using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using NetTaste;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Utility.Entity;

namespace Utility
{
    public class ApiResponseActionFilter : IAsyncResultFilter
    {
        public async Task OnResultExecutionAsync(ResultExecutingContext context, ResultExecutionDelegate next)
        {
            if (context.Result is ObjectResult objectResult)
            {
                if (objectResult.StatusCode != null)
                {
                    await next();
                    return;
                }
                ApiResponse<object> apiResponse;
                if (objectResult.Value is SqlSugarPagedList)
                {
                    apiResponse = new ApiResponse<object>(
                    0, "请求成功",
                    ((SqlSugarPagedList)objectResult.Value).Items,
                    ((SqlSugarPagedList)objectResult.Value).Total);
                }
                else
                {
                    apiResponse = new ApiResponse<object>(
                    0, "请求成功",
                    objectResult.Value);
                }
                var json = JsonConvert.SerializeObject(apiResponse);
                context.HttpContext.Response.ContentType = "application/json";
                context.HttpContext.Response.ContentLength = Encoding.UTF8.GetByteCount(json);

                context.Result = new ObjectResult(apiResponse);
                //await context.HttpContext.Response.WriteAsync(json);

            }
            else if (context.Result is EmptyResult)
            {
                var apiResponse = new ApiResponse<object>(
                    context.HttpContext.Response.StatusCode == 200 ? 0 : 1,
                    context.HttpContext.Response.StatusCode == 200 ? "请求成功" : "错误",
                    "请求成功"
                );

                var json = JsonConvert.SerializeObject(apiResponse);
                context.HttpContext.Response.ContentType = "application/json";
                context.HttpContext.Response.ContentLength = Encoding.UTF8.GetByteCount(json);
                context.Result = new ObjectResult(apiResponse);
                //await context.HttpContext.Response.WriteAsync(json);
            }
            await next();
        }
    }
}