using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace mws.backend.dotnet.infrastructure.Migrations
{
    /// <inheritdoc />
    public partial class AddProjectAuditFields : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<Guid>(
                name: "CreatedBy",
                table: "projects",
                type: "uuid",
                nullable: false,
                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));

            migrationBuilder.AddColumn<Guid>(
                name: "UpdatedBy",
                table: "projects",
                type: "uuid",
                nullable: true);

            migrationBuilder.CreateIndex(
                name: "IX_projects_CreatedBy",
                table: "projects",
                column: "CreatedBy");

            migrationBuilder.CreateIndex(
                name: "IX_projects_UpdatedBy",
                table: "projects",
                column: "UpdatedBy");

            migrationBuilder.Sql(
                """
                UPDATE projects
                SET "CreatedBy" = COALESCE(
                    (SELECT pm."UserId" FROM project_members pm WHERE pm."ProjectId" = projects."Id" AND pm."Role" = 'Owner' LIMIT 1),
                    (SELECT pm."UserId" FROM project_members pm WHERE pm."ProjectId" = projects."Id" LIMIT 1),
                    (SELECT "Id" FROM users ORDER BY "CreatedAt" LIMIT 1)
                )
                WHERE "CreatedBy" = '00000000-0000-0000-0000-000000000000';
                """);

            migrationBuilder.AlterColumn<Guid>(
                name: "CreatedBy",
                table: "projects",
                type: "uuid",
                nullable: false);

            migrationBuilder.AddForeignKey(
                name: "FK_projects_users_CreatedBy",
                table: "projects",
                column: "CreatedBy",
                principalTable: "users",
                principalColumn: "Id",
                onDelete: ReferentialAction.Restrict);

            migrationBuilder.AddForeignKey(
                name: "FK_projects_users_UpdatedBy",
                table: "projects",
                column: "UpdatedBy",
                principalTable: "users",
                principalColumn: "Id",
                onDelete: ReferentialAction.Restrict);
        }

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

            migrationBuilder.DropForeignKey(
                name: "FK_projects_users_UpdatedBy",
                table: "projects");

            migrationBuilder.DropIndex(
                name: "IX_projects_CreatedBy",
                table: "projects");

            migrationBuilder.DropIndex(
                name: "IX_projects_UpdatedBy",
                table: "projects");

            migrationBuilder.DropColumn(
                name: "CreatedBy",
                table: "projects");

            migrationBuilder.DropColumn(
                name: "UpdatedBy",
                table: "projects");
        }
    }
}