using HuanMeng.DotNetCore.Base;

using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;

using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

using System;


namespace HuanMeng.DotNetCore.MiddlewareExtend
{
    /// <summary>
    /// 异常中间件  
    /// </summary>
    public class ExceptionMiddleware
    {
        private readonly RequestDelegate _next;
        private readonly ILogger<ExceptionMiddleware> _logger;

        public ExceptionMiddleware(RequestDelegate next, ILogger<ExceptionMiddleware> logger)
        {
            _next = next;
            _logger = logger;
        }

        public async Task Invoke(HttpContext context)
        {
            try
            {
                await _next(context);
            }
            catch (ArgumentNullException ex)
            {
              

                context.Response.StatusCode = StatusCodes.Status200OK;
                BaseResponse<object> baseResponse = new BaseResponse<object>(ResponseCode.Common, ex.ParamName ?? "参数错误", null)
                {

                };
                context.Response.ContentType = "application/json; charset=utf-8";
                // 将异常信息写入 HTTP 响应
                await context.Response.WriteAsync(baseResponse.ToString());
            }
            catch (CustomException ex)
            {
                // 对自定义异常的特殊处理，不记录日志
                context.Response.StatusCode = StatusCodes.Status200OK;
                BaseResponse<object> baseResponse = new BaseResponse<object>(ResponseCode.Common, ex.ParamName ?? "", null);
                context.Response.ContentType = "application/json; charset=utf-8";
                // 将异常信息写入 HTTP 响应
                await context.Response.WriteAsync(baseResponse.ToString());
            }
            catch (Exception ex)
            {

                _logger.LogError(context.Request.Path.ToString(), ex, "异常记录");
                // 设置 HTTP 响应状态码为 500
                context.Response.ContentType = "application/json; charset=utf-8";
                context.Response.StatusCode = StatusCodes.Status200OK;
                BaseResponse<object> baseResponse = new BaseResponse<object>(ResponseCode.Error, ex.Message, null);
                // 将异常信息写入 HTTP 响应
                await context.Response.WriteAsync(baseResponse.ToString());
            }
            finally
            {

            }
        }
    }
}