namespace SimpleLIS;

using Microsoft.EntityFrameworkCore;
using SimpleLIS.Models;

public class HL7DbContext : DbContext
{
    public DbSet<Message> Messages { get; set; }
    public DbSet<Patient> Patients { get; set; }
    public DbSet<Observation> Observations { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseSqlite("Data Source=hl7.db");
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Message>()
            .HasKey(m => m.MessageId);

        modelBuilder.Entity<Patient>()
            .HasKey(p => p.PatientId);

        modelBuilder.Entity<Observation>()
            .HasKey(o => o.ObservationId);

        modelBuilder.Entity<Message>()
            .HasMany(m => m.Observations)
            .WithOne(o => o.Message)
            .HasForeignKey(o => o.MessageId);
    }
}