using System;
using Microsoft.AspNetCore.Mvc.Filters;
using WebAPI.Services.Interfaces;

namespace WebAPI
{
    public class HandleExceptionFilter : IExceptionFilter
    {
        private readonly ILoggingService _loggingService;

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

        public void OnException(ExceptionContext context)
        {
            if (context == null)
            {
                throw new ArgumentNullException(nameof(context));
            }

            Exception exception = context.Exception;

            // Log exception
            string requestUrl = $"{context.HttpContext.Request.Scheme}://{context.HttpContext.Request.Host}{context.HttpContext.Request.Path}{context.HttpContext.Request.QueryString}";
            int errorTrackNo = _loggingService.Error(exception, requestUrl);

            // Optionally, you can set the result here
            // context.Result = new ObjectResult($"Error Track No:{errorTrackNo}")
            // {
            //     StatusCode = 500
            // };
        }
    }
}