using System.Threading.Tasks;
using System.Threading;
using System.Web.Http.Filters;
using System;
using WebAPI.Services.Interfaces;

namespace WebAPI
{

    public class HandleExceptionFilter : IExceptionFilter
    {
        private ILoggingService _loggingService;

        public HandleExceptionFilter(ILoggingService loggingService)
        {
            _loggingService = loggingService;
        }

        public bool AllowMultiple => throw new NotImplementedException();

        public Task ExecuteExceptionFilterAsync(HttpActionExecutedContext actionExecutedContext, CancellationToken cancellationToken)
        {
            return Task.Run(new Action(() =>
            {
                if (actionExecutedContext == null)
                {
                    throw new ArgumentNullException("filterContext");
                }

                Exception exception = actionExecutedContext.Exception;
                if (actionExecutedContext.Response.StatusCode == System.Net.HttpStatusCode.InternalServerError)
                {
                    // Log exception
                    //_loggingService.Error(exception);
                    int errorTrackNo = _loggingService.Error(exception, actionExecutedContext.Request.RequestUri.AbsoluteUri);
                    //actionExecutedContext.Exception = new HttpException($"Error Track No:{errorTrackNo}");

                }
            }));
        }
    }
}