = _dbContext.Workers.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 >= fromBirthDate && x.BirthDate <= toBirthDate);
+            }
+            if (fromEmploymentDate is not null && toEmploymentDate is not null)
+            {
+                query = query.Where(x => x.EmploymentDate >= fromEmploymentDate && x.EmploymentDate <= toEmploymentDate);
+            }
+            return [.. JoinPost(query).Select(x => _mapper.Map<WorkerDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public WorkerDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<WorkerDataModel>(GetWorkerById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public WorkerDataModel? GetElementByFIO(string fio)
+    {
+        try
+        {
+            return _mapper.Map<WorkerDataModel>(AddPost(_dbContext.Workers.FirstOrDefault(x => x.FIO == fio && !x.IsDeleted)));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(WorkerDataModel workerDataModel)
+    {
+        try
+        {
+            _dbContext.Workers.Add(_mapper.Map<Worker>(workerDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", workerDataModel.Id);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(WorkerDataModel workerDataModel)
+    {
+        try
+        {
+            var element = GetWorkerById(workerDataModel.Id) ?? throw new ElementNotFoundException(workerDataModel.Id);
+            _dbContext.Workers.Update(_mapper.Map(workerDataModel, 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 = GetWorkerById(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);
+        }
+    }
+    private Worker? GetWorkerById(string id) => AddPost(_dbContext.Workers.FirstOrDefault(x => x.Id == id && !x.IsDeleted));
+
+    private IQueryable<Worker> JoinPost(IQueryable<Worker> query)
+        => query.GroupJoin(_dbContext.Posts.Where(x => x.IsActual), x => x.PostId, y => y.PostId, (x, y) => new { Worker = x, Post = y })
+                .SelectMany(xy => xy.Post.DefaultIfEmpty(), (x, y) => x.Worker.AddPost(y));
+
+    private Worker? AddPost(Worker? worker)
+        => worker?.AddPost(_dbContext.Posts.FirstOrDefault(x => x.PostId == worker.PostId && x.IsActual));
+}

AndDietCokeProject/AndDietCokeDatabase/Models/Buyer.cs

@@ -0,0 +1,25 @@
+using AndDietCokeContracts.DataModels;
+using AutoMapper;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Models;
+
+[AutoMap(typeof(BuyerDataModel), ReverseMap = true)]
+public class Buyer
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public required string PhoneNumber { get; set; }
+
+    public double DiscountSize { get; set; }
+
+    [ForeignKey("BuyerId")]
+    public List<Sale>? Sales { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/Dish.cs

@@ -0,0 +1,26 @@
+using AndDietCokeContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+namespace AndDietCokeDatabase.Models;
+
+public class Dish
+{
+    public required string Id { get; set; }
+
+    public required string DishName { get; set; }
+
+    public DishType DishType { get; set; }
+
+    public double Price { get; set; }
+
+    public bool IsDeleted { get; set; }
+
+    [ForeignKey("DishId")]
+    public List<DishHistory>? DishHistories { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/DishHistory.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Models;
+
+public class DishHistory
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string DishId { get; set; }
+
+    public double OldPrice { get; set; }
+
+    public DateTime ChangeDate { get; set; }
+
+    public Dish? Dish { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/OrderDish.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Models;
+
+public class OrderDish
+{
+    public required string OrderId { get; set; }
+
+    public required string DishId { get; set; }
+
+    public int Count { get; set; }
+    public double Price { get; set; }
+
+    public Sale? Sale { get; set; }
+
+    public Dish? Dish { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/Post.cs

@@ -0,0 +1,25 @@
+using AndDietCokeContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.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 double Salary { get; set; }
+
+    public bool IsActual { get; set; }
+
+    public DateTime ChangeDate { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/Salary.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Models;
+
+public class Salary
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string WorkerId { get; set; }
+
+    public DateTime SalaryDate { get; set; }
+
+    public double WorkerSalary { get; set; }
+
+    public Worker? Worker { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/Sale.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeDatabase.Models;
+
+public class Sale
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string WorkerId { get; set; }
+
+    public string? BuyerId { get; set; }
+
+    public DateTime SaleDate { get; set; }
+
+    public double Sum { get; set; }
+
+    public bool IsConstantClient { get; set; }
+
+    public bool IsCancel { get; set; }
+
+    public Worker? Worker { get; set; }
+
+    public Buyer? Buyer { get; set; }
+
+    [ForeignKey("SaleId")]
+    public List<OrderDish>? OrderDishes { get; set; }
+}

AndDietCokeProject/AndDietCokeDatabase/Models/Worker.cs

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

AndDietCokeProject/AndDietCokeProject.sln

@@ -1,11 +1,20 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.12.35707.178
+VisualStudioVersion = 17.7.34024.191
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AndDietCokeContracts", "AndDietCokeContracts\AndDietCokeContracts.csproj", "{775E4654-C135-47D1-A1FF-4B26160CA6CB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AndDietCokeContracts", "AndDietCokeProject\AndDietCokeContracts.csproj", "{624595D1-D7AA-4448-AA30-4D5AA21AE6D6}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AndDietCokeTests", "AndDietCokeTests\AndDietCokeTests.csproj", "{97CF49C2-6F17-4FCB-B2AD-D84AED6A1AF9}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AndDietCokeTests", "AndDietCokeTests\AndDietCokeTests.csproj", "{EABA3AD5-7690-448A-BEE6-010499DD8790}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AndDietCokeBuisnessLogic", "AndDietCokeBuisnessLogic\AndDietCokeBuisnessLogic.csproj", "{3C1C0E8F-5CB4-4E93-B20C-86FF4B248ECF}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AndDietCokeDatabase", "AndDietCokeDatabase\AndDietCokeDatabase.csproj", "{4AFC4FDC-F8CA-4CC5-84E2-162ADA98EDD4}"
+	ProjectSection(ProjectDependencies) = postProject
+		{624595D1-D7AA-4448-AA30-4D5AA21AE6D6} = {624595D1-D7AA-4448-AA30-4D5AA21AE6D6}
+	EndProjectSection
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AndDietCokeWebApi", "AndDietCokeWebApi\AndDietCokeWebApi.csproj", "{59659F17-4A33-47B1-951B-A329A547B3BF}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -13,16 +22,31 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{775E4654-C135-47D1-A1FF-4B26160CA6CB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{775E4654-C135-47D1-A1FF-4B26160CA6CB}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{775E4654-C135-47D1-A1FF-4B26160CA6CB}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{775E4654-C135-47D1-A1FF-4B26160CA6CB}.Release|Any CPU.Build.0 = Release|Any CPU
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+		{59659F17-4A33-47B1-951B-A329A547B3BF}.Release|Any CPU.ActiveCfg = Release|Any CPU
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {9D9DF4B3-57A3-423C-B4C4-78AD94A0FD6E}
+	EndGlobalSection
 EndGlobal

AndDietCokeProject/AndDietCokeProject/AdapterContracts/IBuyerAdapter.cs

@@ -0,0 +1,22 @@
+using AndDietCokeContracts.AdapterContracts.OperationResponses;
+using AndDietCokeContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.AdapterContracts;
+
+public interface IBuyerAdapter
+{
+    BuyerOperationResponse GetList();
+
+    BuyerOperationResponse GetElement(string data);
+
+    BuyerOperationResponse RegisterBuyer(BuyerBindingModel buyerModel);
+
+    BuyerOperationResponse ChangeBuyerInfo(BuyerBindingModel buyerModel);
+
+    BuyerOperationResponse RemoveBuyer(string id);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/IDishAdapter.cs

@@ -0,0 +1,24 @@
+using AndDietCokeContracts.AdapterContracts.OperationResponses;
+using AndDietCokeContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.AdapterContracts;
+
+public interface IDishAdapter
+{
+    DishOperationResponse GetList(bool includeDeleted);
+
+    DishOperationResponse GetHistory(string id);
+
+    DishOperationResponse GetElement(string data);
+
+    DishOperationResponse RegisterDish(DishBindingModel dishModel);
+
+    DishOperationResponse ChangeDishInfo(DishBindingModel dishModel);
+
+    DishOperationResponse RemoveDish(string id);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/IPostAdapter.cs

