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BusinessLogic/BusinessLogic/PurchaseLogic.cs

@@ -6,6 +6,7 @@ using Contracts.SearchModels;
 using Contracts.StorageContracts;
 using Contracts.ViewModels;
 using DatabaseImplement.Implements;
+using DatabaseImplement.Migrations;
 using DatabaseImplement.Models;
 using DataModels.Enums;
 using DataModels.Models;
@@ -21,13 +22,16 @@ namespace BusinessLogic.BusinessLogic
 	public class PurchaseLogic : IPurchaseLogic
 	{
 		private readonly IPurchaseStorage _purchaseStorage;
-		private readonly ILogger _logger;
+        private readonly IProductStorage _productStorage;
+        private readonly ILogger _logger;
 
-		public PurchaseLogic(IPurchaseStorage purchaseStorage, ILogger<PurchaseLogic> logger)
+		public PurchaseLogic(IPurchaseStorage purchaseStorage, IProductStorage productStorage, ILogger<PurchaseLogic> logger)
 		{
 			_purchaseStorage = purchaseStorage;
 			_logger = logger;
-		}
+            _productStorage = productStorage;
+
+        }
 
 		public PurchaseViewModel Create(PurchaseBindingModel model)
 		{
@@ -76,7 +80,7 @@ namespace BusinessLogic.BusinessLogic
 		public List<PurchaseViewModel> ReadElements(PurchaseSearchModel? model)
 		{
 			_logger.LogInformation("ReadList. Id: {Id}", model?.Id);
-			var purchase_list = _purchaseStorage.GetFullList(model);
+            var purchase_list = model == null ? _purchaseStorage.GetFullList(model) : _purchaseStorage.GetFilteredList(model);
 			if (purchase_list is null || purchase_list.Count() == 0)
 			{
 				_logger.LogWarning("ReadList return null list");
@@ -99,5 +103,14 @@ namespace BusinessLogic.BusinessLogic
 			}
 			return purchase;
 		}
+        public PurchaseViewModel AddProduct(PurchaseSearchModel purchase_model, ProductSearchModel product_model, int count)
+		{	
+            _purchaseStorage.AddProducts(purchase_model, product_model, count);
+			return _purchaseStorage.GetElement(purchase_model);
+        }
+		public Dictionary<Guid, int> GetProducts(PurchaseSearchModel model)
+		{
+            return _purchaseStorage.GetProducts(model);	
+        }
 	}
 }

Contracts/BindingModels/PurchaseBindingModel.cs

@@ -14,6 +14,7 @@ namespace Contracts.BindingModels
 		public DateTime DatePurchase { get; set; }
 		public Guid UserId { get; set; }
 		public PurchaseStatus Status { get; set; }
-		public Dictionary<Guid, (IProduct, int)> PurchaseProducts { get; set; } = new();
+		public Dictionary<Guid, (IProduct, int)>? PurchaseProducts { get; set; } = new();
+		public double Cost { get; set; }
 	}
 }

Contracts/BusinessLogicContracts/IPurchaseLogic.cs

@@ -20,5 +20,7 @@ namespace Contracts.BusinessLogicContracts
 		List<PurchaseViewModel> ReadElements(PurchaseSearchModel? model);
 
 		PurchaseViewModel Delete(PurchaseSearchModel model);
-	}
+		PurchaseViewModel AddProduct(PurchaseSearchModel purchase, ProductSearchModel product, int count);
+		Dictionary<Guid, int> GetProducts(PurchaseSearchModel model);
+    }
 }

Contracts/SearchModels/PurchaseSearchModel.cs

@@ -13,8 +13,8 @@ namespace Contracts.SearchModels
 		public Guid? Id { get; set; }
 		public DateTime? DateFrom { get; set; }
 		public DateTime? DateTo { get; set; }
-		public double? PriceFrom { get; set; }
-		public double? PriceTo { get; set; }
+		public double? CostFrom { get; set; }
+		public double? CostTo { get; set; }
 		public PurchaseStatus? Status { get; set; }
 	}
 }

Contracts/StorageContracts/IPurchaseStorage.cs

@@ -21,5 +21,7 @@ namespace Contracts.StorageContracts
         PurchaseViewModel? Update(PurchaseBindingModel model);
 
