ANTOOZA-BACKEND/Infrastructure/Persistence/Migrations/20260706033713_AddMemberTrackRecord.cs

using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace Infrastructure.Migrations.AppDb
{
    /// <inheritdoc />
    public partial class AddMemberTrackRecord : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "MemberTrackRecord",
                columns: table => new
                {
                    MemberID = table.Column<int>(type: "int", nullable: false, comment: "회원 ID (PK)"),
                    Predictions = table.Column<int>(type: "int", nullable: false, comment: "채점 완료 예측 총계 (Hits+Misses+Voids)"),
                    Hits = table.Column<int>(type: "int", nullable: false, comment: "적중 수"),
                    Misses = table.Column<int>(type: "int", nullable: false, comment: "실패 수"),
                    Voids = table.Column<int>(type: "int", nullable: false, comment: "무효 수 (표본 제외)"),
                    HitRate = table.Column<decimal>(type: "decimal(5,2)", precision: 5, scale: 2, nullable: false, comment: "적중률 % (Hits/(Hits+Misses)*100)"),
                    CurrentStreak = table.Column<int>(type: "int", nullable: false, comment: "현재 연속 적중"),
                    BestStreak = table.Column<int>(type: "int", nullable: false, comment: "역대 최고 연속 적중"),
                    Tier = table.Column<byte>(type: "tinyint", nullable: false, comment: "배지 등급 (0=None/1=Bronze/2=Silver/3=Gold/4=GoldAnt)"),
                    UpdatedAt = table.Column<DateTime>(type: "datetime2", nullable: false, comment: "갱신 일시")
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_MemberTrackRecord", x => x.MemberID);
                    table.ForeignKey(
                        name: "FK_MemberTrackRecord_Member_MemberID",
                        column: x => x.MemberID,
                        principalTable: "Member",
                        principalColumn: "ID",
                        onDelete: ReferentialAction.Cascade);
                },
                comment: "회원 예측 트랙레코드 집계 (적중률 배지·리더보드)");

            migrationBuilder.CreateIndex(
                name: "IX_MemberTrackRecord_HitRate",
                table: "MemberTrackRecord",
                column: "HitRate",
                descending: new bool[0],
                filter: "[Predictions] >= 10");
        }

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