@@ -0,0 +1,26 @@
+using AndDietCokeContracts.AdapterContracts.OperationResponses;
+using AndDietCokeContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.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);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/ISalaryAdapter.cs

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

AndDietCokeProject/AndDietCokeProject/AdapterContracts/ISaleAdapter.cs

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

AndDietCokeProject/AndDietCokeProject/AdapterContracts/IWorkerAdapter.cs

@@ -0,0 +1,28 @@
+using AndDietCokeContracts.AdapterContracts.OperationResponses;
+using AndDietCokeContracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.AdapterContracts;
+
+public interface IWorkerAdapter
+{
+    WorkerOperationResponse GetList(bool includeDeleted);
+
+    WorkerOperationResponse GetPostList(string id, bool includeDeleted);
+
+    WorkerOperationResponse GetListByBirthDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+    WorkerOperationResponse GetListByEmploymentDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+    WorkerOperationResponse GetElement(string data);
+
+    WorkerOperationResponse RegisterWorker(WorkerBindingModel workerModel);
+
+    WorkerOperationResponse ChangeWorkerInfo(WorkerBindingModel workerModel);
+
+    WorkerOperationResponse RemoveWorker(string id);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/OperationResponses/BuyerOperationResponse.cs

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

AndDietCokeProject/AndDietCokeProject/AdapterContracts/OperationResponses/DishOperationResponse.cs

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

AndDietCokeProject/AndDietCokeProject/AdapterContracts/OperationResponses/PostOperationResponse.cs

@@ -0,0 +1,24 @@
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.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);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/OperationResponses/SalaryOperationResponse.cs

@@ -0,0 +1,22 @@
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.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);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/OperationResponses/SaleOperationResponse.cs

@@ -0,0 +1,24 @@
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.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);
+}

AndDietCokeProject/AndDietCokeProject/AdapterContracts/OperationResponses/WorkerOperationResponse.cs

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

AndDietCokeProject/AndDietCokeProject/AndDietCokeContracts.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>preview</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="EntityFramework" Version="6.5.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Abstractions" Version="2.3.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.3.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.4" />
+    <PackageReference Include="Npgsql" Version="9.0.3" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+  </ItemGroup>
+
+</Project>

AndDietCokeProject/AndDietCokeProject/BindingModels/BuyerBindingModel.cs

@@ -0,0 +1,12 @@
+namespace AndDietCokeContracts.BindingModels;
+
+public class BuyerBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? FIO { get; set; }
+
+    public string? PhoneNumber { get; set; }
+
+    public double DiscountSize { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/BindingModels/DishBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BindingModels;
+
+public class DishBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? DishName { get; set; }
+
+    public int DishType { get; set; }
+
+    public double Price { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/BindingModels/OrderDishBindingModel.cs

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

AndDietCokeProject/AndDietCokeProject/BindingModels/PostBindingModel.cs

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

AndDietCokeProject/AndDietCokeProject/BindingModels/SaleBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BindingModels;
+
+public class SaleBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? WorkerId { get; set; }
+
+    public string? BuyerId { get; set; }
+
+    public List<OrderDishBindingModel>? Dishes { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/BindingModels/WorkerBindingModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BindingModels;
+
+public class WorkerBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? FIO { get; set; }
+
+    public string? PostId { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/BisnessLogicsContracts/IBuyerBusinessLogicContract.cs

@@ -0,0 +1,18 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BisnessLogicsContracts;
+
+public interface IBuyerBusinessLogicContract
+{
+    List<BuyerDataModel> GetAllBuyers();
+    BuyerDataModel GetBuyerByData(string data);
+    void InsertBuyer(BuyerDataModel buyerDataModel);
+    void UpdateBuyer(BuyerDataModel buyerDataModel);
+    void DeleteBuyer(string id);
+}
+

AndDietCokeProject/AndDietCokeProject/BisnessLogicsContracts/IDishBusinessLogicContract.cs

@@ -0,0 +1,19 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BisnessLogicsContracts;
+
+public interface IDishBusinessLogicContract
+{
+    List<DishDataModel> GetAllDishes(bool onlyActive = true);
+    List<DishHistoryDataModel> GetDishHistoryByDish(string dishId);
+    DishDataModel GetDishByData(string data);
+    void InsertDish(DishDataModel dishDataModel);
+    void UpdateDish(DishDataModel dishDataModel);
+    void DeleteDish(string id);
+}
+

AndDietCokeProject/AndDietCokeProject/BisnessLogicsContracts/IPostBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BisnessLogicsContracts;
+
+public interface IPostBusinessLogicContract
+{
+    List<PostDataModel> GetAllPosts(bool onlyActive);
+    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);
+}
+

AndDietCokeProject/AndDietCokeProject/BisnessLogicsContracts/ISalaryBusinessLogicContract.cs

@@ -0,0 +1,15 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BisnessLogicsContracts;
+
+public interface ISalaryBusinessLogicContract
+{
+    List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate);
+    List<SalaryDataModel> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId);
+    void CalculateSalaryByMounth(DateTime date);
+}

AndDietCokeProject/AndDietCokeProject/BisnessLogicsContracts/ISaleBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BisnessLogicsContracts;
+
+public interface ISaleBusinessLogicContract
+{
+    List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate);
+    List<SaleDataModel> GetAllSalesByWorkerByPeriod(string workerId, DateTime fromDate, DateTime toDate);
+    List<SaleDataModel> GetAllSalesByBuyerByPeriod(string buyerId, DateTime fromDate, DateTime toDate);
+    List<SaleDataModel> GetAllSalesByDishByPeriod(string dishId, DateTime fromDate, DateTime toDate);
+    SaleDataModel GetSaleByData(string data);
+    void InsertSale(SaleDataModel saleDataModel);
+    void CancelSale(string id);
+}
+

AndDietCokeProject/AndDietCokeProject/BisnessLogicsContracts/IWorkerBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.BisnessLogicsContracts;
+
+public interface IWorkerBusinessLogicContract
+{
+    List<WorkerDataModel> GetAllWorkers(bool onlyActive = true);
+    List<WorkerDataModel> GetAllWorkersByPost(string postId, bool onlyActive = true);
+    List<WorkerDataModel> GetAllWorkersByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+    List<WorkerDataModel> GetAllWorkersByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+    WorkerDataModel GetWorkerByData(string data);
+    void InsertWorker(WorkerDataModel workerDataModel);
+    void UpdateWorker(WorkerDataModel workerDataModel);
+    void DeleteWorker(string id);
+}

AndDietCokeProject/AndDietCokeProject/DataModels/BuyerDataModel.cs

@@ -0,0 +1,37 @@
+using AndDietCokeContracts.Extensions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+using System.Xml;
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.Exceptions;
+
+namespace AndDietCokeContracts.DataModels;
+
+public class BuyerDataModel(string id, string fio, string phoneNumber, double discountSize) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string FIO { get; private set; } = fio;
+    public string PhoneNumber { get; private set; } = phoneNumber;
+    public double DiscountSize { get; private set; } = discountSize;
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            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 (FIO.IsEmpty())
+            throw new ValidationException("Field FIO is empty");
+        if (PhoneNumber.IsEmpty())
+            throw new ValidationException("Field PhoneNumber is empty");
+        if (!Regex.IsMatch(PhoneNumber, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+            throw new ValidationException("Field PhoneNumber is not a phone number");
+        if (!Regex.IsMatch(FIO, @"^[А-ЯЁA-Z][а-яёa-z]+(?:-[А-ЯЁA-Z][а-яёa-z]+)?\s[А-ЯЁA-Z][а-яёa-z]+(?:\s[А-ЯЁA-Z][а-яёa-z]+)?$"))
+            throw new ValidationException("Incorrect FIO input");
+    }
+}

AndDietCokeProject/AndDietCokeProject/DataModels/DishDataModel.cs

@@ -0,0 +1,37 @@
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+
+namespace AndDietCokeContracts.DataModels;
+
+public class DishDataModel(string id, string dishName, DishType dishType, double price, bool isDeleted) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string DishName { get; private set; } = dishName;
+    public DishType DishType { get; private set; } = dishType;
+    public double Price { get; private set; } = price;
+    public bool IsDeleted { get; private set; } = isDeleted;
+    
+    public DishDataModel(string id, string dishName, int dishType, double price) : this(id, dishName, (DishType)dishType, price, false) { }
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            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 (DishName.IsEmpty())
+            throw new ValidationException("Field DishName is empty");
+        if (DishType == DishType.None)
+            throw new ValidationException("Field DishType is empty");
+        if (Price <= 0)
+            throw new ValidationException("Field Price is less than or equal to 0");
+    }
+}

