using Newtonsoft.Json;
using System.Net;
using System.Net.Http.Headers;
using System.Text;
using WIDESEA_Common.Log;

namespace WIDESEA_Comm.Http
{
    public class HttpHelpers
    {
        private const int Timeout = 20 * 1000;

        /// <summary>
        /// post请求
        /// </summary>
        /// <param name="url"></param>
        /// <param name="parm">参数</param>
        /// <param name="rquestName">接口名称,用于日志分类</param>
        /// <returns></returns>
        public static string Post(string url, object parm, string rquestName = "")
        {
            HttpWebResponse response = null;
            StreamReader resultReader = null;
            string responseContent = string.Empty;
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Timeout = Timeout;
                request.Method = "POST";
                request.ContentType = "application/json; charset=UTF-8";
                parm = parm ?? "";
                byte[] data = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(parm));
                request.ContentLength = data.Length;
                using (Stream newStream = request.GetRequestStream())
                {
                    newStream.Write(data, 0, data.Length);
                };

                response = (HttpWebResponse)request.GetResponse();
                Stream webStream = response.GetResponseStream();
                if (webStream == null)
                {
                    throw new Exception("Network error");
                }

                int statsCode = (int)response.StatusCode;
                resultReader = new StreamReader(webStream, Encoding.UTF8);
                responseContent = resultReader.ReadToEnd();

                if (response != null)
                    response.Close();
                if (resultReader != null)
                    resultReader.Close();

                if (statsCode != 200)
                {
                    throw new Exception("异常，响应码：" + statsCode.ToString());
                }

                //WriteLog.Write_Log("System/API请求", rquestName, "请求成功", new { 请求报文 = parm, 接收报文 = responseContent });
                return responseContent;
            }
            catch (Exception ex)
            {
                WriteLog.Write_Log("API", rquestName, "请求异常", new { 请求报文 = parm, 接收报文 = responseContent, 错误 = ex.Message });
                throw ex;
            }
        }
        public static async Task<string?> PostAsync(string serviceAddress, string requestJson = null, string contentType = "application/json", Dictionary<string, string>? headers = null)
        {
            string result = string.Empty;
            DateTime beginDate = DateTime.Now;
            try
            {
                using (HttpContent httpContent = new StringContent(requestJson))
                {
                    httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                    using HttpClient httpClient = new HttpClient();
                    httpClient.Timeout = new TimeSpan(0, 0, 60);
                    if (headers != null)
                    {
                        foreach (KeyValuePair<string, string> header in headers)
                        {
                            httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
                        }
                    }

                    result = await httpClient.PostAsync(serviceAddress, httpContent).Result.Content.ReadAsStringAsync();
                }

                return result;
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
            finally
            {
            }
        }
        /// <summary>
        /// post请求
        /// </summary>
        /// <param name="url"></param>
        /// <param name="parm">参数</param>
        /// <param name="rquestName">接口名称,用于日志分类</param>
        /// <returns></returns>
        public static T Post<T>(string url, object parm, string rquestName = "") where T : class
        {
            HttpWebResponse response = null;
            StreamReader resultReader = null;
            string responseContent = string.Empty;
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Timeout = Timeout;
                request.Method = "POST";
                request.ContentType = "application/json; charset=UTF-8";
                parm = parm ?? "";
                byte[] data = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(parm));
                request.ContentLength = data.Length;
                using (Stream newStream = request.GetRequestStream())
                {
                    newStream.Write(data, 0, data.Length);
                };

                response = (HttpWebResponse)request.GetResponse();
                Stream webStream = response.GetResponseStream();
                if (webStream == null)
                {
                    throw new Exception("Network error");
                }

                int statsCode = (int)response.StatusCode;
                resultReader = new StreamReader(webStream, Encoding.UTF8);
                responseContent = resultReader.ReadToEnd();

                if (response != null)
                    response.Close();
                if (resultReader != null)
                    resultReader.Close();

                if (statsCode != 200)
                {
                    throw new Exception("异常，响应码：" + statsCode.ToString());
                }

                //WriteLog.Write_Log("System/API请求", rquestName, "请求成功", new { 请求报文 = parm, 接收报文 = responseContent });
                return JsonConvert.DeserializeObject<T>(responseContent);
            }
            catch (Exception ex)
            {
                WriteLog.Write_Log("API", rquestName, "请求异常", new { 请求报文 = parm, 接收报文 = responseContent, 错误 = ex.Message });
                throw ex;
            }
        }


        /// <summary>
        /// get请求
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="url"></param>
        /// <param name="parm">请求参数，添加在url</param>
        /// <param name="rquestName"></param>
        /// <returns></returns>
        public static T Get<T>(string url, object parm = null, string rquestName = "") where T : class
        {
            HttpWebResponse response = null;
            StreamReader resultReader = null;
            string responseContent = string.Empty;
            try
            {
                if (parm != null)
                {
                    var datas = JsonConvert.DeserializeObject<Dictionary<string, string>>(JsonConvert.SerializeObject(parm));
                    var keyList = datas.Keys;
                    int index = 0;
                    foreach (var key in datas.Keys)
                    {
                        if (index == 0)
                        {
                            url += $"?{key}={datas[key]}";
                        }
                        else
                        {
                            url += $"&{key}={datas[key]}";
                        }
                        index++;
                    }
                }
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Timeout = Timeout;
                request.Method = "GET";
                request.ContentType = "application/json; charset=UTF-8";

                response = (HttpWebResponse)request.GetResponse();
                Stream webStream = response.GetResponseStream();
                if (webStream == null)
                {
                    throw new Exception("Network error");
                }

                int statsCode = (int)response.StatusCode;
                resultReader = new StreamReader(webStream, Encoding.UTF8);
                responseContent = resultReader.ReadToEnd();

                if (response != null)
                    response.Close();
                if (resultReader != null)
                    resultReader.Close();

                if (statsCode != 200)
                {
                    throw new Exception("异常，响应码：" + statsCode.ToString());
                }

                WriteLog.Write_Log("API", rquestName, "请求成功", new { 请求报文 = parm, 接收报文 = responseContent });
                return JsonConvert.DeserializeObject<T>(responseContent);
            }
            catch (Exception ex)
            {
                WriteLog.Write_Log("API", rquestName, "请求异常", new { 请求报文 = parm, 接收报文 = responseContent, 错误 = ex.Message });
                throw ex;
            }
        }

    }
}