вроде доделал тесты адаптера

This reverts commit 4e3fd46750.

SquirrelContract/SquirrelBusinessLogic/Implementations/ClientBusinessLogicContract.cs

@@ -9,7 +9,7 @@ using SquirrelContract.DataModels;
 
 namespace SquirrelBusinessLogic.Implementations;
 
-internal class ClientBusinessLogicContract(IClientStorageContract clientStorageContract, ILogger logger) : IClientBusinessLogicContract
+public class ClientBusinessLogicContract(IClientStorageContract clientStorageContract, ILogger logger) : IClientBusinessLogicContract
 {
     private readonly ILogger _logger = logger;
     private readonly IClientStorageContract _clientStorageContract = clientStorageContract;

SquirrelContract/SquirrelBusinessLogic/Implementations/CocktailBusinessLogicContract.cs

@@ -9,7 +9,7 @@ using System.Text.RegularExpressions;
 
 namespace SquirrelBusinessLogic.Implementations;
 
-internal class CocktailBusinessLogicContract(ICocktailStorageContract cocktailStorageContract, ILogger logger) : ICocktailBusinessLogicContract
+public class CocktailBusinessLogicContract(ICocktailStorageContract cocktailStorageContract, ILogger logger) : ICocktailBusinessLogicContract
 {
     private readonly ILogger _logger = logger;
     private readonly ICocktailStorageContract _cocktailStorageContract = cocktailStorageContract;

SquirrelContract/SquirrelBusinessLogic/Implementations/EmployeeBusinessLogicContract.cs

@@ -9,7 +9,7 @@ using System.Text.RegularExpressions;
 
 namespace SquirrelBusinessLogic.Implementations;
 
-internal class EmployeeBusinessLogicContract(IEmployeeStorageContract employeeStorageContract, ILogger logger) : IEmployeeBusinessLogicContract
+public class EmployeeBusinessLogicContract(IEmployeeStorageContract employeeStorageContract, ILogger logger) : IEmployeeBusinessLogicContract
 {
     private readonly ILogger _logger = logger;
     private readonly IEmployeeStorageContract _employeeStorageContract = employeeStorageContract;

SquirrelContract/SquirrelBusinessLogic/Implementations/PostBusinessLogicContract.cs

@@ -8,14 +8,14 @@ using System.Text.Json;
 
 namespace SquirrelBusinessLogic.Implementations;
 
-internal class PostBusinessLogicContract(IPostStorageContract postStorageContract, ILogger logger) : IPostBusinessLogicContract
+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)
+    public List<PostDataModel> GetAllPosts()
     {
-        _logger.LogInformation("GetAllPosts params: {onlyActive}", onlyActive);
-        return _postStorageContract.GetList(onlyActive) ?? throw new NullListException();
+        _logger.LogInformation("GetAllPosts");
+        return _postStorageContract.GetList() ?? throw new NullListException();
     }
 
     public List<PostDataModel> GetAllDataOfPost(string postId)

SquirrelContract/SquirrelBusinessLogic/Implementations/SalaryBusinessLogicContract.cs

@@ -7,7 +7,7 @@ using SquirrelContract.StoragesContracts;
 
 namespace SquirrelBusinessLogic.Implementations;
 
-internal class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,
+public class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,
     ISaleStorageContract saleStorageContract, IPostStorageContract postStorageContract, IEmployeeStorageContract employeeStorageContract, ILogger logger) : ISalaryBusinessLogicContract
 {
     private readonly ILogger _logger = logger;
@@ -57,7 +57,7 @@ internal class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageC
                 throw new NullListException();
             var salary = post.Salary + sales * 0.1;
             _logger.LogDebug("The employee {employeeId} was paid a salary of {salary}", employee.Id, salary);
-            _salaryStorageContract.AddElement(new SalaryDataModel(employee.Id, finishDate, salary));
+            _salaryStorageContract.AddElement(new SalaryDataModel(employee.Id, DateTime.SpecifyKind(finishDate, DateTimeKind.Utc), salary));
         }
     }
 }

SquirrelContract/SquirrelBusinessLogic/Implementations/SaleBusinessLogicContract.cs

@@ -8,11 +8,11 @@ using System.Text.Json;
 
 namespace SquirrelBusinessLogic.Implementations;
 
-internal class SaleBusinessLogicContract(ISaleStorageContract
-saleStorageContract, ILogger logger) : ISaleBusinessLogicContract
+public class SaleBusinessLogicContract(ISaleStorageContract saleStorageContract, IWarehouseStorageContract warehouseStorageContract, ILogger logger) : ISaleBusinessLogicContract
 {
     private readonly ILogger _logger = logger;
     private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+    private readonly IWarehouseStorageContract _warehouseStorageContract = warehouseStorageContract;
 
     public List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate)
     {
@@ -97,6 +97,10 @@ saleStorageContract, ILogger logger) : ISaleBusinessLogicContract
         _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(saleDataModel));
         ArgumentNullException.ThrowIfNull(saleDataModel);
         saleDataModel.Validate();
+        if (!_warehouseStorageContract.CheckCocktails(saleDataModel))
+        {
+            throw new InsufficientStockException("Dont have cocktails in warehouse");
+        }
         _saleStorageContract.AddElement(saleDataModel);
     }
 

SquirrelContract/SquirrelBusinessLogic/Implementations/SupplyBusinessLogicContract.cs

@@ -0,0 +1,103 @@
+using Microsoft.Extensions.Logging;
+using SquirrelContract.BusinessLogicContracts;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.StoragesContracts;
+using System.Text.Json;
+
+namespace SquirrelBusinessLogic.Implementations;
+
+public class SupplyBusinessLogicContract(ISupplyStorageContract supplyStorageContract, IWarehouseStorageContract warehouseStorageContract, ILogger logger) : ISupplyBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly ISupplyStorageContract _supplyStorageContract = supplyStorageContract;
+    private readonly IWarehouseStorageContract _warehouseStorageContract = warehouseStorageContract;
+    public List<SupplyDataModel> GetAllSuppliesByPeriod(DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSupplies params: {fromDate}, {toDate}", fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _supplyStorageContract.GetList(fromDate, toDate) ?? throw new NullListException();
+    }
+
+    public List<SupplyDataModel> GetAllSuppliesByCocktailByPeriod(string cocktailId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSupplies params: {cocktailId}, {fromDate}, {toDate}", cocktailId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (cocktailId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(cocktailId));
+        }
+        if (!cocktailId.IsGuid())
+        {
+            throw new ValidationException("The value in the field cocktailId is not a unique identifier.");
+        }
+        return _supplyStorageContract.GetList(fromDate, toDate, cocktailId: cocktailId) ?? throw new NullListException();
+    }
+
+    public SupplyDataModel GetSupplyByData(string data)
+    {
+        _logger.LogInformation("Get supply by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (!data.IsGuid())
+        {
+            throw new ElementNotFoundException(data);
+        }
+        return _supplyStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void ProcessSupply(SupplyDataModel supplyDataModel)
+    {
+        _logger.LogInformation("Processing supply: {json}", JsonSerializer.Serialize(supplyDataModel));
+
+        ArgumentNullException.ThrowIfNull(supplyDataModel);
+        supplyDataModel.Validate();
+
+        foreach (var supplyCocktail in supplyDataModel.Cocktails)
+        {
+            var warehouses = _warehouseStorageContract.GetList();
+
+            var targetWarehouse = warehouses.FirstOrDefault(w =>
+                w.Cocktails.Any(c => c.CocktailId == supplyCocktail.CocktailId));
+
+            if (targetWarehouse == null)
+            {
+                targetWarehouse = warehouses.FirstOrDefault();
+                if (targetWarehouse == null)
+                {
+                    throw new ElementNotFoundException("No warehouse found for supply.");
+                }
+            }
+
+            _warehouseStorageContract.UpdWarehouseOnSupply(targetWarehouse.Id, supplyCocktail.CocktailId, supplyCocktail.Count);
+        }
+    }
+
+    public void InsertSupply(SupplyDataModel supplyDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(supplyDataModel));
+        ArgumentNullException.ThrowIfNull(supplyDataModel);
+        supplyDataModel.Validate();
+        _supplyStorageContract.AddElement(supplyDataModel);
+        ProcessSupply(supplyDataModel);
+    }
+
+    public void UpdateSupply(SupplyDataModel supplyDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(supplyDataModel));
+        ArgumentNullException.ThrowIfNull(supplyDataModel);
+        supplyDataModel.Validate();
+        _supplyStorageContract.UpdateElement(supplyDataModel);
+        ProcessSupply(supplyDataModel);
+    }
+
+}

SquirrelContract/SquirrelBusinessLogic/Implementations/WarehouseBusinessLogicContract.cs

@@ -0,0 +1,65 @@
+using Microsoft.Extensions.Logging;
+using SquirrelContract.BusinessLogicContracts;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.StoragesContracts;
+using System.Text.Json;
+
+namespace SquirrelBusinessLogic.Implementations;
+
+public class WarehouseBusinessLogicContract(IWarehouseStorageContract warehouseStorageContract, ILogger logger) : IWarehouseBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IWarehouseStorageContract _warehouseStorageContract = warehouseStorageContract;
+    public List<WarehouseDataModel> GetAllWarehouses()
+    {
+        _logger.LogInformation("GetAllWarehouses");
+        return _warehouseStorageContract.GetList() ?? throw new NullListException();
+    }
+
+    public WarehouseDataModel GetWarehouseByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _warehouseStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+        }
+        return _warehouseStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
+
+    }
+
+    public void InsertWarehouse(WarehouseDataModel warehouseDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(warehouseDataModel));
+        ArgumentNullException.ThrowIfNull(warehouseDataModel);
+        warehouseDataModel.Validate();
+        _warehouseStorageContract.AddElement(warehouseDataModel);
+    }
+
+    public void UpdateWarehouse(WarehouseDataModel warehouseDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(warehouseDataModel));
+        ArgumentNullException.ThrowIfNull(warehouseDataModel);
+        warehouseDataModel.Validate();
+        _warehouseStorageContract.UpdElement(warehouseDataModel);
+    }
+
+    public void DeleteWarehouse(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");
+        }
+        _warehouseStorageContract.DelElement(id);
+    }
+}

SquirrelContract/SquirrelContract.sln

@@ -9,6 +9,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SquirrelTests", "SquirrelTe
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SquirrelBusinessLogic", "SquirrelBusinessLogic\SquirrelBusinessLogic.csproj", "{C03D0604-CD06-42DA-99CB-23B8306C3714}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SquirrelDatabase", "SquirrelDatabase\SquirrelDatabase.csproj", "{A8A7A434-A278-4362-8D34-C2E3CAA938C1}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SquirrelWebApi", "SquirrelWebApi\SquirrelWebApi.csproj", "{45D1F24F-AFCD-4259-88C2-3076E38254A9}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -27,8 +31,19 @@ Global
 		{C03D0604-CD06-42DA-99CB-23B8306C3714}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C03D0604-CD06-42DA-99CB-23B8306C3714}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C03D0604-CD06-42DA-99CB-23B8306C3714}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A8A7A434-A278-4362-8D34-C2E3CAA938C1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A8A7A434-A278-4362-8D34-C2E3CAA938C1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A8A7A434-A278-4362-8D34-C2E3CAA938C1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A8A7A434-A278-4362-8D34-C2E3CAA938C1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{45D1F24F-AFCD-4259-88C2-3076E38254A9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{45D1F24F-AFCD-4259-88C2-3076E38254A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{45D1F24F-AFCD-4259-88C2-3076E38254A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{45D1F24F-AFCD-4259-88C2-3076E38254A9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {E3B65E92-8603-4ED7-8214-9DA9A305DAFF}
+	EndGlobalSection
 EndGlobal

SquirrelContract/SquirrelContract/AdapterContracts/IClientAdapter.cs

@@ -0,0 +1,16 @@
+namespace SquirrelContract.AdapterContracts;
+using SquirrelContract.AdapterContracts.OperationResponses;
+using SquirrelContract.BindingModels;
+
+public interface IClientAdapter
+{
+    ClientOperationResponse GetList();
+
+    ClientOperationResponse GetElement(string data);
+
+    ClientOperationResponse RegisterClient(ClientBindingModel clientModel);
+
+    ClientOperationResponse ChangeClientInfo(ClientBindingModel clientModel);
+
+    ClientOperationResponse RemoveClient(string id);
+}

SquirrelContract/SquirrelContract/AdapterContracts/ICocktailAdapter.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.BindingModels;
+using SquirrelContract.AdapterContracts.OperationResponses;
+
+namespace SquirrelContract.AdapterContracts;
+
+public interface ICocktailAdapter
+{
+    CocktailOperationResponse GetList(bool includeDeleted);
+
+    CocktailOperationResponse GetHistory(string id);
+
+    CocktailOperationResponse GetElement(string data);
+
+    CocktailOperationResponse RegisterCocktail(CocktailBindingModel cocktailModel);
+
+    CocktailOperationResponse ChangeCocktailInfo(CocktailBindingModel cocktailModel);
+
+    CocktailOperationResponse RemoveCocktail(string id);
+}

SquirrelContract/SquirrelContract/AdapterContracts/IEmployeeAdapter.cs

@@ -0,0 +1,23 @@
+using SquirrelContract.AdapterContracts.OperationResponses;
+using SquirrelContract.BindingModels;
+
+namespace SquirrelContract.AdapterContracts;
+
+public interface IEmployeeAdapter
+{
+    EmployeeOperationResponse GetList(bool includeDeleted);
+
+    EmployeeOperationResponse GetPostList(string id, bool includeDeleted);
+
+    EmployeeOperationResponse GetListByBirthDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+    EmployeeOperationResponse GetListByEmploymentDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+    EmployeeOperationResponse GetElement(string data);
+
+    EmployeeOperationResponse RegisterEmployee(EmployeeBindingModel employeeModel);
+
+    EmployeeOperationResponse ChangeEmployeeInfo(EmployeeBindingModel employeeModel);
+
+    EmployeeOperationResponse RemoveEmployee(string id);
+}

SquirrelContract/SquirrelContract/AdapterContracts/IPostAdapter.cs

@@ -0,0 +1,21 @@
+using SquirrelContract.AdapterContracts.OperationResponses;
+using SquirrelContract.BindingModels;
+
+namespace SquirrelContract.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);
+}