         PurchaseViewModel? Delete(PurchaseSearchModel model);
-	}
+        PurchaseViewModel? AddProducts(PurchaseSearchModel purchaseModel, ProductSearchModel productModel, int count);
+        Dictionary<Guid, int> GetProducts(PurchaseSearchModel purchaseModel);
+    }
 }

Contracts/ViewModels/PurchaseViewModel.cs

@@ -14,7 +14,7 @@ namespace Contracts.ViewModels
 		public DateTime DatePurchase { get; set; }
 		public required Guid UserId { get; set; }
 		public PurchaseStatus Status { get; set; }
-		public Dictionary<Guid, (IProduct, int)> PurchaseProducts { get; set; } = new();
-
+		public Dictionary<Guid, (IProduct, int)>? PurchaseProducts { get; set; } = new();
+		public double Cost { get; set; }
     }
 }

DataModels/Models/IPurchase.cs

@@ -11,5 +11,6 @@ namespace DataModels.Models
 	{
 		DateTime DatePurchase { get; }
 		PurchaseStatus Status { get; }
+		double Cost { get; }
 	}
 }

DatabaseImplement/Implements/PurchaseStorage.cs

@@ -53,6 +53,59 @@ namespace DatabaseImplement.Implements
         public List<PurchaseViewModel> GetFilteredList(PurchaseSearchModel? model)
         {
             using var context = new Database();
+            if (!model.CostFrom.HasValue && !model.CostTo.HasValue && !model.DateTo.HasValue && !model.DateFrom.HasValue && !model.Status.HasValue)
+            {
+                return new();
+            }
+
+            if (model.CostFrom.HasValue && model.CostTo.HasValue)
+            {
+                return context.Purchases
+                .Where(x => x.Cost <= model.CostTo && x.Cost >= model.CostFrom)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+            }
+            if (model.CostFrom.HasValue)
+            {
+                return context.Purchases
+                .Where(x => x.Cost >= model.CostFrom)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+            }
+            if (model.CostTo.HasValue)
+            {
+                return context.Purchases
+                .Where(x => x.Cost <= model.CostTo)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+            }
+            if (model.DateFrom.HasValue && model.DateTo.HasValue)
+            {
+                return context.Purchases
+                .Where(x => x.DatePurchase <= model.DateTo && x.DatePurchase >= model.DateFrom)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+            }
+            if (model.DateFrom.HasValue)
+            {
+                return context.Purchases
+                .Where(x => x.DatePurchase >= model.DateFrom)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+            }
+            if (model.DateTo.HasValue)
+            {
+                return context.Purchases
+                .Where(x => x.DatePurchase <= model.DateTo)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+            }
             return context.Purchases
             .Include(x => x.Products)
             .ThenInclude(x => x.Product)
@@ -96,5 +149,64 @@ namespace DatabaseImplement.Implements
                 throw;
             }
         }
-	}
+        public PurchaseViewModel? AddProducts(PurchaseSearchModel purchaseModel, ProductSearchModel productModel, int count) 
+        {         
+            using var context = new Database();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var purchase = context.Purchases.FirstOrDefault(rec =>
+                rec.Id == purchaseModel.Id);
+
+                var product = context.Products.FirstOrDefault(rec =>
+                rec.Id == productModel.Id);
+
+                if (purchase == null)
+                    return null;
+
+                if (product == null)
+                    return null;
+
+                if (count <= 0)
+                    return null;
+
+                context.PurchaseProducts.Add(new PurchaseProducts
+                {
+                    Purchase = purchase,
+                    Product = product,
+                    Count = count
+                });
+                context.SaveChanges();
+                return purchase.GetViewModel;
+            }
+            catch { transaction.Rollback(); throw; }
+            
+        }
+
+        public Dictionary<Guid, int> GetProducts(PurchaseSearchModel model)
+        {
+            Dictionary<Guid, int> productsDict = new();
+            using var context = new Database();
+
+            var purchase = context.Purchases.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+
+            if (purchase == null)
+            {
+                return null;
+            }
+
+            var purchaseProducts = context.PurchaseProducts
+               .Where(x => x.PurchaseId == model.Id)
+               .ToList();
+
+            foreach (var purchaseProduct in purchaseProducts)
+            {
+                productsDict.Add(purchaseProduct.ProductId, purchaseProduct.Count);
+            }
+
+            return productsDict;
+        }
+
+    }
 }

