7 лаба

6 лаба
Правки к реализации задания
2025-05-21 11:10:50 +04:00 · 2025-05-18 19:48:37 +04:00 · 2025-04-23 09:10:59 +04:00 · 2025-04-22 20:34:08 +04:00 · 2025-04-22 17:33:30 +04:00 · 2025-04-08 15:26:39 +04:00
205 changed files with 20515 additions and 1 deletions
--- a/TopazContracts/.dockerignore
+++ b/TopazContracts/.dockerignore
@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**
--- a/TopazContracts/TopazBusinessLogic/Emplementations/BuyerBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/BuyerBusinessLogicContracts.cs
@@ -0,0 +1,75 @@
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+
+namespace TopazBusinessLogic.Emplementations;
+internal class BuyerBusinessLogicContracts (IBuyerStorageContract buyerStorageContract, IStringLocalizer<Messages> localizer, ILogger logger) : IBuyerBusinessLogicContracts
+
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private IBuyerStorageContract _buyerStorageContract = buyerStorageContract;
+
+    public List<BuyerDataModel> GetAllBuyers()
+    { 
+        _logger.LogInformation("GetAllBuyers");
+        return _buyerStorageContract.GetList();
+    }
+    public BuyerDataModel GetBuyerByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _buyerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data, _localizer);
+        }
+        if (Regex.IsMatch(data, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+        {
+            return _buyerStorageContract.GetElementByPhoneNumber(data) ?? throw new ElementNotFoundException(data, _localizer);
+        }
+        return _buyerStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data, _localizer);
+    }
+    public void InsertBuyer(BuyerDataModel buyerDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(buyerDataModel));
+        ArgumentNullException.ThrowIfNull(buyerDataModel);
+        buyerDataModel.Validate(_localizer);
+        _buyerStorageContract.AddElement(buyerDataModel);
+    }
+    public void UpdateBuyer(BuyerDataModel buyerDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(buyerDataModel));
+        ArgumentNullException.ThrowIfNull(buyerDataModel);
+        buyerDataModel.Validate(_localizer);
+        _buyerStorageContract.UpdElement(buyerDataModel);
+    }
+    public void DeleteBuyer(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _buyerStorageContract.DelElement(id);
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/ManufactureBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/ManufactureBusinessLogicContracts.cs
@@ -0,0 +1,70 @@
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class ManufactureBusinessLogicContracts (IManufactureStorageContract manufacturerStorageContract, IStringLocalizer<Messages> localizer, ILogger logger) : IManufactureBusinessLogicContracts
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private readonly IManufactureStorageContract _manufacturerStorageContract = manufacturerStorageContract;
+    public List<ManufactureDataModels> GetAllManufacture()
+    {
+        _logger.LogInformation("GetAllManufacturers");
+        return _manufacturerStorageContract.GetList();
+    }
+    public ManufactureDataModels GetManufactureDataModelsByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _manufacturerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data, _localizer);
+        }
+        return _manufacturerStorageContract.GetElementByName(data) ?? _manufacturerStorageContract.GetElementByOldName(data) ??
+            throw new ElementNotFoundException(data, _localizer);
+    }
+    public void InsertManufacture(ManufactureDataModels manufactureDataModel)
+    {
+       _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(manufactureDataModel));
+        ArgumentNullException.ThrowIfNull(manufactureDataModel);
+        manufactureDataModel.Validate(_localizer);
+        _manufacturerStorageContract.AddElement(manufactureDataModel);
+    }
+    public void UpdateManufacture(ManufactureDataModels manufactureDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(manufactureDataModel));
+        ArgumentNullException.ThrowIfNull(manufactureDataModel);
+        manufactureDataModel.Validate(_localizer);
+        _manufacturerStorageContract.UpdElement(manufactureDataModel);
+    } 
+    public void DeleteManufacture(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _manufacturerStorageContract.DelElement(id);
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/PostBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/PostBusinessLogicContracts.cs
@@ -0,0 +1,100 @@
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Enums;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class PostBusinessLogicContracts(IPostStorageContract postStorageContract, IStringLocalizer<Messages> localizer, ILogger logger) : IPostBusinessLogicContracts
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+    public List<PostDataModel> GetAllDataOfPost(string postId)
+    {
+        _logger.LogInformation("GetAllDataOfPost for {postId}", postId);
+        if (postId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(postId));
+        }
+        if (!postId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "PostId"));
+        }
+        return _postStorageContract.GetPostWithHistory(postId);
+    }
+
+    public List<PostDataModel> GetAllPosts()
+    {
+        _logger.LogInformation("GetAllPosts");
+        return _postStorageContract.GetList();
+    }
+
+    public PostDataModel GetPostByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _postStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data, _localizer);
+        }
+        return _postStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data, _localizer);
+    }
+
+    public void InsertPost(PostDataModel postDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(postDataModel));
+        ArgumentNullException.ThrowIfNull(postDataModel);
+        postDataModel.Validate(_localizer);
+        _postStorageContract.AddElement(postDataModel);
+    }
+
+    public void UpdatePost(PostDataModel postDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(postDataModel));
+        ArgumentNullException.ThrowIfNull(postDataModel);
+        postDataModel.Validate(_localizer);
+        _postStorageContract.UpdElement(postDataModel);
+    }
+    public void DeletePost(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _postStorageContract.DelElement(id);
+    }
+    public void RestorePost(string id)
+    {
+        _logger.LogInformation("Restore by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _postStorageContract.ResElement(id);
+    }
+
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/ProductBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/ProductBusinessLogicContracts.cs
@@ -0,0 +1,97 @@
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Enums;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class ProductBusinessLogicContracts(IProductStorageContract productStorageContract, IStringLocalizer<Messages> localizer, ILogger logger) : IProductBusinessLogicContracts
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private readonly IProductStorageContract _productStorageContract = productStorageContract;
+    public List<ProductDataModel> GetAllProducts(bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllProducts params: {onlyActive}", onlyActive);
+        return _productStorageContract.GetList(onlyActive);
+    }
+
+    public List<ProductDataModel> GetAllProductsByManufacturer(string manufacturerId, bool onlyActive = true)
+    {
+        if (manufacturerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(manufacturerId));
+        }
+        if (!manufacturerId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "ManufacturerId"));
+        }
+        _logger.LogInformation("GetAllProducts params: {manufacturerId}, {onlyActive}", manufacturerId, onlyActive);
+        return _productStorageContract.GetList(onlyActive, manufacturerId);
+    }
+    public List<ProductHistoryDataModel> GetProductHistoryByProduct(string productId)
+    {
+        _logger.LogInformation("GetProductHistoryByProduct for {productId}", productId);
+        if (productId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(productId));
+        }
+        if (!productId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "ProductId"));
+        }
+        return _productStorageContract.GetHistoryByProductId(productId);
+    }
+    public ProductDataModel GetProductByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _productStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data, _localizer);
+        }
+        return _productStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data, _localizer);
+    }
+    public void InsertProduct(ProductDataModel productDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(productDataModel));
+        ArgumentNullException.ThrowIfNull(productDataModel);
+        productDataModel.Validate(_localizer);
+        _productStorageContract.AddElement(productDataModel);
+    }
+    public void UpdateProduct(ProductDataModel productDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(productDataModel));
+        ArgumentNullException.ThrowIfNull(productDataModel);
+        productDataModel.Validate(_localizer);
+        _productStorageContract.UpdElement(productDataModel);
+    }
+    public void DeleteProduct(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _productStorageContract.DelElement(id);
+    }
+
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/ReportContract.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/ReportContract.cs
@@ -0,0 +1,149 @@
+using DocumentFormat.OpenXml.Wordprocessing;
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazBusinessLogic.OfficePackage;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class ReportContract : IReportContract
+{
+    private readonly IProductStorageContract _productStorageContract;
+
+    private readonly ISaleStorageContract _saleStorageContract;
+
+    private readonly ISalaryStorageContract _salaryStorageContract;
+
+    private readonly BaseWordBuilder _baseWordBuilder;
+
+    private readonly BaseExcelBuilder _baseExcelBuilder;
+
+    private readonly BasePdfBuilder _basePdfBuilder;
+
+    private readonly ILogger _logger;
+    private readonly IStringLocalizer<Messages> _localizer;
+
+    internal readonly string[] _documentHeader;
+    internal readonly string[] _tableHeader;
+
+    public ReportContract(IProductStorageContract productStorageContract, ISaleStorageContract saleStorageContract, ISalaryStorageContract salaryStorageContract, BaseWordBuilder baseWordBuilder, BaseExcelBuilder baseExcelBuilder, BasePdfBuilder basePdfBuilder,  IStringLocalizer<Messages> localizer, ILogger logger)
+    {
+        _logger = logger;
+        _baseWordBuilder = baseWordBuilder;
+        _saleStorageContract = saleStorageContract;
+        _productStorageContract = productStorageContract;
+        _salaryStorageContract = salaryStorageContract;
+        _baseExcelBuilder = baseExcelBuilder;
+        _basePdfBuilder = basePdfBuilder;
+        _localizer = localizer;
+
+        _documentHeader = [_localizer["DocumentDocCaptionManufacturer"], _localizer["DocumentDocCaptionComponent"]];
+        _tableHeader = [_localizer["DocumentExcelCaptionDate"], _localizer["DocumentExcelCaptionSum"],
+            _localizer["DocumentExcelCaptionDiscount"], _localizer["DocumentExcelCaptionProduct"], _localizer["DocumentExcelCaptionCount"]];
+    }
+
+    public async Task<Stream> CreateDocumentProductsByManufacturerAsync(CancellationToken ct)
+    {
+        _logger.LogInformation("Create report ProductsByManufacturer");
+        var data = await GetDataByProductsAsync(ct);
+        var componentHistory = data
+            .SelectMany(x => x.Products)
+            .Distinct()
+            .ToDictionary(c => c, c => _productStorageContract.GetHistoryByProductId(c.Item1));
+
+        if (componentHistory.Any(h => h.Value != null))
+        {
+            var tableData = data.SelectMany(x =>
+            new List<string[]> { new string[] { x.ManufacturerName, "" } }
+                .Union(x.Products.SelectMany(y =>
+                    new List<string[]> { new string[] { "", y.Item2 } }
+                    .Union(componentHistory[y].Where(h => h != null).Select(h => new string[] { "", $"История: {h.ChangeDate.ToShortDateString()} - {h.OldPrice}" }))
+                ))
+            ).ToList();
+
+            return _baseWordBuilder
+            .AddHeader(_localizer["DocumentDocHeader"])
+            .AddParagraph(string.Format(_localizer["DocumentDocSubHeader"], DateTime.Now))
+            .AddTable(new int[] { 10, 20 }, tableData)
+            .AddTable(new int[] { 10, 20 }, new List<string[]> { new string[] { "Производитель", "Компонент/История" } }.Union(tableData).ToList())
+            .Build();
+        }
+        else
+        {
+            return _baseWordBuilder
+                .AddHeader(_localizer["DocumentDocHeader"])
+                .AddParagraph(string.Format(_localizer["DocumentDocSubHeader"], DateTime.Now))
+                .AddTable([10, 20], [.. data.SelectMany(x => new List<string[]>() { new string[] { x.ManufacturerName, "" } }.Union(x.Products.Select(y => new string[] { "", y.Item2 })))])
+                .Build();
+        }
+    }
+
+    public async Task<Stream> CreateDocumentSalesByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct)
+    {
+        _logger.LogInformation("Create report SalesByPeriod from {dateStart} to {dateFinish}", dateStart, dateFinish);
+        var data = await GetDataBySalesAsync(dateStart, dateFinish, ct) ?? throw new InvalidOperationException("No found data");
+        return _baseExcelBuilder
+            .AddHeader("Продажи за период", 0, 5)
+            .AddParagraph($"c {dateStart.ToShortDateString()} по {dateFinish.ToShortDateString()}", 2)
+            .AddTable([10, 10, 10, 10, 10], [.. new List<string[]>() { _tableHeader }.Union(data.SelectMany(x => (new List<string[]>() { new string[] { x.SaleDate.ToShortDateString(), x.Sum.ToString("N2"), x.Discount.ToString("N2"), "", "" } }).Union(x.Products!.Select(y => new string[] { "", "", "", y.ProductName, y.Count.ToString("N2") })).ToArray())).Union([["Всего", data.Sum(x => x.Sum).ToString("N2"), data.Sum(x => x.Discount).ToString("N2"), "", ""]])])
+            .Build();
+
+    }
+
+    public async Task<Stream> CreateDocumentSalaryByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct)
+    {
+        _logger.LogInformation("Create report SalaryByPeriod from {dateStart} to {dateFinish}", dateStart, dateFinish);
+        var data = await GetDataBySalaryAsync(dateStart, dateFinish, ct) ?? throw new InvalidOperationException("No found data");
+        return _basePdfBuilder
+            .AddHeader("Зарплатная ведомость")
+            .AddParagraph($"за период с {dateStart.ToShortDateString()} по {dateFinish.ToShortDateString()}")
+            .AddPieChart("Начисления", [.. data.Select(x => (x.WorkerFIO, x.TotalSalary))])
+            .Build();
+    }
+
+    public Task<List<ManufacturerProductDataModel>> GetDataProductsByManufacturerAsync(CancellationToken ct)
+    {
+        _logger.LogInformation("Get data ProductsByManufacturer");
+        return GetDataByProductsAsync(ct);
+    }
+
+    public Task<List<SaleDataModel>> GetDataSaleByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct)
+    {
+        _logger.LogInformation("Get data SalesByPeriod from {dateStart} to {dateFinish}", dateStart, dateFinish);
+        return GetDataBySalesAsync(dateStart, dateFinish, ct);
+    }
+    public Task<List<WorkerSalaryByPeriodDataModel>> GetDataSalaryByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct)
+    {
+        _logger.LogInformation("Get data SalaryByPeriod from {dateStart} to {dateFinish}", dateStart, dateFinish);
+        return GetDataBySalaryAsync(dateStart, dateFinish, ct);
+    }
+
+    private async Task<List<ManufacturerProductDataModel>> GetDataByProductsAsync(CancellationToken ct) => [.. (await _productStorageContract.GetListAsync(ct)).GroupBy(x => x.ManufacturerName).Select(x => new ManufacturerProductDataModel { ManufacturerName = x.Key, Products = [.. x.Select(y => (y.Id, y.ProductName))] })];
+    private async Task<List<SaleDataModel>> GetDataBySalesAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct)
+    {
+        if (dateStart.IsDateNotOlder(dateFinish))
+        {
+            throw new IncorrectDatesException(dateStart, dateFinish, _localizer);
+        }
+        return [.. (await _saleStorageContract.GetListAsync(dateStart, dateFinish, ct)).OrderBy(x => x.SaleDate)];
+    }
+
+    private async Task<List<WorkerSalaryByPeriodDataModel>> GetDataBySalaryAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct)
+    {
+        if (dateStart.IsDateNotOlder(dateFinish))
+        {
+            throw new IncorrectDatesException(dateStart, dateFinish, _localizer);
+        }
+        return [.. (await _salaryStorageContract.GetListAsync(dateStart, dateFinish, ct)).GroupBy(x => x.WorkerId).Select(x => new WorkerSalaryByPeriodDataModel { WorkerFIO = x.FirstOrDefault(y => y.WorkerId == x.Key)?.WorkerFIO ?? "Неизвестный", TotalSalary = x.Sum(y => y.Salary), FromPeriod = x.Min(y => y.SalaryDate), ToPeriod = x.Max(y => y.SalaryDate) }).OrderBy(x => x.WorkerFIO)];
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/SalaryBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/SalaryBusinessLogicContracts.cs