AndDietCokeProject/AndDietCokeProject/DataModels/DishHistoryDataModel.cs

@@ -1,6 +1,6 @@
-using AndDietCokeContracts.Exceptions;
-using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.Exceptions;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,13 +9,20 @@ using System.Threading.Tasks;
 
 namespace AndDietCokeContracts.DataModels;
 
-public class DishHistoryDataModel(string productId, double oldPrice, string orderid) : IValidation
-
+public class DishHistoryDataModel(string dishId, double oldPrice) : IValidation
 {
-    public string DishId { get; private set; } = productId;
+    private readonly DishDataModel? _dish;
+    public string DishId { get; private set; } = dishId;
     public double OldPrice { get; private set; } = oldPrice;
     public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
-    public string OrderId { get; private set; } = orderid;
+    public string DishName => _dish!.DishName;
+
+    public DishHistoryDataModel(string dishId, double oldPrice, DateTime changeDate, DishDataModel dish) : this(dishId, oldPrice)
+    {
+        ChangeDate = changeDate;
+        _dish = dish;
+    }
+
     public void Validate()
     {
         if (DishId.IsEmpty())
@@ -24,10 +31,6 @@ public class DishHistoryDataModel(string productId, double oldPrice, string orde
             throw new ValidationException("The value in the field DishId is not a unique identifier");
         if (OldPrice <= 0)
             throw new ValidationException("Field OldPrice is less than or equal to 0");
-        if (OrderId.IsEmpty())
-            throw new ValidationException("Field OrderId is empty");
-        if (!OrderId.IsGuid())
-            throw new ValidationException("The value in the field OrderId is not a unique identifier");
     }
-
 }
+

AndDietCokeProject/AndDietCokeProject/DataModels/OrderDishDataModel.cs

@@ -0,0 +1,40 @@
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.Infrastrusture;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.DataModels;
+
+public class OrderDishDataModel(string orderId, string dishId, int count, double price) : IValidation
+{
+    private readonly DishDataModel? _dish;
+    public string OrderId { get; private set; } = orderId;
+    public string DishId { get; private set; } = dishId;
+    public int Count { get; private set; } = count;
+    public double Price { get; private set; } = price;
+    public string DishName => _dish?.DishName ?? string.Empty;
+
+    public OrderDishDataModel(string saleId, string dishId, int count, double price, DishDataModel dish) : this(saleId, dishId, count, price)
+    {
+        _dish = dish;
+    }
+
+    public void Validate()
+    {
+        if (OrderId.IsEmpty())
+            throw new ValidationException("Field OrderId is empty");
+        if (!OrderId.IsGuid())
+            throw new ValidationException("The value in the field OrderId is not a unique identifier");
+        if (DishId.IsEmpty())
+            throw new ValidationException("Field DishId is empty");
+        if (!DishId.IsGuid())
+            throw new ValidationException("The value in the field DishId is not a unique identifier");
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+    }
+}

AndDietCokeProject/AndDietCokeProject/DataModels/PostDataModel.cs

@@ -0,0 +1,34 @@
+using AndDietCokeContracts.Enums;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.Infrastrusture;
+using AndDietCokeContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+
+namespace AndDietCokeContracts.DataModels;
+
+public class PostDataModel(string id, string postName, PostType postType, double salary) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string PostName { get; private set; } = postName;
+    public PostType PostType { get; private set; } = postType;
+    public double Salary { get; private set; } = salary;
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            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 (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");
+    }
+}
+

AndDietCokeProject/AndDietCokeProject/DataModels/SalaryDataModel.cs

@@ -0,0 +1,41 @@
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.Infrastrusture;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.DataModels;
+
+public class SalaryDataModel(string id, string workerId, DateTime salaryDate, double
+workerSalary) : IValidation
+{
+    private readonly WorkerDataModel? _worker;
+    public string Id { get; private set; } = id;
+    public string WorkerId { get; private set; } = workerId;
+    public DateTime SalaryDate { get; private set; } = salaryDate;
+    public double Salary { get; private set; } = workerSalary;
+    public string WorkerFIO => _worker?.FIO ?? string.Empty;
+
+    public SalaryDataModel(string id, string workerId, DateTime salaryDate, double salary, WorkerDataModel worker) : this(id, workerId, salaryDate, salary)
+    {
+        _worker = worker;
+    }
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Salary Id is empty");
+        if (!Id.IsGuid())
+            throw new ValidationException("Salary Id is not a valid GUID");
+        if (WorkerId.IsEmpty())
+            throw new ValidationException("Field WorkerId is empty");
+        if (!WorkerId.IsGuid())
+            throw new ValidationException("The value in the field WorkerId is not a unique identifier");
+        if (Salary <= 0)
+            throw new ValidationException("Field Salary is less than or equal to 0");
+    }
+}
+

AndDietCokeProject/AndDietCokeProject/DataModels/SaleDataModel.cs

@@ -0,0 +1,68 @@
+using AndDietCokeContracts.Enums;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using AndDietCokeContracts.Infrastrusture;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+
+namespace AndDietCokeContracts.DataModels;
+
+public class SaleDataModel : IValidation
+{
+    private readonly BuyerDataModel? _buyer;
+
+    private readonly WorkerDataModel? _worker;
+
+    public string Id { get; private set; }
+    public string WorkerId { get; private set; }
+    public string? BuyerId { get; private set; }
+    public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
+    public double Sum { get; private set; } 
+    public bool IsConstantClient { get; private set; }
+    public bool IsCancel { get; private set; } 
+    public List<OrderDishDataModel>? Dishes { get; private set; }
+    public string BuyerFIO => _buyer?.FIO ?? string.Empty;
+    public string WorkerFIO => _worker?.FIO ?? string.Empty;
+
+    public SaleDataModel(string id, string workerId, string? buyerId, bool isConstantClient, bool isCancel, List<OrderDishDataModel> orderDishes)
+    {
+        Id = id;
+        WorkerId = workerId;
+        BuyerId = buyerId;
+        IsCancel = isCancel;
+        IsConstantClient = isConstantClient;
+        Dishes = orderDishes;
+        Sum = Dishes?.Sum(x => x.Price * x.Count) ?? 0;
+    }
+
+    public SaleDataModel(string id, string workerId, string? buyerId, double sum, bool isConstantClient, bool isCancel, List<OrderDishDataModel> orderDishes, WorkerDataModel worker, BuyerDataModel? buyer) : this(id, workerId, buyerId, isConstantClient, isCancel, orderDishes)
+    {
+        Sum = sum;
+        _worker = worker;
+        _buyer = buyer;
+    }
+
+    public SaleDataModel(string id, string workerId, string? buyerId, List<OrderDishDataModel> dishes) : this(id, workerId, buyerId, true, false, dishes) { }
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            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 (WorkerId.IsEmpty())
+            throw new ValidationException("Field WorkerId is empty");
+        if (!WorkerId.IsGuid())
+            throw new ValidationException("The value in the field WorkerId is not a unique identifier");
+        if (!BuyerId?.IsGuid() ?? !BuyerId?.IsEmpty() ?? false)
+            throw new ValidationException("The value in the field BuyerId is not a unique identifier");
+        if (Sum <= 0)
+            throw new ValidationException("Field Sum is less than or equal to 0");
+        if ((Dishes?.Count ?? 0) == 0)
+            throw new ValidationException("The sale must include dishes");
+    }
+}

AndDietCokeProject/AndDietCokeProject/DataModels/WorkerDataModel.cs

@@ -1,50 +1,52 @@
-using AndDietCokeContracts.Enums;
-using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Exceptions;
 using AndDietCokeContracts.Extensions;
-using AndDietCokeContracts.Infrastructure;
-using System.Text.RegularExpressions;
+using AndDietCokeContracts.Infrastrusture;
+using Microsoft.Extensions.Hosting;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
 namespace AndDietCokeContracts.DataModels;
 
