ProjectGasStation/ProjectGasStation/Entities/Enums/Category.cs

@@ -9,16 +9,16 @@ namespace ProjectGasStation.Entities.Enums;
 [Flags]
 public enum Category
 {
-    Fuel = 0,
+    None = 0,
-    Gas = 1,
+    Fuel = 1,
-    LiquidFuel = 2,
+    Oils = 2,
     Chemicals = 4,
-    Oils = 8,
+    Gas = 8,
-    CareProducts = 16,
+    LiquidFuel = 16,
-    CareForInterior = 32,
+    CareProducts = 32,
-    CareForBody = 64,
+    CareForInterior = 64,
-    MineralOils = 128,
+    CareForBody = 128,
-    SyntheticOils = 256,
+    MineralOils = 256,
-    None = 512
+    SyntheticOils = 512
 
 }

ProjectGasStation/ProjectGasStation/Entities/Sale.cs

@@ -11,7 +11,7 @@ public class Sale
     public int Id { get; set; }
     public DateTime DateTime { get; set; }
     public  int WorkerId { get; set; }
-    public IEnumerable<SaleReceiptProduct> SaleProduct { get; set; } = [];
+    public IEnumerable<SaleReceiptProduct> SaleProducts { get; set; } = [];
 
 
     public static Sale CreateOperation(int id, int workerId, IEnumerable<SaleReceiptProduct> saleProduct)
@@ -21,7 +21,7 @@ public class Sale
             Id = id,
             DateTime = DateTime.Now,
             WorkerId = workerId,
-            SaleProduct = saleProduct
+            SaleProducts = saleProduct
 
         };
     }

ProjectGasStation/ProjectGasStation/Forms/FormSupplier.cs

@@ -29,13 +29,12 @@ namespace ProjectGasStation.Forms
                     if (supplier == null)
                     {
                         throw new InvalidDataException(nameof(supplier));
-
-                        textBoxSupplierName.Text = supplier.Name;
-                        textBoxSupplierPhoneNumber.Text = supplier.PhoneNumber;
-                        textBoxSupplierAddress.Text = supplier.Address;
-                        _supplierId = value;
                     }
 
+                    textBoxSupplierName.Text = supplier.Name;
+                    textBoxSupplierPhoneNumber.Text = supplier.PhoneNumber;
+                    textBoxSupplierAddress.Text = supplier.Address;
+                    _supplierId = value;
                 }
                 catch (Exception ex)
                 {
@@ -72,6 +71,7 @@ namespace ProjectGasStation.Forms
                 {
                     _supplierRepository.CreateSupplier(CreateSupplier(0));
                 }
+                Close();
             }
             catch (Exception ex)
             {

ProjectGasStation/ProjectGasStation/Forms/FormSuppliers.resx

@@ -163,7 +163,7 @@
   <data name="buttonDel.BackgroundImage" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAA8cAAAPHCAIAAACKbawNAAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAO
-        vQAADr0BR/uQrQAA/7JJREFUeF7s/Ql4ZOt+1/euKql773OOz9nn7Km7NXX33ufYgA0hiQEn12DDg3nM
+        vAAADrwBlbxySQAA/7JJREFUeF7s/Ql4ZOt+1/euKql773OOz9nn7Km7NXX33ufYgA0hiQEn12DDg3nM
         BYNvgHuBSwiEJAQIMeMDgQuX4fgBEgMhNpAbB4whDPZzc9m71ZpnqVtSd6sndbfUk8aaJNWwqmrVXCXp
         /tb6v3vt1SWpJ01V6/19ntflpWq1TquqtNZXa7/1LmOXiIiIiIgOh1VNRERERHRYrGoiIiIiosNiVRMR
         ERERHRarmoiIiIjosFjVRERERESHxaomIiIiIjosVjURERER0WGxqomIiIiIDotVTURERER0WKxqIiIi
@@ -1468,7 +1468,7 @@
   <data name="buttonAdd.BackgroundImage" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
     <value>
         iVBORw0KGgoAAAANSUhEUgAAA80AAAPNCAIAAAA81B+iAAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAO
-        vQAADr0BR/uQrQAA/7JJREFUeF7s/fd/G9l+5wk//8f+MOGGzt0SM5X62p6d3Z2d2ZmdxzvPeHftfd17
+        vAAADrwBlbxySQAA/7JJREFUeF7s/fd/G9l+5wk//8f+MOGGzt0SM5X62p6d3Z2d2ZmdxzvPeHftfd17
         u1stiQkg1X3X9ozDBPuOfce+yel67HG6HudpBYoSJVIkAVQVSIpUoCiKyoERoSIyxedb9S3VhUBSTYoA
         AdT5vF+fV+mgCIJAhVNvHJ065/+zDgAAAAAAACg38GwAAAAAAADKDzwbAAAAAACA8gPPBgAAAAAAoPzA
         swEAAAAAACg/8GwAAAAAAADKDzwbAAAAAACA8gPPBgAAAAAAoPzAswEAAAAAACg/8GwAAAAAAADKDzwb