@@ -0,0 +1,132 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Infrastructure.PostConfigurations;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class SalaryBusinessLogicContracts(ISalaryStorageContract salaryStorageContract,
+    ISaleStorageContract saleStorageContract, IPostStorageContract postStorageContract, IWorkerStorageContract workerStorageContract, IStringLocalizer<Messages> localizer, ILogger logger, IConfigurationSalary сonfiguration) : ISalaryBusinessLogicContracts
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private readonly ISalaryStorageContract _salaryStorageContract = salaryStorageContract;
+    private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+    private readonly IWorkerStorageContract _workerStorageContract = workerStorageContract;
+    private readonly IConfigurationSalary _salaryConfiguration = сonfiguration;
+    private readonly Lock _lockObject = new();
+    public List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}", fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        return _salaryStorageContract.GetList(fromDate, toDate);
+    }
+    public List<SalaryDataModel> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId)
+    {
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        if (workerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(workerId));
+        }
+        if (!workerId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "WorkerId"));
+        }
+        _logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}, {workerId}", fromDate, toDate, workerId);
+        return _salaryStorageContract.GetList(fromDate, toDate, workerId);
+    }
+    public void CalculateSalaryByMounth(DateTime date)
+    {
+        _logger.LogInformation("CalculateSalaryByMounth: {date}", date);
+        var startDate = new DateTime(date.Year, date.Month, 1);
+        var finishDate = new DateTime(date.Year, date.Month, DateTime.DaysInMonth(date.Year, date.Month));
+        var workers = _workerStorageContract.GetList();
+        foreach (var worker in workers)
+        {
+            var sales = _saleStorageContract.GetList(startDate, finishDate, workerId: worker.Id);
+            var post = _postStorageContract.GetElementById(worker.PostId);
+            var salary = post.ConfigurationModel switch
+            {
+                null => 0,
+                CashierPostConfiguration cpc => CalculateSalaryForCashier(sales, startDate, finishDate, cpc),
+                SupervisorPostConfiguration spc => CalculateSalaryForSupervisor(startDate, finishDate, spc),
+                PostConfiguration pc => pc.Rate,
+            };
+            _logger.LogDebug("The employee {workerId} was paid a salary of {salary}", worker.Id, salary);
+            _salaryStorageContract.AddElement(new SalaryDataModel(worker.Id, finishDate, salary));
+        }
+    }
+    private double CalculateSalaryForCashier(List<SaleDataModel> sales, DateTime startDate, DateTime finishDate, CashierPostConfiguration config)
+    {
+        var calcPercent = 0.0;
+        var days = (finishDate - startDate).Days;
+        var dates = Enumerable.Range(0, days)
+                             .Select(offset => startDate.AddDays(offset))
+                             .ToList();
+
+        var parallelOptions = new ParallelOptions
+        {
+            MaxDegreeOfParallelism = _salaryConfiguration.MaxConcurrentThreads
+        };
+
+        Parallel.ForEach(dates, parallelOptions, date =>
+        {
+            var salesInDay = sales.Where(x => x.SaleDate.Date == date.Date).ToArray();
+            if (salesInDay.Length == 0) return;
+
+            double dailySum = salesInDay.Sum(x => x.Sum);
+            double averageSale = dailySum / salesInDay.Length;
+
+            lock (_lockObject)
+            {
+                calcPercent += averageSale * config.SalePercent;
+            }
+        });
+
+        double bonus = 0;
+        try
+        {
+            bonus = sales.Where(x => x.Sum > _salaryConfiguration.ExtraSaleSum)
+                         .Sum(x => x.Sum) * config.BonusForExtraSales;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error in bonus calculation");
+        }
+
+        return config.Rate + calcPercent + bonus;
+    }
+
+    private double CalculateSalaryForSupervisor(DateTime startDate, DateTime finishDate, SupervisorPostConfiguration config)
+    {
+        try
+        {
+            return config.Rate + config.PersonalCountTrendPremium * _workerStorageContract.GetWorkerTrend(startDate, finishDate);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error in the supervisor payroll process");
+            return 0;
+        }
+    }
+
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/SaleBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/SaleBusinessLogicContracts.cs
@@ -0,0 +1,124 @@
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Enums;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class SaleBusinessLogicContracts(ISaleStorageContract saleStorageContract, IStringLocalizer<Messages> localizer, ILogger logger) : ISaleBusinessLogicContracts
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+
+    public List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {fromDate}, {toDate}", fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        return _saleStorageContract.GetList(fromDate, toDate);
+    }
+
+    public List<SaleDataModel> GetAllSalesByWorkerByPeriod(string workerId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {workerId}, {fromDate}, {toDate}", workerId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        if (workerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(workerId));
+        }
+        if (!workerId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "WorkerId"));
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, workerId: workerId);
+    }
+    public List<SaleDataModel> GetAllSalesByBuyerByPeriod(string buyerId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {buyerId}, {fromDate}, {toDate}", buyerId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        if (buyerId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(buyerId));
+        }
+        if (!buyerId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "BuyerId"));
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, buyerId: buyerId);
+
+    }
+    public List<SaleDataModel> GetAllSalesByProductByPeriod(string productId, DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {productId}, {fromDate}, {toDate}", productId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        if (productId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(productId));
+        }
+        if (!productId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "ProductId"));
+        }
+        return _saleStorageContract.GetList(fromDate, toDate, productId: productId);
+    }
+
+
+    public SaleDataModel GetSaleByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (!data.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        return _saleStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data, _localizer);
+    }
+
+    public void InsertSale(SaleDataModel saleDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(saleDataModel));
+        ArgumentNullException.ThrowIfNull(saleDataModel);
+        saleDataModel.Validate(_localizer);
+        _saleStorageContract.AddElement(saleDataModel);
+    }
+    public void CancelSale(string id)
+    {
+        _logger.LogInformation("Cancel by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _saleStorageContract.DelElement(id);
+    }
+
+}
--- a/TopazContracts/TopazBusinessLogic/Emplementations/WorkerBusinessLogicContracts.cs
+++ b/TopazContracts/TopazBusinessLogic/Emplementations/WorkerBusinessLogicContracts.cs
@@ -0,0 +1,104 @@
+using Microsoft.Extensions.Localization;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using TopazContracts.BusinessLogicContracts;
+using TopazContracts.DataModels;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Resources;
+using TopazContracts.StoragesContracts;
+
+namespace TopazBusinessLogic.Emplementations;
+
+internal class WorkerBusinessLogicContracts(IWorkerStorageContract workerStorageContract, IStringLocalizer<Messages> localizer,ILogger logger) : IWorkerBusinessLogicContracts
+{
+    private readonly ILogger _logger = logger;
+    private readonly IStringLocalizer<Messages> _localizer = localizer;
+    private readonly IWorkerStorageContract _workerStorageContract = workerStorageContract;
+    public List<WorkerDataModel> GetAllWorker(bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {onlyActive}", onlyActive);
+        return _workerStorageContract.GetList(onlyActive);
+    }
+    public List<WorkerDataModel> GetAllWorkersByPost(string postId, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {postId}, {onlyActive},", postId, onlyActive);
+        if (postId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(postId));
+        }
+        if (!postId.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "PostId"));
+        }
+        return _workerStorageContract.GetList(onlyActive, postId);
+    }
+
+    public List<WorkerDataModel> GetAllWorkerByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        return _workerStorageContract.GetList(onlyActive, fromBirthDate: fromDate, toBirthDate: toDate);
+
+    }
+
+    public List<WorkerDataModel> GetAllWorkerByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+    {
+        _logger.LogInformation("GetAllWorkers params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate, _localizer);
+        }
+        return _workerStorageContract.GetList(onlyActive, fromEmploymentDate: fromDate, toEmploymentDate: toDate);
+
+    }
+    public WorkerDataModel GetWorkerByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _workerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data,_localizer);
+        }
+        return _workerStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data, _localizer);
+    }
+    public void InsertWorker(WorkerDataModel workerDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(workerDataModel));
+        ArgumentNullException.ThrowIfNull(workerDataModel);
+        workerDataModel.Validate(_localizer);
+        _workerStorageContract.AddElement(workerDataModel);
+    }
+
+    public void UpdateWorker(WorkerDataModel workerDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(workerDataModel));
+        ArgumentNullException.ThrowIfNull(workerDataModel);
+        workerDataModel.Validate(_localizer);
+        _workerStorageContract.UpdElement(workerDataModel);
+    }
+    public void DeleteWorker(string id)
+    {
+        _logger.LogInformation("Delete by id: {id}", id);
+        if (id.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(id));
+        }
+        if (!id.IsGuid())
+        {
+            throw new ValidationException(string.Format(_localizer["ValidationExceptionMessageNotAId"], "Id"));
+        }
+        _workerStorageContract.DelElement(id);
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/OfficePackage/BaseExcelBuilder.cs
+++ b/TopazContracts/TopazBusinessLogic/OfficePackage/BaseExcelBuilder.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazBusinessLogic.OfficePackage;
+
+public abstract class BaseExcelBuilder
+{
+    public abstract BaseExcelBuilder AddHeader(string header, int startIndex, int count);
+
+    public abstract BaseExcelBuilder AddParagraph(string text, int columnIndex);
+
+    public abstract BaseExcelBuilder AddTable(int[] columnsWidths, List<string[]> data);
+
+    public abstract Stream Build();
+}
--- a/TopazContracts/TopazBusinessLogic/OfficePackage/BasePdfBuilder.cs
+++ b/TopazContracts/TopazBusinessLogic/OfficePackage/BasePdfBuilder.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazBusinessLogic.OfficePackage;
+
+public abstract class BasePdfBuilder
+{
+    public abstract BasePdfBuilder AddHeader(string header);
+
+    public abstract BasePdfBuilder AddParagraph(string text);
+
+    public abstract BasePdfBuilder AddPieChart(string title, List<(string Caption, double Value)> data);
+
+    public abstract Stream Build();
+}
--- a/TopazContracts/TopazBusinessLogic/OfficePackage/BaseWordBuilder.cs
+++ b/TopazContracts/TopazBusinessLogic/OfficePackage/BaseWordBuilder.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazBusinessLogic.OfficePackage;
+
+public abstract class BaseWordBuilder
+{
+    public abstract BaseWordBuilder AddHeader(string header);
+
+    public abstract BaseWordBuilder AddParagraph(string text);
+
+    public abstract BaseWordBuilder AddTable(int[] widths, List<string[]> data);
+
+    public abstract Stream Build();
+}
--- a/TopazContracts/TopazBusinessLogic/OfficePackage/MigraDocPdfBuilder.cs
+++ b/TopazContracts/TopazBusinessLogic/OfficePackage/MigraDocPdfBuilder.cs
@@ -0,0 +1,85 @@
+using MigraDoc.DocumentObjectModel;
+using MigraDoc.DocumentObjectModel.Shapes.Charts;
+using MigraDoc.Rendering;
+using System.Text;
+
+namespace TopazBusinessLogic.OfficePackage;
+
+internal class MigraDocPdfBuilder : BasePdfBuilder
+{
+    private readonly Document _document;
+
+    public MigraDocPdfBuilder()
+    {
+        Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+        _document = new Document();
+        DefineStyles();
+    }
+
+    public override BasePdfBuilder AddHeader(string header)
+    {
+        _document.AddSection().AddParagraph(header, "NormalBold");
+        return this;
+    }
+
+    public override BasePdfBuilder AddParagraph(string text)
+    {
+        _document.LastSection.AddParagraph(text, "Normal");
+        return this;
+    }
+
+    public override BasePdfBuilder AddPieChart(string title, List<(string Caption, double Value)> data)
+    {
+        if (data == null || data.Count == 0)
+        {
+            return this;
+        }
+
+        var chart = new Chart(ChartType.Pie2D);
+        var series = chart.SeriesCollection.AddSeries();
+        series.Add(data.Select(x => x.Value).ToArray());
+
+        var xseries = chart.XValues.AddXSeries();
+        xseries.Add(data.Select(x => x.Caption).ToArray());
+
+        chart.DataLabel.Type = DataLabelType.Percent;
+        chart.DataLabel.Position = DataLabelPosition.OutsideEnd;
+
+        chart.Width = Unit.FromCentimeter(16);
+        chart.Height = Unit.FromCentimeter(12);
+
+        chart.TopArea.AddParagraph(title);
+
+        chart.XAxis.MajorTickMark = TickMarkType.Outside;
+
+        chart.YAxis.MajorTickMark = TickMarkType.Outside;
+        chart.YAxis.HasMajorGridlines = true;
+
+        chart.PlotArea.LineFormat.Width = 1;
+        chart.PlotArea.LineFormat.Visible = true;
+
+        chart.TopArea.AddLegend();
+
+        _document.LastSection.Add(chart);
+
+        return this;
+    }
+
+    public override Stream Build()
+    {
+        var stream = new MemoryStream();
+        var renderer = new PdfDocumentRenderer(true)
+        {
+            Document = _document
+        };
+        renderer.RenderDocument();
+        renderer.PdfDocument.Save(stream);
+        return stream;
+    }
+
+    private void DefineStyles()
+    {
+        var style = _document.Styles.AddStyle("NormalBold", "Normal");
+        style.Font.Bold = true;
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/OfficePackage/OpenXmlExcelBuilder.cs
+++ b/TopazContracts/TopazBusinessLogic/OfficePackage/OpenXmlExcelBuilder.cs
@@ -0,0 +1,304 @@
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Spreadsheet;
+using DocumentFormat.OpenXml;
+
+
+namespace TopazBusinessLogic.OfficePackage;
+
+internal class OpenXmlExcelBuilder : BaseExcelBuilder
+{
+    private readonly SheetData _sheetData;
+
+    private readonly MergeCells _mergeCells;
+
+    private readonly Columns _columns;
+
+    private uint _rowIndex = 0;
+
+    public OpenXmlExcelBuilder()
+    {
+        _sheetData = new SheetData();
+        _mergeCells = new MergeCells();
+        _columns = new Columns();
+        _rowIndex = 1;
+    }
+
+    public override BaseExcelBuilder AddHeader(string header, int startIndex, int count)
+    {
+        CreateCell(startIndex, _rowIndex, header, StyleIndex.BoldTextWithoutBorder);
+        for (int i = startIndex + 1; i < startIndex + count; ++i)
+        {
+            CreateCell(i, _rowIndex, "", StyleIndex.SimpleTextWithoutBorder);
+        }
+
+        _mergeCells.Append(new MergeCell()
+        {
+            Reference =
+            new StringValue($"{GetExcelColumnName(startIndex)}{_rowIndex}:{GetExcelColumnName(startIndex + count - 1)}{_rowIndex}")
+        });
+
+        _rowIndex++;
+        return this;
+    }
+
+    public override BaseExcelBuilder AddParagraph(string text, int columnIndex)
+    {
+        CreateCell(columnIndex, _rowIndex++, text, StyleIndex.SimpleTextWithoutBorder);
+        return this;
+    }
+
+    public override BaseExcelBuilder AddTable(int[] columnsWidths, List<string[]> data)
+    {
+        if (columnsWidths == null || columnsWidths.Length == 0)
+        {
+            throw new ArgumentNullException(nameof(columnsWidths));
+        }
+
+        if (data == null || data.Count == 0)
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+
+        if (data.Any(x => x.Length != columnsWidths.Length))
+        {
+            throw new InvalidOperationException("widths.Length != data.Length");
+        }
+
+        uint counter = 1;
+        int coef = 2;
+        _columns.Append(columnsWidths.Select(x => new Column
+        {
+            Min = counter,
+            Max = counter++,
