вроде готовая сложная третья лаба для показа, но напрашивается еще добавить норм отображение ошибки о количестве суши в магазинах

SushiBar/Program.cs

@@ -5,7 +5,7 @@ using SushiBarBusinessLogic;
 using SushiBarBusinessLogic.BusinessLogic;
 using SushiBarContracts.BusinessLogicsContracts;
 using SushiBarContracts.StoragesContracts;
-using SushiBarFileImplement.Implements;
+using SushiBarDatabaseImplement.Implements;
 using SushiBarView;
 using SushiBarView.Shops;
 

SushiBarDatabaseImplement/Implements/ShopStorage.cs

@@ -1,4 +1,10 @@
-using SushiBarContracts.StoragesContracts;
+using Microsoft.EntityFrameworkCore;
+using SushiBarContracts.BindingModel;
+using SushiBarContracts.SearchModel;
+using SushiBarContracts.StoragesContracts;
+using SushiBarContracts.ViewModels;
+using SushiBarDatabaseImplement.Models;
+using SushiBarDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,5 +15,246 @@ namespace SushiBarDatabaseImplement.Implements
 {
     public class ShopStorage : IShopStorage
     {
+
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new SushiBarDatabase();
+            return context.Shops
+                .Include(x => x.Sushis)
+                .ThenInclude(x => x.Sushi)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        /// <summary>
+        /// Получение фильтрованного списка
+        /// </summary>
+        /// <param name="model"></param>
+        /// <returns></returns>
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+
+            using var context = new SushiBarDatabase();
+            return context.Shops
+                .Include(x => x.Sushis)
+                .ThenInclude(x => x.Sushi)
+                .Where(x => x.ShopName.Contains(model.ShopName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        /// <summary>
+        /// Получение элемента
+        /// </summary>
+        /// <param name="model"></param>
+        /// <returns></returns>
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new SushiBarDatabase();
+            return context.Shops
+                .Include(x => x.Sushis)
+                .ThenInclude(x => x.Sushi)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) &&
+                    x.ShopName == model.ShopName) ||
+                    (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        /// <summary>
+        /// Добавление элемента
+        /// </summary>
+        /// <param name="model"></param>
+        /// <returns></returns>
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            var newShop = Shop.Create(context, model);
+            if (newShop == null)
+            {
+                return null;
+            }
+
+            context.Shops.Add(newShop);
+            context.SaveChanges();
+            return newShop.GetViewModel;
+        }
+
+        /// <summary>
+        /// Редактирование элемента
+        /// </summary>
+        /// <param name="model"></param>
+        /// <returns></returns>
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var shop = context.Shops.FirstOrDefault(rec => rec.Id == model.Id);
+                if (shop == null)
+                {
+                    return null;
+                }
+
+                shop.Update(model);
+                context.SaveChanges();
+                shop.UpdateSushis(context, model);
+                transaction.Commit();
+                return shop.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        /// <summary>
+        /// Удаление элемента
+        /// </summary>
+        /// <param name="model"></param>
+        /// <returns></returns>
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new SushiBarDatabase();
+            var element = context.Shops
+                .Include(x => x.Sushis)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Продажа изделий
+        /// </summary>
+        /// <param name="model"></param>
+        /// <param name="count"></param>
+        /// <returns></returns>
+        public bool SellSushis(ISushiModel model, int count)
+        {
+            using var context = new SushiBarDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var shops = context.Shops
+                    .Include(x => x.Sushis)
+                    .ThenInclude(x => x.Sushi)
+                    .ToList()
+                    .Where(x => x.ShopSushis.ContainsKey(model.Id));
+
+                foreach (var shop in shops)
+                {
+                    int countInCurrentShop = shop.ShopSushis[model.Id].Item2;
+                    if (countInCurrentShop <= count)
+                    {
+                        var elem = context.ShopSushis
+                            .Where(x => x.SushiId == model.Id)
+                            .FirstOrDefault(x => x.ShopId == shop.Id);
+                        context.ShopSushis.Remove(elem);
+                        shop.ShopSushis.Remove(model.Id);
+                        count -= countInCurrentShop;
+                    }
+                    else
+                    {
+                        shop.ShopSushis[model.Id] = (shop.ShopSushis[model.Id].Item1, countInCurrentShop - count);
+                        count = 0;
+                        shop.UpdateSushis(context, new ShopBindingModel
+                        {
+                            Id = shop.Id,
+                            ShopName = shop.ShopName,
+                            Address = shop.Address,
+                            DateOpening = shop.DateOpening,
+                            ShopSushis = shop.ShopSushis,
+                            MaxCountSushis = shop.MaxCountSushis
+                        });
+                    }
+                    if (count <= 0)
+                    {
+                        context.SaveChanges();
+                        transaction.Commit();
+                        return true;
+                    }
+                }
+                transaction.Rollback();
+                return false;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        /// <summary>
+        /// Проверка наличия в нужном количестве
+        /// </summary>
+        /// <param name="model"></param>
+        /// <param name="count"></param>
+        /// <returns></returns>
+        /// <exception cref="NotImplementedException"></exception>
+        public bool CheckCountSushi(ISushiModel model, int count)
+        {
+            throw new NotImplementedException();
+        }
+        /*public bool CheckCountSushi(ISushiModel model, int count)
+        {
+            int store = _source.Shops.Select(x => x.ShopSushis.Select(y =>
+            (y.Value.Item1.Id == model.Id ? y.Value.Item2 : 0)).Sum()).Sum();
+            return store >= count;
+        }
+
+        public bool SellSushis(ISushiModel model, int count)
+        {
+            var sushi = _source.Sushis.FirstOrDefault(x => x.Id == model.Id);
+            if (sushi == null || !CheckCountSushi(model, count))
+            {
+                throw new ArgumentNullException("Такого количества суш нет, продать столько низя ");
+            }
+
+            foreach (var shop in _source.Shops)
+            {
+                var sushis = shop.ShopSushis;
+                foreach (var elem in sushis.Where(x => x.Value.Item1.Id == sushi.Id))
+                {
+                    var selling = Math.Min(elem.Value.Item2, count);
+                    sushis[elem.Value.Item1.Id] = (elem.Value.Item1, elem.Value.Item2 - selling);
+                    count -= selling;
+
+                    if (count <= 0)
+                    {
+                        break;
+                    }
+                }
+
+                shop.Update(new ShopBindingModel
+                {
+                    Id = model.Id,
+                    ShopName = shop.ShopName,
+                    Address = shop.Address,
+                    DateOpening = shop.DateOpening,
+                    ShopSushis = sushis,
+                    MaxCountSushis = shop.MaxCountSushis
+                });
+            }
+
+            _source.SaveShops();
+            return true;
+        }*/
     }
 }

