using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace Infrastructure.Migrations.AppDb
{
    /// <inheritdoc />
    public partial class AddEmailLogQueue : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "EmailLog",
                columns: table => new
                {
                    ID = table.Column<long>(type: "bigint", nullable: false, comment: "PK")
                        .Annotation("SqlServer:Identity", "1, 1"),
                    ToAddress = table.Column<string>(type: "nvarchar(256)", maxLength: 256, nullable: false, comment: "수신자 이메일"),
                    Subject = table.Column<string>(type: "nvarchar(500)", maxLength: 500, nullable: false, comment: "제목"),
                    MessageHtml = table.Column<string>(type: "nvarchar(max)", nullable: false, comment: "HTML 본문"),
                    MessageText = table.Column<string>(type: "nvarchar(max)", nullable: true, comment: "텍스트 본문 (선택)"),
                    Status = table.Column<byte>(type: "tinyint", nullable: false, defaultValue: (byte)0, comment: "상태 (0=Pending, 1=Processing, 2=Sent, 3=Failed)"),
                    RetryCount = table.Column<int>(type: "int", nullable: false, defaultValue: 0, comment: "재시도 횟수"),
                    MaxRetryCount = table.Column<int>(type: "int", nullable: false, defaultValue: 3, comment: "최대 재시도 횟수"),
                    NextRetryAt = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "GETUTCDATE()", comment: "다음 시도 시각 (UTC)"),
                    LastError = table.Column<string>(type: "nvarchar(500)", maxLength: 500, nullable: true, comment: "마지막 오류 메시지"),
                    Category = table.Column<string>(type: "nvarchar(50)", maxLength: 50, nullable: true, comment: "카테고리 (auth.register, forum.post.notify 등)"),
                    CreatedAt = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "GETUTCDATE()", comment: "등록 시각 (UTC)"),
                    ProcessedAt = table.Column<DateTime>(type: "datetime2", nullable: true, comment: "처리 완료 시각 (UTC)"),
                    FailedAt = table.Column<DateTime>(type: "datetime2", nullable: true, comment: "실패 확정 시각 (UTC)")
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_EmailLog", x => x.ID);
                },
                comment: "이메일 발송 큐");

            migrationBuilder.CreateIndex(
                name: "IX_EmailLog_CreatedAt",
                table: "EmailLog",
                column: "CreatedAt");

            migrationBuilder.CreateIndex(
                name: "IX_EmailLog_Status_NextRetryAt",
                table: "EmailLog",
                columns: new[] { "Status", "NextRetryAt" });
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropTable(
                name: "EmailLog");
        }
    }
}