+            Width = x * coef,
+            CustomWidth = true
+        }));
+
+        for (var j = 0; j < data.First().Length; ++j)
+        {
+            CreateCell(j, _rowIndex, data.First()[j], StyleIndex.BoldTextWithBorder);
+        }
+
+        _rowIndex++;
+        for (var i = 1; i < data.Count - 1; ++i)
+        {
+            for (var j = 0; j < data[i].Length; ++j)
+            {
+                CreateCell(j, _rowIndex, data[i][j], StyleIndex.SimpleTextWithBorder);
+            }
+
+            _rowIndex++;
+        }
+
+        for (var j = 0; j < data.Last().Length; ++j)
+        {
+            CreateCell(j, _rowIndex, data.Last()[j], StyleIndex.BoldTextWithBorder);
+        }
+
+        _rowIndex++;
+        return this;
+    }
+
+    public override Stream Build()
+    {
+        var stream = new MemoryStream();
+        using var spreadsheetDocument = SpreadsheetDocument.Create(stream, SpreadsheetDocumentType.Workbook);
+        var workbookpart = spreadsheetDocument.AddWorkbookPart();
+        GenerateStyle(workbookpart);
+        workbookpart.Workbook = new Workbook();
+        var worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
+        worksheetPart.Worksheet = new Worksheet();
+        if (_columns.HasChildren)
+        {
+            worksheetPart.Worksheet.Append(_columns);
+        }
+
+        worksheetPart.Worksheet.Append(_sheetData);
+        var sheets = spreadsheetDocument.WorkbookPart!.Workbook.AppendChild(new Sheets());
+        var sheet = new Sheet()
+        {
+            Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
+            SheetId = 1,
+            Name = "Лист 1"
+        };
+
+        sheets.Append(sheet);
+        if (_mergeCells.HasChildren)
+        {
+            worksheetPart.Worksheet.InsertAfter(_mergeCells, worksheetPart.Worksheet.Elements<SheetData>().First());
+        }
+        return stream;
+    }
+
+    private static void GenerateStyle(WorkbookPart workbookPart)
+    {
+        var workbookStylesPart = workbookPart.AddNewPart<WorkbookStylesPart>();
+        workbookStylesPart.Stylesheet = new Stylesheet();
+
+        var fonts = new Fonts() { Count = 2, KnownFonts = BooleanValue.FromBoolean(true) };
+        fonts.Append(new DocumentFormat.OpenXml.Spreadsheet.Font
+        {
+            FontSize = new FontSize() { Val = 11 },
+            FontName = new FontName() { Val = "Calibri" },
+            FontFamilyNumbering = new FontFamilyNumbering() { Val = 2 },
+            FontScheme = new FontScheme() { Val = new EnumValue<FontSchemeValues>(FontSchemeValues.Minor) }
+        });
+        fonts.Append(new DocumentFormat.OpenXml.Spreadsheet.Font
+        {
+            FontSize = new FontSize() { Val = 11 },
+            FontName = new FontName() { Val = "Calibri" },
+            FontFamilyNumbering = new FontFamilyNumbering() { Val = 2 },
+            FontScheme = new FontScheme() { Val = new EnumValue<FontSchemeValues>(FontSchemeValues.Minor) },
+            Bold = new Bold()
+        });
+        workbookStylesPart.Stylesheet.Append(fonts);
+
+        // Default Fill
+        var fills = new Fills() { Count = 1 };
+        fills.Append(new Fill
+        {
+            PatternFill = new PatternFill() { PatternType = new EnumValue<PatternValues>(PatternValues.None) }
+        });
+        workbookStylesPart.Stylesheet.Append(fills);
+
+        // Default Border
+        var borders = new Borders() { Count = 2 };
+        borders.Append(new Border
+        {
+            LeftBorder = new LeftBorder(),
+            RightBorder = new RightBorder(),
+            TopBorder = new TopBorder(),
+            BottomBorder = new BottomBorder(),
+            DiagonalBorder = new DiagonalBorder()
+        });
+        borders.Append(new Border
+        {
+            LeftBorder = new LeftBorder() { Style = BorderStyleValues.Thin },
+            RightBorder = new RightBorder() { Style = BorderStyleValues.Thin },
+            TopBorder = new TopBorder() { Style = BorderStyleValues.Thin },
+            BottomBorder = new BottomBorder() { Style = BorderStyleValues.Thin }
+        });
+        workbookStylesPart.Stylesheet.Append(borders);
+
+        // Default cell format and a date cell format
+        var cellFormats = new CellFormats() { Count = 4 };
+        cellFormats.Append(new CellFormat
+        {
+            NumberFormatId = 0,
+            FormatId = 0,
+            FontId = 0,
+            BorderId = 0,
+            FillId = 0,
+            Alignment = new Alignment()
+            {
+                Horizontal = HorizontalAlignmentValues.Left,
+                Vertical = VerticalAlignmentValues.Center,
+                WrapText = true
+            }
+        });
+        cellFormats.Append(new CellFormat
+        {
+            NumberFormatId = 0,
+            FormatId = 0,
+            FontId = 0,
+            BorderId = 1,
+            FillId = 0,
+            Alignment = new Alignment()
+            {
+                Horizontal = HorizontalAlignmentValues.Left,
+                Vertical = VerticalAlignmentValues.Center,
+                WrapText = true
+            }
+        });
+        cellFormats.Append(new CellFormat
+        {
+            NumberFormatId = 0,
+            FormatId = 0,
+            FontId = 1,
+            BorderId = 0,
+            FillId = 0,
+            Alignment = new Alignment()
+            {
+                Horizontal = HorizontalAlignmentValues.Center,
+                Vertical = VerticalAlignmentValues.Center,
+                WrapText = true
+            }
+        });
+        cellFormats.Append(new CellFormat
+        {
+            NumberFormatId = 0,
+            FormatId = 0,
+            FontId = 1,
+            BorderId = 1,
+            FillId = 0,
+            Alignment = new Alignment()
+            {
+                Horizontal = HorizontalAlignmentValues.Center,
+                Vertical = VerticalAlignmentValues.Center,
+                WrapText = true
+            }
+        });
+        workbookStylesPart.Stylesheet.Append(cellFormats);
+    }
+
+    private enum StyleIndex
+    {
+        SimpleTextWithoutBorder = 0,
+        SimpleTextWithBorder = 1,
+        BoldTextWithoutBorder = 2,
+        BoldTextWithBorder = 3
+    }
+
+    private void CreateCell(int columnIndex, uint rowIndex, string text, StyleIndex styleIndex)
+    {
+        var columnName = GetExcelColumnName(columnIndex);
+        var cellReference = columnName + rowIndex;
+        var row = _sheetData.Elements<Row>().FirstOrDefault(r => r.RowIndex! == rowIndex);
+        if (row == null)
+        {
+            row = new Row() { RowIndex = rowIndex };
+            _sheetData.Append(row);
+        }
+
+        var newCell = row.Elements<Cell>()
+            .FirstOrDefault(c => c.CellReference != null && c.CellReference.Value == columnName + rowIndex);
+        if (newCell == null)
+        {
+            Cell? refCell = null;
+            foreach (Cell cell in row.Elements<Cell>())
+            {
+                if (cell.CellReference?.Value != null && cell.CellReference.Value.Length == cellReference.Length)
+                {
+                    if (string.Compare(cell.CellReference.Value, cellReference, true) > 0)
+                    {
+                        refCell = cell;
+                        break;
+                    }
+                }
+            }
+            newCell = new Cell() { CellReference = cellReference };
+            row.InsertBefore(newCell, refCell);
+        }
+
+        newCell.CellValue = new CellValue(text);
+        newCell.DataType = CellValues.String;
+        newCell.StyleIndex = (uint)styleIndex;
+    }
+
+    private static string GetExcelColumnName(int columnNumber)
+    {
+        columnNumber += 1;
+        int dividend = columnNumber;
+        string columnName = string.Empty;
+        int modulo;
+
+        while (dividend > 0)
+        {
+            modulo = (dividend - 1) % 26;
+            columnName = Convert.ToChar(65 + modulo).ToString() + columnName;
+            dividend = (dividend - modulo) / 26;
+        }
+
+        return columnName;
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/OfficePackage/OpenXmlWordBuilder.cs
+++ b/TopazContracts/TopazBusinessLogic/OfficePackage/OpenXmlWordBuilder.cs
@@ -0,0 +1,93 @@
+using DocumentFormat.OpenXml.Wordprocessing;
+using DocumentFormat.OpenXml;
+using DocumentFormat.OpenXml.Packaging;
+
+namespace TopazBusinessLogic.OfficePackage;
+internal class OpenXmlWordBuilder:BaseWordBuilder
+{
+    private readonly Document _document;
+
+    private readonly Body _body;
+
+    public OpenXmlWordBuilder()
+    {
+        _document = new Document();
+        _body = _document.AppendChild(new Body());
+    }
+
+    public override BaseWordBuilder AddHeader(string header)
+    {
+        var paragraph = _body.AppendChild(new Paragraph());
+        var run = paragraph.AppendChild(new Run());
+        run.AppendChild(new RunProperties(new Bold()));
+        run.AppendChild(new Text(header));
+
+        return this;
+    }
+
+    public override BaseWordBuilder AddParagraph(string text)
+    {
+        var paragraph = _body.AppendChild(new Paragraph());
+        var run = paragraph.AppendChild(new Run());
+        run.AppendChild(new Text(text));
+
+        return this;
+    }
+
+    public override BaseWordBuilder AddTable(int[] widths, List<string[]> data)
+    {
+        if (widths == null || widths.Length == 0)
+        {
+            throw new ArgumentNullException(nameof(widths));
+        }
+
+        if (data == null || data.Count == 0)
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+
+        if (data.Any(x => x.Length != widths.Length))
+        {
+            throw new InvalidOperationException("widths.Length != data.Length");
+        }
+
+        var table = new Table();
+        table.AppendChild(new TableProperties(
+            new TableBorders(
+                new TopBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
+                new BottomBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
+                new LeftBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
+                new RightBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
+                new InsideHorizontalBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 },
+                new InsideVerticalBorder() { Val = new EnumValue<BorderValues>(BorderValues.Single), Size = 12 }
+            )
+        ));
+
+        // Заголовок
+        var tr = new TableRow();
+        for (var j = 0; j < widths.Length; ++j)
+        {
+            tr.Append(new TableCell(
+                new TableCellProperties(new TableCellWidth() { Width = widths[j].ToString() }),
+                new Paragraph(new Run(new RunProperties(new Bold()), new Text(data.First()[j])))));
+        }
+        table.Append(tr);
+
+        // Данные
+        table.Append(data.Skip(1).Select(x =>
+            new TableRow(x.Select(y => new TableCell(new Paragraph(new Run(new Text(y))))))));
+
+        _body.Append(table);
+
+        return this;
+    }
+
+    public override Stream Build()
+    {
+        var stream = new MemoryStream();
+        using var wordDocument = WordprocessingDocument.Create(stream, WordprocessingDocumentType.Document);
+        var mainPart = wordDocument.AddMainDocumentPart();
+        mainPart.Document = _document;
+        return stream;
+    }
+}
--- a/TopazContracts/TopazBusinessLogic/TopazBusinessLogic.csproj
+++ b/TopazContracts/TopazBusinessLogic/TopazBusinessLogic.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+	<ItemGroup>
+		<InternalsVisibleTo Include="TopazTests" />
+		<InternalsVisibleTo Include="TopazWebApi" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+	<ItemGroup>
+	  <PackageReference Include="DocumentFormat.OpenXml" Version="3.3.0" />
+	  <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.2" />
+	  <PackageReference Include="PdfSharp.MigraDoc.Standard" Version="1.51.15" />
+	</ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\TopazContracts\TopazContracts.csproj" />
+  </ItemGroup>
+
+</Project>
--- a/TopazContracts/TopazContracts.sln
+++ b/TopazContracts/TopazContracts.sln
@@ -1,10 +1,18 @@

 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.12.35707.178 d17.12
+VisualStudioVersion = 17.12.35707.178
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TopazContracts", "TopazContracts\TopazContracts.csproj", "{A4ADA076-1942-41BA-A0D9-E528C6630837}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TopazTests", "TopazTests\TopazTests.csproj", "{38D93B99-FF6E-47E0-867A-D2175A5B7C36}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TopazBusinessLogic", "TopazBusinessLogic\TopazBusinessLogic.csproj", "{2DE200D8-708B-4D98-9722-06F5AD9AE6D2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TopazDataBase", "TopazDataBase\TopazDataBase.csproj", "{3AF09FF2-74F4-4B6B-BB2A-7C71B00EB6B2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TopazWebApi", "TopazWebApi\TopazWebApi.csproj", "{F33751FB-1BEB-4C2E-8AF2-A941AF26AD63}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,8 +23,27 @@ Global
 		{A4ADA076-1942-41BA-A0D9-E528C6630837}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A4ADA076-1942-41BA-A0D9-E528C6630837}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A4ADA076-1942-41BA-A0D9-E528C6630837}.Release|Any CPU.Build.0 = Release|Any CPU
+		{38D93B99-FF6E-47E0-867A-D2175A5B7C36}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{38D93B99-FF6E-47E0-867A-D2175A5B7C36}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{38D93B99-FF6E-47E0-867A-D2175A5B7C36}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{38D93B99-FF6E-47E0-867A-D2175A5B7C36}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2DE200D8-708B-4D98-9722-06F5AD9AE6D2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2DE200D8-708B-4D98-9722-06F5AD9AE6D2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2DE200D8-708B-4D98-9722-06F5AD9AE6D2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2DE200D8-708B-4D98-9722-06F5AD9AE6D2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3AF09FF2-74F4-4B6B-BB2A-7C71B00EB6B2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3AF09FF2-74F4-4B6B-BB2A-7C71B00EB6B2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3AF09FF2-74F4-4B6B-BB2A-7C71B00EB6B2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3AF09FF2-74F4-4B6B-BB2A-7C71B00EB6B2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F33751FB-1BEB-4C2E-8AF2-A941AF26AD63}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F33751FB-1BEB-4C2E-8AF2-A941AF26AD63}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F33751FB-1BEB-4C2E-8AF2-A941AF26AD63}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F33751FB-1BEB-4C2E-8AF2-A941AF26AD63}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {A2F983A3-86FD-432E-A0CD-51C6356D1AEC}
+	EndGlobalSection
 EndGlobal
--- a/TopazContracts/TopazContracts/AdapterContracts/IBuyerAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/IBuyerAdapter.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.AdapterContracts.OperationResponses;
+using TopazContracts.BindingModels;
+
+namespace TopazContracts.AdapterContracts;
+
+public interface IBuyerAdapter
+{
+    BuyerOperationResponse GetList();
+
+    BuyerOperationResponse GetElement(string data);
+
+    BuyerOperationResponse RegisterBuyer(BuyerBindingModel buyerModel);
+
+    BuyerOperationResponse ChangeBuyerInfo(BuyerBindingModel buyerModel);
+
+    BuyerOperationResponse RemoveBuyer(string id);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/IManufacturerAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/IManufacturerAdapter.cs
@@ -0,0 +1,17 @@
+using TopazContracts.AdapterContracts.OperationResponses;
+using TopazContracts.BindingModels;
+
+namespace TopazContracts.AdapterContracts;
+
+public interface IManufacturerAdapter
+{
+	ManufacturerOperationResponse GetList();
+
+	ManufacturerOperationResponse GetElement(string data);
+
+	ManufacturerOperationResponse RegisterManufacturer(ManufacturerBindingModel manufacturerModel);
+
+	ManufacturerOperationResponse ChangeManufacturerInfo(ManufacturerBindingModel manufacturerModel);
+
+	ManufacturerOperationResponse RemoveManufacturer(string id);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/IPostAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/IPostAdapter.cs
@@ -0,0 +1,21 @@
+using TopazContracts.AdapterContracts.OperationResponses;
+using TopazContracts.BindingModels;
+
+namespace TopazContracts.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);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/IProductAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/IProductAdapter.cs
@@ -0,0 +1,21 @@
+using TopazContracts.AdapterContracts.OperationResponses;
+using TopazContracts.BindingModels;
+
+namespace TopazContracts.AdapterContracts;
+
+public interface IProductAdapter
+{
+	ProductOperationResponse GetList(bool includeDeleted);
+
+	ProductOperationResponse GetManufacturerList(string id, bool includeDeleted);
+
+	ProductOperationResponse GetHistory(string id);
+
+	ProductOperationResponse GetElement(string data);
+
+	ProductOperationResponse RegisterProduct(ProductBindingModel productModel);
+
+	ProductOperationResponse ChangeProductInfo(ProductBindingModel productModel);
+
+	ProductOperationResponse RemoveProduct(string id);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/IReportAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/IReportAdapter.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.AdapterContracts.OperationResponses;