ProjectGasStation/ProjectGasStation/Forms/FormWorkers.cs

@@ -89,6 +89,7 @@ namespace ProjectGasStation.Forms
                 form.ShowDialog();
                 LoadList();
             }
+            
             catch (Exception ex)
             {
                 MessageBox.Show(ex.Message, "Ошибка при изменении", MessageBoxButtons.OK, MessageBoxIcon.Error);

ProjectGasStation/ProjectGasStation/Program.cs

@@ -1,6 +1,11 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
 using ProjectGasStation.Repositories;
 using ProjectGasStation.Repositories.Implementations;
+using Serilog;
 using Unity;
+using Unity.Lifetime;
+using Unity.Microsoft.Logging;
 
 namespace ProjectGasStation
 {
@@ -22,14 +27,34 @@ namespace ProjectGasStation
         {
             var container = new UnityContainer();
 
+            container.AddExtension(new LoggingExtension(CreateLoggerFactory()));
+
             container.RegisterType<IProductRepository, ProductRepository>();
             container.RegisterType<IReceiptRepository, ReceiptRepository>();
             container.RegisterType<ISaleRepository, SaleRepository>();
             container.RegisterType<ISupplierRepository, SupplierRepository>();
             container.RegisterType<IWorkerRepository, WorkerRepository>();
 
+            container.RegisterType<IConectionString, ConectionString>(new SingletonLifetimeManager());
+
+
+
 
             return container;
         }
+
+        private static LoggerFactory CreateLoggerFactory()
+        {
+            var loggerFactory = new LoggerFactory();
+            loggerFactory.AddSerilog(new LoggerConfiguration()
+                .ReadFrom.Configuration(new ConfigurationBuilder()
+                .SetBasePath(Directory.GetCurrentDirectory())
+                .AddJsonFile("appsettings.json")
+                .Build())
+                .CreateLogger());
+            return loggerFactory;
+        }
+
+
     }
 }

ProjectGasStation/ProjectGasStation/ProjectGasStation.csproj

@@ -9,7 +9,19 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Dapper" Version="2.1.35" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="9.0.0" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="Npgsql" Version="9.0.2" />
+    <PackageReference Include="Serilog" Version="4.2.0" />
+    <PackageReference Include="Serilog.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="Serilog.Settings.Configuration" Version="8.0.4" />
+    <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.9.0" />
     <PackageReference Include="Unity" Version="5.11.10" />
+    <PackageReference Include="Unity.Microsoft.Logging" Version="5.11.1" />
   </ItemGroup>
 
   <ItemGroup>
@@ -27,4 +39,10 @@
     </EmbeddedResource>
   </ItemGroup>
 
+  <ItemGroup>
+    <None Update="appsettings.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

ProjectGasStation/ProjectGasStation/Repositories/IConectionString.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectGasStation.Repositories;
+
+public interface IConectionString
+{
+    public string ConectionString { get; }
+}