SquirrelContract/SquirrelContract/AdapterContracts/ISalaryAdapter.cs

@@ -0,0 +1,10 @@
+using SquirrelContract.AdapterContracts.OperationResponses;
+
+namespace SquirrelContract.AdapterContracts;
+
+public interface ISalaryAdapter
+{
+    SalaryOperationResponse GetListByPeriod(DateTime fromDate, DateTime toDate);
+    SalaryOperationResponse GetListByPeriodByEmployee(DateTime fromDate, DateTime toDate, string employeeId);
+    SalaryOperationResponse CalculateSalary(DateTime date);
+}

SquirrelContract/SquirrelContract/AdapterContracts/ISaleAdapter.cs

@@ -0,0 +1,21 @@
+using SquirrelContract.AdapterContracts.OperationResponses;
+using SquirrelContract.BindingModels;
+
+namespace SquirrelContract.AdapterContracts;
+
+public interface ISaleAdapter
+{
+    SaleOperationResponse GetList(DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetEmployeeList(string id, DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetClientList(string id, DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetCocktailList(string id, DateTime fromDate, DateTime toDate);
+
+    SaleOperationResponse GetElement(string id);
+
+    SaleOperationResponse MakeSale(SaleBindingModel saleModel);
+
+    SaleOperationResponse CancelSale(string id);
+}

SquirrelContract/SquirrelContract/AdapterContracts/ISupplyAdapter.cs

@@ -0,0 +1,15 @@
+using SquirrelContract.BindingModels;
+using SquirrelContract.AdapterContracts.OperationResponses;
+using SquirrelContract.DataModels;
+
+namespace SquirrelContract.AdapterContracts;
+
+public interface ISupplyAdapter
+{
+    SupplyOperationResponse GetAllSuppliesByPeriod(DateTime fromDate, DateTime toDate);
+
+    SupplyOperationResponse GetCocktailList(string id, DateTime fromDate, DateTime toDate);
+    SupplyOperationResponse GetSupplyByData(string data);
+    SupplyOperationResponse InsertSupply(SupplyBindingModel supplyDataModel);
+    SupplyOperationResponse UpdateSupply(SupplyBindingModel supplyDataModel);
+}

SquirrelContract/SquirrelContract/AdapterContracts/IWarehouseAdapter.cs

@@ -0,0 +1,13 @@
+using SquirrelContract.AdapterContracts.OperationResponses;
+using SquirrelContract.BindingModels;
+
+namespace SquirrelContract.AdapterContracts;
+
+public interface IWarehouseAdapter
+{
+    WarehouseOperationResponse GetAllWarehouses();
+    WarehouseOperationResponse GetWarehouseByData(string data);
+    WarehouseOperationResponse InsertWarehouse(WarehouseBindingModel warehouseDataModel);
+    WarehouseOperationResponse UpdateWarehouse(WarehouseBindingModel warehouseDataModel);
+    WarehouseOperationResponse DeleteWarehouse(string id);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/ClientOperationResponse.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.ViewModels;
+using SquirrelContract.Infrastructure;
+
+namespace SquirrelContract.AdapterContracts.OperationResponses;
+
+public class ClientOperationResponse : OperationResponse
+{
+    public static ClientOperationResponse OK(List<ClientViewModel> data) => OK<ClientOperationResponse, List<ClientViewModel>>(data);
+
+    public static ClientOperationResponse OK(ClientViewModel data) => OK<ClientOperationResponse, ClientViewModel>(data);
+
+    public static ClientOperationResponse NoContent() => NoContent<ClientOperationResponse>();
+
+    public static ClientOperationResponse BadRequest(string message) => BadRequest<ClientOperationResponse>(message);
+
+    public static ClientOperationResponse NotFound(string message) => NotFound<ClientOperationResponse>(message);
+
+    public static ClientOperationResponse InternalServerError(string message) => InternalServerError<ClientOperationResponse>(message);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/CocktailOperationResponse.cs

@@ -0,0 +1,21 @@
+using SquirrelContract.ViewModels;
+using SquirrelContract.Infrastructure;
+
+namespace SquirrelContract.AdapterContracts.OperationResponses;
+
+public class CocktailOperationResponse : OperationResponse
+{
+    public static CocktailOperationResponse OK(List<CocktailViewModel> data) => OK<CocktailOperationResponse, List<CocktailViewModel>>(data);
+
+    public static CocktailOperationResponse OK(List<CocktailHistoryViewModel> data) => OK<CocktailOperationResponse, List<CocktailHistoryViewModel>>(data);
+
+    public static CocktailOperationResponse OK(CocktailViewModel data) => OK<CocktailOperationResponse, CocktailViewModel>(data);
+
+    public static CocktailOperationResponse NoContent() => NoContent<CocktailOperationResponse>();
+
+    public static CocktailOperationResponse NotFound(string message) => NotFound<CocktailOperationResponse>(message);
+
+    public static CocktailOperationResponse BadRequest(string message) => BadRequest<CocktailOperationResponse>(message);
+
+    public static CocktailOperationResponse InternalServerError(string message) => InternalServerError<CocktailOperationResponse>(message);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/EmployeeOperationResponse.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.ViewModels;
+using SquirrelContract.Infrastructure;
+
+namespace SquirrelContract.AdapterContracts.OperationResponses;
+
+public class EmployeeOperationResponse : OperationResponse
+{
+    public static EmployeeOperationResponse OK(List<EmployeeViewModel> data) => OK<EmployeeOperationResponse, List<EmployeeViewModel>>(data);
+
+    public static EmployeeOperationResponse OK(EmployeeViewModel data) => OK<EmployeeOperationResponse, EmployeeViewModel>(data);
+
+    public static EmployeeOperationResponse NoContent() => NoContent<EmployeeOperationResponse>();
+
+    public static EmployeeOperationResponse NotFound(string message) => NotFound<EmployeeOperationResponse>(message);
+
+    public static EmployeeOperationResponse BadRequest(string message) => BadRequest<EmployeeOperationResponse>(message);
+
+    public static EmployeeOperationResponse InternalServerError(string message) => InternalServerError<EmployeeOperationResponse>(message);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/PostOperationResponse.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.Infrastructure;
+using SquirrelContract.ViewModels;
+
+namespace SquirrelContract.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);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/SalaryOperationResponse.cs

@@ -0,0 +1,13 @@
+using SquirrelContract.Infrastructure;
+using SquirrelContract.ViewModels;
+
+namespace SquirrelContract.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);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/SaleOperationResponse.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.ViewModels;
+using SquirrelContract.Infrastructure;
+
+namespace SquirrelContract.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);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/SupplyOperationResponse.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.Infrastructure;
+using SquirrelContract.ViewModels;
+
+namespace SquirrelContract.AdapterContracts.OperationResponses;
+
+public class SupplyOperationResponse : OperationResponse
+{
+    public static SupplyOperationResponse OK(List<SupplyViewModel> data) => OK<SupplyOperationResponse, List<SupplyViewModel>>(data);
+
+    public static SupplyOperationResponse OK(SupplyViewModel data) => OK<SupplyOperationResponse, SupplyViewModel>(data);
+
+    public static SupplyOperationResponse NoContent() => NoContent<SupplyOperationResponse>();
+
+    public static SupplyOperationResponse NotFound(string message) => NotFound<SupplyOperationResponse>(message);
+
+    public static SupplyOperationResponse BadRequest(string message) => BadRequest<SupplyOperationResponse>(message);
+
+    public static SupplyOperationResponse InternalServerError(string message) => InternalServerError<SupplyOperationResponse>(message);
+}

SquirrelContract/SquirrelContract/AdapterContracts/OperationResponses/WarehouseOperationResponse.cs

@@ -0,0 +1,19 @@
+using SquirrelContract.Infrastructure;
+using SquirrelContract.ViewModels;
+
+namespace SquirrelContract.AdapterContracts.OperationResponses;
+
+public class WarehouseOperationResponse : OperationResponse
+{
+    public static WarehouseOperationResponse OK(List<WarehouseViewModel> data) => OK<WarehouseOperationResponse, List<WarehouseViewModel>>(data);
+
+    public static WarehouseOperationResponse OK(WarehouseViewModel data) => OK<WarehouseOperationResponse, WarehouseViewModel>(data);
+
+    public static WarehouseOperationResponse NoContent() => NoContent<WarehouseOperationResponse>();
+
+    public static WarehouseOperationResponse NotFound(string message) => NotFound<WarehouseOperationResponse>(message);
+
+    public static WarehouseOperationResponse BadRequest(string message) => BadRequest<WarehouseOperationResponse>(message);
+
+    public static WarehouseOperationResponse InternalServerError(string message) => InternalServerError<WarehouseOperationResponse>(message);
+}

SquirrelContract/SquirrelContract/BindingModels/ClientBindingModel.cs

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

SquirrelContract/SquirrelContract/BindingModels/CocktailBindingModel.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.BindingModels;
+
+public class CocktailBindingModel
+{
+    public string? Id { get; set; }
+    public string? CocktailName { get; set; }
+    public double Price { get; set; }
+    public string? BaseAlcohol { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/EmployeeBindingModel.cs

@@ -0,0 +1,16 @@
+namespace SquirrelContract.BindingModels;
+
+public class EmployeeBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? FIO { get; set; }
+
+    public string? Email { get; set; } 
+
+    public string? PostId { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/PostBindingModel.cs

@@ -0,0 +1,14 @@
+namespace SquirrelContract.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; }
+}

SquirrelContract/SquirrelContract/BindingModels/SaleBindingModel.cs

@@ -0,0 +1,14 @@
+namespace SquirrelContract.BindingModels;
+
+public class SaleBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? EmployeeId { get; set; }
+
+    public string? ClientId { get; set; }
+
+    public int DiscountType { get; set; }
+
+    public List<SaleCocktailBindingModel>? Cocktails { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/SaleCocktailBindingModel.cs

@@ -0,0 +1,12 @@
+namespace SquirrelContract.BindingModels;
+
+public class SaleCocktailBindingModel
+{
+    public string? SaleId { get; set; }
+
+    public string? CocktailId { get; set; }
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/SupplyBindingModel.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.BindingModels;
+
+public class SupplyBindingModel
+{
+    public string? Id { get; set; }
+    public DateTime SupplyDate { get; set; }
+    public int Count { get; set; }
+    public List<SupplyCocktailBindingModel>? Cocktails { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/SupplyCocktailBindingModel.cs

@@ -0,0 +1,8 @@
+namespace SquirrelContract.BindingModels;
+
+public class SupplyCocktailBindingModel
+{
+    public string? SupplyId { get; set; }
+    public string? CocktailId { get; set; }
+    public int Count { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/WarehouseBindingModel.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.BindingModels;
+
+public class WarehouseBindingModel
+{
+    public string? Id { get; set; }
+    public string? Name { get; set; }
+    public int Count { get; set; }
+    public List<WarehouseCocktailBindingModel>? Cocktails { get; set; }
+}

SquirrelContract/SquirrelContract/BindingModels/WarehouseCocktailBindingModel.cs

@@ -0,0 +1,8 @@
+namespace SquirrelContract.BindingModels;
+
+public class WarehouseCocktailBindingModel
+{
+    public string? WarehouseId { get; set; }
+    public string? CocktailId { get; set; }
+    public int Count { get; set; }
+}

SquirrelContract/SquirrelContract/BusinessLogicContracts/IPostBusinessLogicContract.cs

@@ -4,7 +4,7 @@ namespace SquirrelContract.BusinessLogicContracts;
 
 public interface IPostBusinessLogicContract
 {
-    List<PostDataModel> GetAllPosts(bool onlyActive);
+    List<PostDataModel> GetAllPosts();
 
     List<PostDataModel> GetAllDataOfPost(string postId);
 

SquirrelContract/SquirrelContract/BusinessLogicContracts/ISupplyBusinessLogicContract.cs

@@ -0,0 +1,17 @@
+using SquirrelContract.DataModels;
+
+namespace SquirrelContract.BusinessLogicContracts;
+
+public interface ISupplyBusinessLogicContract
+{
+    List<SupplyDataModel> GetAllSuppliesByPeriod(DateTime fromDate, DateTime toDate);
+
+    List<SupplyDataModel> GetAllSuppliesByCocktailByPeriod(string cocktailId, DateTime fromDate, DateTime toDate);
+
+    SupplyDataModel GetSupplyByData(string data);
+
+    void InsertSupply(SupplyDataModel supplyDataModel);
+
+    void UpdateSupply(SupplyDataModel supplyDataModel);
+
+}

SquirrelContract/SquirrelContract/BusinessLogicContracts/IWarehouseBusinessLogicContract.cs

@@ -0,0 +1,16 @@
+using SquirrelContract.DataModels;
+
+namespace SquirrelContract.BusinessLogicContracts;
+
+public interface IWarehouseBusinessLogicContract
+{
+    List<WarehouseDataModel> GetAllWarehouses();
+
+    WarehouseDataModel GetWarehouseByData(string data);
+
+    void InsertWarehouse(WarehouseDataModel cocktailDataModel);
+
+    void UpdateWarehouse(WarehouseDataModel cocktailDataModel);
+
+    void DeleteWarehouse(string id);
+}

SquirrelContract/SquirrelContract/DataModels/CocktailHistoryDataModel.cs

@@ -6,12 +6,22 @@ namespace SquirrelContract.DataModels;
 
 public class CocktailHistoryDataModel(string cocktailId, double oldPrice) : IValidation
 {
+    private readonly CocktailDataModel? _cocktail;
+
     public string CocktailId { get; private set; } = cocktailId;
 
     public double OldPrice { get; private set; } = oldPrice;
 
     public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
 
+    public string CocktailName => _cocktail?.CocktailName ?? string.Empty;
+
+    public CocktailHistoryDataModel(string cocktailId, double oldPrice, DateTime changeDate, CocktailDataModel cocktail) : this(cocktailId, oldPrice)
+    {
+        ChangeDate = changeDate;
+        _cocktail = cocktail;
+    }
+
     public void Validate()
     {
         if (CocktailId.IsEmpty())

SquirrelContract/SquirrelContract/DataModels/EmployeeDataModel.cs

@@ -7,6 +7,8 @@ namespace SquirrelContract.DataModels;
 
 public class EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
 {
+    private readonly PostDataModel? _post;
+
     public string Id { get; private set; } = id;
 
     public string FIO { get; private set; } = fio;
@@ -21,6 +23,15 @@ public class EmployeeDataModel(string id, string fio, string email, string postI
 
     public bool IsDeleted { get; private set; } = isDeleted;
 
