dpot-backend/Infrastructure/Persistence/Configurations/Forum/Posts/PostReactionConfiguration.cs

using Domain.Entities.Forum.Posts;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

namespace Infrastructure.Persistence.Configurations.Forum.Posts;

public sealed class PostReactionConfiguration : IEntityTypeConfiguration<PostReaction>
{
    public void Configure(EntityTypeBuilder<PostReaction> builder)
    {
        builder.HasIndex(x => x.BoardID);
        builder.HasIndex(x => x.PostID);
        builder.HasIndex(x => x.MemberID);
        builder.HasIndex(x => x.Reaction);
        builder.HasIndex(x => new { x.PostID, x.MemberID }).IsUnique();

        builder.HasOne(x => x.Board).WithMany().HasForeignKey(x => x.BoardID).OnDelete(DeleteBehavior.Restrict);
        builder.HasOne(x => x.Post).WithMany(x => x.PostReaction).HasForeignKey(x => x.PostID).OnDelete(DeleteBehavior.Cascade);
        builder.HasOne(x => x.Member).WithMany().HasForeignKey(x => x.MemberID).OnDelete(DeleteBehavior.Cascade);

        builder.ToTable("PostReaction", x => x.HasComment("게시글 반응"));
        builder.HasKey(x => x.ID);
        builder.Property(x => x.ID).ValueGeneratedOnAdd().HasComment("PK");
        builder.Property(x => x.BoardID).IsRequired().HasComment("게시판 ID");
        builder.Property(x => x.PostID).IsRequired().HasComment("게시글 ID");
        builder.Property(x => x.MemberID).IsRequired().HasComment("회원 ID");
        builder.Property(x => x.Reaction).HasConversion<byte>().IsRequired().HasComment("반응 구분");
        builder.Property(x => x.IpAddress).HasMaxLength(50).HasComment("IP Address");
        builder.Property(x => x.UserAgent).HasMaxLength(255).HasComment("User-agent");
        builder.Property(x => x.UpdatedAt).HasComment("수정 일시");
        builder.Property(x => x.CreatedAt).IsRequired().HasComment("등록 일시");
    }
}