-public class EmployeeDataModel(string id, string fio, string positionId, PositionType positiontype, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
+public class WorkerDataModel(string id, string fio, 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;
-    public string PositionId { get; private set; } = positionId;
-    public PositionType PositionType { get; private set; } = positiontype;
+    public string PostId { get; private set; } = postId;
     public DateTime BirthDate { get; private set; } = birthDate;
     public DateTime EmploymentDate { get; private set; } = employmentDate;
     public bool IsDeleted { get; private set; } = isDeleted;
+    public string PostName => _post?.PostName ?? string.Empty;
+
+    public WorkerDataModel(string id, string fio, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted, PostDataModel post) : this(id, fio, postId, birthDate, employmentDate, isDeleted)
+    {
+        _post = post;
+    }
+    public WorkerDataModel(string id, string fio,string postId, DateTime birthDate, DateTime employmentDate) : this(id, fio, postId, birthDate, employmentDate, false) { }
 
     public void Validate()
     {
         if (Id.IsEmpty())
             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 (FIO.IsEmpty())
             throw new ValidationException("Field FIO is empty");
-
-        if (!Regex.IsMatch(FIO, @"^([А-ЯЁ][а-яё]*(-[А-ЯЁ][а-яё]*)?)\s([А-ЯЁ]\.?\s?([А-ЯЁ]\.?\s?)?)?$"))
-            throw new ValidationException("Field FIO is not a fio");
-
-        if (PositionId.IsEmpty())
+        if (PostId.IsEmpty())
             throw new ValidationException("Field PostId is empty");
-
-        if (!PositionId.IsGuid())
+        if (!PostId.IsGuid())
             throw new ValidationException("The value in the field PostId is not a unique identifier");
-
-        if (BirthDate.Date > DateTime.Now.AddYears(-14).Date)
+        if (BirthDate.Date > DateTime.Now.AddYears(-16).Date)
             throw new ValidationException($"Minors cannot be hired (BirthDate = {BirthDate.ToShortDateString()})");
-
-        if (PositionType == PositionType.None)
-            throw new ValidationException("Field PositionType is empty");
-
         if (EmploymentDate.Date < BirthDate.Date)
             throw new ValidationException("The date of employment cannot be less than the date of birth");
-
-        if ((EmploymentDate - BirthDate).TotalDays / 365 < 14)
-            throw new ValidationException($"Minors cannot be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate -{BirthDate.ToShortDateString()})");
+        if ((EmploymentDate - BirthDate).TotalDays / 365 < 16) //EmploymentDate.Year - BirthDate.Year
+            throw new ValidationException($"Minors cannot be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate - {BirthDate.ToShortDateString()})");
     }
-}
+}

AndDietCokeProject/AndDietCokeProject/Enums/DishType.cs

@@ -9,10 +9,7 @@ namespace AndDietCokeContracts.Enums;
 public enum DishType
 {
     None = 0,
-    Margherita = 1,
-    Pepperoni = 2,
-    BBQChicken = 3,
-    Veggie = 4,
-    Cola = 5
+    Base = 1,
+    Dessert = 2,
+    Drink = 3
 }
-

AndDietCokeProject/AndDietCokeProject/Enums/PostType.cs

@@ -6,11 +6,11 @@ using System.Threading.Tasks;
 
 namespace AndDietCokeContracts.Enums;
 
-public enum PositionType
+public enum PostType
 {
     None = 0,
     Waiter = 1,
-    Сhef = 2,
-    Manager = 3,
-    Assistant = 4
+    Chef = 2,
+    Packer = 3
 }
+

AndDietCokeProject/AndDietCokeProject/Exceptions/ElementDeletedException.cs

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

AndDietCokeProject/AndDietCokeProject/Exceptions/ElementExistsException.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.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;
+    }
+}

AndDietCokeProject/AndDietCokeProject/Exceptions/ElementNotFoundException.cs

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

AndDietCokeProject/AndDietCokeProject/Exceptions/IncorrectDatesException.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace AndDietCokeContracts.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}") { }
+}

AndDietCokeProject/AndDietCokeProject/Exceptions/NullListException.cs

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

AndDietCokeProject/AndDietCokeProject/Exceptions/StorageException.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.Exceptions;
+
+public class StorageException : Exception
+{
+    public StorageException(Exception ex) : base($"Error while working in storage: { ex.Message}", ex) { }
+}
+

AndDietCokeProject/AndDietCokeProject/Exceptions/ValidationException.cs

@@ -8,8 +8,5 @@ namespace AndDietCokeContracts.Exceptions;
 
 public class ValidationException : Exception
 {
-    public ValidationException(string message) : base(message) 
-    {
-    
-    }
+    public ValidationException(string message) : base(message) { }
 }

AndDietCokeProject/AndDietCokeProject/Extensions/DateTimeExtensions.cs

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

AndDietCokeProject/AndDietCokeProject/Infrastrusture/IConfigurationDatabase.cs

@@ -0,0 +1,6 @@
+namespace AndDietCokeContracts.Infrastrusture;
+
+public interface IConfigurationDatabase
+{
+    string ConnectionString { get; }
+}

AndDietCokeProject/AndDietCokeProject/Infrastrusture/IValidation.cs

@@ -4,10 +4,9 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace AndDietCokeContracts.Infrastructure
+namespace AndDietCokeContracts.Infrastrusture;
+
+public interface IValidation
 {
-    public interface IValidation
-    {
-        void Validate();
-    }
+    void Validate();
 }

AndDietCokeProject/AndDietCokeProject/Infrastrusture/OperationResponse.cs

@@ -0,0 +1,42 @@
+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 AndDietCokeContracts.Infrastrusture;
+
+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 };
+}

AndDietCokeProject/AndDietCokeProject/StoragesContracts/IBuyerStorageContract.cs

@@ -0,0 +1,19 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.StoragesContracts;
+
+public interface IBuyerStorageContract
+{
+    List<BuyerDataModel> GetList();
+    BuyerDataModel? GetElementById(string id);
+    BuyerDataModel? GetElementByPhoneNumber(string phoneNumber);
+    BuyerDataModel? GetElementByFIO(string fio);
+    void AddElement(BuyerDataModel buyerDataModel);
+    void UpdElement(BuyerDataModel buyerDataModel);
+    void DelElement(string id);
+}

AndDietCokeProject/AndDietCokeProject/StoragesContracts/IDishStorageContract.cs

@@ -0,0 +1,18 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.StoragesContracts;
+public interface IDishStorageContract
+{
+    List<DishDataModel> GetList(bool onlyActive = true);
+    List<DishHistoryDataModel> GetHistoryByDishId(string dishId);
+    DishDataModel? GetElementById(string id);
+    DishDataModel? GetElementByName(string name);
+    void AddElement(DishDataModel dishDataModel);
+    void UpdElement(DishDataModel dishDataModel);
+    void DelElement(string id);
+}

AndDietCokeProject/AndDietCokeProject/StoragesContracts/IPostStorageContract.cs

@@ -0,0 +1,21 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.StoragesContracts;
+
+public interface IPostStorageContract
+{
+    List<PostDataModel> GetList(bool onlyActual = true);
+    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);
+}
+

AndDietCokeProject/AndDietCokeProject/StoragesContracts/ISalaryStorageContract.cs

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

AndDietCokeProject/AndDietCokeProject/StoragesContracts/ISaleStorageContract.cs

@@ -0,0 +1,17 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.StoragesContracts;
+
+public interface ISaleStorageContract
+{
+    List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? workerId = null, string? buyerId = null, string? dishId = null);
+    SaleDataModel? GetElementById(string id);
+    void AddElement(SaleDataModel saleDataModel);
+    void DelElement(string id);
+}
+

AndDietCokeProject/AndDietCokeProject/StoragesContracts/IWorkerStorageContract.cs

@@ -0,0 +1,19 @@
+using AndDietCokeContracts.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.StoragesContracts;
+
+public interface IWorkerStorageContract
+{
+    List<WorkerDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null);
+    WorkerDataModel? GetElementById(string id);
+    WorkerDataModel? GetElementByFIO(string fio);
+    void AddElement(WorkerDataModel workerDataModel);
+    void UpdElement(WorkerDataModel workerDataModel);
+    void DelElement(string id);
+}
+

