using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using System.Threading.Tasks;

namespace WaterCloud.Code
{
	/// <summary>
	/// 全局异常过滤器,MVC使用
	/// </summary>
	public class GlobalExceptionFilter : IExceptionFilter, IAsyncExceptionFilter
	{
		public void OnException(ExceptionContext context)
		{
			LogHelper.WriteWithTime(context);
			if (context.HttpContext.Request.IsAjaxRequest())
			{
				AlwaysResult obj = new AlwaysResult();
				obj.state = ResultType.error.ToString();
				obj.message = context.Exception.GetOriginalException().Message;
				if (string.IsNullOrEmpty(obj.message))
				{
					obj.message = "抱歉，系统错误，请联系管理员！";
				}
				context.Result = new JsonResult(obj);
				context.ExceptionHandled = true;
			}
			else
			{
				//context.HttpContext.Response.WriteAsync("<script>top.location.href ='" + context.HttpContext.Request.PathBase + "/Home/Error?msg=500" + "';if(document.all) window.event.returnValue = false;</script>");
				context.Result = new RedirectResult(context.HttpContext.Request.PathBase + "/Home/Error?msg=500");
				context.ExceptionHandled = true;
			}
		}

		public Task OnExceptionAsync(ExceptionContext context)
		{
			OnException(context);
			return Task.CompletedTask;
		}
	}
}