using back.DataModels;
using Microsoft.EntityFrameworkCore;

namespace back.persistance.data.relations;

public class EventRelationEstablisher: IRelationEstablisher
{
    public void EstablishRelation(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Event>(entity =>
        {
            entity.HasMany(d => d.Tags).WithMany(p => p.Events)
                .UsingEntity<Dictionary<string, object>>(
                    "EventTag",
                    r => r.HasOne<Tag>().WithMany()
                        .HasForeignKey("TagId")
                        .OnDelete(DeleteBehavior.ClientSetNull),
                    l => l.HasOne<Event>().WithMany()
                        .HasForeignKey("EventId")
                        .OnDelete(DeleteBehavior.ClientSetNull),
                    j =>
                    {
                        j.HasKey("EventId", "TagId");
                        j.ToTable("EventTags");
                    });
        });
    }
}