+    public string PostName => _post?.PostName ?? string.Empty;
+
+    public EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted, PostDataModel post) : this(id, fio, email, postId, birthDate, employmentDate, isDeleted)
+    {
+        _post = post;
+    }
+
+    public EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate) : this(id, fio, email, postId, birthDate, employmentDate, false) { }
+
     public void Validate()
     {
         if (Id.IsEmpty())

SquirrelContract/SquirrelContract/DataModels/PostDataModel.cs

@@ -5,9 +5,9 @@ using SquirrelContract.Infastructure;
 
 namespace SquirrelContract.DataModels;
 
-public class PostDataModel(string id, string postName, PostType postType, double salary, bool isActual, DateTime changeDate) : IValidation
+public class PostDataModel(string postId, string postName, PostType postType, double salary) : IValidation
 {
-    public string Id { get; private set; } = id;
+    public string Id { get; private set; } = postId;
 
     public string PostName { get; private set; } = postName;
 
@@ -15,10 +15,6 @@ public class PostDataModel(string id, string postName, PostType postType, double
 
     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())

SquirrelContract/SquirrelContract/DataModels/SalaryDataModel.cs

@@ -1,4 +1,5 @@
-using SquirrelContract.Exceptions;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
 using SquirrelContract.Extensions;
 using SquirrelContract.Infastructure;
 
@@ -6,12 +7,21 @@ namespace BarBelochkaContract.DataModels;
 
 public class SalaryDataModel(string employeeId, DateTime salaryDate, double employeeSalary) : IValidation
 {
+    private readonly EmployeeDataModel? _employee;
+
     public string EmployeeId { get; private set; } = employeeId;
 
     public DateTime SalaryDate { get; private set; } = salaryDate;
 
     public double Salary { get; private set; } = employeeSalary;
 
+    public string EmployeeFIO => _employee?.FIO ?? string.Empty;
+
+    public SalaryDataModel(string employeeId, DateTime salaryDate, double employeeSalary, EmployeeDataModel employee) : this(employeeId, salaryDate, employeeSalary)
+    {
+        _employee = employee;
+    }
+
     public void Validate()
     {
         if (EmployeeId.IsEmpty())

SquirrelContract/SquirrelContract/DataModels/SaleCocktailDataModel.cs

@@ -4,14 +4,25 @@ using SquirrelContract.Infastructure;
 
 namespace SquirrelContract.DataModels;
 
-public class SaleCocktailDataModel(string saleId, string cocktailId, int count) : IValidation
+public class SaleCocktailDataModel(string saleId, string cocktailId, int count, double price) : IValidation
 {
+    private readonly CocktailDataModel? _cocktail;
+
     public string SaleId { get; private set; } = saleId;
 
     public string CocktailId { get; private set; } = cocktailId;
 
     public int Count { get; private set; } = count;
 
+    public double Price { get; private set; } = price;
+
+    public string CocktailName => _cocktail?.CocktailName ?? string.Empty;
+
+    public SaleCocktailDataModel(string saleId, string cocktailId, int count, double price, CocktailDataModel cocktail) : this(saleId, cocktailId, count, price)
+    {
+        _cocktail = cocktail;
+    }
+
     public void Validate()
     {
         if (SaleId.IsEmpty())
@@ -21,12 +32,15 @@ public class SaleCocktailDataModel(string saleId, string cocktailId, int count)
             throw new ValidationException("The value in the field SaleId is not a unique identifier");
 
         if (CocktailId.IsEmpty())
-            throw new ValidationException("Field ProductId is empty");
+            throw new ValidationException("Field CocktailId is empty");
 
         if (!CocktailId.IsGuid())
-            throw new ValidationException("The value in the field ProductId is not a unique identifier");
+            throw new ValidationException("The value in the field CocktailId is not a unique identifier");
 
         if (Count <= 0)
             throw new ValidationException("Field Count is less than or equal to 0");
+
+        if (Price <= 0)
+            throw new ValidationException("Field Price is less than or equal to 0");
     }
 }

SquirrelContract/SquirrelContract/DataModels/SaleDataModel.cs

@@ -5,25 +5,76 @@ using SquirrelContract.Infastructure;
 
 namespace SquirrelContract.DataModels;
 
-public class SaleDataModel(string id, string employeeId, string? clientId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleCocktailDataModel> cocktails) : IValidation
+public class SaleDataModel : IValidation
 {
-    public string Id { get; private set; } = id;
+    private readonly ClientDataModel? _client;
 
-    public string EmployeeId { get; private set; } = employeeId;
+    private readonly EmployeeDataModel? _employee;
 
-    public string? ClientId { get; private set; } = clientId;
+    public string Id { get; private set; }
+
+    public string EmployeeId { get; private set; }
+
+    public string? ClientId { get; private set; }
 
     public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
 
-    public double Sum { get; private set; } = sum;
+    public double Sum { get; private set; }
 
-    public DiscountType DiscountType { get; private set; } = discountType;
+    public DiscountType DiscountType { get; private set; }
 
-    public double Discount { get; private set; } = discount;
+    public double Discount { get; private set; }
 
-    public bool IsCancel { get; private set; } = isCancel;
+    public bool IsCancel { get; private set; }
 
-    public List<SaleCocktailDataModel> Cocktails { get; private set; } = cocktails;
+    public List<SaleCocktailDataModel>? Cocktails { get; private set; }
+
+    public string ClientFIO => _client?.FIO ?? string.Empty;
+
+    public string EmployeeFIO => _employee?.FIO ?? string.Empty;
+
+    public SaleDataModel(string id, string employeeId, string? clientId, DiscountType discountType, bool isCancel, List<SaleCocktailDataModel> saleCocktails)
+    {
+        Id = id;
+        EmployeeId = employeeId;
+        ClientId = clientId;
+        DiscountType = discountType;
+        IsCancel = isCancel;
+        Cocktails = saleCocktails;
+        var percent = 0.0;
+        foreach (DiscountType elem in Enum.GetValues<DiscountType>())
+        {
+            if ((elem & discountType) != 0)
+            {
+                switch (elem)
+                {
+                    case DiscountType.None:
+                        break;
+                    case DiscountType.OnSale:
+                        percent += 0.1;
+                        break;
+                    case DiscountType.RegularCustomer:
+                        percent += 0.5;
+                        break;
+                    case DiscountType.Certificate:
+                        percent += 0.3;
+                        break;
+                }
+            }
+        }
+        Sum = Cocktails?.Sum(x => x.Price * x.Count) ?? 0;
+        Discount = Sum * percent;
+    }
+
+    public SaleDataModel(string id, string employeeId, string? clientId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleCocktailDataModel> saleCocktails, EmployeeDataModel employee, ClientDataModel? client) : this(id, employeeId, clientId, discountType, isCancel, saleCocktails)
+    {
+        Sum = sum;
+        Discount = discount;
+        _employee = employee;
+        _client = client;
+    }
+
+    public SaleDataModel(string id, string employeeId, string? clientId, int discountType, List<SaleCocktailDataModel> cocktails) : this(id, employeeId, clientId, (DiscountType)discountType, false, cocktails) { }
 
     public void Validate()
     {
@@ -40,7 +91,7 @@ public class SaleDataModel(string id, string employeeId, string? clientId, doubl
             throw new ValidationException("The value in the field EmployeeId is not a unique identifier");
 
         if (!ClientId?.IsGuid() ?? !ClientId?.IsEmpty() ?? false)
-            throw new ValidationException("The value in the field BuyerId is not a unique identifier");
+            throw new ValidationException("The value in the field ClientId is not a unique identifier");
 
         if (Sum <= 0)
             throw new ValidationException("Field Sum is less than or equal to 0");

SquirrelContract/SquirrelContract/DataModels/SupplyCocktailDataModel.cs

@@ -0,0 +1,33 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+using System.ComponentModel;
+
+namespace SquirrelContract.DataModels;
+
+public class SupplyCocktailDataModel(string? supplyId, string? cocktailId, int count) : IValidation
+{
+    public string SupplyId { get; private set; } = supplyId;
+
+    public string CocktailId { get; private set; } = cocktailId;
+
+    public int Count { get; private set; } = count;
+
+    public void Validate()
+    {
+        if (SupplyId.IsEmpty())
+            throw new ValidationException("Field SupplyId is empty");
+
+        if (!SupplyId.IsGuid())
+            throw new ValidationException("The value in the field SupplyId is not a unique identifier");
+
+        if (CocktailId.IsEmpty())
+            throw new ValidationException("Field CocktailId is empty");
+
+        if (!CocktailId.IsGuid())
+            throw new ValidationException("The value in the field CocktailId is not a unique identifier");
+
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/SupplyDataModel.cs

@@ -0,0 +1,29 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class SupplyDataModel(string id, DateTime supplyDate, List<SupplyCocktailDataModel> cocktails) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public DateTime SupplyDate { get; private set; } = supplyDate;
+
+    public List<SupplyCocktailDataModel> Cocktails { get; private set; } = cocktails;
+
+    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 (SupplyDate.Date > DateTime.Now)
+            throw new ValidationException($"It is impossible to supply things in the future");
+
+        if ((Cocktails?.Count ?? 0) == 0)
+            throw new ValidationException("The components must include products");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/WarehouseCocktailDataModel.cs

@@ -0,0 +1,32 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class WarehouseCocktailDataModel(string? warehouseId, string? cocktailId, int count) : IValidation
+{
+    public string WarehouseId { get; private set; } = warehouseId;
+
+    public string CocktailId { get; private set; } = cocktailId;
+
+    public int Count { get; private set; } = count;
+
+    public void Validate()
+    {
+        if (WarehouseId.IsEmpty())
+            throw new ValidationException("Field WarehouseId is empty");
+
+        if (!WarehouseId.IsGuid())
+            throw new ValidationException("The value in the field WarehouseId is not a unique identifier");
+
+        if (CocktailId.IsEmpty())
+            throw new ValidationException("Field CocktailId is empty");
+
+        if (!CocktailId.IsGuid())
+            throw new ValidationException("The value in the field CocktailId is not a unique identifier");
+
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/WarehouseDataModel.cs

@@ -0,0 +1,30 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+using System.Xml.Linq;
+
+namespace SquirrelContract.DataModels;
+
+public class WarehouseDataModel(string? id, string name, List<WarehouseCocktailDataModel> cocktails) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string Name { get; private set; } = name;
+
+    public List<WarehouseCocktailDataModel> Cocktails { get; private set; } = cocktails;
+
+    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 ((Cocktails?.Count ?? 0) == 0)
+            throw new ValidationException("The cocktails must include drinks");
+    }
+}

SquirrelContract/SquirrelContract/Exceptions/ElementDeletedException.cs

@@ -0,0 +1,6 @@
+namespace SquirrelContract.Exceptions;
+
+public class ElementDeletedException : Exception
+{
+	public ElementDeletedException(string id) : base($"Cannot modify a deleted item (id: {id})") { }
+}

SquirrelContract/SquirrelContract/Exceptions/InsufficientStockException.cs

@@ -0,0 +1,5 @@
+namespace SquirrelContract.Exceptions;
+
+public class InsufficientStockException(string message) : Exception(message)
+{
+}

SquirrelContract/SquirrelContract/Infastructure/IConfigurationDatabase.cs

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

SquirrelContract/SquirrelContract/Infastructure/OperationResponse.cs

@@ -0,0 +1,37 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System.Net;
+
+namespace SquirrelContract.Infrastructure;
+
+public class OperationResponse
+{
+	public HttpStatusCode StatusCode { get; set; }
+
+	public 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 };
+}

SquirrelContract/SquirrelContract/SquirrelContract.csproj

@@ -6,4 +6,9 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Abstractions" Version="2.3.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.3.0" />
+  </ItemGroup>
+
 </Project>

SquirrelContract/SquirrelContract/StoragesContracts/IPostStorageContract.cs

@@ -4,7 +4,7 @@ namespace SquirrelContract.StoragesContracts;
 
 public interface IPostStorageContract
 {
-    List<PostDataModel> GetList(bool onlyActual = true);
+    List<PostDataModel> GetList();
     List<PostDataModel> GetPostWithHistory(string postId);
     PostDataModel? GetElementById(string id);
     PostDataModel? GetElementByName(string name);

SquirrelContract/SquirrelContract/StoragesContracts/ISalaryStorageContract.cs

@@ -4,7 +4,7 @@ namespace SquirrelContract.StoragesContracts;
 
 public interface ISalaryStorageContract
 {
-    List<SalaryDataModel> GetList(DateTime startDate, DateTime endDate, string? employeeId = null);
+    List<SalaryDataModel> GetList(DateTime? startDate, DateTime? endDate, string? employeeId = null);
 
     void AddElement(SalaryDataModel salaryDataModel);
 }

SquirrelContract/SquirrelContract/StoragesContracts/ISupplyStorageContract.cs

@@ -0,0 +1,11 @@
+using SquirrelContract.DataModels;
+
+namespace SquirrelContract.StoragesContracts;
+
+public interface ISupplyStorageContract
+{
+    List<SupplyDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? cocktailId = null);
+    SupplyDataModel? GetElementById(string id);
+    void AddElement(SupplyDataModel warehouseDataModel);
+    void UpdateElement(SupplyDataModel warehouseDataModel);
+}

SquirrelContract/SquirrelContract/StoragesContracts/IWarehouseStorageContract.cs

@@ -0,0 +1,15 @@
+using SquirrelContract.DataModels;
+
+namespace SquirrelContract.StoragesContracts;
+
+public interface IWarehouseStorageContract
+{
+    List<WarehouseDataModel> GetList();
+    WarehouseDataModel? GetElementByName(string name);
+    WarehouseDataModel? GetElementById(string id);
+    void AddElement(WarehouseDataModel warehouseDataModel);
+    void UpdElement(WarehouseDataModel warehouseDataModel);
+    void UpdWarehouseOnSupply(string warehouseId, string cocktailId, int count);
+    void DelElement(string id);
+    bool CheckCocktails(SaleDataModel saleDataModel);
+}

