using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace HH.AutoBom.Utils
{
    public class WebApiManager
    {

        #region HttpPost请求
        /// <summary>
        /// HttpPost请求
        /// </summary>
        /// <param name="url"></param>
        /// <param name="data"></param>
        /// <returns></returns>
        public static string HttPost(string apiPath, string data)
        {
            string returnStr = "";
            try
            {
                string url = GetApiUrl() + apiPath;

                //对所有代码产生的垃圾资源进行强制回收-慎用
                //System.GC.Collect();
                //请求地址获取用户授权信息
                WebRequest webRequest = System.Net.WebRequest.Create(url);
                webRequest.Timeout = 1000000;//设置请求超时时间10秒

                HttpWebRequest httpRequest = webRequest as System.Net.HttpWebRequest;
                httpRequest.Method = "post";
                httpRequest.ContentType = "application/json";
                httpRequest.KeepAlive = false;//设置不是常连接

                System.Text.Encoding encoding = System.Text.Encoding.UTF8;
                byte[] bytesToPost = encoding.GetBytes(data);
                httpRequest.ContentLength = bytesToPost.Length;
                System.IO.Stream requestStream = httpRequest.GetRequestStream();
                requestStream.Write(bytesToPost, 0, bytesToPost.Length);

                HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
                Stream stream = response.GetResponseStream();
                StreamReader Reader = new StreamReader(stream, Encoding.UTF8);
                returnStr = Reader.ReadToEnd();
                if (!string.IsNullOrEmpty(returnStr))
                {
                    returnStr = returnStr.Replace("\\", "");
                    returnStr = returnStr.TrimEnd('\"');
                    returnStr = returnStr.TrimStart('\"');
                }

                if (webRequest != null)
                {
                    webRequest.Abort();
                }
                if (httpRequest != null)
                {
                    httpRequest.Abort();
                }
                if (response != null)
                {
                    response.Dispose();
                    response.Close();
                }
                if (stream != null)
                {
                    stream.Dispose();
                    stream.Close();
                }
                if (Reader != null)
                {
                    Reader.Dispose();
                    Reader.Close();
                }
            }
            catch
            {
                returnStr = "";
            }
            return returnStr;
        }
        #endregion

        #region Http GET请求
        /// <summary>
        /// Http GET
        /// </summary>
        /// <param name="paramStr"></param>
        /// <returns></returns>
        public static string HttpGet(string apiPath, string paramStr = "")
        {
            string webUrl = GetApiUrl() + apiPath;

            string Data = webUrl + (paramStr == "" ? "" : "?") + paramStr;

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Data);
            request.Method = "GET";
            request.ContentType = "text/html;charset=UTF-8";

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();

            return retString;
        }
        #endregion

        #region 获得webapi的地址  不包括后面的控制器等
        /// <summary>
        /// 获得webapi的地址  不包括后面的控制器等
        /// </summary>
        /// <returns></returns>
        public static string GetApiUrl()
        {
            //获得配置文件中ERP的IP和端口
            string erpAddress = System.Configuration.ConfigurationManager.AppSettings["WeApiIp"].ToString();
            string erpPort = System.Configuration.ConfigurationManager.AppSettings["WebApiPort"].ToString();
            string url = "http://" + erpAddress + ":" + erpPort + "/";
            return url;
        }
        #endregion

        #region HttpGETData请求
        /// <summary>
        /// Http GET
        /// </summary>
        /// <param name="paramStr"></param>
        /// <returns></returns>
        public static string HttpGetData(string apiPath, string paramStr = "")
        {
            string webUrl = GetUrl() + apiPath;

            string Data = webUrl + (paramStr == "" ? "" : "?") + paramStr;

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Data);
            request.Method = "GET";
            request.ContentType = "text/html;charset=UTF-8";

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();

            return retString;
        }
        #endregion

        #region HttPostData请求
        /// <summary>
        /// HttpPost请求
        /// </summary>
        /// <param name="url"></param>
        /// <param name="data"></param>
        /// <returns></returns>
        public static string HttPostData(string apiPath, string data)
        {
            string returnStr = "";
            try
            {
                string url = GetUrl() + apiPath;

                //对所有代码产生的垃圾资源进行强制回收-慎用
                //System.GC.Collect();
                //请求地址获取用户授权信息
                WebRequest webRequest = System.Net.WebRequest.Create(url);
                webRequest.Timeout = 1000000;//设置请求超时时间10秒

                HttpWebRequest httpRequest = webRequest as System.Net.HttpWebRequest;
                httpRequest.Method = "post";
                httpRequest.ContentType = "application/json";
                httpRequest.KeepAlive = false;//设置不是常连接

                System.Text.Encoding encoding = System.Text.Encoding.UTF8;
                byte[] bytesToPost = encoding.GetBytes(data);
                httpRequest.ContentLength = bytesToPost.Length;
                System.IO.Stream requestStream = httpRequest.GetRequestStream();
                requestStream.Write(bytesToPost, 0, bytesToPost.Length);

                HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
                Stream stream = response.GetResponseStream();
                StreamReader Reader = new StreamReader(stream, Encoding.UTF8);
                returnStr = Reader.ReadToEnd();
                if (!string.IsNullOrEmpty(returnStr))
                {
                    returnStr = returnStr.Replace("\\", "");
                    returnStr = returnStr.TrimEnd('\"');
                    returnStr = returnStr.TrimStart('\"');
                }

                if (webRequest != null)
                {
                    webRequest.Abort();
                }
                if (httpRequest != null)
                {
                    httpRequest.Abort();
                }
                if (response != null)
                {
                    response.Dispose();
                    response.Close();
                }
                if (stream != null)
                {
                    stream.Dispose();
                    stream.Close();
                }
                if (Reader != null)
                {
                    Reader.Dispose();
                    Reader.Close();
                }
            }
            catch
            {
                returnStr = "";
            }
            return returnStr;
        }
        #endregion

        #region 获得webapi的地址  不包括后面的控制器等
        /// <summary>
        /// 获得webapi的地址  不包括后面的控制器等
        /// </summary>
        /// <returns></returns>
        public static string GetUrl()
        {
            //获得配置文件中ERP的IP和端口
            string erpAddress = System.Configuration.ConfigurationManager.AppSettings["WebIp"].ToString();
            string erpPort = System.Configuration.ConfigurationManager.AppSettings["WebPort"].ToString();
            string url = "http://" + erpAddress + ":" + erpPort + "/";
            return url;
        }
        #endregion
    }
}