Add migrations

Distribution/Data/AppDBContext.cs

@@ -22,6 +22,9 @@ public class AppDBContext(DbContextOptions<AppDBContext> options) : DbContext(op
     public DbSet<ShopPO> ShopPOs { get; set; }
     public DbSet<ShopPOItem> ShopPOItems { get; set; }
     public DbSet<Invoice> Invoices { get; set; }
+    public DbSet<InvoiceItem> InvoiceItems { get; set; }
+    public DbSet<InvoiceVersion> InvoiceVersions { get; set; }
+    public DbSet<InvoiceVersionItem> InvoiceVersionItems { get; set; }
     public DbSet<LoadingSheetOrder> LoadingSheetOrders { get; set; }
     public DbSet<DeliveryRun> DeliveryRuns { get; set; }
     public DbSet<User> Users { get; set; }
@@ -175,6 +178,54 @@ public class AppDBContext(DbContextOptions<AppDBContext> options) : DbContext(op
             .HasForeignKey(i => i.FK_ShopPOId)
             .OnDelete(DeleteBehavior.Restrict);
 
+        modelBuilder.Entity<InvoiceItem>()
+            .HasOne(i => i.Invoice)
+            .WithMany(inv => inv.Items)
+            .HasForeignKey(i => i.FK_InvoiceId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        modelBuilder.Entity<InvoiceItem>()
+            .HasOne(i => i.ShopPOItem)
+            .WithMany()
+            .HasForeignKey(i => i.FK_ShopPOItemId)
+            .OnDelete(DeleteBehavior.Restrict)
+            .IsRequired(false);
+
+        modelBuilder.Entity<InvoiceItem>()
+            .HasOne(i => i.Item)
+            .WithMany()
+            .HasForeignKey(i => i.FK_ItemId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        modelBuilder.Entity<InvoiceVersion>()
+            .HasOne(v => v.Invoice)
+            .WithMany()
+            .HasForeignKey(v => v.FK_InvoiceId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        modelBuilder.Entity<InvoiceVersion>()
+            .HasIndex(v => new { v.FK_InvoiceId, v.VersionNumber })
+            .IsUnique();
+
+        modelBuilder.Entity<InvoiceVersionItem>()
+            .HasOne(i => i.InvoiceVersion)
+            .WithMany(v => v.Items)
+            .HasForeignKey(i => i.FK_InvoiceVersionId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        modelBuilder.Entity<InvoiceVersionItem>()
+            .HasOne(i => i.ShopPOItem)
+            .WithMany()
+            .HasForeignKey(i => i.FK_ShopPOItemId)
+            .OnDelete(DeleteBehavior.Restrict)
+            .IsRequired(false);
+
+        modelBuilder.Entity<InvoiceVersionItem>()
+            .HasOne(i => i.Item)
+            .WithMany()
+            .HasForeignKey(i => i.FK_ItemId)
+            .OnDelete(DeleteBehavior.Restrict);
+
         modelBuilder.Entity<Invoice>()
             .HasMany(i => i.Payments)
             .WithOne(p => p.Invoice)

Distribution/Migrations/20261020123138_AddInvoiceItems.cs

@@ -0,0 +1,81 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Distribution.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddInvoiceItems : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "InvoiceItems",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    FK_InvoiceId = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    FK_ShopPOItemId = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    FK_ItemId = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    Quantity = table.Column<int>(type: "int", nullable: false),
+                    UnitPrice = table.Column<decimal>(type: "decimal(65,30)", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
+                    IsActive = table.Column<bool>(type: "tinyint(1)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InvoiceItems", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InvoiceItems_Invoices_FK_InvoiceId",
+                        column: x => x.FK_InvoiceId,
+                        principalTable: "Invoices",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_InvoiceItems_Items_FK_ItemId",
+                        column: x => x.FK_ItemId,
+                        principalTable: "Items",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_InvoiceItems_ShopPOItems_FK_ShopPOItemId",
+                        column: x => x.FK_ShopPOItemId,
+                        principalTable: "ShopPOItems",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                })
+                .Annotation("MySql:CharSet", "utf8mb4");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceItems_FK_InvoiceId",
+                table: "InvoiceItems",
+                column: "FK_InvoiceId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceItems_FK_ItemId",
+                table: "InvoiceItems",
+                column: "FK_ItemId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceItems_FK_ShopPOItemId",
+                table: "InvoiceItems",
+                column: "FK_ShopPOItemId");
+
+            // Backfill: snapshot each existing invoice's PO lines so older invoices can be edited/finalized.
+            migrationBuilder.Sql(@"
+                INSERT INTO InvoiceItems (Id, FK_InvoiceId, FK_ShopPOItemId, FK_ItemId, Quantity, UnitPrice, CreatedAt, IsActive)
+                SELECT UUID(), inv.Id, poi.Id, poi.FK_ItemId, poi.Quantity, poi.UnitPrice, NOW(6), 1
+                FROM Invoices inv
+                JOIN ShopPOItems poi ON poi.FK_ShopPOId = inv.FK_ShopPOId AND poi.IsActive = 1;");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "InvoiceItems");
+        }
+    }
+}

