using System;
using System.Web;
using System.Text;
using System.Net;
using System.IO;

namespace WebApp
{
    public class Utility
    {
        /// <summary>
        /// 读取BasicAuth Ticket
        /// </summary>
        /// <returns></returns>
        public static string GetBasicAuthTicket()
        {
            cookidLoginUser m = new cookidLoginUser();
            m = GetLoginUser();
            if (m != null)
            {
                string cookieGuid = m.loginGuid;//登录者guid
                return "BasicAuth " + GetTimestamp().ToString() + "_" + cookieGuid;
            }
            else
                return "BasicAuth " + GetTimestamp().ToString() + "_" + "null";

        }
        /// <summary>
        /// 读取登录实体
        /// </summary>
        /// <returns></returns>
        public static cookidLoginUser GetLoginUser()
        {
            HttpCookie cookies = HttpContext.Current.Request.Cookies["bthUserInfo"];//取cookie
            if (cookies == null)
                return null;
            cookidLoginUser m = new cookidLoginUser();
            m.loginGuid = HttpUtility.UrlDecode(cookies.Values["loginGuid".ToUpper()]);//这是用户的guid
            m.loginAgtGuid = HttpUtility.UrlDecode(cookies.Values["loginAgtGuid".ToUpper()]);
            m.loginRight = HttpUtility.UrlDecode(cookies.Values["loginRight".ToUpper()]);
            m.loginRightList = HttpUtility.UrlDecode(cookies.Values["loginRightList".ToUpper()]);
            return m;
        }
        
        /// <summary>
        /// http get 读取数据
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        public static string HttpGet(string url)
        {
            Encoding encoding = Encoding.UTF8;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "GET";
            request.Accept = "text/html, application/xhtml+xml, */*";
            request.ContentType = "application/json";
            request.Headers.Add("Authorization", GetBasicAuthTicket());
            try
            {
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
                {
                    return reader.ReadToEnd();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="url"></param>
        /// <param name="param"> @"{ ""mmmm"": ""89e"",""nnnnnn"": ""0101943"",""kkkkkkk"": ""e8sodijf9""}"</param>
        /// <returns></returns>
        public static string HttpPost(string url, string param)
        {
            string serviceAddress = url;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serviceAddress);
            request.Method = "POST";
            request.ContentType = "application/json";
            request.Headers.Add("Authorization", GetBasicAuthTicket());
            string strContent = param;
            using (StreamWriter dataStream = new StreamWriter(request.GetRequestStream()))
            {
                dataStream.Write(strContent);
                dataStream.Close();
            }
            try
            {
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                string encoding = response.ContentEncoding;
                if (encoding == null || encoding.Length < 1)
                {
                    encoding = "UTF-8"; //默认编码  
                }
                StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding));
                string retString = reader.ReadToEnd();
                return retString;
            }
            catch (System.Net.WebException ex)
            {
                throw ex;
            }


        }


        /// <summary>
        /// 读取时间戳
        /// </summary>
        /// <param name="d"></param>
        /// <returns></returns>
        public static double GetTimestamp()
        {
            DateTime d = DateTime.Now;
            TimeSpan ts = d.ToUniversalTime() - new DateTime(1970, 1, 1);
            return ts.TotalMilliseconds;     //精确到毫秒
        }

        /**
       * 向日志文件写入出错信息
       * @param className 类名
       * @param content 写入内容
       */
        public static void Error(string className, string content)
        {
            WriteLog("ERROR", className, content);
        }

        /**
        * 实际的写日志操作
        * @param type 日志记录类型
        * @param className 类名
        * @param content 写入内容
        */
        private static void WriteLog(string type, string className, string content)
        {
            string path = HttpContext.Current.Server.MapPath("~") + "logs";
            if (!Directory.Exists(path))
                Directory.CreateDirectory(path);

            string time = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");//获取当前系统时间
            string filename = path + "/" + DateTime.Now.ToString("yyyy-MM-dd") + ".log";//用日期对日志文件命名

            //创建或打开日志文件，向日志文件末尾追加记录
            StreamWriter mySw = File.AppendText(filename);

            //向日志文件写入内容
            string write_content = time + " " + type + " " + className + ": " + content;
            mySw.WriteLine(write_content);

            //关闭日志文件
            mySw.Close();
        }
    }

    public class cookidLoginUser
    {

        /// <summary>
        /// 登录者guid
        /// </summary>
        public string loginGuid
        {
            set;
            get;
        }

        /// <summary>
        /// 登录者agtGuid
        /// </summary>
        public string loginAgtGuid
        {
            set;
            get;
        }
        /// <summary>
        /// 登录者rightloginRightList
        /// </summary>
        public string loginRight
        {
            set;
            get;
        }
        /// <summary>
        /// 登录者loginRightList
        /// </summary>
        public string loginRightList
        {
            set;
            get;
        }
    }
}