DatabaseImplement/Migrations/20240625215017_purchase.Designer.cs

@@ -0,0 +1,495 @@
+// <auto-generated />
+using System;
+using DatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20240625215017_purchase")]
+    partial class purchase
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.6")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DatabaseImplement.Models.MediaFile", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<byte[]>("Image")
+                        .IsRequired()
+                        .HasColumnType("bytea");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.ToTable("MediaFiles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Amount")
+                        .HasColumnType("integer");
+
+                    b.Property<bool>("IsBeingSold")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<double>("Rate")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.Property<DateTime>("DatePurchase")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.PurchaseProducts", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("PurchaseId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("PurchaseId");
+
+                    b.ToTable("PurchaseProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Role", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Roles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Sell", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DateSell")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<Guid?>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Sells");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SellProducts", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SellId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SellId");
+
+                    b.ToTable("SellProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Deals")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Suppliers");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("SupplierProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateArriving")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<DateTime?>("DateComplete")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("Supplies");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyDoc", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("SupplyId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("SupplyDocs");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplyId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplyId");
+
+                    b.ToTable("SupplyProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Birthday")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("OnlyImportantMails")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RoleId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("SecondName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.MediaFile", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.PurchaseProducts", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany("PurchaseProducts")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Purchase", "Purchase")
+                        .WithMany("Products")
+                        .HasForeignKey("PurchaseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Purchase");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Sell", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SellProducts", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany("SellProducts")
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Sell", "Sell")
+                        .WithMany("Products")
+                        .HasForeignKey("SellId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Sell");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany()
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supply", "Supply")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supply");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.User", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Role", "Role")
+                        .WithMany()
+                        .HasForeignKey("RoleId");
+
+                    b.Navigation("Role");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Navigation("PurchaseProducts");
+
+                    b.Navigation("SellProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Sell", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Navigation("Products");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

DatabaseImplement/Migrations/20240625215017_purchase.cs

@@ -0,0 +1,130 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class purchase : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "Birthday",
+                table: "Users",
+                type: "timestamp without time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateComplete",
+                table: "Supplies",
+                type: "timestamp without time zone",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateArriving",
+                table: "Supplies",
+                type: "timestamp without time zone",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "Date",
+                table: "Supplies",
+                type: "timestamp without time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateSell",
+                table: "Sells",
+                type: "timestamp without time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DatePurchase",
+                table: "Purchases",
+                type: "timestamp without time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone");
+
+            migrationBuilder.AddColumn<double>(
+                name: "Cost",
+                table: "Purchases",
+                type: "double precision",
+                nullable: false,
+                defaultValue: 0.0);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Cost",
+                table: "Purchases");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "Birthday",
+                table: "Users",
+                type: "timestamp with time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp without time zone");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateComplete",
+                table: "Supplies",
+                type: "timestamp with time zone",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp without time zone",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateArriving",
+                table: "Supplies",
+                type: "timestamp with time zone",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp without time zone",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "Date",
+                table: "Supplies",
+                type: "timestamp with time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp without time zone");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateSell",
+                table: "Sells",
+                type: "timestamp with time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp without time zone");
+
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DatePurchase",
+                table: "Purchases",
+                type: "timestamp with time zone",
+                nullable: false,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp without time zone");
+        }
+    }
+}

DatabaseImplement/Migrations/DatabaseModelSnapshot.cs

@@ -75,8 +75,11 @@ namespace DatabaseImplement.Migrations
                         .ValueGeneratedOnAdd()
                         .HasColumnType("uuid");
 
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
                     b.Property<DateTime>("DatePurchase")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp without time zone");
 
                     b.Property<int>("Status")
                         .HasColumnType("integer");
@@ -137,7 +140,7 @@ namespace DatabaseImplement.Migrations
                         .HasColumnType("uuid");
 
                     b.Property<DateTime>("DateSell")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp without time zone");
 
                     b.Property<Guid?>("UserId")
                         .HasColumnType("uuid");
@@ -222,13 +225,13 @@ namespace DatabaseImplement.Migrations
                         .HasColumnType("uuid");
 
                     b.Property<DateTime>("Date")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp without time zone");
 
                     b.Property<DateTime?>("DateArriving")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp without time zone");
 
                     b.Property<DateTime?>("DateComplete")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp without time zone");
 
                     b.Property<string>("Name")
                         .IsRequired()
@@ -299,7 +302,7 @@ namespace DatabaseImplement.Migrations
                         .HasColumnType("uuid");
 
                     b.Property<DateTime>("Birthday")
-                        .HasColumnType("timestamp with time zone");
+                        .HasColumnType("timestamp without time zone");
 
                     b.Property<string>("Email")
                         .IsRequired()

