using BlueLaminate.EFCore.Entities;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

namespace BlueLaminate.EFCore.Configurations;

public class SkinConditionSweepConfiguration : IEntityTypeConfiguration<SkinConditionSweep>
{
    public void Configure(EntityTypeBuilder<SkinConditionSweep> entity)
    {
        // One checkpoint per band per site: the natural key, and what the upsert
        // ("stamp") in SweepCheckpoints relies on.
        entity.HasIndex(e => new { e.SkinConditionId, e.Source }).IsUnique();

        // Each site's sweep orders its bands never-swept-first then stalest; index the
        // ordering it scans (filter by source, sort by swept_at).
        entity.HasIndex(e => new { e.Source, e.SweptAt });

        entity.HasOne(e => e.SkinCondition)
            .WithMany(c => c.Sweeps)
            .HasForeignKey(e => e.SkinConditionId)
            .OnDelete(DeleteBehavior.Cascade);
    }
}