using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Net;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Net.Http.Headers;

namespace ICSSoft.FromERP
{
    public class HttpHelper
    {

        /// <summary>
        /// POST请求
        /// </summary>
        /// <param name="url">地址</param>
        /// <param name="requestJson">请求json</param>
        /// <param name="token">token</param>
        /// <returns></returns>
        public static async Task<T> HttpClientPost<T>(string url, string requestJson, Dictionary<string, string> dic=null , string contentType = "application/json", string token = "") where T : new()
        {

            string result = string.Empty;
            Uri postUrl = new Uri(url);
            using (HttpContent httpContent = new StringContent(requestJson, System.Text.Encoding.UTF8, contentType))
            {
                //使用注入的httpclientfactory获取client
                using (var httpClient = new HttpClient( ))
                {

                    if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
                    {
                        ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
                        ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
                    }

                    //设置请求头 
                    //设置超时时间
                    if (!string.IsNullOrEmpty(token))
                        httpClient.DefaultRequestHeaders.Add("Authorization", "Bearer " + token);
                    if (dic != null)
                    {
                        foreach (var item in dic)
                        {
                            httpClient.DefaultRequestHeaders.Add(item.Key, item.Value);
                        }
                    }
                   
                    httpClient.Timeout = new TimeSpan(0, 10, 0);
                    HttpResponseMessage res = httpClient.PostAsync(url, httpContent).Result;
                    res.EnsureSuccessStatusCode();
                    result =  res.Content.ReadAsStringAsync().Result;
                    return JsonConvert.DeserializeObject<T>(result);
                }
            }

        }

        public static async Task<T> HttpClientGet<T>(string url, string contentType = "application/json", string token = "") where T : new()
        {
            using (HttpClient httpClient = new HttpClient())
            {
                if (!string.IsNullOrEmpty(token))
                    httpClient.DefaultRequestHeaders.Add("Authorization", "Bearer " + token);
                httpClient.Timeout = new TimeSpan(0, 0, 60);
                HttpResponseMessage res = httpClient.GetAsync(url).Result;
                res.EnsureSuccessStatusCode();
                var t =  res.Content.ReadAsStringAsync().Result;
                return JsonConvert.DeserializeObject<T>(t);

            };

        }

        public static async Task<T> PostForm<T, R>(string url, R message, Dictionary<string, string> dic=null) where T : new()
        {
            var res = new T();

            using (HttpClient httpClient = new HttpClient())
            {
                if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
                {
                    ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
                    ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
                    // httpClient.BaseAddress. = HttpVersion.Version10;
                    //  httpClient.DefaultRequestVersion = HttpVersion.Version30,
                }

                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded"));
                var body = new List<KeyValuePair<string, string>>();
                foreach (PropertyInfo info in typeof(R).GetProperties())
                {
                    var entity = new KeyValuePair<string, string>(info.Name, info.GetValue(message).ToString());
                    body.Add(entity);
                }
                var content = new FormUrlEncodedContent(body);
                httpClient.DefaultRequestHeaders.Add("Method", "Post");
                if (dic != null)
                {
                    foreach (var item in dic)
                    {
                        httpClient.DefaultRequestHeaders.Add(item.Key, item.Value);
                    }
                }
                httpClient.Timeout = new TimeSpan(0, 2, 0);
                HttpResponseMessage response =  httpClient.PostAsync(url, content).Result;
                if ((int)response.StatusCode == 200)
                {
                    response.EnsureSuccessStatusCode();

                }
                string result = response.Content.ReadAsStringAsync().Result;
                res = JsonConvert.DeserializeObject<T>(result);

            }
            return res;
        }

        public static async Task<T> HttpPostNoFile<T>(string url, string data)
        {
           // Encoding encoding = Encoding.UTF8;
           // string jsonParam = data;
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.Method = "post";
            request.ContentType = "application/json";

            byte[] byteData = UTF8Encoding.UTF8.GetBytes(data.ToString());
            request.ContentLength = byteData.Length;

            using (Stream postStream = request.GetRequestStream())
            {
                postStream.Write(byteData, 0, byteData.Length);
            }
              
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
                {
                    var result=  reader.ReadToEnd().ToString();

                    return  JsonConvert.DeserializeObject<T>(result);
                }

            }
        }

        public static string PostData(byte[] data, string url, string contentType = "application/json", int timeout = 20)
        {
            //创建httpWebRequest对象
            HttpWebRequest httpRequest = null;
            if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
            {
                ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
                ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
                httpRequest = WebRequest.Create(url) as HttpWebRequest;
                httpRequest.ProtocolVersion = HttpVersion.Version10;
            }
            else
            {
                httpRequest = WebRequest.Create(url) as HttpWebRequest;
            }
            if (httpRequest == null)
            {
                throw new ApplicationException(string.Format("Invalid url string: {0}", url));
            }
            //填充httpWebRequest的基本信息
            httpRequest.ContentType = contentType;
            httpRequest.Method = "POST";
            httpRequest.Timeout = timeout * 1000;
            //填充并发送要post的内容
            httpRequest.ContentLength = data.Length;
            httpRequest.Headers.Add("deipaaskeyauth", "a5P1RTL4380zd9jpb57qXx63rdynUHN2");
            using (Stream requestStream = httpRequest.GetRequestStream())
            {
                requestStream.Write(data, 0, data.Length);
                requestStream.Close();
            }
            //发送post请求到服务器并读取服务器返回信息
            var response = httpRequest.GetResponse();
            using (Stream responseStream = response.GetResponseStream())
            {
                //读取服务器返回信息
                string stringResponse = string.Empty;
                using (StreamReader responseReader = new StreamReader(responseStream, Encoding.UTF8))
                {
                    stringResponse = responseReader.ReadToEnd();
                }
                responseStream.Close();
                return stringResponse;
            }
        }
    }
}