ProjectGasStation/ProjectGasStation/Repositories/Implementations/ConectionString.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectGasStation.Repositories.Implementations;
+
+internal class ConectionString : IConectionString
+{
+    string IConectionString.ConectionString => "Server=localhost, 5432;Database=gas_station;Uid=postgres;Pwd=13081306";
+
+}

ProjectGasStation/ProjectGasStation/Repositories/Implementations/ProductRepository.cs

@@ -1,6 +1,11 @@
-using ProjectGasStation.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectGasStation.Entities;
 using System;
 using System.Collections.Generic;
+using System.Data.SqlClient;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -9,27 +14,127 @@ namespace ProjectGasStation.Repositories.Implementations;
 
 internal class ProductRepository : IProductRepository
 {
+    
+    public readonly IConectionString _conectionString;
+    private readonly ILogger<ProductRepository> _logger;
+
+    public ProductRepository(IConectionString conectionString, ILogger<ProductRepository> logger)
+    {
+        _conectionString = conectionString;
+        _logger = logger;
+    }
+    
     public void CreateProduct(Product product)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(product));
 
-    }
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
 
-    public void DeleteProduct(int id)
+            var queryInsert = @" INSERT  INTO Products (Name, Price, Category)
-    {
+VALUES (@Name, @Price, @Category)";
-    }
+            connection.Execute(queryInsert, product);  
-
+        }
-    public IEnumerable<Product> ReadProduct()
+        catch (Exception ex)
-    {
+        {
-        return [];
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
-    }
+            throw;
-
+        }
-    public Product ReadProductById(int id)
-    {
-        return Product.CreatEntity(0, string.Empty, 0, Entities.Enums.Category.None);
     }
 
     public void UpdateProduct(Product product)
     {
+        _logger.LogInformation("Редакитрование объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(product));
 
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryUpdate = @" UPDATE Products 
+SET
+    Name = @Name,
+    Price = @Price,
+    Category = @Category
+WHERE ID = @Id";
+            connection.Execute(queryUpdate, product);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+
+    public void DeleteProduct(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryDelete = @" DELETE FROM Products
+WHERE ID = @id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public Product ReadProductById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            
+
+            var querySelect = @" SELECT * FROM Products
+WHERE ID = @id";
+            var product = connection.QueryFirst<Product>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(product));
+
+            return product;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+
+    public IEnumerable<Product> ReadProduct()
+    {
+        _logger.LogInformation("Получение всех объектов");
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var querySelect = @" SELECT * FROM Products";
+            var products = connection.Query<Product>(querySelect);
+            _logger.LogDebug("Получены объекты: {json}", JsonConvert.SerializeObject(products));
+
+            return products;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }

ProjectGasStation/ProjectGasStation/Repositories/Implementations/ReceiptRepository.cs

@@ -1,7 +1,12 @@
-using ProjectGasStation.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectGasStation.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Net.WebSockets;
 using System.Text;
 using System.Threading.Tasks;
 
@@ -9,16 +14,86 @@ namespace ProjectGasStation.Repositories.Implementations;
 
 internal class ReceiptRepository : IReceiptRepository
 {
+    public readonly IConectionString _conectionString;
+    private readonly ILogger<ReceiptRepository> _logger;
+
+    public ReceiptRepository(IConectionString conectionString, ILogger<ReceiptRepository> logger)
+    {
+        _conectionString = conectionString;
+        _logger = logger;
+    }
+
     public void CreateReceipt(Receipt receipt)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(receipt));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+            using var transaction = connection.BeginTransaction();
+            var queryInsert = @" 
+INSERT  INTO Receipt (DateTime, SupplierID)
+VALUES (@DateTime, @SupplierID);
+SELECT MAX(Id) FROM Receipt";
+            var receiptId = connection.QueryFirst<int>(queryInsert, receipt, transaction);
+
+            var querySubInsert = @"
+INSERT INTO ReceiptProducts(ProductID, ReceiptID, Quantity)
+VALUES (@ProductID, @ReceiptID, @Quantity)";
+            foreach (var elem in receipt.ReceiptProducts)
+            {
+                connection.Execute(querySubInsert, new { elem.ProductId, receiptId, elem.Quantity }, transaction);
+            }
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void DeleteReceipt(int id)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryDelete = @" DELETE FROM Receipt
+WHERE ID = @id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 
     public IEnumerable<Receipt> ReadReceipt(DateTime? dateForm = null, DateTime? dateTo = null, int? productId = null, int? supplierId = null)
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+            var querySelect = @" SELECT * FROM Receipt";
+            var receipt = connection.Query<Receipt>(querySelect);
+            _logger.LogDebug("Получены объекты: {json}", JsonConvert.SerializeObject(receipt));
+
+            return receipt;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }

