using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace Infrastructure.Migrations.AppDb;

/// <inheritdoc />
public partial class AddChannelHandleHistory : Migration
{
    /// <inheritdoc />
    protected override void Up(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.CreateTable(
            name: "ChannelHandleHistory",
            columns: table => new
            {
                ID = table.Column<int>(type: "int", nullable: false, comment: "PK")
                    .Annotation("SqlServer:Identity", "1, 1"),
                ChannelID = table.Column<int>(type: "int", nullable: false, comment: "채널 ID"),
                OldHandle = table.Column<string>(type: "nvarchar(30)", maxLength: 30, nullable: false, comment: "이전 핸들"),
                ChangedAt = table.Column<DateTime>(type: "datetime2", nullable: false, comment: "변경 일시")
            },
            constraints: table =>
            {
                table.PrimaryKey("PK_ChannelHandleHistory", x => x.ID);
                table.ForeignKey(
                    name: "FK_ChannelHandleHistory_Channel_ChannelID",
                    column: x => x.ChannelID,
                    principalTable: "Channel",
                    principalColumn: "ID",
                    onDelete: ReferentialAction.Cascade);
            },
            comment: "채널 핸들 변경 이력");

        migrationBuilder.CreateIndex(
            name: "IX_ChannelHandleHistory_ChannelID_ChangedAt",
            table: "ChannelHandleHistory",
            columns: new[] { "ChannelID", "ChangedAt" },
            descending: new[] { false, true });

        migrationBuilder.CreateIndex(
            name: "IX_ChannelHandleHistory_OldHandle",
            table: "ChannelHandleHistory",
            column: "OldHandle");
    }

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