SushiBarDatabaseImplement/Migrations/20240421182209_InitCreate.Designer.cs

@@ -12,7 +12,7 @@ using SushiBarDatabaseImplement;
 namespace SushiBarDatabaseImplement.Migrations
 {
     [DbContext(typeof(SushiBarDatabase))]
-    [Migration("20240310073215_InitCreate")]
+    [Migration("20240421182209_InitCreate")]
     partial class InitCreate
     {
         /// <inheritdoc />
@@ -78,6 +78,59 @@ namespace SushiBarDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpening")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCountSushis")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.ShopSushi", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SushiId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ShopId");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("ShopSushis");
+                });
+
             modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
                 {
                     b.Property<int>("Id")
@@ -133,6 +186,25 @@ namespace SushiBarDatabaseImplement.Migrations
                         .IsRequired();
                 });
 
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.ShopSushi", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Sushis")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", "Sushi")
+                        .WithMany()
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Shop");
+
+                    b.Navigation("Sushi");
+                });
+
             modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", b =>
                 {
                     b.HasOne("SushiBarDatabaseImplement.Models.Component", "Component")
@@ -157,6 +229,11 @@ namespace SushiBarDatabaseImplement.Migrations
                     b.Navigation("SushiComponents");
                 });
 
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Sushis");
+                });
+
             modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
                 {
                     b.Navigation("Components");

SushiBarDatabaseImplement/Migrations/20240421182209_InitCreate.cs

@@ -25,6 +25,22 @@ namespace SushiBarDatabaseImplement.Migrations
                     table.PrimaryKey("PK_Components", x => x.Id);
                 });
 
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Address = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    DateOpening = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    MaxCountSushis = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
             migrationBuilder.CreateTable(
                 name: "Sushis",
                 columns: table => new
@@ -63,6 +79,33 @@ namespace SushiBarDatabaseImplement.Migrations
                         onDelete: ReferentialAction.Cascade);
                 });
 