+
+namespace TopazContracts.AdapterContracts;
+
+public interface IReportAdapter
+{
+    Task<ReportOperationResponse> GetDataProductsByManufacturerAsync(CancellationToken ct);
+    Task<ReportOperationResponse> GetDataSaleByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+    Task<ReportOperationResponse> GetDataSalaryByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+    Task<ReportOperationResponse> CreateDocumentProductsByManufacturerAsync(CancellationToken ct);
+    Task<ReportOperationResponse> CreateDocumentSalesByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+    Task<ReportOperationResponse> CreateDocumentSalaryByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/ISalaryAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/ISalaryAdapter.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.AdapterContracts.OperationResponses;
+
+namespace TopazContracts.AdapterContracts;
+
+public interface ISalaryAdapter
+{
+    SalaryOperationResponse GetListByPeriod(DateTime fromDate, DateTime toDate);
+
+    SalaryOperationResponse GetListByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId);
+
+    SalaryOperationResponse CalculateSalary(DateTime date);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/ISaleAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/ISaleAdapter.cs
@@ -0,0 +1,21 @@
+using TopazContracts.AdapterContracts.OperationResponses;
+using TopazContracts.BindingModels;
+
+namespace TopazContracts.AdapterContracts;
+
+public interface ISaleAdapter
+{
+	SaleOperationResponse GetList(DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetWorkerList(string id, DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetBuyerList(string id, DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetProductList(string id, DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetElement(string id);
+
+	SaleOperationResponse MakeSale(SaleBindingModel saleModel);
+
+	SaleOperationResponse CancelSale(string id);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/IWorkerAdapter.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/IWorkerAdapter.cs
@@ -0,0 +1,23 @@
+using TopazContratcs.AdapterContracts.OperationResponses;
+using TopazContratcs.BindingModels;
+
+namespace TopazContratcs.AdapterContracts;
+
+public interface IWorkerAdapter
+{
+	WorkerOperationResponse GetList(bool includeDeleted);
+
+	WorkerOperationResponse GetPostList(string id, bool includeDeleted);
+
+	WorkerOperationResponse GetListByBirthDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+	WorkerOperationResponse GetListByEmploymentDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+	WorkerOperationResponse GetElement(string data);
+
+	WorkerOperationResponse RegisterWorker(WorkerBindingModel workerModel);
+
+	WorkerOperationResponse ChangeWorkerInfo(WorkerBindingModel workerModel);
+
+	WorkerOperationResponse RemoveWorker(string id);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/BuyerOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/BuyerOperationResponse.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Infrastructure;
+using TopazContracts.ViewModels;
+
+namespace TopazContracts.AdapterContracts.OperationResponses;
+
+public class BuyerOperationResponse : OperationResponse
+{
+    public static BuyerOperationResponse OK(List<BuyerViewModel> data) => OK<BuyerOperationResponse, List<BuyerViewModel>>(data);
+
+    public static BuyerOperationResponse OK(BuyerViewModel data) => OK<BuyerOperationResponse, BuyerViewModel>(data);
+
+    public static BuyerOperationResponse NoContent() => NoContent<BuyerOperationResponse>();
+
+    public static BuyerOperationResponse BadRequest(string message) => BadRequest<BuyerOperationResponse>(message);
+
+    public static BuyerOperationResponse NotFound(string message) => NotFound<BuyerOperationResponse>(message);
+
+    public static BuyerOperationResponse InternalServerError(string message) => InternalServerError<BuyerOperationResponse>(message);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/ManufacturerOperationRespons.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/ManufacturerOperationRespons.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Infrastructure;
+using TopazContracts.ViewModels;
+
+namespace TopazContracts.AdapterContracts.OperationResponses;
+
+public class ManufacturerOperationResponse : OperationResponse
+{
+    public static ManufacturerOperationResponse OK(List<ManufacturerViewModel> data) => OK<ManufacturerOperationResponse, List<ManufacturerViewModel>>(data);
+
+    public static ManufacturerOperationResponse OK(ManufacturerViewModel data) => OK<ManufacturerOperationResponse, ManufacturerViewModel>(data);
+
+    public static ManufacturerOperationResponse NoContent() => NoContent<ManufacturerOperationResponse>();
+
+    public static ManufacturerOperationResponse NotFound(string message) => NotFound<ManufacturerOperationResponse>(message);
+
+    public static ManufacturerOperationResponse BadRequest(string message) => BadRequest<ManufacturerOperationResponse>(message);
+
+    public static ManufacturerOperationResponse InternalServerError(string message) => InternalServerError<ManufacturerOperationResponse>(message);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/PostOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/PostOperationResponse.cs
@@ -0,0 +1,19 @@
+using TopazContracts.ViewModels;
+using TopazContracts.Infrastructure;
+
+namespace TopazContracts.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);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/ProductOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/ProductOperationResponse.cs
@@ -0,0 +1,21 @@
+using TopazContracts.Infrastructure;
+using TopazContracts.ViewModels;
+
+namespace TopazContracts.AdapterContracts.OperationResponses;
+
+public class ProductOperationResponse : OperationResponse
+{
+	public static ProductOperationResponse OK(List<ProductViewModel> data) => OK<ProductOperationResponse, List<ProductViewModel>>(data);
+
+	public static ProductOperationResponse OK(List<ProductHistoryViewModel> data) => OK<ProductOperationResponse, List<ProductHistoryViewModel>>(data);
+
+	public static ProductOperationResponse OK(ProductViewModel data) => OK<ProductOperationResponse, ProductViewModel>(data);
+
+	public static ProductOperationResponse NoContent() => NoContent<ProductOperationResponse>();
+
+	public static ProductOperationResponse NotFound(string message) => NotFound<ProductOperationResponse>(message);
+
+	public static ProductOperationResponse BadRequest(string message) => BadRequest<ProductOperationResponse>(message);
+
+	public static ProductOperationResponse InternalServerError(string message) => InternalServerError<ProductOperationResponse>(message);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/ReportOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/ReportOperationResponse.cs
@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+using TopazContracts.Infrastructure;
+using TopazContracts.ViewModels;
+using TopazContratcs.ViewModels;
+
+namespace TopazContracts.AdapterContracts.OperationResponses;
+
+public class ReportOperationResponse : OperationResponse
+{
+    public static ReportOperationResponse OK(List<ManufacturerProductViewModel> data) => OK<ReportOperationResponse, List<ManufacturerProductViewModel>>(data);
+    public static ReportOperationResponse OK(List<SaleViewModel> data) => OK<ReportOperationResponse, List<SaleViewModel>>(data);
+    public static ReportOperationResponse OK(List<WorkerSalaryByPeriodViewModel> data) => OK<ReportOperationResponse, List<WorkerSalaryByPeriodViewModel>>(data);
+    public static ReportOperationResponse OK(Stream data, string fileName) => OK<ReportOperationResponse, Stream>(data, fileName);
+
+    public static ReportOperationResponse BadRequest(string message) => BadRequest<ReportOperationResponse>(message);
+
+    public static ReportOperationResponse InternalServerError(string message) => InternalServerError<ReportOperationResponse>(message);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/SalaryOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/SalaryOperationResponse.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Infrastructure;
+using TopazContracts.ViewModels;
+
+namespace TopazContracts.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);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/SaleOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/SaleOperationResponse.cs
@@ -0,0 +1,19 @@
+using TopazContracts.Infrastructure;
+using TopazContratcs.ViewModels;
+
+namespace TopazContracts.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);
+}
--- a/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/WorkerOperationResponse.cs
+++ b/TopazContracts/TopazContracts/AdapterContracts/OperationResponses/WorkerOperationResponse.cs
@@ -0,0 +1,19 @@
+using TopazContracts.Infrastructure;
+using TopazContratcs.ViewModels;
+
+namespace TopazContratcs.AdapterContracts.OperationResponses;
+
+public class WorkerOperationResponse : OperationResponse
+{
+	public static WorkerOperationResponse OK(List<WorkerViewModel> data) => OK<WorkerOperationResponse, List<WorkerViewModel>>(data);
+
+	public static WorkerOperationResponse OK(WorkerViewModel data) => OK<WorkerOperationResponse, WorkerViewModel>(data);
+
+	public static WorkerOperationResponse NoContent() => NoContent<WorkerOperationResponse>();
+
+	public static WorkerOperationResponse NotFound(string message) => NotFound<WorkerOperationResponse>(message);
+
+	public static WorkerOperationResponse BadRequest(string message) => BadRequest<WorkerOperationResponse>(message);
+
+	public static WorkerOperationResponse InternalServerError(string message) => InternalServerError<WorkerOperationResponse>(message);
+}
--- a/TopazContracts/TopazContracts/BindingModels/BuyerBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/BuyerBindingModel.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.BindingModels;
+
+public class BuyerBindingModel
+{
+    public string? Id { get; set; }
+    public string? FIO { get; set; }
+    public string? PhoneNumber { get; set; }
+    public double DiscountSize { get; set; }
+}
--- a/TopazContracts/TopazContracts/BindingModels/ManufacturerBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/ManufacturerBindingModel.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.BindingModels;
+
+public class ManufacturerBindingModel
+{
+    public string? Id { get; set; }
+
+    public string? ManufacturerName { get; set; }
+}
--- a/TopazContracts/TopazContracts/BindingModels/PostBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/PostBindingModel.cs
@@ -0,0 +1,14 @@
+namespace TopazContracts.BindingModels;
+
+public class PostBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? PostId => Id;
+
+	public string? PostName { get; set; }
+
+	public string? PostType { get; set; }
+
+	public string? ConfigurationJson { get; set; }
+}
--- a/TopazContracts/TopazContracts/BindingModels/ProductBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/ProductBindingModel.cs
@@ -0,0 +1,14 @@
+namespace TopazContracts.BindingModels;
+
+public class ProductBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? ProductName { get; set; }
+
+	public string? ComponentType { get; set; }
+
+	public string? ManufacturerId { get; set; }
+
+	public double Price { get; set; }
+}
--- a/TopazContracts/TopazContracts/BindingModels/SaleBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/SaleBindingModel.cs
@@ -0,0 +1,14 @@
+namespace TopazContracts.BindingModels;
+
+public class SaleBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? WorkerId { get; set; }
+
+	public string? BuyerId { get; set; }
+
+	public int DiscountType { get; set; }
+
+	public List<SaleProductBindingModel>? Products { get; set; }
+}
--- a/TopazContracts/TopazContracts/BindingModels/SaleProductBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/SaleProductBindingModel.cs
@@ -0,0 +1,12 @@
+namespace TopazContracts.BindingModels;
+
+public class SaleProductBindingModel
+{
+	public string? SaleId { get; set; }
+
+	public string? ProductId { get; set; }
+
+	public int Count { get; set; }
+
+	public double Price { get; set; }
+}
--- a/TopazContracts/TopazContracts/BindingModels/WorkerBindingModel.cs
+++ b/TopazContracts/TopazContracts/BindingModels/WorkerBindingModel.cs
@@ -0,0 +1,14 @@
+namespace TopazContratcs.BindingModels;
+
+public class WorkerBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? FIO { get; set; }
+
+	public string? PostId { get; set; }
+
+	public DateTime BirthDate { get; set; }
+
+	public DateTime EmploymentDate { get; set; }
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/IBuyerBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/IBuyerBusinessLogicContracts.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface IBuyerBusinessLogicContracts
+{
+    List<BuyerDataModel> GetAllBuyers();
+    BuyerDataModel GetBuyerByData(string data);
+    void InsertBuyer(BuyerDataModel buyerDataModel);
+    void UpdateBuyer(BuyerDataModel buyerDataModel);
+    void DeleteBuyer(string id);
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/IManufactureBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/IManufactureBusinessLogicContracts.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface IManufactureBusinessLogicContracts
+{
+    List<ManufactureDataModels> GetAllManufacture();
+    ManufactureDataModels GetManufactureDataModelsByData(string data);
+    void InsertManufacture(ManufactureDataModels manufactureDataModels);
+    void UpdateManufacture(ManufactureDataModels manufactureDataModels);
+    void DeleteManufacture(string id);
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/IPostBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/IPostBusinessLogicContracts.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface IPostBusinessLogicContracts
+{
+    List<PostDataModel> GetAllPosts();
+    List<PostDataModel> GetAllDataOfPost(string postId);
+    PostDataModel GetPostByData(string data);
+    void InsertPost(PostDataModel postDataModel);
+    void UpdatePost(PostDataModel postDataModel);
+    void DeletePost(string id);
+    void RestorePost(string id);
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/IProductBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/IProductBusinessLogicContracts.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface IProductBusinessLogicContracts
+{
+    List<ProductDataModel> GetAllProducts(bool onlyActive = true);
+    List<ProductDataModel> GetAllProductsByManufacturer(string manufacterId, bool onlyActive = true);
+    List<ProductHistoryDataModel> GetProductHistoryByProduct(string productId);
+    ProductDataModel GetProductByData(string data);
+    void InsertProduct(ProductDataModel productDataModel);
+    void UpdateProduct(ProductDataModel productDataModel);
+    void DeleteProduct(string id);
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/IReportContract.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/IReportContract.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface IReportContract
+{
+    Task<List<ManufacturerProductDataModel>> GetDataProductsByManufacturerAsync(CancellationToken ct);
+    Task<List<SaleDataModel>> GetDataSaleByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+    Task<List<WorkerSalaryByPeriodDataModel>> GetDataSalaryByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+    Task<Stream> CreateDocumentProductsByManufacturerAsync(CancellationToken ct);
+    Task<Stream> CreateDocumentSalesByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+    Task<Stream> CreateDocumentSalaryByPeriodAsync(DateTime dateStart, DateTime dateFinish, CancellationToken ct);
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/ISalaryBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/ISalaryBusinessLogicContracts.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface ISalaryBusinessLogicContracts
+{
+    List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate);
+    List<SalaryDataModel> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId);
+    void CalculateSalaryByMounth(DateTime date);
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/ISaleBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/ISaleBusinessLogicContracts.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface ISaleBusinessLogicContracts
+{
+    List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate);
+    List<SaleDataModel> GetAllSalesByWorkerByPeriod(string workerId, DateTime fromDate, DateTime toDate);
+    List<SaleDataModel> GetAllSalesByBuyerByPeriod(string buyerId, DateTime fromDate, DateTime toDate);
+    List<SaleDataModel> GetAllSalesByProductByPeriod(string productId, DateTime fromDate, DateTime toDate);
+    SaleDataModel GetSaleByData(string data);
+    void InsertSale(SaleDataModel saleDataModel);
+    void CancelSale(string id);
+ 
+}
--- a/TopazContracts/TopazContracts/BusinessLogicContracts/IWorkerBusinessLogicContracts.cs
+++ b/TopazContracts/TopazContracts/BusinessLogicContracts/IWorkerBusinessLogicContracts.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.BusinessLogicContracts;
+
+internal interface IWorkerBusinessLogicContracts
+{
+    List<WorkerDataModel> GetAllWorker(bool onlyActive = true);
+    List<WorkerDataModel> GetAllWorkersByPost(string postId, bool onlyActive = true);