AndDietCokeProject/AndDietCokeProject/ViewModels/BuyerViewModel.cs

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

AndDietCokeProject/AndDietCokeProject/ViewModels/DishHistoryViewModel.cs

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

AndDietCokeProject/AndDietCokeProject/ViewModels/DishViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.ViewModels;
+
+public class DishViewModel
+{
+    public required string Id { get; set; }
+
+    public required string DishName { get; set; }
+
+    public required string DishType { get; set; }
+
+    public double Price { get; set; }
+
+    public bool IsDeleted { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/ViewModels/OrderDishViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.ViewModels;
+
+public class OrderDishViewModel
+{
+    public required string DishId { get; set; }
+
+    public required string DishName { get; set; }
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/ViewModels/PostViewModel.cs

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

AndDietCokeProject/AndDietCokeProject/ViewModels/SalaryViewModel.cs

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

AndDietCokeProject/AndDietCokeProject/ViewModels/SaleViewModel.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.ViewModels;
+
+public class SaleViewModel
+{
+    public required string Id { get; set; }
+
+    public required string WorkerId { get; set; }
+
+    public required string WorkerFIO { get; set; }
+
+    public string? BuyerId { get; set; }
+
+    public string? BuyerFIO { get; set; }
+
+    public DateTime SaleDate { get; set; }
+
+    public double Sum { get; set; }
+
+    public bool IsConstantClient { get; private set; }
+
+    public bool IsCancel { get; set; }
+
+    public required List<OrderDishViewModel> Dishes { get; set; }
+}

AndDietCokeProject/AndDietCokeProject/ViewModels/WorkerViewModel.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeContracts.ViewModels;
+
+public class WorkerViewModel
+{
+    public required string Id { get; set; }
+
+    public required string FIO { 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; }
+}

AndDietCokeProject/AndDietCokeTests/AndDietCokeTests.csproj

@@ -1,28 +1,48 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
+	<PropertyGroup>
+		<TargetFramework>net9.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
 
-    <IsPackable>false</IsPackable>
-    <IsTestProject>true</IsTestProject>
-  </PropertyGroup>
+		<IsPackable>false</IsPackable>
+		<IsTestProject>true</IsTestProject>
+		<LangVersion>preview</LangVersion>
+	</PropertyGroup>
+	
+	<ItemGroup>
+		<PackageReference Include="AutoMapper" Version="14.0.0" />
+		<PackageReference Include="EntityFramework" Version="6.5.1" />
+		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="9.0.4" />
+		<PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.4" />
+		<PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.4" />
+		<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.4" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
+		<PackageReference Include="Moq" Version="4.20.72" />
+		<PackageReference Include="Npgsql" Version="9.0.3" />
+		<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+		<PackageReference Include="NUnit" Version="4.3.2" />
+		<PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
+		<PackageReference Include="NUnit.Analyzers" Version="4.7.0">
+		  <PrivateAssets>all</PrivateAssets>
+		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="coverlet.collector" Version="6.0.4">
+		  <PrivateAssets>all</PrivateAssets>
+		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="Serilog" Version="4.2.0" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
-    <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
-  </ItemGroup>
+	<ItemGroup>
+		<ProjectReference Include="..\AndDietCokeBuisnessLogic\AndDietCokeBuisnessLogic.csproj" />
+		<ProjectReference Include="..\AndDietCokeDatabase\AndDietCokeDatabase.csproj" />
+		<ProjectReference Include="..\AndDietCokeProject\AndDietCokeContracts.csproj" />
+		<ProjectReference Include="..\AndDietCokeWebApi\AndDietCokeWebApi.csproj" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\AndDietCokeContracts\AndDietCokeContracts.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Using Include="NUnit.Framework" />
-  </ItemGroup>
+	<ItemGroup>
+		<Using Include="NUnit.Framework" />
+	</ItemGroup>
 
 </Project>

AndDietCokeProject/AndDietCokeTests/BuisnessLogicsContractsTests/BuyerBusinessLogicContractTests.cs

@@ -0,0 +1,356 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeBuisnessLogic.Implementations;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.Extensions;
+using NUnit.Framework;
+using System;
+using Microsoft.Extensions.Logging;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Moq;
+
+namespace AndDietCokeTests.BuisnessLogicsContractsTests;
+
+[TestFixture]
+internal class BuyerBusinessLogicContractTests
+{
+    private BuyerBusinessLogicContract _buyerBusinessLogicContract;
+    private Mock<IBuyerStorageContract> _buyerStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _buyerStorageContract = new Mock<IBuyerStorageContract>();
+        _buyerBusinessLogicContract = new BuyerBusinessLogicContract(_buyerStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _buyerStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllBuyers_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<BuyerDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "+7-111-111-11-11", 10),
+            new(Guid.NewGuid().ToString(), "fio 2", "+7-555-444-33-23", 10),
+            new(Guid.NewGuid().ToString(), "fio 3", "+7-777-777-7777", 10),
+        };
+        _buyerStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        //Act
+        var list = _buyerBusinessLogicContract.GetAllBuyers();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+
+    [Test]
+    public void GetAllBuyers_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.GetList()).Returns([]);
+        //Act
+        var list = _buyerBusinessLogicContract.GetAllBuyers();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _buyerStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllBuyers_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetAllBuyers(), Throws.TypeOf<NullListException>());
+        _buyerStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllBuyers_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetAllBuyers(), Throws.TypeOf<StorageException>());
+        _buyerStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetBuyerByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new BuyerDataModel(id, "fio", "+7-111-111-11-11", 10);
+        _buyerStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _buyerBusinessLogicContract.GetBuyerByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetBuyerByData_GetByFio_ReturnRecord_Test()
+    {
+        //Arrange
+        var fio = "fio";
+        var record = new BuyerDataModel(Guid.NewGuid().ToString(), fio, "+7-111-111-11-11", 10);
+        _buyerStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+        //Act
+        var element = _buyerBusinessLogicContract.GetBuyerByData(fio);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.FIO, Is.EqualTo(fio));
+        _buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetBuyerByData_GetByPhoneNumber_ReturnRecord_Test()
+    {
+        //Arrange
+        var phoneNumber = "+7-111-111-11-11";
+        var record = new BuyerDataModel(Guid.NewGuid().ToString(), "fio", phoneNumber, 10);
+        _buyerStorageContract.Setup(x => x.GetElementByPhoneNumber(phoneNumber)).Returns(record);
+        //Act
+        var element = _buyerBusinessLogicContract.GetBuyerByData(phoneNumber);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.PhoneNumber, Is.EqualTo(phoneNumber));
+        _buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetBuyerByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+        _buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetBuyerByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+        _buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetBuyerByData_GetByFio_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+        _buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+        _buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetBuyerByData_GetByPhoneNumber_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("+7-111-111-11-12"), Throws.TypeOf<ElementNotFoundException>());
+        _buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+        _buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetBuyerByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _buyerStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _buyerStorageContract.Setup(x => x.GetElementByPhoneNumber(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("fio"), Throws.TypeOf<StorageException>());
+        Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("+7-111-111-11-12"), Throws.TypeOf<StorageException>());
+        _buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+        _buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertBuyer_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new BuyerDataModel(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10);
+        _buyerStorageContract.Setup(x => x.AddElement(It.IsAny<BuyerDataModel>()))
+            .Callback((BuyerDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO && x.PhoneNumber == record.PhoneNumber;
+            });
+        //Act
+        _buyerBusinessLogicContract.InsertBuyer(record);
+        //Assert
+        _buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertBuyer_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.AddElement(It.IsAny<BuyerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(new(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10)), Throws.TypeOf<ElementExistsException>());
+        _buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertBuyer_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(null), Throws.TypeOf<ArgumentNullException>());
+        _buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertBuyer_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(new BuyerDataModel("id", "fio", "+7-111-111-11-11", 10)), Throws.TypeOf<ValidationException>());
+        _buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertBuyer_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.AddElement(It.IsAny<BuyerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(new(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10)), Throws.TypeOf<StorageException>());
+        _buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateBuyer_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new BuyerDataModel(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10);
+        _buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>()))
+            .Callback((BuyerDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO && x.PhoneNumber == record.PhoneNumber;
+            });
+        //Act
+        _buyerBusinessLogicContract.UpdateBuyer(record);
+        //Assert
+        _buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateBuyer_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10)), Throws.TypeOf<ElementNotFoundException>());
+        _buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateBuyer_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10)), Throws.TypeOf<ElementExistsException>());
+        _buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateBuyer_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(null), Throws.TypeOf<ArgumentNullException>());
+        _buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateBuyer_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new BuyerDataModel("id", "Петров Иван Александрович", "+7-111-111-11-11", 10)), Throws.TypeOf<ValidationException>());
+        _buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateBuyer_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new(Guid.NewGuid().ToString(), "Петров Иван Александрович", "+7-111-111-11-11", 10)), Throws.TypeOf<StorageException>());
+        _buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteBuyer_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _buyerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _buyerBusinessLogicContract.DeleteBuyer(id);
+        //Assert
+        _buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteBuyer_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteBuyer_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteBuyer_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer("id"), Throws.TypeOf<ValidationException>());
+        _buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteBuyer_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _buyerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