SquirrelContract/SquirrelContract/ViewModels/ClientViewModel.cs

@@ -0,0 +1,12 @@
+namespace SquirrelContract.ViewModels;
+
+public class ClientViewModel
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public required string PhoneNumber { get; set; }
+
+    public double DiscountSize { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/CocktailHistoryViewModel.cs

@@ -0,0 +1,10 @@
+namespace SquirrelContract.ViewModels;
+
+public class CocktailHistoryViewModel
+{
+    public required string CocktailName { get; set; }
+
+    public double OldPrice { get; set; }
+
+    public DateTime ChangeDate { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/CocktailViewModel.cs

@@ -0,0 +1,13 @@
+namespace SquirrelContract.ViewModels;
+
+public class CocktailViewModel
+{
+    public required string Id { get; set; }
+
+    public required string CocktailName { get; set; }
+
+    public required string BaseAlcohol { get; set; }
+
+    public double Price { get; set; }
+
+}

SquirrelContract/SquirrelContract/ViewModels/EmployeeViewModel.cs

@@ -0,0 +1,20 @@
+namespace SquirrelContract.ViewModels;
+
+public class EmployeeViewModel
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public string Email {  get; set; }
+
+    public required string PostId { get; set; }
+
+    public required string PostName { get; set; }
+
+    public bool IsDeleted { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/PostViewModel.cs

@@ -0,0 +1,12 @@
+namespace SquirrelContract.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; }
+}

SquirrelContract/SquirrelContract/ViewModels/SalaryViewModel.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.ViewModels;
+
+public class SalaryViewModel
+{
+    public required string EmployeeId { get; set; }
+    public required string EmployeeFIO { get; set; }
+    public DateTime SalaryDate { get; set; }
+    public double Salary { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/SaleCocktailViewModel.cs

@@ -0,0 +1,12 @@
+namespace SquirrelContract.ViewModels;
+
+public class SaleCocktailViewModel
+{
+    public required string CocktailId { get; set; }
+
+    public required string CocktailName { get; set; }
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/SaleViewModel.cs

@@ -0,0 +1,26 @@
+namespace SquirrelContract.ViewModels;
+
+public class SaleViewModel
+{
+    public required string Id { get; set; }
+
+    public required string EmployeeId { get; set; }
+
+    public required string EmployeeFIO { get; set; }
+
+    public string? ClientId { get; set; }
+
+    public string? ClientFIO { get; set; }
+
+    public DateTime SaleDate { get; set; }
+
+    public double Sum { get; set; }
+
+    public required string DiscountType { get; set; }
+
+    public double Discount { get; set; }
+
+    public bool IsCancel { get; set; }
+
+    public required List<SaleCocktailViewModel> Cocktails { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/SupplyCocktailViewModel.cs

@@ -0,0 +1,8 @@
+namespace SquirrelContract.ViewModels;
+
+public class SupplyCocktailViewModel
+{
+    public required string SupplyId { get; set; }
+    public required string CocktailId { get; set; }
+    public int Count { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/SupplyViewModel.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.ViewModels;
+
+public class SupplyViewModel
+{
+    public required string Id { get; set; }
+    public DateTime SupplyDate { get; set; }
+    public int Count { get; set; }
+    public required List<SupplyCocktailViewModel> Cocktails { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/WarehouseCocktailViewModel.cs

@@ -0,0 +1,8 @@
+namespace SquirrelContract.ViewModels;
+
+public class WarehouseCocktailViewModel
+{
+    public required string WarehouseId { get; set; }
+    public required string CocktailId { get; set; }
+    public int Count { get; set; }
+}

SquirrelContract/SquirrelContract/ViewModels/WarehouseViewModel.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.ViewModels;
+
+public class WarehouseViewModel
+{
+    public required string Id { get; set; }
+    public required string Name { get; set; }
+    public required int Count { get; set; }
+    public required List<WarehouseCocktailViewModel> Cocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/Implementations/ClientStorageContract.cs

@@ -0,0 +1,149 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+using System;
+
+namespace SquirrelDatabase.Implementations;
+
+public class ClientStorageContract : IClientStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public ClientStorageContract(SquirrelDbContext squirrelDbContext)
+    {
+        _dbContext = squirrelDbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.AddMaps(typeof(SquirrelDbContext).Assembly);
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<ClientDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Clients.Select(x => _mapper.Map<ClientDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public ClientDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<ClientDataModel>(GetClientById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public ClientDataModel? GetElementByFIO(string fio)
+    {
+        try
+        {
+            return _mapper.Map<ClientDataModel>(_dbContext.Clients.FirstOrDefault(x => x.FIO == fio));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public ClientDataModel? GetElementByPhoneNumber(string phoneNumber)
+    {
+        try
+        {
+            return _mapper.Map<ClientDataModel>(_dbContext.Clients.FirstOrDefault(x => x.PhoneNumber == phoneNumber));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(ClientDataModel clientDataModel)
+    {
+        try
+        {
+            _dbContext.Clients.Add(_mapper.Map<Client>(clientDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", clientDataModel.Id);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Clients_PhoneNumber" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PhoneNumber", clientDataModel.PhoneNumber);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(ClientDataModel clientDataModel)
+    {
+        try
+        {
+            var element = GetClientById(clientDataModel.Id) ?? throw new ElementNotFoundException(clientDataModel.Id);
+            _dbContext.Clients.Update(_mapper.Map(clientDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Clients_PhoneNumber" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PhoneNumber", clientDataModel.PhoneNumber);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetClientById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Clients.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Client? GetClientById(string id) => _dbContext.Clients.FirstOrDefault(x => x.Id == id);
+}

SquirrelContract/SquirrelDatabase/Implementations/CocktailStorageContract.cs

@@ -0,0 +1,179 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+
+namespace SquirrelDatabase.Implementations;
+
+public class CocktailStorageContract : ICocktailStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public CocktailStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Cocktail, CocktailDataModel>();
+            cfg.CreateMap<CocktailDataModel, Cocktail>();
+            cfg.CreateMap<CocktailHistory, CocktailHistoryDataModel>();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<CocktailDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Cocktails.Select(x => _mapper.Map<CocktailDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public List<CocktailHistoryDataModel> GetHistoryByCocktailId(string cocktailId)
+    {
+        try
+        {
+            return [.. _dbContext.CocktailHistories.Include(x => x.Cocktail).Where(x => x.CocktailId == cocktailId).OrderByDescending(x => x.ChangeDate).Select(x => _mapper.Map<CocktailHistoryDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public CocktailDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<CocktailDataModel>(GetCocktailById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public CocktailDataModel? GetElementByName(string name)
+    {
+        try
+        {
+            return _mapper.Map<CocktailDataModel>(_dbContext.Cocktails.FirstOrDefault(x => x.CocktailName == name));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(CocktailDataModel cocktailDataModel)
+    {
+        try
+        {
+            _dbContext.Cocktails.Add(_mapper.Map<Cocktail>(cocktailDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", cocktailDataModel.Id);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Cocktails_CocktailName" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("CocktailName", cocktailDataModel.CocktailName);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(CocktailDataModel cocktailDataModel)
+    {
+        try
+        {
+            var transaction = _dbContext.Database.BeginTransaction();
+            try
+            {
+                var element = GetCocktailById(cocktailDataModel.Id) ?? throw new ElementNotFoundException(cocktailDataModel.Id);
+                if (element.Price != cocktailDataModel.Price)
+                {
+                    _dbContext.CocktailHistories.Add(new CocktailHistory() { CocktailId = element.Id, OldPrice = element.Price });
+                    _dbContext.SaveChanges();
+                }
+                _dbContext.Cocktails.Update(_mapper.Map(cocktailDataModel, element));
+                _dbContext.SaveChanges();
+                transaction.Commit();
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Cocktails_CocktailName" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("CocktailName", cocktailDataModel.CocktailName);
+        }
+        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 = GetCocktailById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Cocktails.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void ResElement(string id)
+    {
+        try
+        {
+            var element = GetCocktailById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.SaveChanges();
+        }
+        catch
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+    }
+
+    private Cocktail? GetCocktailById(string id) => _dbContext.Cocktails.FirstOrDefault(x => x.Id == id);
+}

SquirrelContract/SquirrelDatabase/Implementations/EmployeeStorageContract.cs

@@ -0,0 +1,163 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+
+namespace SquirrelDatabase.Implementations;
+
+public class EmployeeStorageContract : IEmployeeStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public EmployeeStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Post, PostDataModel>()
+                .ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+            cfg.CreateMap<Employee, EmployeeDataModel>();
+            cfg.CreateMap<EmployeeDataModel, Employee>();
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<EmployeeDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null)
+    {
+        try
+        {
+            var query = _dbContext.Employees.AsQueryable();
+            if (onlyActive)
+            {
+                query = query.Where(x => !x.IsDeleted);
+            }
+            if (postId is not null)
+            {
+                query = query.Where(x => x.PostId == postId);
+            }
+            if (fromBirthDate is not null && toBirthDate is not null)
+            {
+                query = query.Where(x => x.BirthDate >= DateTime.SpecifyKind(fromBirthDate ?? DateTime.UtcNow, DateTimeKind.Utc) && x.BirthDate <= DateTime.SpecifyKind(toBirthDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            }
+            if (fromEmploymentDate is not null && toEmploymentDate is not null)
+            {
+                query = query.Where(x => x.EmploymentDate >= DateTime.SpecifyKind(fromEmploymentDate ?? DateTime.UtcNow, DateTimeKind.Utc) && x.EmploymentDate <= DateTime.SpecifyKind(toEmploymentDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            }
+            return [.. JoinPost(query).Select(x => _mapper.Map<EmployeeDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public EmployeeDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<EmployeeDataModel>(GetEmployeeById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public EmployeeDataModel? GetElementByFIO(string fio)
+    {
+        try
+        {
+            return _mapper.Map<EmployeeDataModel>(AddPost(_dbContext.Employees.FirstOrDefault(x => x.FIO == fio && !x.IsDeleted)));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public EmployeeDataModel? GetElementByEmail(string email)
+    {
+        try
+        {
+            return _mapper.Map<EmployeeDataModel>(AddPost(_dbContext.Employees.FirstOrDefault(x => x.Email == email && !x.IsDeleted)));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(EmployeeDataModel employeeDataModel)
+    {
+        try
+        {
+            _dbContext.Employees.Add(_mapper.Map<Employee>(employeeDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("Id", employeeDataModel.Id);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(EmployeeDataModel employeeDataModel)
+    {
+        try
+        {
+            var element = GetEmployeeById(employeeDataModel.Id) ?? throw new ElementNotFoundException(employeeDataModel.Id);
+            _dbContext.Employees.Update(_mapper.Map(employeeDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetEmployeeById(id) ?? throw new ElementNotFoundException(id);
+            element.IsDeleted = true;
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Employee? GetEmployeeById(string id) => AddPost(_dbContext.Employees.FirstOrDefault(x => x.Id == id && !x.IsDeleted));
+
+    private IQueryable<Employee> JoinPost(IQueryable<Employee> query)
+        => query.GroupJoin(_dbContext.Posts.Where(x => x.IsActual), x => x.PostId, y => y.PostId, (x, y) => new { Employee = x, Post = y })
+                .SelectMany(xy => xy.Post.DefaultIfEmpty(), (x, y) => x.Employee.AddPost(y));
+
+    private Employee? AddPost(Employee? employee)
+        => employee?.AddPost(_dbContext.Posts.FirstOrDefault(x => x.PostId == employee.PostId && x.IsActual));
+}

SquirrelContract/SquirrelDatabase/Implementations/PostStorageContract.cs

@@ -0,0 +1,185 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+
+namespace SquirrelDatabase.Implementations;
+
+public class PostStorageContract : IPostStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public PostStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Post, PostDataModel>()
+                .ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+            cfg.CreateMap<PostDataModel, Post>()
+                .ForMember(x => x.Id, x => x.Ignore())
+                .ForMember(x => x.PostId, x => x.MapFrom(src => src.Id))
+                .ForMember(x => x.IsActual, x => x.MapFrom(src => true))
+                .ForMember(x => x.ChangeDate, x => x.MapFrom(src => DateTime.UtcNow));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<PostDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Posts.Select(x => _mapper.Map<PostDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public List<PostDataModel> GetPostWithHistory(string postId)
+    {
+        try
+        {
+            return [.. _dbContext.Posts.Where(x => x.PostId == postId).Select(x => _mapper.Map<PostDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public PostDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<PostDataModel>(_dbContext.Posts.FirstOrDefault(x => x.PostId == id && x.IsActual));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public PostDataModel? GetElementByName(string name)
+    {
+        try
+        {
+            return _mapper.Map<PostDataModel>(_dbContext.Posts.FirstOrDefault(x => x.PostName == name && x.IsActual));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(PostDataModel postDataModel)
+    {
+        try
+        {
+            _dbContext.Posts.Add(_mapper.Map<Post>(postDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostName_IsActual" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PostName", postDataModel.PostName);
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostId_IsActual" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PostId", postDataModel.Id);
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(PostDataModel postDataModel)
+    {
+        try
+        {
+            var transaction = _dbContext.Database.BeginTransaction();
+            try
+            {
+                var element = GetPostById(postDataModel.Id) ?? throw new ElementNotFoundException(postDataModel.Id);
+                if (!element.IsActual)
+                {
+                    throw new ElementDeletedException(postDataModel.Id);
+                }
+                element.IsActual = false;
+                _dbContext.SaveChanges();
+                var newElement = _mapper.Map<Post>(postDataModel);
+                _dbContext.Posts.Add(newElement);
+                _dbContext.SaveChanges();
+                transaction.Commit();
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostName_IsActual" })
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new ElementExistsException("PostName", postDataModel.PostName);
+        }
+        catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetPostById(id) ?? throw new ElementNotFoundException(id);
+            if (!element.IsActual)
+            {
+                throw new ElementDeletedException(id);
+            }
+            element.IsActual = false;
+            _dbContext.SaveChanges();
+        }
+        catch
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+    }
+
+    public void ResElement(string id)
+    {
+        try
+        {
+            var element = GetPostById(id) ?? throw new ElementNotFoundException(id);
+            element.IsActual = true;
+            _dbContext.SaveChanges();
+        }
+        catch
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+    }
+
+    private Post? GetPostById(string id) => _dbContext.Posts.Where(x => x.PostId == id).OrderByDescending(x => x.ChangeDate).FirstOrDefault();
+}