DatabaseImplement/Models/Purchase.cs

@@ -23,6 +23,7 @@ namespace DatabaseImplement.Models
 		public DateTime DatePurchase { get; set; }
         [Required]
 		public Guid UserId { get; set; }
+        public double Cost { get; set; }
         [Required]
 		public PurchaseStatus Status { get; private set; } = PurchaseStatus.Unknown;
         private Dictionary<Guid, (IProduct, int)>? _purchaseProducts = null;
@@ -59,7 +60,8 @@ namespace DatabaseImplement.Models
 			DatePurchase = DatePurchase,
 			UserId = UserId,
 			PurchaseProducts = PurchaseProducts,
-			Status = Status
+			Status = Status,
+            Cost = Cost
 		};
 
         public PurchaseViewModel GetViewModel => new()
@@ -68,7 +70,8 @@ namespace DatabaseImplement.Models
             DatePurchase = DatePurchase,
             UserId = UserId,
             PurchaseProducts = PurchaseProducts,
-            Status = Status
+            Status = Status,
+            Cost = Cost
         };
 
         public static Purchase ToPurchaseFromView(PurchaseViewModel model, Purchase purchase) => new()
@@ -77,7 +80,8 @@ namespace DatabaseImplement.Models
 			DatePurchase = model.DatePurchase,
             UserId = model.UserId,
             PurchaseProducts = model.PurchaseProducts,
-            Status = model.Status
+            Status = model.Status,
+            Cost = model.Cost
         };
 
 		public static Purchase ToPurchaseFromBinding(PurchaseBindingModel model, Purchase purchase) => new()
@@ -86,7 +90,8 @@ namespace DatabaseImplement.Models
 			DatePurchase = model.DatePurchase,
             UserId = model.UserId,
             PurchaseProducts = model.PurchaseProducts,
-            Status = model.Status
+            Status = model.Status,
+            Cost = model.Cost
         };
 
 		public void Update(PurchaseBindingModel model)
@@ -100,7 +105,9 @@ namespace DatabaseImplement.Models
             UserId = model.UserId;
             PurchaseProducts = model.PurchaseProducts;
             Status = model.Status;
-		}
+            Cost = model.Cost;
+
+        }
         public void UpdateProducts(Database context, PurchaseBindingModel model)
         {
             var purchaseProducts = context.PurchaseProducts.Where(rec =>

RestAPI/Controllers/MediaFileController.cs

@@ -15,7 +15,7 @@ namespace RestAPI.Controllers
         private readonly IMediaFileLogic _mediaFileLogic;
         private readonly IProductLogic _productLogic;
         private readonly ILogger _logger;
-        public MediaFileController(ILogger<MediaFileLogic> logger, IMediaFileLogic mediaFileLogic, IProductLogic productLogic)
+        public MediaFileController(ILogger<MediaFileController> logger, IMediaFileLogic mediaFileLogic, IProductLogic productLogic)
         {
             _logger = logger;
             _mediaFileLogic = mediaFileLogic;

RestAPI/Controllers/ProductController.cs

@@ -44,6 +44,20 @@ namespace RestAPI.Controllers
             }
         }
 
+        [HttpGet]
+        public ProductViewModel GetProduct(Guid id)
+        {
+            try
+            {
+                return _product.ReadElement(new ProductSearchModel() {Id = id});
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка получения продукта");
+                throw;
+            }
+        }
+
         [HttpPatch]
         public IResult Update([FromBody] ProductBindingModel model)
         {