AndDietCokeProject/AndDietCokeTests/BuisnessLogicsContractsTests/DishBusinessLogicContractTests.cs

@@ -0,0 +1,404 @@
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeBuisnessLogic.Implementations;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Enums;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Extensions.Logging;
+using System.Threading.Tasks;
+using static NUnit.Framework.Internal.OSPlatform;
+
+namespace AndDietCokeTests.BuisnessLogicsContractsTests;
+
+internal class DishBusinessLogicContractTests
+{
+    private DishBusinessLogicContract _dishBusinessLogicContract;
+    private Mock<IDishStorageContract> _dishStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _dishStorageContract = new Mock<IDishStorageContract>();
+        _dishBusinessLogicContract = new DishBusinessLogicContract(_dishStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _dishStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllDishes_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<DishDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "name 1", DishType.Dessert, 10, false),
+            new(Guid.NewGuid().ToString(), "name 2", DishType.Dessert, 10, true),
+            new(Guid.NewGuid().ToString(), "name 3", DishType.Dessert, 10, false),
+        };
+        _dishStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _dishBusinessLogicContract.GetAllDishes(true);
+        var list = _dishBusinessLogicContract.GetAllDishes(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));
+        });
+        _dishStorageContract.Verify(x => x.GetList(true), Times.Once);
+        _dishStorageContract.Verify(x => x.GetList(false), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDishes_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns([]);
+        //Act
+        var listOnlyActive = _dishBusinessLogicContract.GetAllDishes(true);
+        var list = _dishBusinessLogicContract.GetAllDishes(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));
+        });
+        _dishStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllDishes_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetAllDishes(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _dishStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDishes_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetAllDishes(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _dishStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+    [Test]
+    public void GetDishHistoryByDish_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var dishId = Guid.NewGuid().ToString();
+        var listOriginal = new List<DishHistoryDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), 10),
+            new(Guid.NewGuid().ToString(), 15),
+            new(Guid.NewGuid().ToString(), 10),
+        };
+        _dishStorageContract.Setup(x => x.GetHistoryByDishId(It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _dishBusinessLogicContract.GetDishHistoryByDish(dishId);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _dishStorageContract.Verify(x => x.GetHistoryByDishId(dishId), Times.Once);
+    }
+
+    [Test]
+    public void GetDishHistoryByDish_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.GetHistoryByDishId(It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _dishBusinessLogicContract.GetDishHistoryByDish(Guid.NewGuid().ToString());
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _dishStorageContract.Verify(x => x.GetHistoryByDishId(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishHistoryByDish_DishIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishHistoryByDish(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _dishBusinessLogicContract.GetDishHistoryByDish(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _dishStorageContract.Verify(x => x.GetHistoryByDishId(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetDishHistoryByDish_DishIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishHistoryByDish("dishId"), Throws.TypeOf<ValidationException>());
+        _dishStorageContract.Verify(x => x.GetHistoryByDishId(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetDishHistoryByDish_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishHistoryByDish(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+        _dishStorageContract.Verify(x => x.GetHistoryByDishId(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishHistoryByDish_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.GetHistoryByDishId(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishHistoryByDish(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _dishStorageContract.Verify(x => x.GetHistoryByDishId(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new DishDataModel(id, "name", DishType.Dessert, 10, false);
+        _dishStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _dishBusinessLogicContract.GetDishByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _dishStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishByData_GetByName_ReturnRecord_Test()
+    {
+        //Arrange
+        var name = "name";
+        var record = new DishDataModel(Guid.NewGuid().ToString(), name, DishType.Dessert, 10, false);
+        _dishStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
+        //Act
+        var element = _dishBusinessLogicContract.GetDishByData(name);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.DishName, Is.EqualTo(name));
+        _dishStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _dishBusinessLogicContract.GetDishByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _dishStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+        _dishStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetDishByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _dishStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishByData_GetByName_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishByData("name"), Throws.TypeOf<ElementNotFoundException>());
+        _dishStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetDishByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _dishStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.GetDishByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _dishBusinessLogicContract.GetDishByData("name"), Throws.TypeOf<StorageException>());
+        _dishStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _dishStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertDish_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new DishDataModel(Guid.NewGuid().ToString(), "name", DishType.Dessert, 10, false);
+        _dishStorageContract.Setup(x => x.AddElement(It.IsAny<DishDataModel>()))
+            .Callback((DishDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.DishName == record.DishName && x.DishType == record.DishType && x.Price == record.Price && x.IsDeleted == record.IsDeleted;
+            });
+        //Act
+        _dishBusinessLogicContract.InsertDish(record);
+        //Assert
+        _dishStorageContract.Verify(x => x.AddElement(It.IsAny<DishDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertDish_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.AddElement(It.IsAny<DishDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.InsertDish(new(Guid.NewGuid().ToString(), "name", DishType.Dessert, 10, false)), Throws.TypeOf<ElementExistsException>());
+        _dishStorageContract.Verify(x => x.AddElement(It.IsAny<DishDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertDish_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.InsertDish(null), Throws.TypeOf<ArgumentNullException>());
+        _dishStorageContract.Verify(x => x.AddElement(It.IsAny<DishDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertDish_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.InsertDish(new DishDataModel("id", "name", DishType.Dessert, 10, false)), Throws.TypeOf<ValidationException>());
+        _dishStorageContract.Verify(x => x.AddElement(It.IsAny<DishDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertDish_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.AddElement(It.IsAny<DishDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.InsertDish(new(Guid.NewGuid().ToString(), "name", DishType.Dessert, 10, false)), Throws.TypeOf<StorageException>());
+        _dishStorageContract.Verify(x => x.AddElement(It.IsAny<DishDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateDish_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new DishDataModel(Guid.NewGuid().ToString(), "name", DishType.Dessert, 10, false);
+        _dishStorageContract.Setup(x => x.UpdElement(It.IsAny<DishDataModel>()))
+            .Callback((DishDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.DishName == record.DishName && x.DishType == record.DishType && x.Price == record.Price && x.IsDeleted == record.IsDeleted;
+            });
+        //Act
+        _dishBusinessLogicContract.UpdateDish(record);
+        //Assert
+        _dishStorageContract.Verify(x => x.UpdElement(It.IsAny<DishDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateDish_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.UpdElement(It.IsAny<DishDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.UpdateDish(new(Guid.NewGuid().ToString(), "name", DishType.Dessert, 10, false)), Throws.TypeOf<ElementNotFoundException>());
+        _dishStorageContract.Verify(x => x.UpdElement(It.IsAny<DishDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateDish_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.UpdElement(It.IsAny<DishDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.UpdateDish(new(Guid.NewGuid().ToString(), "anme", DishType.Dessert, 10, false)), Throws.TypeOf<ElementExistsException>());
+        _dishStorageContract.Verify(x => x.UpdElement(It.IsAny<DishDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateDish_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.UpdateDish(null), Throws.TypeOf<ArgumentNullException>());
+        _dishStorageContract.Verify(x => x.UpdElement(It.IsAny<DishDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateDish_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.UpdateDish(new DishDataModel("id", "name", DishType.Dessert, 10, false)), Throws.TypeOf<ValidationException>());
+        _dishStorageContract.Verify(x => x.UpdElement(It.IsAny<DishDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateDish_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.UpdElement(It.IsAny<DishDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.UpdateDish(new(Guid.NewGuid().ToString(), "name", DishType.Dessert, 10, false)), Throws.TypeOf<StorageException>());
+        _dishStorageContract.Verify(x => x.UpdElement(It.IsAny<DishDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteDish_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _dishStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _dishBusinessLogicContract.DeleteDish(id);
+        //Assert
+        _dishStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteDish_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _dishStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.DeleteDish(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _dishStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteDish_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.DeleteDish(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _dishBusinessLogicContract.DeleteDish(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _dishStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteDish_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.DeleteDish("id"), Throws.TypeOf<ValidationException>());
+        _dishStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteDish_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _dishStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _dishBusinessLogicContract.DeleteDish(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _dishStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