+    List<WorkerDataModel> GetAllWorkerByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+    List<WorkerDataModel> GetAllWorkerByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+    WorkerDataModel GetWorkerByData(string data);
+    void InsertWorker(WorkerDataModel workerDataModel);
+    void UpdateWorker(WorkerDataModel workerDataModel);
+    void DeleteWorker(string id);
+}
--- a/TopazContracts/TopazContracts/DataModels/BuyerDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/BuyerDataModel.cs
@@ -0,0 +1,42 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class BuyerDataModel(string id, string fio, string phonenumber, double discountSize) : IValidation
+{
+    public string Id { get; set; } = id;
+    public string FIO { get; set; } = fio;
+    public string PhoneNumber { get; set; } = phonenumber;
+    public double DiscountSize { get; set; } = discountSize;
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "Id"));
+
+        if (!Id.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "Id"));
+
+        if (FIO.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "FIO"));
+
+        if (PhoneNumber.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "PhoneNumber"));
+
+        if (!Regex.IsMatch(PhoneNumber, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+            throw new ValidationException(localizer["ValidationExceptionMessageIncorrectPhoneNumber"]);
+
+        if (!Regex.IsMatch(FIO, @"^[А-ЯЁ][а-яё]+(?:-[А-ЯЁ][а-яё]+)?\s[А-ЯЁ][а-яё]+(?:\s[А-ЯЁ][а-яё]+)?$"))
+            throw new ValidationException(localizer["ValidationExceptionMessageIncorrectFIO"]);
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/ManufactureDataModels.cs
+++ b/TopazContracts/TopazContracts/DataModels/ManufactureDataModels.cs
@@ -0,0 +1,37 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+
+namespace TopazContracts.DataModels;
+
+internal class ManufactureDataModels(string id, string manufacturerName, string? prevManufacturerName, string? prevPrevManufacturerName) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string ManufacturerName { get; private set; } = manufacturerName;
+
+    public string? PrevManufacturerName { get; private set; } = prevManufacturerName;
+
+    public string? PrevPrevManufacturerName { get; private set; } = prevPrevManufacturerName;
+    public ManufactureDataModels(string id, string manufacturerName) : this(id, manufacturerName, null, null) { }
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "Id"));
+
+        if (!Id.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "Id"));
+
+        if (ManufacturerName.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "ManufacturerName"));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/ManufacturerProductDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/ManufacturerProductDataModel.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.DataModels;
+
+public class ManufacturerProductDataModel
+{
+    public required string ManufacturerName { get; set; }
+    public required List<(string,string)> Products { get; set; }
+}
--- a/TopazContracts/TopazContracts/DataModels/PostDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/PostDataModel.cs
@@ -0,0 +1,61 @@
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Enums;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Infrastructure.PostConfigurations;
+using Microsoft.Extensions.Localization;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class PostDataModel(string postId, string postName, PostType postType, PostConfiguration configuration) : IValidation
+{
+    public string Id { get; private set; } = postId;
+
+    public string PostName { get; private set; } = postName;
+
+    public PostType PostType { get; private set; } = postType;
+
+    public PostConfiguration ConfigurationModel { get; private set; } = configuration;
+    public PostDataModel(string postId, string postName, PostType postType, string configurationJson) : this(postId, postName, postType, (PostConfiguration)null)
+    {
+        var obj = JToken.Parse(configurationJson);
+        if (obj is not null)
+        {
+            ConfigurationModel = obj.Value<string>("Type") switch
+            {
+                nameof(CashierPostConfiguration) => JsonConvert.DeserializeObject<CashierPostConfiguration>(configurationJson)!,
+                nameof(SupervisorPostConfiguration) => JsonConvert.DeserializeObject<SupervisorPostConfiguration>(configurationJson)!,
+                _ => JsonConvert.DeserializeObject<PostConfiguration>(configurationJson)!,
+            };
+        }
+    }
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "Id"));
+
+        if (!Id.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "Id"));
+
+        if (PostName.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "PostName"));
+
+        if (PostType == PostType.None)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "PostType"));
+
+        if (ConfigurationModel is null)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotInitialized"], "ConfigurationModel"));
+
+        if (ConfigurationModel!.Rate <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "Rate"));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/ProductDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/ProductDataModel.cs
@@ -0,0 +1,61 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Enums;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class ProductDataModel(string id, string productName, ComponentType componentType, string manufacturerId, double price, bool isDeleted) : IValidation
+{
+    private readonly ManufactureDataModels? _manufacturer;
+    public string Id { get; private set; } = id;
+
+    public string ProductName { get; private set; } = productName;
+
+    public ComponentType ComponentType { get; private set; } = componentType;
+
+    public string ManufacturerId { get; private set; } = manufacturerId;
+
+    public double Price { get; private set; } = price;
+
+    public bool IsDeleted { get; private set; } = isDeleted;
+    public string ManufacturerName => _manufacturer?.ManufacturerName ?? string.Empty;
+    public ProductDataModel(string id, string productName, ComponentType componentType, string manufacturerId, double price, bool isDeleted, ManufactureDataModels manufacturer) : this(id, productName, componentType, manufacturerId, price, isDeleted)
+    {
+        _manufacturer = manufacturer;
+    }
+
+    public ProductDataModel(string id, string productName, ComponentType componentType, string manufacturerId, double price) : this(id, productName, componentType, manufacturerId, price, false) { }
+
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "Id"));
+
+        if (!Id.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "Id"));
+
+        if (ProductName.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "ProductName"));
+
+        if (ComponentType == ComponentType.None)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "ProductType"));
+
+        if (ManufacturerId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "ManufacturerId"));
+
+        if (!ManufacturerId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "ManufacturerId"));
+
+        if (Price <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "Price"));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/ProductHistoryDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/ProductHistoryDataModel.cs
@@ -0,0 +1,42 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class ProductHistoryDataModel(string productId, double oldPrice) : IValidation
+{
+    private readonly ProductDataModel? _product;
+    public string ProductId { get; private set; } = productId;
+
+    public double OldPrice { get; private set; } = oldPrice;
+
+    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
+    public string ProductName => _product?.ProductName ?? string.Empty;
+
+    public ProductHistoryDataModel(string productId, double oldPrice, DateTime changeDate, ProductDataModel product) : this(productId, oldPrice)
+    {
+        ChangeDate = changeDate;
+        _product = product;
+    }
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (ProductId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "ProductId"));
+
+        if (!ProductId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "ProductId"));
+
+        if (OldPrice <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "OldPrice"));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/SalaryDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/SalaryDataModel.cs
@@ -0,0 +1,39 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class SalaryDataModel(string workerId, DateTime salaryDate, double workerSalary) : IValidation
+{
+    private readonly WorkerDataModel? _worker;
+    public string WorkerId { get; private set; } = workerId;
+
+    public DateTime SalaryDate { get; private set; } = salaryDate.ToUniversalTime();
+
+    public double Salary { get; private set; } = workerSalary;
+    public string WorkerFIO => _worker?.FIO ?? string.Empty;
+
+    public SalaryDataModel(string workerId, DateTime salaryDate, double workerSalary, WorkerDataModel worker) : this(workerId, salaryDate, workerSalary)
+    {
+        _worker = worker;
+    }
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (WorkerId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "WorkerId"));
+
+        if (!WorkerId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "WorkerId"));
+
+        if (Salary <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "Salary"));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/SaleDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/SaleDataModel.cs
@@ -0,0 +1,113 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Enums;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class SaleDataModel : IValidation
+{
+    private readonly BuyerDataModel? _buyer;
+
+    private readonly WorkerDataModel? _worker;
+    public string Id { get; private set; }
+
+    public string WorkerId { get; private set; }
+
+    public string? BuyerId { get; private set; }
+
+    public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
+
+    public double Sum { get; private set; }
+
+    public DiscountType DiscountType { get; private set; }
+
+    public double Discount { get; private set; }
+
+    public bool IsCancel { get; private set; }
+
+    public List<SaleProductDataModel> Products { get; private set; }
+    public string BuyerFIO => _buyer?.FIO ?? string.Empty;
+
+    public string WorkerFIO => _worker?.FIO ?? string.Empty;
+
+    public SaleDataModel(string id, string workerId, string? buyerId, DiscountType discountType, bool isCancel, List<SaleProductDataModel> saleProducts)
+    {
+        Id = id;
+        WorkerId = workerId;
+        BuyerId = buyerId;
+        DiscountType = discountType;
+        IsCancel = isCancel;
+        Products = saleProducts;
+        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 = Products?.Sum(x => x.Price * x.Count) ?? 0;
+        Discount = Sum * percent;
+    }
+
+    public SaleDataModel(string id, string workerId, string? buyerId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleProductDataModel> saleProducts, WorkerDataModel worker, BuyerDataModel? buyer) : this(id, workerId, buyerId, discountType, isCancel, saleProducts)
+    {
+        Sum = sum;
+        Discount = discount;
+        _worker = worker;
+        _buyer = buyer;
+    }
+
+    public SaleDataModel(string id, string workerId, string? buyerId, int discountType, List<SaleProductDataModel> products) : this(id, workerId, buyerId, (DiscountType)discountType, false, products) { }
+
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "Id"));
+
+        if (!Id.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "Id"));
+
+        if (WorkerId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "WorkerId"));
+
+        if (!WorkerId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "WorkerId"));
+
+        if (!BuyerId?.IsGuid() ?? !BuyerId?.IsEmpty() ?? false)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "BuyerId"));
+
+        if (Sum <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "Sum"));
+
+        if (Products is null)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotInitialized"], "Products"));
+
+        if (Products.Count == 0)
+            throw new ValidationException(localizer["ValidationExceptionMessageNoProductsInSale"]);
+
+        Products.ForEach(x => x.Validate(localizer));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/SaleProductDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/SaleProductDataModel.cs
@@ -0,0 +1,47 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class SaleProductDataModel(string saleId, string productId, int count, double price) : IValidation
+{
+    private readonly ProductDataModel? _product;
+    public string SaleId { get; private set; } = saleId;
+    public string ProductId { get; private set; } = productId;
+    public int Count { get; private set; } = count;
+    public double Price { get; private set; } = price;
+
+    public string ProductName => _product?.ProductName ?? string.Empty;
+    public SaleProductDataModel(string saleId, string productId, int count, double price, ProductDataModel product) : this(saleId, productId, count, price)
+    {
+        _product = product;
+    }
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (SaleId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "SaleId"));
+
+        if (!SaleId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "SaleId"));
+
+        if (ProductId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "IProductIdd"));
+
+        if (!ProductId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "ProductId"));
+
+        if (Count <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "Count"));
+
+        if (Price <= 0)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageLessOrEqualZero"], "Price"));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/WorkerDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/WorkerDataModel.cs
@@ -0,0 +1,64 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using TopazContracts.Exceptions;
+using TopazContracts.Extensions;
+using TopazContracts.Infrastructure;
+using TopazContracts.Infrastructure.PostConfigurations;
+using TopazContracts.Resources;
+
+namespace TopazContracts.DataModels;
+
+internal class WorkerDataModel (string id, string fio, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
+{
+    private readonly PostDataModel? _post;
+    public string Id { get; private set; } = id;
+    public string FIO { get; private set; } = fio;
+    public string PostId { get; private set; } = postId;
+    public DateTime BirthDate { get; private set; } = birthDate.ToUniversalTime();
+    public DateTime EmploymentDate { get; private set; } = employmentDate.ToUniversalTime();
+    public bool IsDeleted { get; private set; } = isDeleted;
+    public string PostName => _post?.PostName ?? string.Empty;
+    public PostConfiguration Configuration => _post?.ConfigurationModel ?? new() { Rate = 0 };
+
+    public WorkerDataModel(string id, string fio, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted, PostDataModel post) : this(id, fio, postId, birthDate, employmentDate, isDeleted)
+    {
+        _post = post;
+    }
+
+    public WorkerDataModel(string id, string fio, string postId, DateTime birthDate, DateTime employmentDate) : this(id, fio, postId, birthDate, employmentDate, false) { }
+
+
+    public void Validate(IStringLocalizer<Messages> localizer)
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "Id"));
+
+        if (!Id.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "Id"));
+
+        if (FIO.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "FIO"));
+
+        if (PostId.IsEmpty())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmptyField"], "PostId"));
+
+        if (!PostId.IsGuid())
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageNotAId"], "PostId"));
+
+        if (BirthDate.Date > DateTime.Now.AddYears(-14).Date)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageMinorsBirthDate"], BirthDate.ToShortDateString()));
+
+        if (EmploymentDate.Date < BirthDate.Date)
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageEmploymentDateAndBirthDate"],
+                EmploymentDate.ToShortDateString(), BirthDate.ToShortDateString()));
+
+        if ((EmploymentDate - BirthDate).TotalDays / 365 < 14) // EmploymentDate.Year - BirthDate.Year
+            throw new ValidationException(string.Format(localizer["ValidationExceptionMessageMinorsEmploymentDate"],
+                EmploymentDate.ToShortDateString(), BirthDate.ToShortDateString()));
+    }
+}
--- a/TopazContracts/TopazContracts/DataModels/WorkerSalaryByPeriodDataModel.cs
+++ b/TopazContracts/TopazContracts/DataModels/WorkerSalaryByPeriodDataModel.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.DataModels;
+
+public class WorkerSalaryByPeriodDataModel
+{
+    public required string WorkerFIO { get; set; }
+
+    public double TotalSalary { get; set; }
+
+    public DateTime FromPeriod { get; set; }
+
+    public DateTime ToPeriod { get; set; }
+}
--- a/TopazContracts/TopazContracts/Enums/ComponentType.cs
+++ b/TopazContracts/TopazContracts/Enums/ComponentType.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Enums;
+
+public enum ComponentType
+{
+    None = 0,
+    Gold = 1,
+    Silver = 2,
+    platinum = 3,
+    Melchior = 4,
+    Brass = 5