RestAPI/Controllers/PurchaseController.cs

@@ -1,83 +1,152 @@
-using Microsoft.AspNetCore.Http;
+using BusinessLogic.BusinessLogic;
+using Contracts.BindingModels;
+using Contracts.BusinessLogicContracts;
+using Contracts.Exceptions;
+using Contracts.SearchModels;
+using Contracts.ViewModels;
+using DatabaseImplement.Models;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 
 namespace RestAPI.Controllers
 {
+    [Route("[controller]/[action]")]
+    [ApiController]
     public class PurchaseController : Controller
     {
-        // GET: PurchaseController
-        public ActionResult Index()
-        {
-            return View();
-        }
+        private readonly ILogger _logger;
+        private readonly IPurchaseLogic _purchaseLogic;
 
-        // GET: PurchaseController/Details/5
-        public ActionResult Details(int id)
+        public PurchaseController(ILogger<PurchaseController> logger, IPurchaseLogic purchaseLogic)
         {
-            return View();
+            _logger = logger;
+            _purchaseLogic = purchaseLogic;
         }
-
-        // GET: PurchaseController/Create
-        public ActionResult Create()
-        {
-            return View();
-        }
-
-        // POST: PurchaseController/Create
-        [HttpPost]
-        [ValidateAntiForgeryToken]
-        public ActionResult Create(IFormCollection collection)
+        [HttpGet]
+        public List<PurchaseViewModel>? GetList(double? costfrom, double? costto, DateTime? datefrom, DateTime? dateto)
         {
             try
             {
-                return RedirectToAction(nameof(Index));
+                if (costfrom == null && costto == null && datefrom == null && dateto == null)
+                    return _purchaseLogic.ReadElements(null);
+
+                else
+                    return _purchaseLogic.ReadElements(new PurchaseSearchModel()
+                    {
+                        CostFrom = costfrom,
+                        CostTo = costto,
+                        DateFrom = datefrom,
+                        DateTo = dateto
+                    });
             }
-            catch
+            catch (Exception ex)
             {
-                return View();
+                _logger.LogError(ex, "Ошибка получения списка продуктов");
+                throw;
             }
         }
 
-        // GET: PurchaseController/Edit/5
-        public ActionResult Edit(int id)
-        {
-            return View();
-        }
-
-        // POST: PurchaseController/Edit/5
-        [HttpPost]
-        [ValidateAntiForgeryToken]
-        public ActionResult Edit(int id, IFormCollection collection)
+        [HttpGet]
+        public PurchaseViewModel Get(Guid id)
         {
             try
             {
-                return RedirectToAction(nameof(Index));
+                return _purchaseLogic.ReadElement(new PurchaseSearchModel() { Id = id });
             }
-            catch
+            catch (Exception ex)
             {
-                return View();
+                _logger.LogError(ex, "Ошибка получения продукта");
+                throw;
             }
         }
-
-        // GET: PurchaseController/Delete/5
-        public ActionResult Delete(int id)
-        {
-            return View();
-        }
-
-        // POST: PurchaseController/Delete/5
         [HttpPost]
-        [ValidateAntiForgeryToken]
-        public ActionResult Delete(int id, IFormCollection collection)
+        public PurchaseViewModel Create(Guid UserId)
         {
             try
             {
-                return RedirectToAction(nameof(Index));
+                var purchase = _purchaseLogic.Create(new PurchaseBindingModel()
+                {
+                    Cost = 0,
+                    DatePurchase = DateTime.Now,
+                    UserId = UserId
+                });
+
+                return new PurchaseViewModel()
+                {
+                    DatePurchase = purchase.DatePurchase,
+                    UserId = purchase.UserId,
+                    Cost = purchase.Cost,
+                };
             }
-            catch
+            catch (Exception ex)
             {
-                return View();
+                _logger.LogError(ex, "Error update purchase");
+                return null;
             }
         }
+        
+        [HttpPatch]
+        public PurchaseViewModel Update([FromBody] PurchaseBindingModel model)
+        {
+            try
+            {
+                var res = _purchaseLogic.Update(model);
+                return new PurchaseViewModel()
+                { 
+                    Id = res.Id,
+                    Cost = res.Cost,
+                    DatePurchase = res.DatePurchase,
+                    PurchaseProducts = res.PurchaseProducts,
+                    UserId = res.UserId,
+                };
+            }
+
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error update purchase");
+                return null;
+            }
+        }
+        [HttpPatch]
+        public PurchaseViewModel AddProducts(Guid purchaseId, Guid productId, int count)
+        {
+            try
+            {
+                var purchase = _purchaseLogic.AddProduct(
+                new PurchaseSearchModel()
+                {
+                    Id = purchaseId
+                },
+                new ProductSearchModel()
+                {
+                    Id = productId
+                },
+                count);
+
+                return new PurchaseViewModel()
+                {
+                    Id = purchase.Id,
+                    Cost = purchase.Cost,
+                    DatePurchase = purchase.DatePurchase,
+                    PurchaseProducts = purchase.PurchaseProducts,
+                    UserId = purchase.UserId,
+                };
+            }
+
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error update purchase");
+                return null;
+            }
+        }
+        [HttpGet]
+        public Dictionary<Guid, int> GetProducts(Guid productId)
+        {
+            return _purchaseLogic.GetProducts(new PurchaseSearchModel
+            {
+                Id = productId,
+            });
+        }
     }
 }

