using Microsoft.AspNetCore.Http;
using Newtonsoft.Json;
using NPOI.SS.Formula.Functions;
using Ropin.Inspection.Model;
using System;
using System.Threading.Tasks;

namespace Ropin.Inspection.Api.Filters
{
    /// <summary>
    /// 请求记录中间件
    /// </summary>
    public class RequestMiddleware
    {
        private readonly RequestDelegate _next;
        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(RequestMiddleware));

        public RequestMiddleware(RequestDelegate next)
        {
            this._next = next;
        }
        public RequestMiddleware() { }

        public async Task Invoke(HttpContext httpContext)
        {
            //启用读取request
            httpContext.Request.EnableBuffering();
            var request = httpContext.Request;
            //请求接口
            var reqUrl = request.Path;
            //请求参数
            var querys= request.Query;

            object bodyData = null;
            // 检查请求内容类型是否为 application/json
            if (request.ContentType?.StartsWith("application/json", StringComparison.OrdinalIgnoreCase) == true)
            {
                try
                {
                    // 重置请求体流的位置
                    request.Body.Position = 0;
                    using (var reader = new System.IO.StreamReader(request.Body, System.Text.Encoding.UTF8, true, 1024, true))
                    {
                        var body = await reader.ReadToEndAsync();
                        // 反序列化 JSON 数据
                        bodyData = JsonConvert.DeserializeObject(body);
                    }
                    // 再次重置请求体流的位置，以便后续中间件或控制器能读取
                    request.Body.Position = 0;
                }
                catch (Exception ex)
                {
                    log.Error($"读取请求体时出错: {ex.Message}", ex);
                }
            }

            // 输出日志时包含请求体数据
            var logParams = new System.Collections.Generic.Dictionary<string, object>();
            foreach (var item in querys)
            {
                logParams[item.Key] = item.Value.ToString();
            }
            if (bodyData != null)
            {
                logParams["RequestBody"] = bodyData;
            }
            //
            Console.WriteLine(reqUrl);
            log.Info($"路径3：{reqUrl}");
            //log.Info($"路径3：{reqUrl}；参数：【{JsonConvert.SerializeObject(logParams)}】");
            await _next(httpContext);
        }
    }
}