+}
--- a/TopazContracts/TopazContracts/Enums/DiscountType.cs
+++ b/TopazContracts/TopazContracts/Enums/DiscountType.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Enums;
+[Flags]
+public enum DiscountType
+{ 
+    None = 0,
+	OnSale = 1,
+	RegularCustomer = 2,
+	Certificate = 4
+}
--- a/TopazContracts/TopazContracts/Enums/PostType.cs
+++ b/TopazContracts/TopazContracts/Enums/PostType.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Enums;
+
+public enum PostType
+{
+    None = 0,
+    Supervisor = 1,
+    CashierConsultant = 2,
+    Assistant = 3
+}
--- a/TopazContracts/TopazContracts/Exceptions/ElementDeletedException.cs
+++ b/TopazContracts/TopazContracts/Exceptions/ElementDeletedException.cs
@@ -0,0 +1,13 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Resources;
+
+namespace TopazContracts.Exceptions;
+
+internal class ElementDeletedException(string id, IStringLocalizer<Messages> localizer) :
+    Exception(string.Format(localizer["ElementDeletedExceptionMessage"], id))
+{ }
--- a/TopazContracts/TopazContracts/Exceptions/ElementExistsException.cs
+++ b/TopazContracts/TopazContracts/Exceptions/ElementExistsException.cs
@@ -0,0 +1,17 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Resources;
+
+namespace TopazContracts.Exceptions;
+
+internal class ElementExistsException(string paramName, string paramValue, IStringLocalizer<Messages> localizer) :
+    Exception(string.Format(localizer["ElementExistsExceptionMessage"], paramValue, paramName))
+{
+    public string ParamName { get; private set; } = paramName;
+
+    public string ParamValue { get; private set; } = paramValue;
+}
--- a/TopazContracts/TopazContracts/Exceptions/ElementNotFoundException.cs
+++ b/TopazContracts/TopazContracts/Exceptions/ElementNotFoundException.cs
@@ -0,0 +1,15 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Resources;
+
+namespace TopazContracts.Exceptions;
+
+internal class ElementNotFoundException(string value, IStringLocalizer<Messages> localizer) :
+    Exception(string.Format(localizer["ElementNotFoundExceptionMessage"], value))
+{
+    public string Value { get; private set; } = value;
+}
--- a/TopazContracts/TopazContracts/Exceptions/IncorrectDatesException.cs
+++ b/TopazContracts/TopazContracts/Exceptions/IncorrectDatesException.cs
@@ -0,0 +1,14 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Resources;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace TopazContracts.Exceptions;
+
+internal class IncorrectDatesException(DateTime start, DateTime end, IStringLocalizer<Messages> localizer) :
+    Exception(string.Format(localizer["IncorrectDatesExceptionMessage"], start.ToShortDateString(), end.ToShortDateString()))
+{ }
--- a/TopazContracts/TopazContracts/Exceptions/StorageException.cs
+++ b/TopazContracts/TopazContracts/Exceptions/StorageException.cs
@@ -0,0 +1,13 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Resources;
+
+namespace TopazContracts.Exceptions;
+
+internal class StorageException(Exception ex, IStringLocalizer<Messages> localizer) :
+    Exception(string.Format(localizer["StorageExceptionMessage"], ex.Message), ex)
+{ }
--- a/TopazContracts/TopazContracts/Exceptions/ValidationException.cs
+++ b/TopazContracts/TopazContracts/Exceptions/ValidationException.cs
@@ -0,0 +1,4 @@
+namespace TopazContracts.Exceptions;
+public class ValidationException  (string message) : Exception(message)
+{
+}
--- a/TopazContracts/TopazContracts/Extensions/DateTimeExtensions.cs
+++ b/TopazContracts/TopazContracts/Extensions/DateTimeExtensions.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Extensions;
+
+public static class DateTimeExtensions
+{
+    public static bool IsDateNotOlder(this DateTime date, DateTime olderDate)
+    {
+        return date >= olderDate;
+    }
+}
--- a/TopazContracts/TopazContracts/Extensions/StringExtensions.cs
+++ b/TopazContracts/TopazContracts/Extensions/StringExtensions.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Extensions;
+
+public static class StringExtensions
+{
+    public static bool IsEmpty(this string str)
+    {
+        return string.IsNullOrWhiteSpace(str);
+    }
+    public static bool IsGuid(this string str)
+    {
+        return Guid.TryParse(str, out _);
+    }
+}
--- a/TopazContracts/TopazContracts/Infrastructure/IConfigurationDataBase.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/IConfigurationDataBase.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Infrastructure;
+
+public interface IConfigurationDataBase
+{
+    string ConnectionString { get; }
+}
--- a/TopazContracts/TopazContracts/Infrastructure/IConfigurationSalary.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/IConfigurationSalary.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Infrastructure;
+
+public interface IConfigurationSalary
+{
+    double ExtraSaleSum { get; }
+    int MaxConcurrentThreads { get; }
+}
--- a/TopazContracts/TopazContracts/Infrastructure/IValidation.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/IValidation.cs
@@ -0,0 +1,14 @@
+using Microsoft.Extensions.Localization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.Resources;
+
+namespace TopazContracts.Infrastructure;
+
+internal interface IValidation
+{
+    void Validate(IStringLocalizer<Messages> localizer);
+}
--- a/TopazContracts/TopazContracts/Infrastructure/OperationResponse.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/OperationResponse.cs
@@ -0,0 +1,47 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System.Net;
+
+
+namespace TopazContracts.Infrastructure;
+
+public class OperationResponse
+{
+    protected HttpStatusCode StatusCode { get; set; }
+
+    protected object? Result { get; set; }
+    protected string? FileName { 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);
+        }
+        if (Result is Stream stream)
+        {
+            return new FileStreamResult(stream, "application/octet-stream")
+            {
+                FileDownloadName = FileName
+            };
+        }
+        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 OK<TResult, TData>(TData data, string fileName) where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.OK, Result = data, FileName = fileName };
+
+    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 };
+}
--- a/TopazContracts/TopazContracts/Infrastructure/PostConfigurations/CashierPostConfiguration.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/PostConfigurations/CashierPostConfiguration.cs
@@ -0,0 +1,25 @@
+using Microsoft.Extensions.Configuration;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Infrastructure.PostConfigurations;
+
+public class CashierPostConfiguration : PostConfiguration
+{
+    public override string Type => nameof(CashierPostConfiguration);
+
+    public double SalePercent { get; set; }
+
+    public double BonusForExtraSales { get; set; }
+
+    public CashierPostConfiguration(IConfiguration config = null)
+    {
+        if (config != null)
+        {
+            config.GetSection("CashierSettings").Bind(this);
+        }
+    }
+}
--- a/TopazContracts/TopazContracts/Infrastructure/PostConfigurations/PostConfiguration.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/PostConfigurations/PostConfiguration.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Infrastructure.PostConfigurations;
+
+public class PostConfiguration
+{
+    public virtual string Type => nameof(PostConfiguration);
+    public double Rate { get; set; }
+    public string CultureName { get; set; } = CultureInfo.CurrentCulture.Name;
+}
--- a/TopazContracts/TopazContracts/Infrastructure/PostConfigurations/SupervisorPostConfiguration.cs
+++ b/TopazContracts/TopazContracts/Infrastructure/PostConfigurations/SupervisorPostConfiguration.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.Infrastructure.PostConfigurations;
+
+public class SupervisorPostConfiguration : PostConfiguration
+{
+    public override string Type => nameof(SupervisorPostConfiguration);
+    public double PersonalCountTrendPremium { get; set; }
+}
--- a/TopazContracts/TopazContracts/Resources/Messages.Designer.cs
+++ b/TopazContracts/TopazContracts/Resources/Messages.Designer.cs
@@ -0,0 +1,414 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Этот код создан программой.
+//     Исполняемая версия:4.0.30319.42000
+//
+//     Изменения в этом файле могут привести к неправильной работе и будут потеряны в случае
+//     повторной генерации кода.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace TopazContracts.Resources {
+    using System;
+    
+    
+    /// <summary>
+    ///   Класс ресурса со строгой типизацией для поиска локализованных строк и т.д.
+    /// </summary>
+    // Этот класс создан автоматически классом StronglyTypedResourceBuilder
+    // с помощью такого средства, как ResGen или Visual Studio.
+    // Чтобы добавить или удалить член, измените файл .ResX и снова запустите ResGen
+    // с параметром /str или перестройте свой проект VS.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Messages {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Messages() {
+        }
+        
+        /// <summary>
+        ///   Возвращает кэшированный экземпляр ResourceManager, использованный этим классом.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("TopazContracts.Resources.Messages", typeof(Messages).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Перезаписывает свойство CurrentUICulture текущего потока для всех
+        ///   обращений к ресурсу с помощью этого класса ресурса со строгой типизацией.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Элемент по данным: {0} был удален.
+        /// </summary>
+        internal static string AdapterMessageElementDeletedException {
+            get {
+                return ResourceManager.GetString("AdapterMessageElementDeletedException", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Не найден элемент по данным: {0}.
+        /// </summary>
+        internal static string AdapterMessageElementNotFoundException {
+            get {
+                return ResourceManager.GetString("AdapterMessageElementNotFoundException", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Данные пусты.
+        /// </summary>
+        internal static string AdapterMessageEmptyDate {
+            get {
+                return ResourceManager.GetString("AdapterMessageEmptyDate", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Неправильные даты: {0}.
+        /// </summary>
+        internal static string AdapterMessageIncorrectDatesException {
+            get {
+                return ResourceManager.GetString("AdapterMessageIncorrectDatesException", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Ошибка при обработке данных: {0}.
+        /// </summary>
+        internal static string AdapterMessageInvalidOperationException {
+            get {
+                return ResourceManager.GetString("AdapterMessageInvalidOperationException", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Ошибка при работе с хранилищем данных: {0}.
+        /// </summary>
+        internal static string AdapterMessageStorageException {
+            get {
+                return ResourceManager.GetString("AdapterMessageStorageException", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Переданы неверные данные: {0}.
+        /// </summary>
+        internal static string AdapterMessageValidationException {
+            get {
+                return ResourceManager.GetString("AdapterMessageValidationException", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Производитель.
+        /// </summary>
+        internal static string DocumentDocCaptionManufacturer {
+            get {
+                return ResourceManager.GetString("DocumentDocCaptionManufacturer", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Товар.
+        /// </summary>
+        internal static string DocumentDocCaptionProduct {
+            get {
+                return ResourceManager.GetString("DocumentDocCaptionProduct", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Продукты по производителям.
+        /// </summary>
+        internal static string DocumentDocHeader {
+            get {
+                return ResourceManager.GetString("DocumentDocHeader", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Сформировано на дату {0}.
+        /// </summary>
+        internal static string DocumentDocSubHeader {
+            get {
+                return ResourceManager.GetString("DocumentDocSubHeader", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Кол-во.
+        /// </summary>
+        internal static string DocumentExcelCaptionCount {
+            get {
+                return ResourceManager.GetString("DocumentExcelCaptionCount", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Дата.
+        /// </summary>
+        internal static string DocumentExcelCaptionDate {
+            get {
+                return ResourceManager.GetString("DocumentExcelCaptionDate", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Скидка.
+        /// </summary>
+        internal static string DocumentExcelCaptionDiscount {
+            get {
+                return ResourceManager.GetString("DocumentExcelCaptionDiscount", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Товар.
+        /// </summary>
+        internal static string DocumentExcelCaptionProduct {
+            get {
+                return ResourceManager.GetString("DocumentExcelCaptionProduct", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Сумма.
+        /// </summary>
+        internal static string DocumentExcelCaptionSum {
+            get {
+                return ResourceManager.GetString("DocumentExcelCaptionSum", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Всего.
+        /// </summary>
+        internal static string DocumentExcelCaptionTotal {
+            get {
+                return ResourceManager.GetString("DocumentExcelCaptionTotal", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Продажи за период.
+        /// </summary>
+        internal static string DocumentExcelHeader {
+            get {
+                return ResourceManager.GetString("DocumentExcelHeader", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на c {0} по {1}.
+        /// </summary>
+        internal static string DocumentExcelSubHeader {
+            get {
+                return ResourceManager.GetString("DocumentExcelSubHeader", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Начисления.
+        /// </summary>
+        internal static string DocumentPdfDiagramCaption {
+            get {
+                return ResourceManager.GetString("DocumentPdfDiagramCaption", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Зарплатная ведомость.
+        /// </summary>
+        internal static string DocumentPdfHeader {
+            get {
+                return ResourceManager.GetString("DocumentPdfHeader", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на за период с {0} по {1}.
+        /// </summary>
+        internal static string DocumentPdfSubHeader {
+            get {
+                return ResourceManager.GetString("DocumentPdfSubHeader", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Нельзя изменить удаленный элемент (идентификатор: {0}).
+        /// </summary>
+        internal static string ElementDeletedExceptionMessage {
+            get {
+                return ResourceManager.GetString("ElementDeletedExceptionMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Уже существует элемент со значением {0} параметра {1}.
+        /// </summary>
+        internal static string ElementExistsExceptionMessage {
+            get {
+                return ResourceManager.GetString("ElementExistsExceptionMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Элемент не найден по значению = {0}.
+        /// </summary>
+        internal static string ElementNotFoundExceptionMessage {
+            get {
+                return ResourceManager.GetString("ElementNotFoundExceptionMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Дата окончания должна быть позже даты начала. Дата начала: {0}. Дата окончания: {1}.
+        /// </summary>
+        internal static string IncorrectDatesExceptionMessage {
+            get {
+                return ResourceManager.GetString("IncorrectDatesExceptionMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Недостаточно данных для обработки: {0}.
+        /// </summary>
+        internal static string NotEnoughDataToProcessExceptionMessage {
+            get {
+                return ResourceManager.GetString("NotEnoughDataToProcessExceptionMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Не найдены данные.
+        /// </summary>
+        internal static string NotFoundDataMessage {
+            get {
+                return ResourceManager.GetString("NotFoundDataMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Ошибка при работе в хранилище: {0}.
+        /// </summary>
+        internal static string StorageExceptionMessage {
+            get {
+                return ResourceManager.GetString("StorageExceptionMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Дата трудоустройства не может быть раньше даты рождения ({0}, {1}).
+        /// </summary>
+        internal static string ValidationExceptionMessageEmploymentDateAndBirthDate {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageEmploymentDateAndBirthDate", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Значение в поле {0} пусто.