WebApp/Pages/Cart.cshtml

@@ -1,4 +1,56 @@
 @page
 @model WebApp.Pages.CartModel
 @{
-}
+    ViewData["Title"] = "Cart";
+}
+<div class="container my-5">
+    <h1>Корзина</h1>
+
+    @* @if (Model.Amount == 0)
+    {
+        <p>Ваша корзина пуста.</p>
+    } *@
+    else
+    {
+        <table class="table">
+            <thead>
+                <tr>
+                    <th>Товар</th>
+                    <th>Цена</th>
+                    <th>Количество</th>
+                    <th>Итого</th>
+                    <th></th>
+                </tr>
+            </thead>
+            <tbody>
+                @* @foreach (var item in Model.CartItems)
+                {
+                    <tr>
+                        <td>
+                            <div class="d-flex align-items-center">
+                                <img src="data:image/png;base64,@Convert.ToBase64String(Model.GetMediaByProduct(item.Product))" class="img-fluid me-3" style="max-height: 50px;" alt="@item.Product.Name">
+                                <a asp-page="ProductDetails" asp-route-id="@item.Product.Id">@item.Product.Name</a>
+                            </div>
+                        </td>
+                        <td>@item.Product.Price.ToString("C")</td>
+                        <td>
+                            <input type="number" class="form-control" value="@item.Quantity" min="1" max="100" onchange="updateCartItem('@item.Product.Id', this.value)">
+                        </td>
+                        <td>@((item.Product.Price * item.Quantity).ToString("C"))</td>
+                        <td>
+                            <button class="btn btn-danger" onclick="removeFromCart('@item.Product.Id')">Удалить</button>
+                        </td>
+                    </tr>
+                } *@
+            </tbody>
+        </table>
+
+        <div class="d-flex justify-content-end">
+            @* <h3>Итого: @Model.TotalPrice.ToString("C")</h3> *@
+        </div>
+
+        <div class="d-flex justify-content-end">
+            <a asp-page="Checkout" class="btn btn-primary">Оформить заказ</a>
+        </div>
+    }
+</div>

WebApp/Pages/Cart.cshtml.cs

@@ -1,13 +1,35 @@
+using Contracts.ViewModels;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
+using System.Diagnostics.Eventing.Reader;
+using WebApp.Helpers;
 
 namespace WebApp.Pages
 {
+    [Authorize(Roles = Roles.User)]
     public class CartModel : PageModel
     {
-        public void OnGet()
+        public PurchaseViewModel purchaseModel = null;
+        public Dictionary<Guid, int> Products { get; set; }
+        public void OnGet(Guid id, int count)
+        {
+            if (purchaseModel == null)
+            {
+                purchaseModel = APIClient.GetRequest<PurchaseViewModel>($"Purchase/Create/{this.GetUserId()}");
+
+                APIClient.GetRequest<PurchaseViewModel>($"Purchase/AddProducts?purchaseId={purchaseModel.Id}?productId={id}?count={count}");
+            }
+            purchaseModel = APIClient.GetRequest<PurchaseViewModel>($"Purchase/Get/");
+
+            Products = APIClient.GetRequest<Dictionary<Guid, int>>($"Purchase/GetProducts?id={purchaseModel.Id}");
+        }
+        public IActionResult OnPostAsync()
         {
 
+            
+
+            return RedirectToAction("");
         }
     }
-}
+}