AndDietCokeProject/AndDietCokeTests/BuisnessLogicsContractsTests/PostBusinessLogicContractTests.cs

@@ -0,0 +1,425 @@
+using AndDietCokeContracts.BisnessLogicsContracts;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Enums;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeBuisnessLogic.Implementations;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using AndDietCokeContracts.Exceptions;
+
+namespace AndDietCokeTests.BuisnessLogicsContractsTests;
+
+[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);
+    }
+    [SetUp]
+    public void SetUp()
+    {
+        _postStorageContract.Reset();
+    }
+    [Test]
+    public void GetAllPosts_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<PostDataModel>()
+        {
+            new(Guid.NewGuid().ToString(),"name 1", PostType.Chef, 10),
+            new(Guid.NewGuid().ToString(),"name 2", PostType.Chef, 10),
+            new(Guid.NewGuid().ToString(),"name 3", PostType.Chef, 10)
+        };
+        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
+        var listAll = _postBusinessLogicContract.GetAllPosts(false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(listAll, Is.Not.Null);
+            Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+            Assert.That(listAll, Is.EquivalentTo(listOriginal));
+        });
+        _postStorageContract.Verify(x => x.GetList(true), Times.Once);
+        _postStorageContract.Verify(x => x.GetList(false), Times.Once);
+    }
+    [Test]
+    public void GetAllPosts_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns([]);
+        //Act
+        var list = _postBusinessLogicContract.GetAllPosts(true);
+        //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(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+    [Test]
+    public void GetAllPosts_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+    [Test]
+    public void GetAllDataOfPost_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var postId = Guid.NewGuid().ToString();
+        var listOriginal = new List<PostDataModel>()
+        {
+            new(postId,"name 1", PostType.Chef, 10),
+            new(postId,"name 2", PostType.Chef, 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.Chef, 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(), "name", PostType.Chef, 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.Chef, 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.Salary == record.Salary;
+        });
+        //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.Chef, 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.Chef, 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.Chef, 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.Chef, 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.Salary == record.Salary;
+        });
+        //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.Chef, 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(), "name", PostType.Chef, 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.Chef, 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.Chef, 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);
+    }
+}
+
+

AndDietCokeProject/AndDietCokeTests/BuisnessLogicsContractsTests/SalaryBusinessLogicContractTests.cs

@@ -0,0 +1,299 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Enums;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeBuisnessLogic.Implementations;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+
+namespace AndDietCokeTests.BuisnessLogicsContractsTests;
+
+[TestFixture]
+internal class SalaryBuisnessLogicContractTests
+{
+    private SalaryBusinessLogicContract _salaryBusinessLogicContract;
+    private Mock<ISalaryStorageContract> _salaryStorageContract;
+    private Mock<ISaleStorageContract> _saleStorageContract;
+    private Mock<IPostStorageContract> _postStorageContract;
+    private Mock<IWorkerStorageContract> _workerStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _salaryStorageContract = new Mock<ISalaryStorageContract>();
+        _saleStorageContract = new Mock<ISaleStorageContract>();
+        _postStorageContract = new Mock<IPostStorageContract>();
+        _workerStorageContract = new Mock<IWorkerStorageContract>();
+        _salaryBusinessLogicContract = new SalaryBusinessLogicContract(_salaryStorageContract.Object,
+            _saleStorageContract.Object, _postStorageContract.Object, _workerStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _salaryStorageContract.Reset();
+        _saleStorageContract.Reset();
+        _postStorageContract.Reset();
+        _workerStorageContract.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(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(1), 14),
+            new(Guid.NewGuid().ToString(), 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 GetAllSalariesByWorker_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var startDate = DateTime.UtcNow;
+        var endDate = DateTime.UtcNow.AddDays(1);
+        var workerId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SalaryDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(1), 14),
+            new(Guid.NewGuid().ToString(), 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.GetAllSalariesByPeriodByWorker(startDate, endDate, workerId);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _salaryStorageContract.Verify(x => x.GetList(startDate, endDate, workerId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalariesByWorker_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(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 GetAllSalariesByWorker_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var dateTime = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(dateTime, dateTime, Guid.NewGuid().ToString()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(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 GetAllSalariesByWorker_WorkerIdIsNUllOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(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 GetAllSalariesByWorker_WorkerIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), "workerId"), Throws.TypeOf<ValidationException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalariesByWorker_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(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 GetAllSalariesByWorker_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.GetAllSalariesByPeriodByWorker(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_WithSeveralWorkers_Test()
+    {
+        //Arrange
+        var worker1Id = Guid.NewGuid().ToString();
+        var worker2Id = Guid.NewGuid().ToString();
+        var worker3Id = Guid.NewGuid().ToString();
+        var list = new List<WorkerDataModel>() {
+            new(worker1Id, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+            new(worker2Id, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+            new(worker3Id, "Test", 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(), worker1Id, null, true, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), worker1Id, null, true, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), worker2Id, null, true, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), worker3Id, null, true, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), worker3Id, null, true, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Chef, 2000));
+        _workerStorageContract.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_WithoitSalesByWorker_Test()
+    {
+        //Arrange
+        var postSalary = 2000.0;
+        var workerId = 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.Chef, postSalary));
+        _workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        var sum = 0.0;
+        var expectedSum = 100;
+        _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 CalculateSalaryByMounth_SaleStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var workerId = Guid.NewGuid().ToString();
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Chef, 2000));
+        _workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+
+    [Test]
+    public void CalculateSalaryByMounth_WorkerStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var workerId = 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(), workerId, null, true, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Chef, 2000));
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_SaleStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var workerId = 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.Chef, 2000));
+        _workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_WorkerStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var workerId = 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(), workerId, null, true, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Chef, 2000));
+        _workerStorageContract.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>());
+    }
+}

AndDietCokeProject/AndDietCokeTests/BuisnessLogicsContractsTests/SaleBusinessLogicContractTests.cs

