using Femto.Modules.Media.Data;
using MediatR;

namespace Femto.Modules.Media.Infrastructure.PipelineBehaviours;

/// <summary>
/// automatically call unit of work after all requuests
/// </summary>
internal class SaveChangesPipelineBehaviour<TRequest, TResponse>(MediaContext context)
    : IPipelineBehavior<TRequest, TResponse> where TRequest : notnull
{
    public async Task<TResponse> Handle(
        TRequest request,
        RequestHandlerDelegate<TResponse> next,
        CancellationToken cancellationToken
    )
    {
        var response = await next(cancellationToken);
        if (context.ChangeTracker.HasChanges())
            await context.SaveChangesAsync(cancellationToken);
        return response;
    }
}