WebApp/Pages/Index.cshtml

@@ -7,7 +7,7 @@
 <!-- Шапка -->
 <nav class="navbar navbar-expand-lg navbar-light bg-light">
     <div class="container">
-        <a class="navbar-brand" href="#">Catalog</a>
+        <a asp-page="Index" class="navbar-brand">Catalog</a>
         <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
             <span class="navbar-toggler-icon"></span>
         </button>
@@ -31,12 +31,12 @@
             </form>
             <div class="form-group ms-3">
                 <div class="d-flex align-items-center">
-                    <input type="range" step="1000" min="0" max="10000" value="" class="custom-range me-2" id="priceFrom">
-                    <label for="priceFrom">От: <span id="priceLabelFrom">50 000</span> руб.</label>
+                    <input type="range" step="1" min="0" max="100" value="" class="custom-range me-2" id="priceFrom">
+                    <label asp-for="ProductsModel" s for="pricefrom">От: <span id="priceLabelFrom"></span> руб.</label>
                 </div>
                 <div class="d-flex align-items-center">
-                    <input type="range" step="1000" min="0" max="100000" value="" class="custom-range me-2" id="priceTo">
-                    <label for="priceTo">До: <span id="priceLabelTo">50 000</span> руб.</label>
+                    <input type="range" step="1" min="0" max="100" value="" class="custom-range me-2" id="priceTo">
+                    <label asp-for="ProductsModel" for="priceto">До: <span id="priceLabelTo"></span> руб.</label>
                 </div>
             </div>
         </div>
@@ -54,8 +54,31 @@
                     <div class="card-body">
                         <h5 class="card-title">@weapon.Name</h5>
                         <p class="card-text">Цена: @weapon.Price руб.</p>
-                        <a href="#" class="btn btn-primary">В корзину</a>
-                        <a href="#" class="btn btn-secondary">Просмотр</a>
+
+                        <div class="star-rating">
+                            @for (int i = 0; i < (int)Math.Round(@weapon.Rate); i++)
+                            {
+                                <span class="filled-star">&#9733;</span>
+                            }
+                            @for (int i = 0; i < 5 - (int)Math.Round(@weapon.Rate); i++)
+                            {
+                                <span class="empty-star">&#9733;</span>
+                            }
+                            (@weapon.Rate)
+                        </div>
+
+                        @if (User.Identity.IsAuthenticated)
+                        {
+                            <a asp-page="Cart" asp-route-id="@weapon.Id" asp-route-count=1 class="btn btn-primary">To cart</a>
+                        }
+                        else
+                        {
+                            <a asp-page="Login" asp-route-count=1 class="btn btn-primary">To cart</a>
+                        }
+                        <a asp-page="ProductPage" asp-route-id="@weapon.Id" class="btn btn-secondary">View Product</a>                       
+                        
+
+                            
                     </div>
                 </div>
             </div>

WebApp/Pages/Index.cshtml.cs

@@ -25,7 +25,7 @@ namespace WebApp.Pages
                 request += $"?priceto={priceto}";
 
             ProductsModel = APIClient.GetRequest<List<ProductViewModel>>(request);
-            MediaByProductsModel = APIClient.GetRequest<Dictionary<Guid, List<MediaFileViewModel>>>($"MediaFile/GetByProducts?");
+            MediaByProductsModel = APIClient.GetRequest<Dictionary<Guid, List<MediaFileViewModel>>>($"MediaFile/GetByProducts");
         }
         public byte[] GetMediaByProduct(ProductViewModel productModel)
         {

