using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace Data.SeaHavenIndustries.Migrations
{
    /// <inheritdoc />
    public partial class SH221_WorkOrderAccountScope : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<int>(
                name: "AccountId",
                table: "workOrders",
                type: "int",
                nullable: true);

            migrationBuilder.AddColumn<int>(
                name: "AccountId",
                table: "AspNetUsers",
                type: "int",
                nullable: true);

            migrationBuilder.CreateIndex(
                name: "IX_workOrders_AccountId",
                table: "workOrders",
                column: "AccountId");

            migrationBuilder.CreateIndex(
                name: "IX_AspNetUsers_AccountId",
                table: "AspNetUsers",
                column: "AccountId");

            migrationBuilder.AddForeignKey(
                name: "FK_AspNetUsers_Accounts_AccountId",
                table: "AspNetUsers",
                column: "AccountId",
                principalTable: "Accounts",
                principalColumn: "Id",
                onDelete: ReferentialAction.Restrict);

            migrationBuilder.AddForeignKey(
                name: "FK_workOrders_Accounts_AccountId",
                table: "workOrders",
                column: "AccountId",
                principalTable: "Accounts",
                principalColumn: "Id",
                onDelete: ReferentialAction.Restrict);

            // Best-effort backfill: unique Accounts.Name match against WorkOrder.Customer.
            migrationBuilder.Sql(@"
;WITH UniqueAccounts AS (
    SELECT
        a.[Id],
        a.[Name]
    FROM [Accounts] a
    WHERE a.[Name] IS NOT NULL
      AND LTRIM(RTRIM(a.[Name])) <> ''
      AND (a.[IsDeleted] IS NULL OR a.[IsDeleted] = 0)
      AND a.[Name] IN (
          SELECT a2.[Name]
          FROM [Accounts] a2
          WHERE a2.[Name] IS NOT NULL
            AND LTRIM(RTRIM(a2.[Name])) <> ''
            AND (a2.[IsDeleted] IS NULL OR a2.[IsDeleted] = 0)
          GROUP BY a2.[Name]
          HAVING COUNT(*) = 1
      )
)
UPDATE wo
SET wo.[AccountId] = ua.[Id]
FROM [workOrders] wo
INNER JOIN UniqueAccounts ua
    ON ua.[Name] = wo.[Customer]
WHERE wo.[AccountId] IS NULL
  AND wo.[Customer] IS NOT NULL
  AND LTRIM(RTRIM(wo.[Customer])) <> '';
");
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropForeignKey(
                name: "FK_AspNetUsers_Accounts_AccountId",
                table: "AspNetUsers");

            migrationBuilder.DropForeignKey(
                name: "FK_workOrders_Accounts_AccountId",
                table: "workOrders");

            migrationBuilder.DropIndex(
                name: "IX_workOrders_AccountId",
                table: "workOrders");

            migrationBuilder.DropIndex(
                name: "IX_AspNetUsers_AccountId",
                table: "AspNetUsers");

            migrationBuilder.DropColumn(
                name: "AccountId",
                table: "workOrders");

            migrationBuilder.DropColumn(
                name: "AccountId",
                table: "AspNetUsers");
        }
    }
}