academia/src/backend/Adapters/Driven/Persistence/Configurations/UserConfiguration.cs

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

namespace Adapters.Driven.Persistence.Configurations;

public class UserConfiguration : IEntityTypeConfiguration<User>
{
    public void Configure(EntityTypeBuilder<User> builder)
    {
        builder.ToTable("Users");

        builder.HasKey(u => u.Id);

        builder.Property(u => u.Username)
            .IsRequired()
            .HasMaxLength(50);

        builder.HasIndex(u => u.Username)
            .IsUnique();

        builder.Property(u => u.PasswordHash)
            .IsRequired()
            .HasMaxLength(256);

        builder.Property(u => u.Role)
            .IsRequired()
            .HasMaxLength(20);

        builder.Property(u => u.CreatedAt)
            .IsRequired();

        builder.HasOne(u => u.Student)
            .WithMany()
            .HasForeignKey(u => u.StudentId)
            .OnDelete(DeleteBehavior.SetNull);
    }
}