WebApp/Pages/ProductPage.cshtml

@@ -0,0 +1,69 @@
+@page
+@model WebApp.Pages.ProductPageModel
+@{
+	ViewData["Title"] = "Product Page";
+}
+<!-- Шапка -->
+<nav class="navbar navbar-expand-lg navbar-light bg-light">
+    <div class="container">
+        <a asp-page="Index" class="navbar-brand">Catalog</a>
+        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
+            <span class="navbar-toggler-icon"></span>
+        </button>
+    </div>
+</nav>
+
+<div class="container my-5">
+    <div class="row">
+        <div class="col-md-6">
+            <img src="data:image/png;base64,@Convert.ToBase64String(Model.GetMediaByProduct(Model.productModel))" class="img-fluid" alt="@Model.productModel.Name">
+        </div>
+        <div class="col-md-6">
+            <h1>@Model.productModel.Name</h1>
+            <div class="star-rating">
+                @for (int i = 0; i < (int)Math.Round(@Model.productModel.Rate); i++)
+                {
+                    <span class="filled-star">&#9733;</span>
+                }
+                @for (int i = 0; i < 5 - (int)Math.Round(@Model.productModel.Rate); i++)
+                {
+                    <span class="empty-star">&#9733;</span>
+                }
+                (@Model.productModel.Rate)
+            </div>
+            <p class="lead">Цена: @Model.productModel.Price руб.</p>
+            <p>Количество товара на складе: @Model.productModel.Amount</p>
+            
+            @if (User.Identity.IsAuthenticated)
+            {
+                <form method="post">
+                    <div class="d-flex align-items-center mb-3">
+                        <input type="hidden" name="id" value="@Model.productModel.Id" />
+                        <input type="number" name="count" min="1" max="@Model.productModel.Amount" value="1" class="form-control w-auto" />
+                        <button type="submit" class="btn btn-primary me-2">В корзину</button>
+                    </div>
+                </form>
+                
+            }
+            else
+            {
+                <div class="d-flex align-items-center mb-3">
+                    <label for="quantity" class="me-2">Количество:</label>
+                    <input type="number" id="quantity" name="quantity" min="1" max="@Model.productModel.Amount" value="1" class="form-control w-auto">
+                </div>
+                <a asp-page="Login" class="btn btn-primary me-2">
+                    В корзину
+                </a>
+
+            }
+            <button class="btn btn-secondary">Купить сейчас</button>
+            
+        </div>
+    </div>
+    <div class="row mt-5">
+        <div class="col">
+            <h2>Описание</h2>
+            <p>@Model.productModel.Amount</p>
+        </div>
+    </div>
+</div>

WebApp/Pages/ProductPage.cshtml.cs

@@ -0,0 +1,43 @@
+using Contracts.BindingModels;
+using Contracts.ViewModels;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace WebApp.Pages
+{
+    public class ProductPageModel : PageModel
+    {
+        public PurchaseViewModel purchaseModel { get; set; }
+        public ProductViewModel productModel { get; set; }
+        public MediaFileViewModel mediaFileModel { get; set; }
+        public Dictionary<Guid, List<MediaFileViewModel>> MediaByProductsModel { get; set; }
+        public int Amount { get; set; } // Ñâîéñòâî äëÿ õðàíåíèÿ êîëè÷åñòâà òîâàðà
+        public void OnGet(Guid id)
+        {
+            productModel = APIClient.GetRequest<ProductViewModel>($"Product/GetProduct?id={id}");
+        }
+        public byte[] GetMediaByProduct(ProductViewModel productModel)
+        {
+            MediaByProductsModel = APIClient.GetRequest<Dictionary<Guid, List<MediaFileViewModel>>>($"MediaFile/GetByProducts");
+            MediaByProductsModel.TryGetValue(productModel.Id, out List<MediaFileViewModel> models);
+            return models[0].Image;
+        }
+        public IActionResult OnPostAsync(Guid id, int count)
+        {
+            Amount = count;
+            if (purchaseModel == null)
+            {
+                var model = new PurchaseBindingModel()
+                {
+                    Cost = 0,
+                    DatePurchase = DateTime.Now,
+                    Status = 0,
+                    UserId = new Guid(this.GetUserId())
+                };
+                //purchaseModel = APIClient.PostRequest<PurchaseBindingModel>($"Purchase/Create", model);               
+            }
+            APIClient.GetRequest<PurchaseViewModel>($"Purchase/AddProducts?purchaseId={purchaseModel.Id}?productId={id}?count={count}");
+            return RedirectToPage("Cart");
+        }
+    }
+}

WebApp/wwwroot/css/site.css

@@ -1,4 +1,4 @@
-html {
+html {
   font-size: 14px;
 }
 
@@ -25,4 +25,17 @@ body {
     height: 300px;
     width: 100%;
     object-fit: cover;
+}
+
+.star-rating span {
+    font-size: 20px;
+    margin-right: 10px;
+}
+
+.filled-star {
+    color: gold;
+}
+
+.empty-star {
+    color: gray;
 }