using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using EonaCat.gRPC.Core.Entities;

namespace EonaCat.gRPC.Repository.DatabaseContext;

public class AppDbContext : DbContext
{
    private readonly ILoggerFactory _loggerFactory = new LoggerFactory();

    public AppDbContext(DbContextOptions<AppDbContext> context) : base(context)
    {

    }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseLoggerFactory(_loggerFactory);
        optionsBuilder.UseSqlServer().LogTo(Console.WriteLine).EnableDetailedErrors();
        base.OnConfiguring(optionsBuilder);
    }

    public override Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = new CancellationToken())
    {
        UpdateEntryLog();
        return base.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
    }

    public override Task<int> SaveChangesAsync(CancellationToken cancellationToken = new CancellationToken())
    {
        UpdateEntryLog();
        return base.SaveChangesAsync(cancellationToken);
    }

    private void UpdateEntryLog()
    {
        foreach (var entry in ChangeTracker.Entries<BaseEntity>())
        {
            switch (entry.State)
            {
                case EntityState.Added:
                    entry.Entity.CreatedAt = DateTime.UtcNow;
                    entry.Entity.UpdatedAt = DateTime.UtcNow;
                    break;
                case EntityState.Modified:
                    entry.Entity.UpdatedAt = DateTime.UtcNow;
                    break;
                case EntityState.Deleted:
                    entry.Entity.UpdatedAt = DateTime.UtcNow;
                    break;
            }
        }
    }

    public DbSet<UserEntity> Users { get; set; } = null!;
}