SquirrelContract/SquirrelDatabase/Implementations/SalaryStorageContract.cs

@@ -0,0 +1,62 @@
+using AutoMapper;
+using BarBelochkaContract.DataModels;
+using Microsoft.EntityFrameworkCore;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+
+namespace SquirrelDatabase.Implementations;
+
+public class SalaryStorageContract : ISalaryStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SalaryStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<Employee, EmployeeDataModel>();
+            cfg.CreateMap<Salary, SalaryDataModel>();
+            cfg.CreateMap<SalaryDataModel, Salary>()
+                .ForMember(dest => dest.EmployeeSalary, opt => opt.MapFrom(src => src.Salary));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SalaryDataModel> GetList(DateTime? startDate, DateTime? endDate, string? employeeId = null)
+    {
+        try
+        {
+            var query = _dbContext.Salaries.Include(d => d.Employee).AsQueryable();
+            if (startDate.HasValue)
+                query = query.Where(x => x.SalaryDate >= DateTime.SpecifyKind(startDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (endDate.HasValue)
+                query = query.Where(x => x.SalaryDate <= DateTime.SpecifyKind(endDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (employeeId != null)
+                query = query.Where(x => x.EmployeeId == employeeId);
+            return [.. query.Select(x => _mapper.Map<SalaryDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(SalaryDataModel salaryDataModel)
+    {
+        try
+        {
+            _dbContext.Salaries.Add(_mapper.Map<Salary>(salaryDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+}

SquirrelContract/SquirrelDatabase/Implementations/SaleStorageContract.cs

@@ -0,0 +1,120 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+using System;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace SquirrelDatabase.Implementations;
+
+public class SaleStorageContract : ISaleStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public SaleStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {            
+            cfg.CreateMap<Client, ClientDataModel>();
+            cfg.CreateMap<Cocktail, CocktailDataModel>();
+            cfg.CreateMap<Employee, EmployeeDataModel>();
+            cfg.CreateMap<SaleCocktail, SaleCocktailDataModel>();
+            cfg.CreateMap<SaleCocktailDataModel, SaleCocktail>()
+                    .ForMember(x => x.Cocktail, x => x.Ignore());
+            cfg.CreateMap<Sale, SaleDataModel>();
+            cfg.CreateMap<SaleDataModel, Sale>()
+                .ForMember(x => x.IsCancel, x => x.MapFrom(src => false))
+                .ForMember(x => x.SaleCocktails, x => x.MapFrom(src => src.Cocktails))
+                .ForMember(x => x.Employee, x => x.Ignore())
+                .ForMember(x => x.Client, x => x.Ignore());
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? employeeId = null, string? clientId = null, string? cocktailId = null)
+    {
+        try
+        {
+            var query = _dbContext.Sales
+                .Include(r => r.Employee)
+                .Include(r => r.Client)
+                .Include(r => r.SaleCocktails)!
+                .ThenInclude(d => d.Cocktail)
+                .AsQueryable();
+            if (startDate.HasValue)
+                query = query.Where(x => x.SaleDate >= DateTime.SpecifyKind(startDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (endDate.HasValue)
+                query = query.Where(x => x.SaleDate <= DateTime.SpecifyKind(endDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (employeeId != null)
+                query = query.Where(x => x.EmployeeId == employeeId);
+            if (clientId != null)
+                query = query.Where(x => x.ClientId == clientId);
+            if (cocktailId != null)
+                query = query.Where(x => x.SaleCocktails!.Any(y => y.CocktailId == cocktailId));
+            var s = query.ToList();
+            return [.. query.Select(x => _mapper.Map<SaleDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public SaleDataModel? GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<SaleDataModel>(GetSaleById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(SaleDataModel saleDataModel)
+    {
+        try
+        {
+            _dbContext.Sales.Add(_mapper.Map<Sale>(saleDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void DelElement(string id)
+    {
+        try
+        {
+            var element = GetSaleById(id) ?? throw new ElementNotFoundException(id);
+            if (element.IsCancel)
+            {
+                throw new ElementDeletedException(id);
+            }
+            element.IsCancel = true;
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Sale? GetSaleById(string id) => _dbContext.Sales.Include(x => x.Client).Include(x => x.Employee).Include(x => x.SaleCocktails)!.ThenInclude(x => x.Cocktail).FirstOrDefault(x => x.Id == id);
+}

SquirrelContract/SquirrelDatabase/Implementations/SupplyStorageContract.cs

@@ -0,0 +1,100 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+using System;
+
+namespace SquirrelDatabase.Implementations;
+
+public class SupplyStorageContract : ISupplyStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly IMapper _mapper;
+
+    public SupplyStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<SupplyCocktail, SupplyCocktailDataModel>();
+            cfg.CreateMap<SupplyCocktailDataModel, SupplyCocktail>();
+            cfg.CreateMap<Supply, SupplyDataModel>();
+            cfg.CreateMap<SupplyDataModel, Supply>()
+                .ForMember(x => x.Cocktails, x => x.MapFrom(src => src.Cocktails));
+        });
+        _mapper = new Mapper(config);
+    }
+
+    public List<SupplyDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? cocktailId = null)
+    {
+        try
+        {
+            var query = _dbContext.Supplies.Include(x => x.Cocktails).AsQueryable();
+            if (startDate.HasValue)
+                query = query.Where(x => x.SupplyDate >= DateTime.SpecifyKind(startDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (endDate.HasValue)
+                query = query.Where(x => x.SupplyDate <= DateTime.SpecifyKind(endDate ?? DateTime.UtcNow, DateTimeKind.Utc));
+            if (cocktailId is not null)
+            {
+                query = query.Where(x => x.Cocktails!.Any(y => y.CocktailId == cocktailId));
+            }
+            return [.. query.Select(x => _mapper.Map<SupplyDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public SupplyDataModel GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<SupplyDataModel>(GetSuppliesById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(SupplyDataModel suppliesDataModel)
+    {
+        try
+        {
+            _dbContext.Supplies.Add(_mapper.Map<Supply>(suppliesDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdateElement(SupplyDataModel suppliesDataModel)
+    {
+        try
+        {
+            var element = GetSuppliesById(suppliesDataModel.Id) ?? throw new ElementNotFoundException(suppliesDataModel.Id);
+            _dbContext.Supplies.Update(_mapper.Map(suppliesDataModel, element));
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    private Supply? GetSuppliesById(string id) => _dbContext.Supplies.FirstOrDefault(x => x.Id == id);
+}
+

SquirrelContract/SquirrelDatabase/Implementations/WarehouseStorageContract.cs

@@ -0,0 +1,211 @@
+using AutoMapper;
+using Microsoft.EntityFrameworkCore;
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using SquirrelDatabase.Models;
+
+namespace SquirrelDatabase.Implementations;
+
+public class WarehouseStorageContract : IWarehouseStorageContract
+{
+    private readonly SquirrelDbContext _dbContext;
+    private readonly Mapper _mapper;
+
+    public WarehouseStorageContract(SquirrelDbContext dbContext)
+    {
+        _dbContext = dbContext;
+        var config = new MapperConfiguration(cfg =>
+        {
+            cfg.CreateMap<WarehouseCocktail, WarehouseCocktailDataModel>();
+            cfg.CreateMap<WarehouseCocktailDataModel, WarehouseCocktail>();
+            cfg.CreateMap<Warehouse, WarehouseDataModel>();
+            cfg.CreateMap<WarehouseDataModel, Warehouse>()
+                .ForMember(x => x.Cocktails, x => x.MapFrom(src => src.Cocktails));
+        });
+        _mapper = new Mapper(config);
+
+    }
+    public List<WarehouseDataModel> GetList()
+    {
+        try
+        {
+            return [.. _dbContext.Warehouses.Select(x => _mapper.Map<WarehouseDataModel>(x))];
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public WarehouseDataModel GetElementById(string id)
+    {
+        try
+        {
+            return _mapper.Map<WarehouseDataModel>(GetWarehouseById(id));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public WarehouseDataModel GetElementByName(string name)
+    {
+        try
+        {
+            return _mapper.Map<WarehouseDataModel>(_dbContext.Warehouses.FirstOrDefault(x => x.Name == name));
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void AddElement(WarehouseDataModel warehouseDataModel)
+    {
+        try
+        {
+            _dbContext.Warehouses.Add(_mapper.Map<Warehouse>(warehouseDataModel));
+            _dbContext.SaveChanges();
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+    public void UpdElement(WarehouseDataModel warehouseDataModel)
+    {
+        try
+        {
+            var element = GetWarehouseById(warehouseDataModel.Id) ?? throw new ElementNotFoundException(warehouseDataModel.Id);
+            _dbContext.Warehouses.Update(_mapper.Map(warehouseDataModel, 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 = GetWarehouseById(id) ?? throw new ElementNotFoundException(id);
+            _dbContext.Warehouses.Remove(element);
+            _dbContext.SaveChanges();
+        }
+        catch (ElementNotFoundException)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw;
+        }
+        catch (Exception ex)
+        {
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+    public void UpdWarehouseOnSupply(string warehouseId, string cocktailId, int count)
+    {
+        using var transaction = _dbContext.Database.BeginTransaction();
+        try
+        {
+            var warehouse = _dbContext.Warehouses
+                 .Include(w => w.Cocktails)
+                 .FirstOrDefault(w => w.Id == warehouseId);
+            if (warehouse == null)
+            {
+                throw new ElementNotFoundException($"Warehouse with id {warehouseId} not found.");
+            }
+
+            var warehouseCocktail = warehouse.Cocktails.FirstOrDefault(c => c.CocktailId == cocktailId);
+
+            if (warehouseCocktail != null)
+            {
+                warehouseCocktail.Count += count;
+            }
+            else
+            {
+                warehouse.Cocktails.Add(new WarehouseCocktail
+                {
+                    WarehouseId = warehouseId,
+                    CocktailId = cocktailId,
+                    Count = count
+                });
+            }
+
+            _dbContext.SaveChanges();
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            transaction.Rollback(); 
+            _dbContext.ChangeTracker.Clear();
+            throw new StorageException(ex);
+        }
+    }
+
+
+    public bool CheckCocktails(SaleDataModel saleDataModel)
+    {
+        using var transaction = _dbContext.Database.BeginTransaction();
+
+        try
+        {
+            foreach (var saleCocktail in saleDataModel.Cocktails)
+            {
+                int requiredCount = saleCocktail.Count;
+
+                var warehousesWithCocktail = _dbContext.Warehouses.Include(w => w.Cocktails)
+                    .Where(w => w.Cocktails.Any(c => c.CocktailId == saleCocktail.CocktailId && c.Count > 0))
+                    .ToList();
+
+                foreach (var warehouse in warehousesWithCocktail)
+                {
+                    var warehouseCocktail = warehouse.Cocktails
+                        .FirstOrDefault(c => c.CocktailId == saleCocktail.CocktailId);
+
+                    if (warehouseCocktail == null || warehouseCocktail.Count == 0)
+                        continue;
+
+                    int toWithdraw = Math.Min(warehouseCocktail.Count, requiredCount);
+                    warehouseCocktail.Count -= toWithdraw;
+                    requiredCount -= toWithdraw;
+                    _dbContext.SaveChanges();
+
+                    if (requiredCount == 0)
+                        break;
+                }
+
+                if (requiredCount > 0)
+                {
+                    transaction.Rollback();
+                    return false;
+                }
+            }
+
+            _dbContext.SaveChanges();
+            transaction.Commit();
+            return true;
+        }
+        catch (Exception ex)
+        {
+            transaction.Rollback();
+            throw new StorageException(ex);
+        }
+    }
+
+    private Warehouse? GetWarehouseById(string id) => _dbContext.Warehouses.FirstOrDefault(x => x.Id == id);
+}

SquirrelContract/SquirrelDatabase/Models/Client.cs

@@ -0,0 +1,18 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SquirrelDatabase.Models;
+
+[AutoMap(typeof(ClientDataModel), ReverseMap = true)]
+public class Client
+{
+    public required string Id { get; set; } = Guid.NewGuid().ToString();
+    public required string FIO { get; set; } 
+    public required string PhoneNumber { get; set; } 
+    public double DiscountSize { get; set; }
+
+    [ForeignKey("ClientId")]
+    public List<Sale>? Sales { get; set; }
+
+}

SquirrelContract/SquirrelDatabase/Models/Cocktail.cs

@@ -0,0 +1,18 @@
+using SquirrelContract.Enums;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SquirrelDatabase.Models;
+
+public class Cocktail
+{
+    public required string Id { get; set; }
+    public required string CocktailName { get; set; }
+    public double Price { get; set; }
+    public required AlcoholType BaseAlcohol { get; set; }
+
+    [ForeignKey("CocktailId")]
+    public List<CocktailHistory>? CocktailHistories { get; set; }
+
+    [ForeignKey("CocktailId")]
+    public List<SaleCocktail>? SaleCocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/CocktailHistory.cs

@@ -0,0 +1,14 @@
+namespace SquirrelDatabase.Models;
+
+public class CocktailHistory
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string CocktailId { get; set; }
+
+    public double OldPrice { get; set; }
+
+    public DateTime ChangeDate { get; set; }
+
+    public Cocktail? Cocktail { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/Employee.cs

@@ -0,0 +1,38 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SquirrelDatabase.Models;
+
+[AutoMap(typeof(EmployeeDataModel), ReverseMap = true)]
+public class Employee
+{
+    public required string Id { get; set; }
+
+    public required string FIO { get; set; }
+
+    public string Email { get; set; }
+
+    public required string PostId { get; set; }
+
+    public DateTime BirthDate { get; set; }
+
+    public DateTime EmploymentDate { get; set; }
+
+    public bool IsDeleted { get; set; }
+
+    [NotMapped]
+    public Post? Post { get; set; }
+
+    [ForeignKey("EmployeeId")]
+    public List<Salary>? Salaries { get; set; }
+
+    [ForeignKey("EmployeeId")]
+    public List<Sale>? Sales { get; set; }
+
+    public Employee AddPost(Post? post)
+    {
+        Post = post;
+        return this;
+    }
+}

SquirrelContract/SquirrelDatabase/Models/Post.cs

@@ -0,0 +1,22 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+
+namespace SquirrelDatabase.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; }
+}

