using Data.SeaHavenIndustries;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace Data.SeaHavenIndustries.Migrations
{
    /// <inheritdoc />
    [DbContext(typeof(ApplicationDbContext))]
    [Migration("20260826120000_SH221_LocationAccountScope")]
    public partial class SH221_LocationAccountScope : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<int>(
                name: "AccountId",
                table: "Locations",
                type: "int",
                nullable: true);

            migrationBuilder.CreateIndex(
                name: "IX_Locations_AccountId",
                table: "Locations",
                column: "AccountId");

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

            migrationBuilder.Sql(@"
;WITH UniqueLocationAccounts AS (
    SELECT
        wo.[LocationId] AS [LocationId],
        MIN(wo.[AccountId]) AS [AccountId]
    FROM [workOrders] wo
    WHERE wo.[LocationId] IS NOT NULL
      AND wo.[AccountId] IS NOT NULL
    GROUP BY wo.[LocationId]
    HAVING COUNT(DISTINCT wo.[AccountId]) = 1
)
UPDATE loc
SET loc.[AccountId] = ula.[AccountId]
FROM [Locations] loc
INNER JOIN UniqueLocationAccounts ula
    ON ula.[LocationId] = loc.[Id]
WHERE loc.[AccountId] IS NULL;
");
        }

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

            migrationBuilder.DropIndex(
                name: "IX_Locations_AccountId",
                table: "Locations");

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