ANTOOZA-BACKEND/Infrastructure/Persistence/Configurations/Store/CouponConfiguration.cs

using Domain.Entities.Store;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

namespace Infrastructure.Persistence.Configurations.Store;

public sealed class CouponConfiguration : IEntityTypeConfiguration<Coupon>
{
    public void Configure(EntityTypeBuilder<Coupon> builder)
    {
        builder.ToTable(nameof(Coupon), t => t.HasComment("쿠폰 메타 (코드 풀의 상위)"));
        builder.HasKey(x => x.ID);

        builder.HasOne(x => x.Product).WithMany().HasForeignKey(x => x.ProductID).OnDelete(DeleteBehavior.Restrict);
        builder.HasOne(x => x.Game).WithMany().HasForeignKey(x => x.GameID).OnDelete(DeleteBehavior.Restrict);

        builder.Property(x => x.ProductID).IsRequired();
        builder.Property(x => x.GameID).IsRequired().HasComment("게임 ID (필수)");
        builder.Property(x => x.Name).HasMaxLength(200).IsRequired();
        builder.Property(x => x.ExpiresAt);
        builder.Property(x => x.UsagePolicy).HasConversion<int>().IsRequired();
        builder.Property(x => x.GeneratedCount).IsRequired();
        builder.Property(x => x.UsedCount).IsRequired();
        builder.Property(x => x.LowStockThreshold).IsRequired().HasDefaultValue(10);
        builder.Property(x => x.CreatedAt).IsRequired();
        builder.Property(x => x.UpdatedAt);

        builder.HasIndex(x => x.ProductID);
        builder.HasIndex(x => x.GameID);
    }
}