SquirrelContract/SquirrelDatabase/Models/Salary.cs

@@ -0,0 +1,18 @@
+using AutoMapper;
+using BarBelochkaContract.DataModels;
+
+namespace SquirrelDatabase.Models;
+
+public class Salary
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string EmployeeId { get; set; }
+
+    public DateTime SalaryDate { get; set; }
+
+    public double EmployeeSalary { get; set; }
+
+    public Employee? Employee { get; set; }
+
+}

SquirrelContract/SquirrelDatabase/Models/Sale.cs

@@ -0,0 +1,33 @@
+using AutoMapper;
+using BarBelochkaContract.DataModels;
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SquirrelDatabase.Models;
+
+public class Sale
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+
+    public required string EmployeeId { get; set; }
+
+    public string? ClientId { get; set; }
+
+    public DateTime SaleDate { get; set; }
+
+    public double Sum { get; set; }
+
+    public DiscountType DiscountType { get; set; }
+
+    public double Discount { get; set; }
+
+    public bool IsCancel { get; set; }
+
+    public Employee? Employee { get; set; }  
+
+    public Client? Client { get; set; }
+
+    [ForeignKey("SaleId")]
+    public List<SaleCocktail>? SaleCocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/SaleCocktail.cs

@@ -0,0 +1,16 @@
+namespace SquirrelDatabase.Models;
+
+public class SaleCocktail
+{
+    public required string SaleId { get; set; }
+
+    public required string CocktailId { get; set; }
+
+    public int Count { get; set; }
+
+    public double Price { get; set; }
+
+    public Sale? Sale { get; set; }
+
+    public Cocktail? Cocktail { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/Supply.cs

@@ -0,0 +1,14 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SquirrelDatabase.Models;
+
+public class Supply
+{
+    public required string Id { get; set; }
+    public DateTime SupplyDate { get; set; }
+
+    [ForeignKey("SupplyId")]
+    public List<SupplyCocktail>? Cocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/SupplyCocktail.cs

@@ -0,0 +1,13 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+
+namespace SquirrelDatabase.Models;
+
+public class SupplyCocktail
+{
+    public required string SupplyId { get; set; }
+    public required string CocktailId { get; set; }
+    public int Count { get; set; }
+    public Supply? Supply { get; set; }
+    public Cocktail? Cocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/Warehouse.cs

@@ -0,0 +1,14 @@
+using AutoMapper;
+using SquirrelContract.DataModels;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace SquirrelDatabase.Models;
+
+public class Warehouse
+{
+    public required string Id { get; set; }
+    public required string Name { get; set; }
+
+    [ForeignKey("WarehouseId")]
+    public List<WarehouseCocktail> Cocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/Models/WarehouseCocktail.cs

@@ -0,0 +1,10 @@
+namespace SquirrelDatabase.Models;
+
+public class WarehouseCocktail
+{
+    public required string WarehouseId { get; set; }
+    public required string CocktailId { get; set; }
+    public int Count { get; set; }
+    public Warehouse? Warehouse { get; set; }
+    public Cocktail? Cocktails { get; set; }
+}

SquirrelContract/SquirrelDatabase/SquirrelDatabase.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Library</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.2" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SquirrelContract\SquirrelContract.csproj" />
+  </ItemGroup>
+
+</Project>

SquirrelContract/SquirrelDatabase/SquirrelDbContext.cs

@@ -0,0 +1,72 @@
+using Microsoft.EntityFrameworkCore;
+using SquirrelContract.Infastructure;
+using SquirrelDatabase.Models;
+
+namespace SquirrelDatabase;
+
+public class SquirrelDbContext(IConfigurationDatabase configurationDatabase) : DbContext
+{
+    private readonly IConfigurationDatabase? _configurationDatabase = configurationDatabase;
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+    {
+        optionsBuilder.UseNpgsql(_configurationDatabase?.ConnectionString, o => o.SetPostgresVersion(12, 2));
+        base.OnConfiguring(optionsBuilder);
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        modelBuilder.Entity<Client>().HasIndex(x => x.PhoneNumber).IsUnique();
+
+        modelBuilder.Entity<Sale>()
+            .HasOne(e => e.Client)
+            .WithMany(e => e.Sales)
+            .OnDelete(DeleteBehavior.SetNull);
+
+        modelBuilder.Entity<Cocktail>().HasIndex(x => x.CocktailName).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<Warehouse>().HasIndex(x => x.Name).IsUnique();
+
+        modelBuilder.Entity<SupplyCocktail>().HasKey(x => new { x.SupplyId, x.CocktailId });
+
+        modelBuilder.Entity<WarehouseCocktail>().HasKey(x => new { x.WarehouseId, x.CocktailId });
+
+        modelBuilder.Entity<SaleCocktail>().HasKey(x => new { x.SaleId, x.CocktailId });
+    }
+
+    public DbSet<Client> Clients { get; set; }
+
+    public DbSet<Post> Posts { get; set; }
+
+    public DbSet<Cocktail> Cocktails { get; set; }
+
+    public DbSet<CocktailHistory> CocktailHistories { get; set; }
+
+    public DbSet<Salary> Salaries { get; set; }
+
+    public DbSet<Sale> Sales { get; set; }
+
+    public DbSet<SaleCocktail> SaleCocktails { get; set; }
+
+    public DbSet<Employee> Employees { get; set; }
+
+    public DbSet<Supply> Supplies { get; set; }
+
+    public DbSet<Warehouse> Warehouses { get; set; }
+
+    public DbSet<SupplyCocktail> SupplyCocktails { get; set; }
+
+    public DbSet<WarehouseCocktail> WarehouseCocktails { get; set; }
+}

SquirrelContract/SquirrelTests/BusinessLogicContractsTests/PostBusinessLogicContractTests.cs

@@ -33,61 +33,53 @@ internal class PostBusinessLogicContractTests
         //Arrange
         var listOriginal = new List<PostDataModel>()
         {
-            new(Guid.NewGuid().ToString(),"name 1", PostType.Manager, 10, true, DateTime.UtcNow),
-            new(Guid.NewGuid().ToString(), "name 2", PostType.Manager, 10, false, DateTime.UtcNow),
-            new(Guid.NewGuid().ToString(), "name 3", PostType.Manager, 10, true, DateTime.UtcNow),
+            new(Guid.NewGuid().ToString(),"name 1", PostType.Manager, 10),
+            new(Guid.NewGuid().ToString(), "name 2", PostType.Manager, 10),
+            new(Guid.NewGuid().ToString(), "name 3", PostType.Manager, 10),
         };
-        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(listOriginal);
+        _postStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
         //Act
-        var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
-        var listAll = _postBusinessLogicContract.GetAllPosts(false);
+        var list = _postBusinessLogicContract.GetAllPosts();
         //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));
+            Assert.That(list, Is.Not.Null);
+            Assert.That(list, Is.EquivalentTo(listOriginal));
         });
-        _postStorageContract.Verify(x => x.GetList(true), Times.Once);
-        _postStorageContract.Verify(x => x.GetList(false), Times.Once);
+        _postStorageContract.Verify(x => x.GetList(), Times.Once);
     }
 
     [Test]
     public void GetAllPosts_ReturnEmptyList_Test()
     {
         //Arrange
-        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns([]);
+        _postStorageContract.Setup(x => x.GetList()).Returns([]);
         //Act
-        var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
-        var listAll = _postBusinessLogicContract.GetAllPosts(false);
+        var list = _postBusinessLogicContract.GetAllPosts();
         //Assert
         Assert.Multiple(() =>
         {
-            Assert.That(listOnlyActive, Is.Not.Null);
-            Assert.That(listAll, Is.Not.Null);
-            Assert.That(listOnlyActive, Has.Count.EqualTo(0));
-            Assert.That(listAll, Has.Count.EqualTo(0));
+            Assert.That(list, Is.Not.Null);
+            Assert.That(list, Has.Count.EqualTo(0));
         });
-        _postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Exactly(2));
     }
 
     [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);
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<NullListException>());
+        _postStorageContract.Verify(x => x.GetList(), Times.Once);
     }
 
     [Test]
     public void GetAllPosts_StorageThrowError_ThrowException_Test()
     {
         //Arrange
-        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Throws(new StorageException(new InvalidOperationException()));
+        _postStorageContract.Setup(x => x.GetList()).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);
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.GetList(), Times.Once);
     }
 
     [Test]
@@ -97,8 +89,8 @@ internal class PostBusinessLogicContractTests
         var postId = Guid.NewGuid().ToString();
         var listOriginal = new List<PostDataModel>()
         {
-            new(postId, "name 1", PostType.Manager, 10, true, DateTime.UtcNow),
-            new(postId, "name 2", PostType.Manager, 10, false, DateTime.UtcNow)
+            new(postId, "name 1", PostType.Manager, 10),
+            new(postId, "name 2", PostType.Manager, 10)
         };
         _postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Returns(listOriginal);
         //Act
@@ -162,7 +154,7 @@ internal class PostBusinessLogicContractTests
     {
         //Arrange
         var id = Guid.NewGuid().ToString();
-        var record = new PostDataModel(id, "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        var record = new PostDataModel(id, "name", PostType.Manager, 10);
         _postStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
         //Act
         var element = _postBusinessLogicContract.GetPostByData(id);
@@ -177,7 +169,7 @@ internal class PostBusinessLogicContractTests
     {
         //Arrange
         var postName = "name";
-        var record = new PostDataModel(Guid.NewGuid().ToString(), postName, PostType.Manager, 10, true, DateTime.UtcNow);
+        var record = new PostDataModel(Guid.NewGuid().ToString(), postName, PostType.Manager, 10);
         _postStorageContract.Setup(x => x.GetElementByName(postName)).Returns(record);
         //Act
         var element = _postBusinessLogicContract.GetPostByData(postName);
@@ -233,12 +225,11 @@ internal class PostBusinessLogicContractTests
     {
         //Arrange
         var flag = false;
-        var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Bartender, 10, true, DateTime.UtcNow.AddDays(-1));
+        var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 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 &&
-                    x.ChangeDate == record.ChangeDate;
+                flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary;
             });
         //Act
         _postBusinessLogicContract.InsertPost(record);
@@ -253,7 +244,7 @@ internal class PostBusinessLogicContractTests
         //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.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<ElementExistsException>());
+        Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.Manager, 10)), Throws.TypeOf<ElementExistsException>());
         _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
     }
 
@@ -269,7 +260,7 @@ internal class PostBusinessLogicContractTests
     public void InsertPost_InvalidRecord_ThrowException_Test()
     {
         //Act&Assert
-        Assert.That(() => _postBusinessLogicContract.InsertPost(new PostDataModel("id", "name", PostType.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<ValidationException>());
+        Assert.That(() => _postBusinessLogicContract.InsertPost(new PostDataModel("id", "name", PostType.Manager, 10)), Throws.TypeOf<ValidationException>());
         _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Never);
     }
 
@@ -279,7 +270,7 @@ internal class PostBusinessLogicContractTests
         //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.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<StorageException>());
+        Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.Manager, 10)), Throws.TypeOf<StorageException>());
         _postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
     }
 
@@ -288,12 +279,11 @@ internal class PostBusinessLogicContractTests
     {
         //Arrange
         var flag = false;
-        var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Bartender, 10, true, DateTime.UtcNow.AddDays(-1));
+        var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 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 &&
-                    x.ChangeDate == record.ChangeDate;
+                flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary;
             });
         //Act
         _postBusinessLogicContract.UpdatePost(record);
@@ -308,7 +298,7 @@ internal class PostBusinessLogicContractTests
         //Arrange
         _postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new ElementNotFoundException(""));
         //Act&Assert
-        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<ElementNotFoundException>());
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Manager, 10)), Throws.TypeOf<ElementNotFoundException>());
         _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
     }
 
@@ -318,7 +308,7 @@ internal class PostBusinessLogicContractTests
         //Arrange
         _postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new ElementExistsException("Data", "Data"));
         //Act&Assert
-        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "anme", PostType.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<ElementExistsException>());
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "anme", PostType.Manager, 10)), Throws.TypeOf<ElementExistsException>());
         _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
     }
 
@@ -334,7 +324,7 @@ internal class PostBusinessLogicContractTests
     public void UpdatePost_InvalidRecord_ThrowException_Test()
     {
         //Act&Assert
-        Assert.That(() => _postBusinessLogicContract.UpdatePost(new PostDataModel("id", "name", PostType.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<ValidationException>());
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new PostDataModel("id", "name", PostType.Manager, 10)), Throws.TypeOf<ValidationException>());
         _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Never);
     }
 
@@ -344,7 +334,7 @@ internal class PostBusinessLogicContractTests
         //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.Bartender, 10, true, DateTime.UtcNow)), Throws.TypeOf<StorageException>());
+        Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Manager, 10)), Throws.TypeOf<StorageException>());
         _postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
     }
 

SquirrelContract/SquirrelTests/BusinessLogicContractsTests/SalaryBusinessLogicContractTests.cs

@@ -160,7 +160,7 @@ internal class SalaryBusinessLogicContractTests
     public void GetAllSalariesByEmployee_EmployeeIdIsNotGuid_ThrowException_Test()
     {
         //Act&Assert
-        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), "workerId"), Throws.TypeOf<ValidationException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), "employeeId"), Throws.TypeOf<ValidationException>());
         _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
     }
 
@@ -187,12 +187,12 @@ internal class SalaryBusinessLogicContractTests
     {
         //Arrange
         var employeeId = Guid.NewGuid().ToString();
-        var saleSum = 200.0;
+        var saleSum = 1.2 * 5;
         var postSalary = 2000.0;
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, saleSum, DiscountType.None, 0, false, [])]);
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])]);
         _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, postSalary, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, postSalary));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
             .Returns([new EmployeeDataModel(employeeId, "Test", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
         var sum = 0.0;
@@ -209,7 +209,7 @@ internal class SalaryBusinessLogicContractTests
     }
 
