using IdentityShroud.Core.Model;
using IdentityShroud.Core.Security;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;

namespace IdentityShroud.Core;

public class DbConfiguration
{
    public string ConnectionString { get; set; } = "";
    public bool LogSensitiveData { get; set; } = false;
}

public class Db(
    IOptions<DbConfiguration> configuration, 
    ILoggerFactory? loggerFactory) 
    : DbContext
{
    public virtual DbSet<Client> Clients { get; set; }
    public virtual DbSet<Realm> Realms { get; set; }
    public virtual DbSet<RealmKey> Keys { get; set; }
    public virtual DbSet<RealmDek> Deks { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        var dekIdConverter = new ValueConverter<DekId, Guid>(
            id => id.Id,
            guid => new DekId(guid));

        var kekIdConverter = new ValueConverter<KekId, Guid>(
            id => id.Id,
            guid => new KekId(guid));

        modelBuilder.Entity<RealmDek>()
            .Property(d => d.Id)
            .HasConversion(dekIdConverter);

        modelBuilder.Entity<RealmDek>()
            .OwnsOne(d => d.KeyData, keyData =>
            {
                keyData.Property(k => k.KekId).HasConversion(kekIdConverter);
            });

        modelBuilder.Entity<RealmKey>()
            .OwnsOne(k => k.Key, key =>
            {
                key.Property(k => k.KekId).HasConversion(kekIdConverter);
            });

        modelBuilder.Entity<ClientSecret>()
            .OwnsOne(c => c.Secret, secret =>
            {
                secret.Property(s => s.DekId).HasConversion(dekIdConverter);
            });
    }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseNpgsql("<connection string>");
        optionsBuilder.UseNpgsql(
            configuration.Value.ConnectionString,
            o => o.MigrationsAssembly("IdentityShroud.Migrations")); // , o => o.UseNodaTime().UseVector().MigrationsAssembly("Migrations.KnowledgeBaseDB"));
        optionsBuilder.UseSnakeCaseNamingConvention();
        
        if (configuration.Value.LogSensitiveData)
            optionsBuilder.EnableSensitiveDataLogging();

        if (loggerFactory is { } )
        {
            optionsBuilder.UseLoggerFactory(loggerFactory);
        }
        
    }
}