ProjectGasStation/ProjectGasStation/Repositories/Implementations/SaleRepository.cs

@@ -1,4 +1,8 @@
-using ProjectGasStation.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectGasStation.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,16 +13,87 @@ namespace ProjectGasStation.Repositories.Implementations;
 
 internal class SaleRepository : ISaleRepository
 {
+
+    public readonly IConectionString _conectionString;
+    private readonly ILogger<SaleRepository> _logger;
+
+    public SaleRepository(IConectionString conectionString, ILogger<SaleRepository> logger)
+    {
+        _conectionString = conectionString;
+        _logger = logger;
+    }
+
     public void CreateSale(Sale sale)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(sale));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+            using var transaction = connection.BeginTransaction();
+            var queryInsert = @" 
+INSERT  INTO Sale (DateTime, WorkerID)
+VALUES (@DateTime, @WorkerID);
+SELECT MAX(Id) FROM Sale";
+            var saleId = connection.QueryFirst<int>(queryInsert, sale, transaction);
+
+            var querySubInsert = @"
+INSERT INTO SaleProducts(SaleID, ProductID, Quantity)
+VALUES (@SaleID, @ProductID, @Quantity)";
+            foreach (var elem in sale.SaleProducts)
+            {
+                connection.Execute(querySubInsert, new { saleId, elem.ProductId, elem.Quantity }, transaction);
+            }
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
     }
 
     public void DeleteSale(int id)
     {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryDelete = @" DELETE FROM Sale
+WHERE ID = @id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
     }
 
     public IEnumerable<Sale> ReadSale(DateTime? dateForm = null, DateTime? dateTo = null, int? productId = null, int? workerId = null)
     {
-        return [];
+        _logger.LogInformation("Получение всех объектов");
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+            var querySelect = @" SELECT * FROM Sale";
+            var sale = connection.Query<Sale>(querySelect);
+            _logger.LogDebug("Получены объекты: {json}", JsonConvert.SerializeObject(sale));
+
+            return sale;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
 }

ProjectGasStation/ProjectGasStation/Repositories/Implementations/SupplierRepository.cs

@@ -1,6 +1,11 @@
-using ProjectGasStation.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectGasStation.Entities;
 using System;
 using System.Collections.Generic;
+using System.Data.SqlClient;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -9,26 +14,125 @@ namespace ProjectGasStation.Repositories.Implementations;
 
 public class SupplierRepository : ISupplierRepository
 {
+
+    public readonly IConectionString _conectionString;
+    private readonly ILogger<SupplierRepository> _logger;
+
+    public SupplierRepository(IConectionString conectionString, ILogger<SupplierRepository> logger)
+    {
+        _conectionString = conectionString;
+        _logger = logger;
+    }
+
     public  void CreateSupplier(Supplier supplier)
     {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(supplier));
 
-    }
+        try
-    public void DeleteSupplier(int id)
+        {
-    {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
 
-    }
+            var queryInsert = @" INSERT  INTO Suppliers (Name, PhoneNumber, Address)
-    public Supplier ReadSupplierById(int id)
+VALUES (@Name, @PhoneNumber, @Address)";
-    {
+            connection.Execute(queryInsert, supplier);
-        return Supplier.CreateEntity(0, string.Empty, string.Empty, string.Empty);
+        }
-    }
+        catch (Exception ex)
-    public IEnumerable<Supplier> ReadSupplier() 
+        {
-    {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
-        return [];
+            throw;
+        }
     }
     public void UpdateSupplier(Supplier supplier)
     {
+        _logger.LogInformation("Редакитрование объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(supplier));
 