     [Test]
-    public void CalculateSalaryByMounth_WithSeveralWorkers_Test()
+    public void CalculateSalaryByMounth_WithSeveralEmployees_Test()
     {
         //Arrange
         var employee1Id = Guid.NewGuid().ToString();
@@ -221,13 +221,13 @@ internal class SalaryBusinessLogicContractTests
             new(employee3Id, "Test", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)
         };
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employee1Id, null, 1, DiscountType.None, 0, false, []),
-            new SaleDataModel(Guid.NewGuid().ToString(), employee1Id, null, 1, DiscountType.None, 0, false, []),
-            new SaleDataModel(Guid.NewGuid().ToString(), employee2Id, null, 1, DiscountType.None, 0, false, []),
-            new SaleDataModel(Guid.NewGuid().ToString(), employee3Id, null, 1, DiscountType.None, 0, false, []),
-            new SaleDataModel(Guid.NewGuid().ToString(), employee3Id, null, 1, DiscountType.None, 0, false, [])]);
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employee1Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee1Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee2Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee3Id, null, DiscountType.None, false, []),
+            new SaleDataModel(Guid.NewGuid().ToString(), employee3Id, null, DiscountType.None, false, [])]);
         _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
             .Returns(list);
         //Act
@@ -237,7 +237,7 @@ internal class SalaryBusinessLogicContractTests
     }
 
     [Test]
-    public void CalculateSalaryByMounth_WithoutSalesByWorker_Test()
+    public void CalculateSalaryByMounth_WithoutSalesByEmployee_Test()
     {
         //Arrange
         var postSalary = 2000.0;
@@ -245,7 +245,7 @@ internal class SalaryBusinessLogicContractTests
         _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.Manager, postSalary, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, postSalary));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
             .Returns([new EmployeeDataModel(employeeId, "Test", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
         var sum = 0.0;
@@ -267,7 +267,7 @@ internal class SalaryBusinessLogicContractTests
         //Arrange
         var employeeId = Guid.NewGuid().ToString();
         _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
             .Returns([new EmployeeDataModel(employeeId, "Test", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
         //Act&Assert
@@ -280,22 +280,22 @@ internal class SalaryBusinessLogicContractTests
         //Arrange
         var employeeId = Guid.NewGuid().ToString();
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, 200, DiscountType.None, 0, false, [])]);
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
-            .Returns([new EmployeeDataModel(employeeId, "Test", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+            .Returns([new EmployeeDataModel(employeeId, "Test", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
         //Act&Assert
         Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
     }
 
     [Test]
-    public void CalculateSalaryByMounth_WorkerStorageReturnNull_ThrowException_Test()
+    public void CalculateSalaryByMounth_EmployeeStorageReturnNull_ThrowException_Test()
     {
         //Arrange
         var employeeId = Guid.NewGuid().ToString();
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, 200, DiscountType.None, 0, false, [])]);
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
         _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000));
         //Act&Assert
         Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
     }
@@ -308,7 +308,7 @@ internal class SalaryBusinessLogicContractTests
         _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.Manager, 2000, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
             .Returns([new EmployeeDataModel(employeeId, "Test", "123@gmail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
         //Act&Assert
@@ -321,7 +321,7 @@ internal class SalaryBusinessLogicContractTests
         //Arrange
         var employeeId = Guid.NewGuid().ToString();
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, 200, DiscountType.None, 0, false, [])]);
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
         _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
             .Throws(new StorageException(new InvalidOperationException()));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
@@ -331,14 +331,14 @@ internal class SalaryBusinessLogicContractTests
     }
 
     [Test]
-    public void CalculateSalaryByMounth_WorkerStorageThrowException_ThrowException_Test()
+    public void CalculateSalaryByMounth_EmployeeStorageThrowException_ThrowException_Test()
     {
         //Arrange
         var employeeId = Guid.NewGuid().ToString();
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, 200, DiscountType.None, 0, false, [])]);
+            .Returns([new SaleDataModel(Guid.NewGuid().ToString(), employeeId, null, DiscountType.None, false, [])]);
         _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000, true, DateTime.UtcNow));
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 2000));
         _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
             .Throws(new StorageException(new InvalidOperationException()));
         //Act&Assert

SquirrelContract/SquirrelTests/BusinessLogicContractsTests/SaleBusinessLogicContractTests.cs

@@ -13,18 +13,21 @@ internal class SaleBusinessLogicContractTests
 {
     private SaleBusinessLogicContract _saleBusinessLogicContract;
     private Mock<ISaleStorageContract> _saleStorageContract;
+    private Mock<IWarehouseStorageContract> _warehouseStorageContract;
 
     [OneTimeSetUp]
     public void OneTimeSetUp()
     {
         _saleStorageContract = new Mock<ISaleStorageContract>();
-        _saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object, new Mock<ILogger>().Object);
+        _warehouseStorageContract = new Mock<IWarehouseStorageContract>();
+        _saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object, _warehouseStorageContract.Object, new Mock<ILogger>().Object);
     }
 
     [TearDown]
     public void TearDown()
     {
         _saleStorageContract.Reset();
+        _warehouseStorageContract.Reset();
     }
 
     [Test]
@@ -34,10 +37,10 @@ internal class SaleBusinessLogicContractTests
         var date = DateTime.UtcNow;
         var listOriginal = new List<SaleDataModel>()
         {
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
         };
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
         //Act
@@ -98,10 +101,10 @@ internal class SaleBusinessLogicContractTests
         var employeeId = Guid.NewGuid().ToString();
         var listOriginal = new List<SaleDataModel>()
         {
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
         };
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
         //Act
@@ -179,10 +182,10 @@ internal class SaleBusinessLogicContractTests
         var clientId = Guid.NewGuid().ToString();
         var listOriginal = new List<SaleDataModel>()
         {
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
         };
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
         //Act
@@ -260,10 +263,10 @@ internal class SaleBusinessLogicContractTests
         var cocktailId = Guid.NewGuid().ToString();
         var listOriginal = new List<SaleDataModel>()
         {
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
         };
         _saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
         //Act
@@ -338,8 +341,8 @@ internal class SaleBusinessLogicContractTests
     {
         //Arrange
         var id = Guid.NewGuid().ToString();
-        var record = new SaleDataModel(id, Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        var record = new SaleDataModel(id, Guid.NewGuid().ToString(), null, DiscountType.None, false,
+                [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]);
         _saleStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
         //Act
         var element = _saleBusinessLogicContract.GetSaleByData(id);
@@ -389,8 +392,9 @@ internal class SaleBusinessLogicContractTests
     {
         //Arrange
         var flag = false;
-        var record = new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.None, 10,
-            false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        var record = new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.None,
+            false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]);
+        _warehouseStorageContract.Setup(x => x.CheckCocktails(It.IsAny<SaleDataModel>())).Returns(true);
         _saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>()))
             .Callback((SaleDataModel x) =>
             {
@@ -404,6 +408,7 @@ internal class SaleBusinessLogicContractTests
         //Act
         _saleBusinessLogicContract.InsertSale(record);
         //Assert
+        _warehouseStorageContract.Verify(x => x.CheckCocktails(It.IsAny<SaleDataModel>()), Times.Once);
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
         Assert.That(flag);
     }
@@ -412,11 +417,13 @@ internal class SaleBusinessLogicContractTests
     public void InsertSale_RecordWithExistsData_ThrowException_Test()
     {
         //Arrange
+        _warehouseStorageContract.Setup(x => x.CheckCocktails(It.IsAny<SaleDataModel>())).Returns(true);
         _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(), 10, DiscountType.None, 10, false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+            Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<ElementExistsException>());
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
+        _warehouseStorageContract.Verify(x => x.CheckCocktails(It.IsAny<SaleDataModel>()), Times.Once);
     }
 
     [Test]
@@ -431,7 +438,7 @@ internal class SaleBusinessLogicContractTests
     public void InsertSale_InvalidRecord_ThrowException_Test()
     {
         //Act&Assert
-        Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false, [])), Throws.TypeOf<ValidationException>());
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.None, false, [])), Throws.TypeOf<ValidationException>());
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Never);
     }
 
@@ -439,13 +446,26 @@ internal class SaleBusinessLogicContractTests
     public void InsertSale_StorageThrowError_ThrowException_Test()
     {
         //Arrange
+        _warehouseStorageContract.Setup(x => x.CheckCocktails(It.IsAny<SaleDataModel>())).Returns(true);
         _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(), 10, DiscountType.None, 10, false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+            Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.CheckCocktails(It.IsAny<SaleDataModel>()), Times.Once);
         _saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
     }
 
+    [Test]
+    public void InsertSale_InsufficientError_ThrowException_Test()
+    {
+        //Arrange
+        _warehouseStorageContract.Setup(x => x.CheckCocktails(It.IsAny<SaleDataModel>())).Returns(false);
+        Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<InsufficientStockException>());
+        //Act&Assert
+        _warehouseStorageContract.Verify(x => x.CheckCocktails(It.IsAny<SaleDataModel>()), Times.Once);
+    }
+
     [Test]
     public void CancelSale_CorrectRecord_Test()
     {

SquirrelContract/SquirrelTests/BusinessLogicContractsTests/SupplyBusinessLogicContractTests.cs

@@ -0,0 +1,284 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using SquirrelBusinessLogic.Implementations;
+using SquirrelContract.BusinessLogicContracts;
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace SquirrelTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class SupplyBusinessLogicContractTests
+{
+    private SupplyBusinessLogicContract _supplyBusinessLogicContract;
+    private Mock<ISupplyStorageContract> _supplyStorageContract;
+    private Mock<IWarehouseStorageContract> _warehouseStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _supplyStorageContract = new Mock<ISupplyStorageContract>();
+        _warehouseStorageContract = new Mock<IWarehouseStorageContract>();
+        _supplyBusinessLogicContract = new SupplyBusinessLogicContract(_supplyStorageContract.Object, _warehouseStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _supplyStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllSuppliesByPeriod_ReturnListOfRecords_Test()
+    {
+        var date = DateTime.UtcNow;
+        // Arrange
+        var listOriginal = new List<SupplyDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), DateTime.Now, []),
+            new(Guid.NewGuid().ToString(), DateTime.Now, []),
+            new(Guid.NewGuid().ToString(), DateTime.Now, [])
+        };
+        _supplyStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>())).Returns(listOriginal);
+        // Act
+        var list = _supplyBusinessLogicContract.GetAllSuppliesByPeriod(date, date.AddDays(1));
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _supplyStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _supplyStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _supplyBusinessLogicContract.GetAllSuppliesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByPeriod(date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByPeriod(date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSuppliesByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _supplyStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var cocktailId = Guid.NewGuid().ToString();
+        var listOriginal = new List<SupplyDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), DateTime.Now,
+                [new SupplyCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), DateTime.Now, []),
+            new(Guid.NewGuid().ToString(), DateTime.Now, []),
+        };
+        _supplyStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(cocktailId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _supplyStorageContract.Verify(x => x.GetList(date, date.AddDays(1), cocktailId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _supplyStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_CocktailIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_CocktailIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod("cocktailId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSuppliesByCocktailByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _supplyStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetAllSuppliesByCocktailByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _supplyStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetSupplyByData_GetById_ReturnRecord_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new SupplyDataModel(id, DateTime.Now, []);
+        _supplyStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        // Act
+        var element = _supplyBusinessLogicContract.GetSupplyByData(id);
+        // Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _supplyStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSupplyByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetSupplyByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _supplyBusinessLogicContract.GetSupplyByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _supplyStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetSupplyByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        // Arrange
+        _supplyStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetSupplyByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _supplyStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetSuppliesByData_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _supplyStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _supplyBusinessLogicContract.GetSupplyByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _supplyStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupply_CorrectRecord_Test()
+    {
+        // Arrange
+        var supplyId = Guid.NewGuid().ToString();
+        var cocktailId = Guid.NewGuid().ToString();
+        var warehouseId = Guid.NewGuid().ToString();
+
+        var record = new SupplyDataModel(supplyId, DateTime.Now,
+            [new SupplyCocktailDataModel(supplyId, cocktailId, 5)]);
+
+        var warehouse = new WarehouseDataModel(warehouseId, "Main Warehouse",
+            [new WarehouseCocktailDataModel(warehouseId, cocktailId, 10)]);
+
+        _supplyStorageContract.Setup(x => x.AddElement(It.IsAny<SupplyDataModel>()));
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns([warehouse]);
+        _warehouseStorageContract.Setup(x => x.UpdWarehouseOnSupply(warehouseId, cocktailId, 5));
+
+        // Act
+        _supplyBusinessLogicContract.InsertSupply(record);
+
+        // Assert
+        _supplyStorageContract.Verify(x => x.AddElement(It.IsAny<SupplyDataModel>()), Times.Once);
+        _warehouseStorageContract.Verify(x => x.UpdWarehouseOnSupply(warehouseId, cocktailId, 5), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupply_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _supplyStorageContract.Setup(x => x.AddElement(It.IsAny<SupplyDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _supplyBusinessLogicContract.InsertSupply(new(Guid.NewGuid().ToString(), DateTime.Now,
+            [new SupplyCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _supplyStorageContract.Verify(x => x.AddElement(It.IsAny<SupplyDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertSupply_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _supplyBusinessLogicContract.InsertSupply(null), Throws.TypeOf<ArgumentNullException>());
+        _supplyStorageContract.Verify(x => x.AddElement(It.IsAny<SupplyDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertSupply_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _supplyBusinessLogicContract.InsertSupply(new SupplyDataModel("id", DateTime.UtcNow, [])), Throws.TypeOf<ValidationException>());
+        _supplyStorageContract.Verify(x => x.AddElement(It.IsAny<SupplyDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertSupply_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _supplyStorageContract.Setup(x => x.AddElement(It.IsAny<SupplyDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _supplyBusinessLogicContract.InsertSupply(new(Guid.NewGuid().ToString(), DateTime.Now,
+            [new SupplyCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _supplyStorageContract.Verify(x => x.AddElement(It.IsAny<SupplyDataModel>()), Times.Once);
+    }
+
+}

SquirrelContract/SquirrelTests/BusinessLogicContractsTests/WarehouseBusinessLogicContractTests.cs

