using Microsoft.EntityFrameworkCore;
using System.IO;
namespace UtopiaCanteenSystem.Data;

/// <summary>
/// Factory for creating AppDbContext instances. Used by RfidService and SyncService
/// to avoid sharing a single context across async operations.
/// </summary>
public class DbContextFactory : IDbContextFactory<AppDbContext>
{
    private static readonly DbContextOptions<AppDbContext> Options;

    static DbContextFactory()
    {
        var builder = new DbContextOptionsBuilder<AppDbContext>();
        var dbPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "utopia_canteen.db");
        builder.UseSqlite($"Data Source={dbPath}");
        Options = builder.Options;
    }

    public AppDbContext CreateDbContext() => new AppDbContext(Options);
}