using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using StressClient.common;
using SuperSocket.ClientEngine;
using SuperSocket.ClientEngine.Protocol;

namespace StressClient
{
    class AsyncClient
    {
        private SuperSocket.ClientEngine.AsyncTcpSession _client = null;

        private int _idx = -1;
        private string _clientId = "";
        //private string _svr_ip = "127.0.0.1";
        //private int _svr_port = 8081;

        private string _svr_ip = AppSetting.Instance().server_address;//"120.25.176.175";
        private int _svr_port = AppSetting.Instance().server_port;

        // 最后成功请求时间
        string _last_req_time = "";

        public AsyncClient(int idx, string clientId)
        {
            _idx = idx;
            _clientId = clientId;
        }

        public void Run()
        {
            try
            {
                string message = string.Format("{0} 客户端开始运行", _clientId);
                System.Console.WriteLine(message);

                // 创建连接
                InitConnection();
                System.Threading.Thread.Sleep(2000);

                while (true)
                {
                    DateTime curTime = DateTime.Now;
                    if (should_send_now(curTime))
                    {
                        // 发送数据
                        SendRequest(curTime);
                    }

                    // 随机等待几秒
                    Random rdm = new Random();
                    int sleep_time = rdm.Next(5, 10);
                    System.Threading.Thread.Sleep(sleep_time * 1000);
                }
            }
            catch (Exception e)
            {
                System.Console.WriteLine(e.Message);
            }
        }


        private void InitConnection()
        {
            try
            {
                if (_client != null)
                    _client.Close();
                _client = new AsyncTcpSession();
                _client.Connect(new IPEndPoint(IPAddress.Parse(_svr_ip), _svr_port));

                // 连接断开事件
                _client.Closed += client_Closed;
                // 收到服务器数据事件
                _client.DataReceived += client_DataReceived;
                // 连接到服务器事件
                _client.Connected += client_Connected;
                // 发生错误的处理
                _client.Error += client_Error;
            }
            catch (Exception e)
            {
                System.Console.WriteLine(e.Message);
            }
        }
        

        public void SendRequest(DateTime curTime)
        {
            try
            {
                if (_client.IsConnected)
                {
                    string message = string.Format("[{0}] ClientId {1} 客户端发送数据", DateTime.Now, _clientId);
                    System.Console.WriteLine(message);


                    // 拼装请求串 
                    //byte[] arr = Encoding.Default.GetBytes(string.Format("{0} {1}", "ADD", "DDDDDDDD\r\n"));
                    string req_str = Helper.MakeReqStr1(_clientId, curTime);
                    byte[] arr = Encoding.UTF8.GetBytes(req_str);
                    _client.Send(arr, 0, arr.Length);

                    // 发送成功，修改最新请求时间
                    UpdateLastReqTime(curTime);
                }
                else
                {
                    InitConnection();
                }
            }
            catch(Exception)
            {

            }
        }
        //判断当前时间是否在工作时间段内
        protected bool CheckTimeSpan(string timeStr)
        {
	        string[] workTime = AppSetting.Instance().work_day_time_span;
	        string strWorkingTimeStart1 = workTime[0];//工作时间上午11
	        string strWorkingTimeEnd1 = workTime[1];
	        string strWorkingTimeStart2 = workTime[2];//工作时间上午11
	        string strWorkingTimeEnd2 = workTime[3];
            TimeSpan dspWorkingTimeStart1 = DateTime.Parse(strWorkingTimeStart1).TimeOfDay;
	        TimeSpan dspWorkingTimeEnd1 = DateTime.Parse(strWorkingTimeEnd1).TimeOfDay;
	        TimeSpan dspWorkingTimeStart2 = DateTime.Parse(strWorkingTimeStart2).TimeOfDay;
	        TimeSpan dspWorkingTimeEnd2 = DateTime.Parse(strWorkingTimeEnd2).TimeOfDay;

            //string time1 = "2017-2-17 8:10:00";
            DateTime t1 = Convert.ToDateTime(timeStr);
	        TimeSpan dspNow = t1.TimeOfDay;

	        if ((dspNow > dspWorkingTimeStart1 && dspNow < dspWorkingTimeEnd1)|| (dspNow > dspWorkingTimeStart2 && dspNow < dspWorkingTimeEnd2))
	        {
		        return true;
	        }
	        return false;
        }

        // 是否到了发送时间
        private bool should_send_now(DateTime curTime)
        {
            //判断当前时间是否在工作时间段内
            if (!CheckTimeSpan(curTime.ToString("yyyy-MM-dd HH:mm:ss")))
	        {
		        return false;
            }

            // 从未发送过
            if (_last_req_time == "")
                return true;

            // 分钟填5的倍数，秒填00
            int minute = curTime.Minute - curTime.Minute % 5;
            Object[] param = new Object[] { curTime.Year, curTime.Month, curTime.Day, curTime.Hour, minute, 0 };
            string cur_dt = string.Format("{0:D4}{1:D2}{2:D2}{3:D2}{4:D2}{5:D2}", param);

            // 此时刻已经请求过
            if (_last_req_time == cur_dt)
                return false;

            return true;

            //int t1 = (curTime.Hour * 100 + curTime.Minute) * 100 + curTime.Second;
            //int t2 = (curTime.Hour * 100 + minute) * 100 + 0;

            //// 不要偏离整5分太远
            //if (t1 - t2 < 25)
            //{
            //    return true;
            //}

            //return false;
        }


        // 修改最新请求时间
        private void UpdateLastReqTime(DateTime curTime)
        {
            // 分钟填5的倍数，秒填00
            int minute = curTime.Minute - curTime.Minute % 5;
            Object[] param = new Object[] { curTime.Year, curTime.Month, curTime.Day, curTime.Hour, minute, 0 };
            string cur_dt = string.Format("{0:D4}{1:D2}{2:D2}{3:D2}{4:D2}{5:D2}", param);
            _last_req_time = cur_dt;
        }

        private void client_Error(object sender, ErrorEventArgs e)
        {
            string message = string.Format("[{0}] ClientId {1} 客户端错误, {2}", DateTime.Now, _clientId, e.Exception.Message);
            System.Console.WriteLine(message);
            this.Error(message);
        }

        private void client_Connected(object sender, EventArgs e)
        {
            string message = string.Format("[{0}] ClientId {1} 客户端连接成功", DateTime.Now, _clientId);
            System.Console.WriteLine(message);
            this.Info(message);
        }

        private void client_DataReceived(object sender, DataEventArgs e)
        {
            string msg = Encoding.Default.GetString(e.Data, 0, e.Length).ToString().Replace("\r\n", "");
            string message = string.Format("[{0}][{1}] Recv {2}", DateTime.Now, _clientId, msg);
            Console.WriteLine(message);
            this.Info(message);
        }

        private void client_Closed(object sender, EventArgs e)
        {
            AsyncTcpSession client = sender as AsyncTcpSession;
            string message = string.Format("[{0}] ClientId {1} 客户端连接断开", DateTime.Now, _clientId);
            System.Console.WriteLine(message);
            this.Warn(message);
        }       
    }
}