@@ -0,0 +1,320 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using SquirrelBusinessLogic.Implementations;
+using SquirrelContract.BusinessLogicContracts;
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+using SquirrelContract.StoragesContracts;
+
+namespace SquirrelTests.BusinessLogicContractsTests;
+
+[TestFixture]
+internal class WarehouseBusinessLogicContractTests
+{
+    private WarehouseBusinessLogicContract _warehouseBusinessLogicContract;
+    private Mock<IWarehouseStorageContract> _warehouseStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _warehouseStorageContract = new Mock<IWarehouseStorageContract>();
+        _warehouseBusinessLogicContract = new WarehouseBusinessLogicContract(_warehouseStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _warehouseStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllWarehouses_ReturnListOfRecords_Test()
+    {
+        // Arrange
+        var listOriginal = new List<WarehouseDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "aba", []),
+            new(Guid.NewGuid().ToString(), "aaa", []),
+            new(Guid.NewGuid().ToString(), "aaa", []),
+        };
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        // Act
+        var list = _warehouseBusinessLogicContract.GetAllWarehouses();
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+
+    [Test]
+    public void GetAllWarehouses_ReturnEmptyList_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns([]);
+        // Act
+        var list = _warehouseBusinessLogicContract.GetAllWarehouses();
+        // Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _warehouseStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWarehouses_ReturnNull_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetList()).Returns((List<WarehouseDataModel>)null);
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetAllWarehouses(), Throws.TypeOf<NullListException>());
+        _warehouseStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWarehouses_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetAllWarehouses(), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+
+    [Test]
+    public void GetAllWarehousesByData_GetById_ReturnRecord_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new WarehouseDataModel(id, "aba", []);
+        _warehouseStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        // Act
+        var element = _warehouseBusinessLogicContract.GetWarehouseByData(id);
+        // Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetCocktailByData_GetByName_ReturnRecord_Test()
+    {
+        //Arrange
+        var name = "name";
+        var record = new WarehouseDataModel(Guid.NewGuid().ToString(), name, []);
+        _warehouseStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
+        //Act
+        var element = _warehouseBusinessLogicContract.GetWarehouseByData(name);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Name, Is.EqualTo(name));
+        _warehouseStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetWarehouseByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetWarehouseByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _warehouseBusinessLogicContract.GetWarehouseByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+        _warehouseStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetWarehouseByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetWarehouseByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetWarehouseByData_GetByName_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetWarehouseByData("name"), Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetWarehouseByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _warehouseStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _warehouseStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.GetWarehouseByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _warehouseBusinessLogicContract.GetWarehouseByData("name"), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _warehouseStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertWarehouse_CorrectRecord_Test()
+    {
+        // Arrange
+        var record = new WarehouseDataModel(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _warehouseStorageContract.Setup(x => x.AddElement(It.IsAny<WarehouseDataModel>()));
+        // Act
+        _warehouseBusinessLogicContract.InsertWarehouse(record);
+        // Assert
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertWarehouse_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.AddElement(It.IsAny<WarehouseDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertWarehouse(new(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertWarehouse_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertWarehouse(null), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<WarehouseDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertWarehouse_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertWarehouse(new WarehouseDataModel("id", "aba", [])), Throws.TypeOf<ValidationException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<WarehouseDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertWarehouse_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.AddElement(It.IsAny<WarehouseDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.InsertWarehouse(new(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.AddElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateWarehouse_CorrectRecord_Test()
+    {
+        // Arrange
+        var record = new WarehouseDataModel(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<WarehouseDataModel>()));
+        // Act
+        _warehouseBusinessLogicContract.UpdateWarehouse(record);
+        // Assert
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateWarehouse_RecordWithIncorrectData_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<WarehouseDataModel>())).Throws(new ElementNotFoundException(""));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateWarehouse(new(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateWarehouse_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<WarehouseDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateWarehouse(new(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateWarehouse_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateWarehouse(null), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<WarehouseDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateWarehouse_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateWarehouse(new WarehouseDataModel(Guid.NewGuid().ToString(), "aba", [])), Throws.TypeOf<ValidationException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<WarehouseDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateWarehouse_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _warehouseStorageContract.Setup(x => x.UpdElement(It.IsAny<WarehouseDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        // Act & Assert
+        Assert.That(() => _warehouseBusinessLogicContract.UpdateWarehouse(new(Guid.NewGuid().ToString(), "aba",
+            [new WarehouseCocktailDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.UpdElement(It.IsAny<WarehouseDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteWarehouse_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _warehouseStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _warehouseBusinessLogicContract.DeleteWarehouse(id);
+        //Assert
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once); Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteWarehouse_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _warehouseStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteWarehouse(Guid.NewGuid().ToString()),
+        Throws.TypeOf<ElementNotFoundException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteWarehouse_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteWarehouse(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteWarehouse(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteWarehouse_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteWarehouse("id"),
+        Throws.TypeOf<ValidationException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteWarehouse_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _warehouseStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _warehouseBusinessLogicContract.DeleteWarehouse(Guid.NewGuid().ToString()),
+        Throws.TypeOf<StorageException>());
+        _warehouseStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+}

SquirrelContract/SquirrelTests/DataModelsTests/PostDataModelTests.cs

@@ -10,41 +10,41 @@ internal class PostDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var post = CreateDataModel(null, "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel(null, "name", PostType.Manager, 10);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(string.Empty, "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        post = CreateDataModel(string.Empty, "name", PostType.Manager, 10);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var post = CreateDataModel("id", "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel("id", "name", PostType.Manager, 10);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void PostNameIsEmptyTest()
     {
-        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null, PostType.Manager, 10, true, DateTime.UtcNow);
+        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null, PostType.Manager, 10);
         Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
-        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, PostType.Manager, 10, true, DateTime.UtcNow);
+        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, PostType.Manager, 10);
         Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void PostTypeIsNoneTest()
     {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.None, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.None, 10);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void SalaryIsLessOrZeroTest()
     {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 0, true, DateTime.UtcNow);
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, 0);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, -10, true, DateTime.UtcNow);
+        post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Manager, -10);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
@@ -55,9 +55,7 @@ internal class PostDataModelTests
         var postName = "name";
         var postType = PostType.Manager;
         var salary = 10;
-        var isActual = false;
-        var changeDate = DateTime.UtcNow.AddDays(-1);
-        var post = CreateDataModel(postId, postName, postType, salary, isActual, changeDate);
+        var post = CreateDataModel(postId, postName, postType, salary);
         Assert.That(() => post.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
@@ -65,11 +63,9 @@ internal class PostDataModelTests
             Assert.That(post.PostName, Is.EqualTo(postName));
             Assert.That(post.PostType, Is.EqualTo(postType));
             Assert.That(post.Salary, Is.EqualTo(salary));
-            Assert.That(post.IsActual, Is.EqualTo(isActual));
-            Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
         });
     }
 
-    private static PostDataModel CreateDataModel(string? id, string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
-        new(id, postName, postType, salary, isActual, changeDate);
+    private static PostDataModel CreateDataModel(string? id, string? postName, PostType postType, double salary) =>
+        new(id, postName, postType, salary);
 }

SquirrelContract/SquirrelTests/DataModelsTests/SaleCocktailDataModelTests.cs

@@ -9,41 +9,50 @@ internal class SaleCocktailDataModelTests
     [Test]
     public void SaleIdIsNullOrEmptyTest()
     {
-        var saleCocktail = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+        var saleCocktail = CreateDataModel(null, Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
-        saleCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        saleCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void SaleIdIsNotGuidTest()
     {
-        var saleProduct = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10);
-        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+        var saleCocktail = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10, 1.1);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void CocktailIdIsNullOrEmptyTest()
     {
-        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 10, 1.1);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
-        saleCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        saleCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, 1.1);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
-    public void ProductIdIsNotGuidTest()
+    public void CocktailIdIsNotGuidTest()
     {
-        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10);
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), "cocktailId", 10, 1.1);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void CountIsLessOrZeroTest()
     {
-        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, 1.1);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
-        saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+        saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, 1.1);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PriceIsLessOrZeroTest()
+    {
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 0);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, -10);
         Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
     }
 
@@ -53,16 +62,18 @@ internal class SaleCocktailDataModelTests
         var saleId = Guid.NewGuid().ToString();
         var cocktailId = Guid.NewGuid().ToString();
         var count = 10;
-        var saleCocktail = CreateDataModel(saleId, cocktailId, count);
+        var price = 1.2;
+        var saleCocktail = CreateDataModel(saleId, cocktailId, count, price);
         Assert.That(() => saleCocktail.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
             Assert.That(saleCocktail.SaleId, Is.EqualTo(saleId));
             Assert.That(saleCocktail.CocktailId, Is.EqualTo(cocktailId));
             Assert.That(saleCocktail.Count, Is.EqualTo(count));
+            Assert.That(saleCocktail.Price, Is.EqualTo(price));
         });
     }
 
-    private static SaleCocktailDataModel CreateDataModel(string? saleId, string? cocktailId, int count) =>
-        new(saleId, cocktailId, count);
+    private static SaleCocktailDataModel CreateDataModel(string? saleId, string? cocktailId, int count, double price) =>
+        new(saleId, cocktailId, count, price);
 }

SquirrelContract/SquirrelTests/DataModelsTests/SaleDataModelTests.cs

@@ -10,88 +10,120 @@ internal class SaleDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
     [Test]
     public void EmployeeIdIsNullOrEmptyTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void EmployeeIdIsNotGuidTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void ClientIdIsNotGuidTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "clientId", 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
-        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-    }
-
-    [Test]
-    public void SumIsLessOrZeroTest()
-    {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, DiscountType.OnSale, 10, false, CreateSubDataModel());
-        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "clientId", DiscountType.OnSale, false, CreateSubDataModel());
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void CocktailsIsNullOrEmptyTest()
     {
-        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, null);
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, null);
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, []);
+        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, []);
         Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
     }
 
+    [Test]
+    public void CalcSumAndDiscountTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var employeeId = Guid.NewGuid().ToString();
+        var clientId = Guid.NewGuid().ToString();
+        var cocktails = new List<SaleCocktailDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 2, 1.1),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 1.3)
+        };
+        var isCancel = false;
+        var totalSum = cocktails.Sum(x => x.Price * x.Count);
+        var saleNone = CreateDataModel(saleId, employeeId, clientId, DiscountType.None, isCancel, cocktails);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleNone.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleNone.Discount, Is.EqualTo(0));
+        });
+        var saleOnSale = CreateDataModel(saleId, employeeId, clientId, DiscountType.OnSale, isCancel, cocktails);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleOnSale.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleOnSale.Discount, Is.EqualTo(totalSum * 0.1));
+        });
+        var saleRegularCustomer = CreateDataModel(saleId, employeeId, clientId, DiscountType.RegularCustomer, isCancel, cocktails);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleRegularCustomer.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleRegularCustomer.Discount, Is.EqualTo(totalSum * 0.5));
+        });
+        var saleCertificate = CreateDataModel(saleId, employeeId, clientId, DiscountType.Certificate, isCancel, cocktails);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleCertificate.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleCertificate.Discount, Is.EqualTo(totalSum * 0.3));
+        });
+        var saleMulty = CreateDataModel(saleId, employeeId, clientId, DiscountType.Certificate | DiscountType.RegularCustomer, isCancel, cocktails);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleMulty.Sum, Is.EqualTo(totalSum));
+            Assert.That(saleMulty.Discount, Is.EqualTo(totalSum * 0.8));
+        });
+    }
+
     [Test]
     public void AllFieldsIsCorrectTest()
     {
         var saleId = Guid.NewGuid().ToString();
         var employeeId = Guid.NewGuid().ToString();
         var clientId = Guid.NewGuid().ToString();
-        var sum = 10;
         var discountType = DiscountType.Certificate;
-        var discount = 1;
         var isCancel = true;
         var cocktails = CreateSubDataModel();
-        var sale = CreateDataModel(saleId, employeeId, clientId, sum, discountType, discount, isCancel, cocktails);
+        var sale = CreateDataModel(saleId, employeeId, clientId, discountType, isCancel, cocktails);
         Assert.That(() => sale.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
             Assert.That(sale.Id, Is.EqualTo(saleId));
             Assert.That(sale.EmployeeId, Is.EqualTo(employeeId));
             Assert.That(sale.ClientId, Is.EqualTo(clientId));
-            Assert.That(sale.Sum, Is.EqualTo(sum));
             Assert.That(sale.DiscountType, Is.EqualTo(discountType));
-            Assert.That(sale.Discount, Is.EqualTo(discount));
             Assert.That(sale.IsCancel, Is.EqualTo(isCancel));
             Assert.That(sale.Cocktails, Is.EquivalentTo(cocktails));
         });
     }
 
-    private static SaleDataModel CreateDataModel(string? id, string? employeeId, string? clientId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleCocktailDataModel>? cocktails) =>
-        new(id, employeeId, clientId, sum, discountType, discount, isCancel, cocktails);
+    private static SaleDataModel CreateDataModel(string? id, string? employeeId, string? clientId, DiscountType discountType, bool isCancel, List<SaleCocktailDataModel>? cocktails) =>
+        new(id, employeeId, clientId, discountType, isCancel, cocktails);
 
     private static List<SaleCocktailDataModel> CreateSubDataModel()
-        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 1.1)];
 }

SquirrelContract/SquirrelTests/DataModelsTests/SupplyCocktailDataModelTests.cs

@@ -0,0 +1,68 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[TestFixture]
+internal class SupplyCocktailDataModelTests
+{
+    [Test]
+    public void SupplyIdIsNullOrEmptyTest()
+    {
+        var supplyCocktail = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        supplyCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SupplyIdIsNotGuidTest()
+    {
+        var supplyCocktail = CreateDataModel("SupplyId", Guid.NewGuid().ToString(), 10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CocktailIdIsNullOrEmptyTest()
+    {
+        var supplyCocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        supplyCocktail = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CocktailIdIsNotGuidTest()
+    {
+        var supplyCocktail = CreateDataModel(Guid.NewGuid().ToString(), "ComponentId", 10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var supplyCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        supplyCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+        Assert.That(() => supplyCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var cocktailId = Guid.NewGuid().ToString();
+        var supplyId = Guid.NewGuid().ToString();
+        var count = 5;
+        var supplyCocktail = CreateDataModel(supplyId, cocktailId, count);
+        Assert.That(() => supplyCocktail.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(supplyCocktail.SupplyId, Is.EqualTo(supplyId));
+            Assert.That(supplyCocktail.CocktailId, Is.EqualTo(cocktailId));
+            Assert.That(supplyCocktail.Count, Is.EqualTo(count));
+        });
+    }
+
+    private static SupplyCocktailDataModel CreateDataModel(string? supplyId, string? cocktailId, int count) =>
+        new(supplyId, cocktailId, count);
+}