@@ -0,0 +1,502 @@
+using AndDietCokeBuisnessLogic.Implementations;
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeContracts.Enums;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Extensions.Logging;
+using System.Threading.Tasks;
+
+namespace AndDietCokeTests.BuisnessLogicsContractsTests;
+
+[TestFixture]
+internal class SaleBuisnessLogicContractTests
+{
+    private SaleBusinessLogicContract _saleBusinessLogicContract;
+    private Mock<ISaleStorageContract> _saleStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _saleStorageContract = new Mock<ISaleStorageContract>();
+        _saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _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, true, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, 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 GetAllSalesByWorkerByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var workerId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false,
+                [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, 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.GetAllSalesByWorkerByPeriod(workerId, 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), workerId, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByWorkerByPeriod_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.GetAllSalesByWorkerByPeriod(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 GetAllSalesByWorkerByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(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 GetAllSalesByWorkerByPeriod_WorkerIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(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 GetAllSalesByWorkerByPeriod_WorkerIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod("workerId", 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 GetAllSalesByWorkerByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(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 GetAllSalesByWorkerByPeriod_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.GetAllSalesByWorkerByPeriod(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 GetAllSalesByBuyerByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var buyerId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false,
+                [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, 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.GetAllSalesByBuyerByPeriod(buyerId, 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, buyerId, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByBuyerByPeriod_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.GetAllSalesByBuyerByPeriod(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 GetAllSalesByBuyerByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(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 GetAllSalesByBuyerByPeriod_BuyerIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(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 GetAllSalesByBuyerByPeriod_BuyerIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod("buyerId", 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 GetAllSalesByBuyerByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(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 GetAllSalesByBuyerByPeriod_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.GetAllSalesByBuyerByPeriod(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 GetAllSalesByDishByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var dishId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SaleDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false,
+                [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, true, 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.GetAllSalesByDishByPeriod(dishId, 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, dishId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalesByDishByPeriod_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.GetAllSalesByDishByPeriod(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 GetAllSalesByDishByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByDishByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByDishByPeriod(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 GetAllSalesByDishByPeriod_DishIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByDishByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByDishByPeriod(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 GetAllSalesByDishByPeriod_DishIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByDishByPeriod("dishId", 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 GetAllSalesByDishByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _saleBusinessLogicContract.GetAllSalesByDishByPeriod(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 GetAllSalesByDishByPeriod_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.GetAllSalesByDishByPeriod(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, true, false,
+                [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)]);
+        _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(), true, false, [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)]);
+        _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>()))
+            .Callback((SaleDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.WorkerId == record.WorkerId && x.BuyerId == record.BuyerId &&
+                    x.SaleDate == record.SaleDate && x.Sum == record.Sum && x.IsCancel == record.IsCancel && x.Dishes.Count == record.Dishes.Count &&
+                    x.Dishes.First().DishId == record.Dishes.First().DishId &&
+                    x.Dishes.First().Count == record.Dishes.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(), true, false, [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)])), 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(), true, 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(), true, false, [new OrderDishDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 20, 5)])), 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);
+    }
+}

AndDietCokeProject/AndDietCokeTests/BuisnessLogicsContractsTests/WorkerBusinessLogicContractTests.cs

@@ -0,0 +1,562 @@
+using AndDietCokeContracts.DataModels;
+using AndDietCokeContracts.Exceptions;
+using AndDietCokeContracts.StoragesContracts;
+using AndDietCokeBuisnessLogic.Implementations;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using Microsoft.Extensions.Logging;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AndDietCokeTests.BuisnessLogicsContractsTests;
+
+internal class WorkerBusinessLogicContractTests
+{
+    private WorkerBusinessLogicContract _workerBusinessLogicContract;
+    private Mock<IWorkerStorageContract> _workerStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _workerStorageContract = new Mock<IWorkerStorageContract>();
+        _workerBusinessLogicContract = new WorkerBusinessLogicContract(_workerStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _workerStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllWorkers_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<WorkerDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkers(true);
+        var list = _workerBusinessLogicContract.GetAllWorkers(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(true, null, null, null, null, null), Times.Once);
+        _workerStorageContract.Verify(x => x.GetList(false, null, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkers_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkers(true);
+        var list = _workerBusinessLogicContract.GetAllWorkers(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllWorkers_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkers(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _workerStorageContract.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 GetAllWorkers_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.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(() => _workerBusinessLogicContract.GetAllWorkers(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkersByPost_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var postId = Guid.NewGuid().ToString();
+        var listOriginal = new List<WorkerDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkersByPost(postId, true);
+        var list = _workerBusinessLogicContract.GetAllWorkersByPost(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(true, postId, null, null, null, null), Times.Once);
+        _workerStorageContract.Verify(x => x.GetList(false, postId, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkersByPost_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), true);
+        var list = _workerBusinessLogicContract.GetAllWorkersByPost(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));
+        });
+        _workerStorageContract.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 GetAllWorkersByPost_PostIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(null, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(string.Empty, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        _workerStorageContract.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 GetAllWorkersByPost_PostIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost("postId", It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
+        _workerStorageContract.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 GetAllWorkersByPost_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _workerStorageContract.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 GetAllWorkersByPost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.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(() => _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _workerStorageContract.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 GetAllWorkersByBirthDate_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<WorkerDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date.AddDays(1), true);
+        var list = _workerBusinessLogicContract.GetAllWorkersByBirthDate(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(true, null, date, date.AddDays(1), null, null), Times.Once);
+        _workerStorageContract.Verify(x => x.GetList(false, null, date, date.AddDays(1), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkersByBirthDate_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkersByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+        var list = _workerBusinessLogicContract.GetAllWorkers(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(true, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+        _workerStorageContract.Verify(x => x.GetList(false, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkersByBirthDate_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        _workerStorageContract.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 GetAllWorkersByBirthDate_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _workerStorageContract.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 GetAllWorkersByBirthDate_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.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(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _workerStorageContract.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 GetAllWorkersByEmploymentDate_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<WorkerDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date.AddDays(1), true);
+        var list = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(true, null, null, null, date, date.AddDays(1)), Times.Once);
+        _workerStorageContract.Verify(x => x.GetList(false, null, null, null, date, date.AddDays(1)), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkersByEmploymentDate_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _workerStorageContract.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 = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+        var list = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(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));
+        });
+        _workerStorageContract.Verify(x => x.GetList(true, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+        _workerStorageContract.Verify(x => x.GetList(false, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWorkersByEmploymentDate_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        _workerStorageContract.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 GetAllWorkersByEmploymentDate_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _workerStorageContract.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 GetAllWorkersByEmploymentDate_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.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(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _workerStorageContract.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 GetWorkerByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new WorkerDataModel(id, "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _workerStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _workerBusinessLogicContract.GetWorkerByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetWorkerByData_GetByFio_ReturnRecord_Test()
+    {
+        //Arrange
+        var fio = "fio";
+        var record = new WorkerDataModel(Guid.NewGuid().ToString(), fio, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _workerStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+        //Act
+        var element = _workerBusinessLogicContract.GetWorkerByData(fio);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.FIO, Is.EqualTo(fio));
+        _workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetWorkerByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetWorkerByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetWorkerByData_GetByFio_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetWorkerByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+        _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetWorkerByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _workerStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _workerBusinessLogicContract.GetWorkerByData("fio"), Throws.TypeOf<StorageException>());
+        _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertWorker_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new WorkerDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _workerStorageContract.Setup(x => x.AddElement(It.IsAny<WorkerDataModel>()))
+            .Callback((WorkerDataModel 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
+        _workerBusinessLogicContract.InsertWorker(record);
+        //Assert
+        _workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertWorker_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.Setup(x => x.AddElement(It.IsAny<WorkerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.InsertWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementExistsException>());
+        _workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertWorker_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.InsertWorker(null), Throws.TypeOf<ArgumentNullException>());
+        _workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertWorker_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.InsertWorker(new WorkerDataModel("id", "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+        _workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertWorker_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.Setup(x => x.AddElement(It.IsAny<WorkerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.InsertWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+        _workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateWorker_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new WorkerDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _workerStorageContract.Setup(x => x.UpdElement(It.IsAny<WorkerDataModel>()))
+            .Callback((WorkerDataModel 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
+        _workerBusinessLogicContract.UpdateWorker(record);
+        //Assert
+        _workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateWorker_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.Setup(x => x.UpdElement(It.IsAny<WorkerDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.UpdateWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementNotFoundException>());
+        _workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateWorker_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.UpdateWorker(null), Throws.TypeOf<ArgumentNullException>());
+        _workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateWorker_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.UpdateWorker(new WorkerDataModel("id", "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+        _workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateWorker_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.Setup(x => x.UpdElement(It.IsAny<WorkerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.UpdateWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+        _workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteWorker_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _workerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _workerBusinessLogicContract.DeleteWorker(id);
+        //Assert
+        _workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteWorker_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _workerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x != id))).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.DeleteWorker(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteWorker_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.DeleteWorker(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _workerBusinessLogicContract.DeleteWorker(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteWorker_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.DeleteWorker("id"), Throws.TypeOf<ValidationException>());
+        _workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteWorker_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _workerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _workerBusinessLogicContract.DeleteWorker(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}