+        /// </summary>
+        internal static string ValidationExceptionMessageEmptyField {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageEmptyField", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Значение в поле ФИО не является ФИО.
+        /// </summary>
+        internal static string ValidationExceptionMessageIncorrectFIO {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageIncorrectFIO", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Значение в поле Телефонный номер не является телефонным номером.
+        /// </summary>
+        internal static string ValidationExceptionMessageIncorrectPhoneNumber {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageIncorrectPhoneNumber", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Значение в поле {0} меньше или равно 0.
+        /// </summary>
+        internal static string ValidationExceptionMessageLessOrEqualZero {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageLessOrEqualZero", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Несовершеннолетние не могут быть приняты на работу (Дата рождения: {0}).
+        /// </summary>
+        internal static string ValidationExceptionMessageMinorsBirthDate {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageMinorsBirthDate", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Несовершеннолетние не могут быть приняты на работу (Дата трудоустройства {0}, Дата рождения: {1}).
+        /// </summary>
+        internal static string ValidationExceptionMessageMinorsEmploymentDate {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageMinorsEmploymentDate", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на В продаже должен быть хотя бы один товар.
+        /// </summary>
+        internal static string ValidationExceptionMessageNoProductsInSale {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageNoProductsInSale", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Значение в поле {0} не является типом уникального идентификатора.
+        /// </summary>
+        internal static string ValidationExceptionMessageNotAId {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageNotAId", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Ищет локализованную строку, похожую на Значение в поле {0} не проиницализировано.
+        /// </summary>
+        internal static string ValidationExceptionMessageNotInitialized {
+            get {
+                return ResourceManager.GetString("ValidationExceptionMessageNotInitialized", resourceCulture);
+            }
+        }
+    }
+}
--- a/TopazContracts/TopazContracts/Resources/Messages.de-DE.resx
+++ b/TopazContracts/TopazContracts/Resources/Messages.de-DE.resx
@@ -0,0 +1,237 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="AdapterMessageElementDeletedException" xml:space="preserve">
+    <value>Element mit Daten: {0} </value>
+  </data>
+  <data name="AdapterMessageElementNotFoundException" xml:space="preserve">
+    <value>Element mit Daten: {0} nicht gefunden</value>
+  </data>
+  <data name="AdapterMessageEmptyDate" xml:space="preserve">
+    <value>Daten sind leer</value>
+  </data>
+  <data name="AdapterMessageIncorrectDatesException" xml:space="preserve">
+    <value>Ungültige Datumsangaben: {0}</value>
+  </data>
+  <data name="AdapterMessageInvalidOperationException" xml:space="preserve">
+    <value>Fehler bei der Datenverarbeitung: {0}</value>
+  </data>
+  <data name="AdapterMessageStorageException" xml:space="preserve">
+    <value>Fehler beim Zugriff auf den Datenspeicher: {0}</value>
+  </data>
+  <data name="AdapterMessageValidationException" xml:space="preserve">
+    <value>Ungültige Daten übermittelt: {0}</value>
+  </data>
+  <data name="DocumentDocCaptionManufacturer" xml:space="preserve">
+    <value>Hersteller</value>
+  </data>
+  <data name="DocumentDocCaptionProduct" xml:space="preserve">
+    <value>Product</value>
+  </data>
+  <data name="DocumentDocHeader" xml:space="preserve">
+    <value>Komponenten nach Hersteller</value>
+  </data>
+  <data name="DocumentDocSubHeader" xml:space="preserve">
+    <value>Erstellt am {0}</value>
+  </data>
+  <data name="DocumentExcelCaptionCount" xml:space="preserve">
+    <value>Anzahl</value>
+  </data>
+  <data name="DocumentExcelCaptionDate" xml:space="preserve">
+    <value>Datum</value>
+  </data>
+  <data name="DocumentExcelCaptionDiscount" xml:space="preserve">
+    <value>Rabatt</value>
+  </data>
+  <data name="DocumentExcelCaptionProduct" xml:space="preserve">
+    <value>Produkt</value>
+  </data>
+  <data name="DocumentExcelCaptionSum" xml:space="preserve">
+    <value>Summe</value>
+  </data>
+  <data name="DocumentExcelCaptionTotal" xml:space="preserve">
+    <value>Gesamtbetrag</value>
+  </data>
+  <data name="DocumentExcelHeader" xml:space="preserve">
+    <value>Verkäufe im Zeitraum</value>
+  </data>
+  <data name="DocumentExcelSubHeader" xml:space="preserve">
+    <value>von {0} bis {1}</value>
+  </data>
+  <data name="DocumentPdfDiagramCaption" xml:space="preserve">
+    <value>Abrechnungen</value>
+  </data>
+  <data name="DocumentPdfHeader" xml:space="preserve">
+    <value>Gehaltsabrechnung</value>
+  </data>
+  <data name="DocumentPdfSubHeader" xml:space="preserve">
+    <value> für den Zeitraum von {0} bis {1}</value>
+  </data>
+  <data name="ElementDeletedExceptionMessage" xml:space="preserve">
+    <value>Ein gelöschtes Element (ID: {0}) kann nicht bearbeitet werden</value>
+  </data>
+  <data name="ElementExistsExceptionMessage" xml:space="preserve">
+    <value>Es existiert bereits ein Element mit Wert {0} für Parameter {1}</value>
+  </data>
+  <data name="ElementNotFoundExceptionMessage" xml:space="preserve">
+    <value>Element mit Wert = {0} nicht gefunden</value>
+  </data>
+  <data name="IncorrectDatesExceptionMessage" xml:space="preserve">
+    <value>Das Enddatum muss nach dem Startdatum liegen. Startdatum: {0}. Enddatum: {1}</value>
+  </data>
+  <data name="NotEnoughDataToProcessExceptionMessage" xml:space="preserve">
+    <value>Unzureichende Daten zur Verarbeitung: {0}</value>
+  </data>
+  <data name="NotFoundDataMessage" xml:space="preserve">
+    <value>Keine Daten gefunden</value>
+  </data>
+  <data name="StorageExceptionMessage" xml:space="preserve">
+    <value>Fehler beim Arbeiten im Speicher: {0}</value>
+  </data>
+  <data name="ValidationExceptionMessageEmploymentDateAndBirthDate" xml:space="preserve">
+    <value>Das Einstellungsdatum kann nicht vor dem Geburtsdatum liegen ({0}, {1})</value>
+  </data>
+  <data name="ValidationExceptionMessageEmptyField" xml:space="preserve">
+    <value>Das Feld {0} ist leer</value>
+  </data>
+  <data name="ValidationExceptionMessageIncorrectFIO" xml:space="preserve">
+    <value>Der Wert im Feld NAME ist kein vollständiger Name.</value>
+  </data>
+  <data name="ValidationExceptionMessageIncorrectPhoneNumber" xml:space="preserve">
+    <value>Der Wert im Feld TELEFONNUMMER ist keine gültige Telefonnummer.</value>
+  </data>
+  <data name="ValidationExceptionMessageLessOrEqualZero" xml:space="preserve">
+    <value>Der Wert im Feld {0} ist kleiner oder gleich 0</value>
+  </data>
+  <data name="ValidationExceptionMessageMinorsBirthDate" xml:space="preserve">
+    <value>Minderjährige können nicht eingestellt werden (Geburtsdatum = {0})</value>
+  </data>
+  <data name="ValidationExceptionMessageMinorsEmploymentDate" xml:space="preserve">
+    <value>Minderjährige können nicht eingestellt werden (Einstellungsdatum: {0}, Geburtsdatum: {1})</value>
+  </data>
+  <data name="ValidationExceptionMessageNoProductsInSale" xml:space="preserve">
+    <value>Es muss mindestens ein Artikel zum Verkauf stehen</value>
+  </data>
+  <data name="ValidationExceptionMessageNotAId" xml:space="preserve">
+    <value>Der Wert im Feld {0} ist kein eindeutiger Identifikator.</value>
+  </data>
+  <data name="ValidationExceptionMessageNotInitialized" xml:space="preserve">
+    <value>Der Wert im Feld {0} ist nicht initialisiert</value>
+  </data>
+</root>
--- a/TopazContracts/TopazContracts/Resources/Messages.en-US.resx
+++ b/TopazContracts/TopazContracts/Resources/Messages.en-US.resx
@@ -0,0 +1,237 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="AdapterMessageElementDeletedException" xml:space="preserve">
+    <value>Element by data: {0} was deleted</value>
+  </data>
+  <data name="AdapterMessageElementNotFoundException" xml:space="preserve">
+    <value>Not found element by data: {0}</value>
+  </data>
+  <data name="AdapterMessageEmptyDate" xml:space="preserve">
+    <value>Data is empty</value>
+  </data>
+  <data name="AdapterMessageIncorrectDatesException" xml:space="preserve">
+    <value>Incorrect dates: {0}</value>
+  </data>
+  <data name="AdapterMessageInvalidOperationException" xml:space="preserve">
+    <value>Error processing data: {0}</value>
+  </data>
+  <data name="AdapterMessageStorageException" xml:space="preserve">
+    <value>Error while working with data storage: {0}</value>
+  </data>
+  <data name="AdapterMessageValidationException" xml:space="preserve">
+    <value>Incorrect data transmitted: {0}</value>
+  </data>
+  <data name="DocumentDocCaptionManufacturer" xml:space="preserve">
+    <value>Manufacturer</value>
+  </data>
+  <data name="DocumentDocCaptionProduct" xml:space="preserve">
+    <value>Product</value>
+  </data>
+  <data name="DocumentDocHeader" xml:space="preserve">
+    <value>Products by Manufacturer</value>
+  </data>
+  <data name="DocumentDocSubHeader" xml:space="preserve">
+    <value>Generated on date {0}</value>
+  </data>
+  <data name="DocumentExcelCaptionCount" xml:space="preserve">
+    <value>Count</value>
+  </data>
+  <data name="DocumentExcelCaptionDate" xml:space="preserve">
+    <value>Date</value>
+  </data>
+  <data name="DocumentExcelCaptionDiscount" xml:space="preserve">
+    <value>Discount</value>
+  </data>
+  <data name="DocumentExcelCaptionProduct" xml:space="preserve">
+    <value>Product</value>
+  </data>
+  <data name="DocumentExcelCaptionSum" xml:space="preserve">
+    <value>Sum</value>
+  </data>
+  <data name="DocumentExcelCaptionTotal" xml:space="preserve">
+    <value>Total</value>
+  </data>
+  <data name="DocumentExcelHeader" xml:space="preserve">
+    <value>Sales for the period</value>
+  </data>
+  <data name="DocumentExcelSubHeader" xml:space="preserve">
+    <value>from {0} to {1}</value>
+  </data>
+  <data name="DocumentPdfDiagramCaption" xml:space="preserve">
+    <value>Accruals</value>
+  </data>
+  <data name="DocumentPdfHeader" xml:space="preserve">
+    <value>Payroll</value>
+  </data>
+  <data name="DocumentPdfSubHeader" xml:space="preserve">
+    <value>for the period from {0} to {1}</value>
+  </data>
+  <data name="ElementDeletedExceptionMessage" xml:space="preserve">
+    <value>Cannot modify a deleted item (id: {0})</value>
+  </data>
+  <data name="ElementExistsExceptionMessage" xml:space="preserve">
+    <value>There is already an element with value {0} of parameter {1}</value>
+  </data>
+  <data name="ElementNotFoundExceptionMessage" xml:space="preserve">
+    <value>Element not found at value = {0}</value>
+  </data>
+  <data name="IncorrectDatesExceptionMessage" xml:space="preserve">
+    <value>The end date must be later than the start date.. StartDate: {0}. EndDate: {1}</value>
+  </data>
+  <data name="NotEnoughDataToProcessExceptionMessage" xml:space="preserve">
+    <value>Not enough data to process: {0}</value>
+  </data>
+  <data name="NotFoundDataMessage" xml:space="preserve">
+    <value>No data found</value>
+  </data>
+  <data name="StorageExceptionMessage" xml:space="preserve">
+    <value>Error while working in storage: {0}</value>
+  </data>
+  <data name="ValidationExceptionMessageEmploymentDateAndBirthDate" xml:space="preserve">
+    <value>Date of employment cannot be earlier than date of birth ({0}, {1})</value>
+  </data>
+  <data name="ValidationExceptionMessageEmptyField" xml:space="preserve">
+    <value>The value in field {0} is empty</value>
+  </data>
+  <data name="ValidationExceptionMessageIncorrectFIO" xml:space="preserve">
+    <value>The value in the Phone Number field is not a phone number.</value>
+  </data>
+  <data name="ValidationExceptionMessageIncorrectPhoneNumber" xml:space="preserve">
+    <value>The value in the Phone Number field is not a phone number.</value>
+  </data>
+  <data name="ValidationExceptionMessageLessOrEqualZero" xml:space="preserve">
+    <value>The value in field {0} is less than or equal to 0</value>
+  </data>
+  <data name="ValidationExceptionMessageMinorsBirthDate" xml:space="preserve">
+    <value>Minors cannot be hired (BirthDate = {0})</value>
+  </data>
+  <data name="ValidationExceptionMessageMinorsEmploymentDate" xml:space="preserve">
+    <value>Minors cannot be hired (EmploymentDate: {0}, BirthDate {1})</value>
+  </data>
+  <data name="ValidationExceptionMessageNoProductsInSale" xml:space="preserve">
+    <value>There must be at least one item on sale</value>
+  </data>
+  <data name="ValidationExceptionMessageNotAId" xml:space="preserve">
+    <value>The value in the {0} field is not a unique identifier type.</value>
+  </data>
+  <data name="ValidationExceptionMessageNotInitialized" xml:space="preserve">
+    <value>The value in field {0} is not initialized</value>
+  </data>
+</root>
--- a/TopazContracts/TopazContracts/Resources/Messages.resx
+++ b/TopazContracts/TopazContracts/Resources/Messages.resx
@@ -0,0 +1,237 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="AdapterMessageElementDeletedException" xml:space="preserve">
+    <value>Элемент по данным: {0} был удален</value>
+  </data>
+  <data name="AdapterMessageElementNotFoundException" xml:space="preserve">
+    <value>Не найден элемент по данным: {0}</value>
+  </data>
+  <data name="AdapterMessageEmptyDate" xml:space="preserve">
+    <value>Данные пусты</value>
+  </data>
+  <data name="AdapterMessageIncorrectDatesException" xml:space="preserve">
+    <value>Неправильные даты: {0}</value>
+  </data>
+  <data name="AdapterMessageInvalidOperationException" xml:space="preserve">
+    <value>Ошибка при обработке данных: {0}</value>
+  </data>
+  <data name="AdapterMessageStorageException" xml:space="preserve">
+    <value>Ошибка при работе с хранилищем данных: {0}</value>
+  </data>
+  <data name="AdapterMessageValidationException" xml:space="preserve">
+    <value>Переданы неверные данные: {0}</value>
+  </data>
+  <data name="DocumentDocCaptionManufacturer" xml:space="preserve">
+    <value>Производитель</value>
+  </data>
+  <data name="DocumentDocCaptionProduct" xml:space="preserve">
+    <value>Товар</value>
+  </data>
+  <data name="DocumentDocHeader" xml:space="preserve">
+    <value>Продукты по производителям</value>
+  </data>
+  <data name="DocumentDocSubHeader" xml:space="preserve">
+    <value>Сформировано на дату {0}</value>
+  </data>
+  <data name="DocumentExcelCaptionCount" xml:space="preserve">
+    <value>Кол-во</value>
+  </data>
+  <data name="DocumentExcelCaptionDate" xml:space="preserve">
+    <value>Дата</value>
+  </data>
+  <data name="DocumentExcelCaptionDiscount" xml:space="preserve">
+    <value>Скидка</value>
+  </data>