Distribution/Migrations/20261021052554_AddInvoiceVersionsAndLineEdits.cs

@@ -0,0 +1,157 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Distribution.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddInvoiceVersionsAndLineEdits : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<Guid>(
+                name: "FK_ShopPOItemId",
+                table: "InvoiceItems",
+                type: "char(36)",
+                nullable: true,
+                collation: "ascii_general_ci",
+                oldClrType: typeof(Guid),
+                oldType: "char(36)")
+                .OldAnnotation("Relational:Collation", "ascii_general_ci");
+
+            migrationBuilder.AddColumn<bool>(
+                name: "IsRemoved",
+                table: "InvoiceItems",
+                type: "tinyint(1)",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.CreateTable(
+                name: "InvoiceVersions",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    FK_InvoiceId = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    VersionNumber = table.Column<int>(type: "int", nullable: false),
+                    Stage = table.Column<int>(type: "int", nullable: false),
+                    TotalAmount = table.Column<decimal>(type: "decimal(65,30)", nullable: false),
+                    CreatedBy = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    CreatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
+                    IsActive = table.Column<bool>(type: "tinyint(1)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InvoiceVersions", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InvoiceVersions_Invoices_FK_InvoiceId",
+                        column: x => x.FK_InvoiceId,
+                        principalTable: "Invoices",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                })
+                .Annotation("MySql:CharSet", "utf8mb4");
+
+            migrationBuilder.CreateTable(
+                name: "InvoiceVersionItems",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    FK_InvoiceVersionId = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    FK_ShopPOItemId = table.Column<Guid>(type: "char(36)", nullable: true, collation: "ascii_general_ci"),
+                    FK_ItemId = table.Column<Guid>(type: "char(36)", nullable: false, collation: "ascii_general_ci"),
+                    Quantity = table.Column<int>(type: "int", nullable: false),
+                    UnitPrice = table.Column<decimal>(type: "decimal(65,30)", nullable: false),
+                    IsRemoved = table.Column<bool>(type: "tinyint(1)", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
+                    IsActive = table.Column<bool>(type: "tinyint(1)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InvoiceVersionItems", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InvoiceVersionItems_InvoiceVersions_FK_InvoiceVersionId",
+                        column: x => x.FK_InvoiceVersionId,
+                        principalTable: "InvoiceVersions",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_InvoiceVersionItems_Items_FK_ItemId",
+                        column: x => x.FK_ItemId,
+                        principalTable: "Items",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_InvoiceVersionItems_ShopPOItems_FK_ShopPOItemId",
+                        column: x => x.FK_ShopPOItemId,
+                        principalTable: "ShopPOItems",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                })
+                .Annotation("MySql:CharSet", "utf8mb4");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceVersionItems_FK_InvoiceVersionId",
+                table: "InvoiceVersionItems",
+                column: "FK_InvoiceVersionId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceVersionItems_FK_ItemId",
+                table: "InvoiceVersionItems",
+                column: "FK_ItemId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceVersionItems_FK_ShopPOItemId",
+                table: "InvoiceVersionItems",
+                column: "FK_ShopPOItemId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceVersions_FK_InvoiceId_VersionNumber",
+                table: "InvoiceVersions",
+                columns: new[] { "FK_InvoiceId", "VersionNumber" },
+                unique: true);
+
+            // Backfill: one baseline version per existing invoice from its current lines.
+            migrationBuilder.Sql(@"
+                INSERT INTO InvoiceVersions (Id, FK_InvoiceId, VersionNumber, Stage, TotalAmount, CreatedBy, CreatedAt, IsActive)
+                SELECT UUID(), inv.Id, 1,
+                       CASE inv.Status WHEN 0 THEN 0 WHEN 1 THEN 2 ELSE 3 END,
+                       inv.TotalAmount, inv.CreatedBy, NOW(6), 1
+                FROM Invoices inv;");
+
+            migrationBuilder.Sql(@"
+                INSERT INTO InvoiceVersionItems (Id, FK_InvoiceVersionId, FK_ShopPOItemId, FK_ItemId, Quantity, UnitPrice, IsRemoved, CreatedAt, IsActive)
+                SELECT UUID(), v.Id, ii.FK_ShopPOItemId, ii.FK_ItemId, ii.Quantity, ii.UnitPrice, ii.IsRemoved, NOW(6), 1
+                FROM InvoiceVersions v
+                JOIN InvoiceItems ii ON ii.FK_InvoiceId = v.FK_InvoiceId AND ii.IsActive = 1
+                WHERE v.VersionNumber = 1;");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "InvoiceVersionItems");
+
+            migrationBuilder.DropTable(
+                name: "InvoiceVersions");
+
+            migrationBuilder.DropColumn(
+                name: "IsRemoved",
+                table: "InvoiceItems");
+
+            migrationBuilder.AlterColumn<Guid>(
+                name: "FK_ShopPOItemId",
+                table: "InvoiceItems",
+                type: "char(36)",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"),
+                collation: "ascii_general_ci",
+                oldClrType: typeof(Guid),
+                oldType: "char(36)",
+                oldNullable: true)
+                .OldAnnotation("Relational:Collation", "ascii_general_ci");
+        }
+    }
+}