+            migrationBuilder.CreateTable(
+                name: "ShopSushis",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    SushiId = table.Column<int>(type: "int", nullable: false),
+                    ShopId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopSushis", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopSushis_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopSushis_Sushis_SushiId",
+                        column: x => x.SushiId,
+                        principalTable: "Sushis",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
             migrationBuilder.CreateTable(
                 name: "SushiComponents",
                 columns: table => new
@@ -95,6 +138,16 @@ namespace SushiBarDatabaseImplement.Migrations
                 table: "Orders",
                 column: "SushiId");
 
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopSushis_ShopId",
+                table: "ShopSushis",
+                column: "ShopId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopSushis_SushiId",
+                table: "ShopSushis",
+                column: "SushiId");
+
             migrationBuilder.CreateIndex(
                 name: "IX_SushiComponents_ComponentId",
                 table: "SushiComponents",
@@ -112,9 +165,15 @@ namespace SushiBarDatabaseImplement.Migrations
             migrationBuilder.DropTable(
                 name: "Orders");
 
+            migrationBuilder.DropTable(
+                name: "ShopSushis");
+
             migrationBuilder.DropTable(
                 name: "SushiComponents");
 
+            migrationBuilder.DropTable(
+                name: "Shops");
+
             migrationBuilder.DropTable(
                 name: "Components");
 

SushiBarDatabaseImplement/Migrations/SushiBarDatabaseModelSnapshot.cs

@@ -75,6 +75,59 @@ namespace SushiBarDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpening")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCountSushis")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.ShopSushi", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SushiId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ShopId");
+
+                    b.HasIndex("SushiId");
+
+                    b.ToTable("ShopSushis");
+                });
+
             modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
                 {
                     b.Property<int>("Id")
@@ -130,6 +183,25 @@ namespace SushiBarDatabaseImplement.Migrations
                         .IsRequired();
                 });
 
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.ShopSushi", b =>
+                {
+                    b.HasOne("SushiBarDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("Sushis")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("SushiBarDatabaseImplement.Models.Sushi", "Sushi")
+                        .WithMany()
+                        .HasForeignKey("SushiId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Shop");
+
+                    b.Navigation("Sushi");
+                });
+
             modelBuilder.Entity("SushiBarDatabaseImplement.Models.SushiComponent", b =>
                 {
                     b.HasOne("SushiBarDatabaseImplement.Models.Component", "Component")
@@ -154,6 +226,11 @@ namespace SushiBarDatabaseImplement.Migrations
                     b.Navigation("SushiComponents");
                 });
 
+            modelBuilder.Entity("SushiBarDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("Sushis");
+                });
+
             modelBuilder.Entity("SushiBarDatabaseImplement.Models.Sushi", b =>
                 {
                     b.Navigation("Components");

SushiBarDatabaseImplement/Models/Shop.cs

@@ -56,6 +56,7 @@ namespace SushiBarDatabaseImplement.Models
                 ShopName = model.ShopName,
                 Address = model.Address,
                 MaxCountSushis = model.MaxCountSushis,
+                DateOpening = model.DateOpening,
                 Sushis = model.ShopSushis.Select(x => new ShopSushi
                 {
                     Sushi = context.Sushis.First(y => y.Id == x.Key), Count = x.Value.Item2
@@ -78,7 +79,7 @@ namespace SushiBarDatabaseImplement.Models
             MaxCountSushis = MaxCountSushis,
             ShopSushis = ShopSushis
         };
-        public void UpdateComponents(SushiBarDatabase context, ShopBindingModel model)
+        public void UpdateSushis(SushiBarDatabase context, ShopBindingModel model)
         {
             var ShopSushis = context.ShopSushis.Where(rec => rec.ShopId == model.Id).ToList();
             if (ShopSushis != null && ShopSushis.Count > 0)

SushiBarDatabaseImplement/SushiBarDatabase.cs

@@ -10,8 +10,8 @@ namespace SushiBarDatabaseImplement
             if (optionsBuilder.IsConfigured == false)
             {
 
-                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-78EBD1B\SQLEXPRESS;
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;
-                    Initial Catalog=SushiBarDatabase;
+                    Initial Catalog=SushiBarDatabaseLC3;
                     Integrated Security=True;
                     MultipleActiveResultSets=True;;
                     TrustServerCertificate=True"