+  <data name="DocumentExcelCaptionProduct" xml:space="preserve">
+    <value>Товар</value>
+  </data>
+  <data name="DocumentExcelCaptionSum" xml:space="preserve">
+    <value>Сумма</value>
+  </data>
+  <data name="DocumentExcelCaptionTotal" xml:space="preserve">
+    <value>Всего</value>
+  </data>
+  <data name="DocumentExcelHeader" xml:space="preserve">
+    <value>Продажи за период</value>
+  </data>
+  <data name="DocumentExcelSubHeader" xml:space="preserve">
+    <value>c {0} по {1}</value>
+  </data>
+  <data name="DocumentPdfDiagramCaption" xml:space="preserve">
+    <value>Начисления</value>
+  </data>
+  <data name="DocumentPdfHeader" xml:space="preserve">
+    <value>Зарплатная ведомость</value>
+  </data>
+  <data name="DocumentPdfSubHeader" xml:space="preserve">
+    <value>за период с {0} по {1}</value>
+  </data>
+  <data name="ElementDeletedExceptionMessage" xml:space="preserve">
+    <value>Нельзя изменить удаленный элемент (идентификатор: {0})</value>
+  </data>
+  <data name="ElementExistsExceptionMessage" xml:space="preserve">
+    <value>Уже существует элемент со значением {0} параметра {1}</value>
+  </data>
+  <data name="ElementNotFoundExceptionMessage" xml:space="preserve">
+    <value>Элемент не найден по значению = {0}</value>
+  </data>
+  <data name="IncorrectDatesExceptionMessage" xml:space="preserve">
+    <value>Дата окончания должна быть позже даты начала. Дата начала: {0}. Дата окончания: {1}</value>
+  </data>
+  <data name="NotEnoughDataToProcessExceptionMessage" xml:space="preserve">
+    <value>Недостаточно данных для обработки: {0}</value>
+  </data>
+  <data name="NotFoundDataMessage" xml:space="preserve">
+    <value>Не найдены данные</value>
+  </data>
+  <data name="StorageExceptionMessage" xml:space="preserve">
+    <value>Ошибка при работе в хранилище: {0}</value>
+  </data>
+  <data name="ValidationExceptionMessageEmploymentDateAndBirthDate" xml:space="preserve">
+    <value>Дата трудоустройства не может быть раньше даты рождения ({0}, {1})</value>
+  </data>
+  <data name="ValidationExceptionMessageEmptyField" xml:space="preserve">
+    <value>Значение в поле {0} пусто</value>
+  </data>
+  <data name="ValidationExceptionMessageIncorrectFIO" xml:space="preserve">
+    <value>Значение в поле ФИО не является ФИО</value>
+  </data>
+  <data name="ValidationExceptionMessageIncorrectPhoneNumber" xml:space="preserve">
+    <value>Значение в поле Телефонный номер не является телефонным номером</value>
+  </data>
+  <data name="ValidationExceptionMessageLessOrEqualZero" xml:space="preserve">
+    <value>Значение в поле {0} меньше или равно 0</value>
+  </data>
+  <data name="ValidationExceptionMessageMinorsBirthDate" xml:space="preserve">
+    <value>Несовершеннолетние не могут быть приняты на работу (Дата рождения: {0})</value>
+  </data>
+  <data name="ValidationExceptionMessageMinorsEmploymentDate" xml:space="preserve">
+    <value>Несовершеннолетние не могут быть приняты на работу (Дата трудоустройства {0}, Дата рождения: {1})</value>
+  </data>
+  <data name="ValidationExceptionMessageNoProductsInSale" xml:space="preserve">
+    <value>В продаже должен быть хотя бы один товар</value>
+  </data>
+  <data name="ValidationExceptionMessageNotAId" xml:space="preserve">
+    <value>Значение в поле {0} не является типом уникального идентификатора</value>
+  </data>
+  <data name="ValidationExceptionMessageNotInitialized" xml:space="preserve">
+    <value>Значение в поле {0} не проиницализировано</value>
+  </data>
+</root>
--- a/TopazContracts/TopazContracts/StoragesContracts/IBuyerStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/IBuyerStorageContract.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface IBuyerStorageContract
+{
+    List<BuyerDataModel> GetList();
+    BuyerDataModel? GetElementById(string id);
+    BuyerDataModel? GetElementByFIO(string fio);
+    BuyerDataModel? GetElementByPhoneNumber(string phoneNumber);
+    void AddElement(BuyerDataModel buyerDataModel);
+    void UpdElement(BuyerDataModel buyerDataModel);
+    void DelElement(string id);
+}
--- a/TopazContracts/TopazContracts/StoragesContracts/IManufactureStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/IManufactureStorageContract.cs
@@ -0,0 +1,19 @@
+ using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface IManufactureStorageContract
+{
+    List<ManufactureDataModels> GetList();
+    ManufactureDataModels? GetElementById(string id);
+    ManufactureDataModels? GetElementByName(string name);
+    ManufactureDataModels? GetElementByOldName(string name);
+    void AddElement(ManufactureDataModels manufactureDataModel);
+    void UpdElement(ManufactureDataModels manufactureDataModel);
+    void DelElement(string id);
+}
--- a/TopazContracts/TopazContracts/StoragesContracts/IPostStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/IPostStorageContract.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface IPostStorageContract
+{
+    List<PostDataModel> GetList();
+    List<PostDataModel> GetPostWithHistory(string postid);
+    PostDataModel? GetElementById(string id);
+    PostDataModel? GetElementByName(string id);
+    void AddElement(PostDataModel postDataModel);
+    void UpdElement(PostDataModel postDataModel);
+    void DelElement(string id);
+    void ResElement(string id);
+}
--- a/TopazContracts/TopazContracts/StoragesContracts/IProductStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/IProductStorageContract.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface IProductStorageContract
+{
+    List<ProductDataModel> GetList(bool onlyActive = true, string? manufactureId = null);
+    Task<List<ProductDataModel>> GetListAsync(CancellationToken ct);
+    List<ProductHistoryDataModel> GetHistoryByProductId(string productId);
+    ProductDataModel? GetElementById(string id);
+    ProductDataModel? GetElementByName(string name);
+    void AddElement(ProductDataModel productDataModel);
+    void UpdElement(ProductDataModel productDataModel);
+    void DelElement(string id);
+}
--- a/TopazContracts/TopazContracts/StoragesContracts/ISalaryStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/ISalaryStorageContract.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface ISalaryStorageContract
+{
+    List<SalaryDataModel> GetList(DateTime startDate, DateTime endDate, string? workedId=null);
+    Task<List<SalaryDataModel>> GetListAsync(DateTime startDate, DateTime endDate, CancellationToken ct);
+    void AddElement(SalaryDataModel salaryDataModel);
+}
--- a/TopazContracts/TopazContracts/StoragesContracts/ISaleStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/ISaleStorageContract.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface ISaleStorageContract
+{
+    List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? workerId = null, string? buyerId = null, string? productId = null);
+
+    Task<List<SaleDataModel>> GetListAsync(DateTime startDate, DateTime endDate, CancellationToken ct);
+    SaleDataModel? GetElementById(string id);
+
+    void AddElement(SaleDataModel saleDataModel);
+
+    void DelElement(string id);
+
+}
--- a/TopazContracts/TopazContracts/StoragesContracts/IWorkerStorageContract.cs
+++ b/TopazContracts/TopazContracts/StoragesContracts/IWorkerStorageContract.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TopazContracts.DataModels;
+
+namespace TopazContracts.StoragesContracts;
+
+internal interface IWorkerStorageContract
+{
+    List<WorkerDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null);
+    WorkerDataModel? GetElementById(string id);
+    WorkerDataModel? GetElementByFIO(string fio);
+    void AddElement(WorkerDataModel workerDataModel);
+    void UpdElement(WorkerDataModel workerDataModel);
+    void DelElement(string id);
+    int GetWorkerTrend(DateTime fromPeriod, DateTime toPeriod);
+}
--- a/TopazContracts/TopazContracts/TopazContracts.csproj
+++ b/TopazContracts/TopazContracts/TopazContracts.csproj
@@ -6,4 +6,35 @@
    <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" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="9.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Localization.Abstractions" Version="9.0.4" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="Resources\Messages.Designer.cs">
+      <DesignTime>True</DesignTime>
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Messages.resx</DependentUpon>
+    </Compile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Update="Resources\Messages.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Messages.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
+	
+	<ItemGroup>
+		<InternalsVisibleTo Include="TopazBusinessLogic" />
+		<InternalsVisibleTo Include="TopazDataBase" />
+		<InternalsVisibleTo Include="TopazWebApi" />
+		<InternalsVisibleTo Include="TopazTests" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
 </Project>
--- a/TopazContracts/TopazContracts/ViewModels/BuyerViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/BuyerViewModel.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.ViewModels;
+
+public class BuyerViewModel
+{
+    public required string Id { get; set; }
+    public required string FIO { get; set; }
+    public required string PhoneNumber { get; set; }
+    public double DiscountSize { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/ManufacturerProductViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/ManufacturerProductViewModel.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.ViewModels;
+
+public class ManufacturerProductViewModel
+{
+    public required string ManufacturerName { get; set; }
+
+    public required List<string> Products { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/ManufacturerViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/ManufacturerViewModel.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.ViewModels;
+
+public class ManufacturerViewModel
+{
+    public required string Id { get; set; }
+
+    public required string ManufacturerName { get; set; }
+
+    public string? PrevManufacturerName { get; set; }
+
+    public string? PrevPrevManufacturerName { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/PostViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/PostViewModel.cs
@@ -0,0 +1,12 @@
+namespace TopazContracts.ViewModels;
+
+public class PostViewModel
+{
+	public required string Id { get; set; }
+
+	public required string PostName { get; set; }
+
+	public required string PostType { get; set; }
+
+    public required string Configuration { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/ProductHistoryViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/ProductHistoryViewModel.cs
@@ -0,0 +1,10 @@
+namespace TopazContracts.ViewModels;
+
+public class ProductHistoryViewModel
+{
+	public required string ProductName { get; set; }
+
+	public double OldPrice { get; set; }
+
+	public DateTime ChangeDate { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/ProductViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/ProductViewModel.cs
@@ -0,0 +1,18 @@
+namespace TopazContracts.ViewModels;
+
+public class ProductViewModel
+{
+	public required string Id { get; set; }
+
+	public required string ProductName { get; set; }
+
+	public required string ManufacturerId { get; set; }
+
+	public required string ManufacturerName { get; set; }
+
+	public required string ComponentType { get; set; }
+
+	public double Price { get; set; }
+
+	public bool IsDeleted { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/SalaryViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/SalaryViewModel.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.ViewModels;
+
+public class SalaryViewModel
+{
+    public required string WorkerId { get; set; }
+    public required string WorkerFIO { get; set; }
+    public DateTime SalaryDate { get; set; }
+    public double Salary { get; set; }
+    
+}
--- a/TopazContracts/TopazContracts/ViewModels/SaleProductViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/SaleProductViewModel.cs
@@ -0,0 +1,12 @@
+namespace TopazContracts.ViewModels;
+
+public class SaleProductViewModel
+{
+	public required string ProductId { get; set; }
+
+	public required string ProductName { get; set; }
+
+	public int Count { get; set; }
+
+	public double Price { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/SaleViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/SaleViewModel.cs
@@ -0,0 +1,28 @@
+using TopazContracts.ViewModels;
+
+namespace TopazContratcs.ViewModels;
+
+public class SaleViewModel
+{
+	public required string Id { get; set; }
+
+	public required string WorkerId { get; set; }
+
+	public required string WorkerFIO { get; set; }
+
+	public string? BuyerId { get; set; }
+
+	public string? BuyerFIO { get; set; }
+
+	public DateTime SaleDate { get; set; }
+
+	public double Sum { get; set; }
+
+	public required string DiscountType { get; set; }
+
+	public double Discount { get; set; }
+
+	public bool IsCancel { get; set; }
+
+	public required List<SaleProductViewModel> Products { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/WorkerSalaryByPeriodViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/WorkerSalaryByPeriodViewModel.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TopazContracts.ViewModels;
+
+public class WorkerSalaryByPeriodViewModel
+{
+    public required string WorkerFIO { get; set; }
+
+    public double TotalSalary { get; set; }
+
+    public DateTime FromPeriod { get; set; }
+
+    public DateTime ToPeriod { get; set; }
+}
--- a/TopazContracts/TopazContracts/ViewModels/WorkerViewModel.cs
+++ b/TopazContracts/TopazContracts/ViewModels/WorkerViewModel.cs
@@ -0,0 +1,18 @@
+namespace TopazContratcs.ViewModels;
+
+public class WorkerViewModel
+{
+	public required string Id { get; set; }
+
+	public required string FIO { get; set; }
+
+	public required string PostId { get; set; }
+
+	public required string PostName { get; set; }
+
+	public bool IsDeleted { get; set; }
+
+	public DateTime BirthDate { get; set; }
+
+	public DateTime EmploymentDate { get; set; }
+}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Мария Котова	5bb75d3159	7 лаба	2025-05-21 11:10:50 +04:00
Мария Котова	fc7f169408	6 лаба	2025-05-18 19:48:37 +04:00
Мария Котова	2f9cc8c4d2	Правки к реализации задания	2025-04-23 09:10:59 +04:00
Мария Котова	372d3d7434	лаба 4 готовая без доп изменений	2025-04-22 20:34:08 +04:00
Мария Котова	c7c42ba754	Изменения должности	2025-04-22 17:33:30 +04:00
Мария Котова	c5a204c1f4	Правки, надеюсь последние...	2025-04-08 15:26:39 +04:00
Мария Котова	b85097d7f9	Правки	2025-04-07 22:52:48 +04:00
Мария Котова	4dcf432f95	Salary	2025-04-07 11:18:47 +04:00
Мария Котова	71931dbb76	До Salary	2025-04-05 22:58:49 +04:00
Мария Котова	0a9a64f524	тесты итоговый	2025-03-23 16:54:04 +04:00
Мария Котова	44c3bbeaf3	Лабораторная 3 итоговый	2025-03-23 14:20:19 +04:00
Мария Котова	1c4f054107	Контракты	2025-03-12 00:02:29 +04:00
Мария Котова	9c0f464aae	DbContext	2025-03-11 19:09:24 +04:00
Мария Котова	403a032649	Проект и модели	2025-03-11 18:16:37 +04:00
Мария Котова	5217a791eb	Лабораторная работа №2	2025-02-26 09:13:08 +04:00
Мария Котова	a6fad4d7ca	Лабораторная работа №1 базовая	2025-02-12 10:37:08 +04:00