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryUpdate = @" UPDATE Suppliers 
+SET
+    Name = @SupplierName,
+    PhoneNumber = @PhoneNumber,
+    Address = @Address
+WHERE ID = @Id";
+            connection.Execute(queryUpdate, supplier);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+
+    public void DeleteSupplier(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryDelete = @" DELETE FROM Suppliers
+WHERE ID = @id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+    public Supplier ReadSupplierById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+
+
+            var querySelect = @" SELECT * FROM Suppliers WHERE ID = @id";
+            var supplier = connection.QueryFirst<Supplier>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(supplier));
+
+            return supplier;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+    public IEnumerable<Supplier> ReadSupplier() 
+    {
+        _logger.LogInformation("Получение всех объектов");
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var querySelect = @" SELECT * FROM Suppliers";
+            var suppliers = connection.Query<Supplier>(querySelect);
+            _logger.LogDebug("Получены объекты: {json}", JsonConvert.SerializeObject(suppliers));
+
+            return suppliers;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
     }
    
 
+    
 }

ProjectGasStation/ProjectGasStation/Repositories/Implementations/WorkerRepository.cs

@@ -1,4 +1,8 @@
-using ProjectGasStation.Entities;
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using ProjectGasStation.Entities;
 using ProjectGasStation.Entities.Enums;
 using System;
 using System.Collections.Generic;
@@ -10,25 +14,130 @@ namespace ProjectGasStation.Repositories.Implementations;
 
 public class WorkerRepository : IWorkerRepository
 {
+
+    public readonly IConectionString _conectionString;
+    private readonly ILogger<WorkerRepository> _logger;
+
+    public WorkerRepository(IConectionString conectionString, ILogger<WorkerRepository> logger)
+    {
+        _conectionString = conectionString;
+        _logger = logger;
+    }
+
     public void CreateWorker(Worker worker)
     {
-    }
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(worker));
 
-    public void DeleteWorker(int id)
+        try
-    {
+        {
-    }
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
 
-    public IEnumerable<Worker> ReadWorker()
+            var queryInsert = @" INSERT  INTO Workers (Name, JobTitle)
-    {
+VALUES (@Name, @JobTitle)";
-        return [];
+            connection.Execute(queryInsert, worker);
-    }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
 
-    public Worker ReadWorkerById(int id)
-    {
-        return Worker.CreateEntity(0, string.Empty, JobTitle.None);
     }
 
     public void UpdateWorker(Worker worker)
     {
+        _logger.LogInformation("Редакитрование объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(worker));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryUpdate = @" UPDATE Workers 
+SET
+    Name = @Name,
+    JobTitle = @JobTitle
+WHERE ID = @Id";
+            connection.Execute(queryUpdate, worker);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
     }
+
+
+    public void DeleteWorker(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var queryDelete = @" DELETE FROM Workers
+WHERE ID = @id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public Worker ReadWorkerById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+
+
+            var querySelect = @" SELECT * FROM Workers WHERE ID = @id";
+            var worker = connection.QueryFirst<Worker>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}", JsonConvert.SerializeObject(worker));
+
+            return worker;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Worker> ReadWorker()
+    {
+        _logger.LogInformation("Получение всех объектов");
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_conectionString.ConectionString);
+            connection.Open();
+
+            var querySelect = @" SELECT * FROM Workers";
+            var workers = connection.Query<Worker>(querySelect);
+            _logger.LogDebug("Получены объекты: {json}", JsonConvert.SerializeObject(workers));
+
+            return workers;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
+
+   
+
+    
 }

ProjectGasStation/ProjectGasStation/appsettings.json

@@ -0,0 +1,15 @@
+{
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": "Debug",
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Logs/gs_log.txt",
+          "rollingInterval": "Day"
+        }
+      }
+    ]
+  }
+}