using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;
using System.Net.Sockets;
using System.IO;

namespace twitchbotplaying
{
    public partial class Form1 : Form
    {
        #region Variables
        private static string userName = "toggbot";
        private static string password = "";
        private string channel = "sip_";
        IrcClient irc = new IrcClient("irc.chat.twitch.tv", 6667, userName, password);
        NetworkStream serverStream = default(NetworkStream);
        string readData = "";
        Thread chatThread;
        #endregion
        public Form1()
        {
            InitializeComponent();
        }


        private void getMessage()
        {
            serverStream = irc.tcpClient.GetStream();
            int buffssize = 0;
            byte[] inStream = new byte[10025];
            buffssize = irc.tcpClient.ReceiveBufferSize;

            while(true)
            {
                try
                {
                    readData = irc.readMessage();
                    msg();
                }
                catch(Exception e)
                {

                }
            }
        }

        private void msg()
        {
            if (this.InvokeRequired) this.Invoke(new MethodInvoker(msg));
            else
            {
                if (readData.Contains("PRIVMSG"))
                {
                    if (readData.Contains("bits="))
                    {
                        string[] bitVal = readData.Split(new[] { "bits=", ":" }, StringSplitOptions.None);
                        rtxtChatMeta.AppendText(bitVal[0] + "    " + bitVal[1] + Environment.NewLine);
                    }
                    else
                    {
                        string[] message = readData.Split(new[] { "#" + channel + " :" }, StringSplitOptions.None);
                        string username = readData.Split(new[] { ":", "!" }, StringSplitOptions.None)[1];
                        rtxtChatMessage.AppendText(/*username + ": " +*/ message[1] + Environment.NewLine);
                    }
                }
                else
                {
                    rtxtChatMeta.AppendText(readData + Environment.NewLine);
                }
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            irc.joinRoom(channel);
            chatThread = new Thread(getMessage);
            chatThread.Start();
        }

        private void Form1_Closing(object sender, FormClosingEventArgs e)
        {
            irc.leaveRoom();
            serverStream.Dispose();
            Environment.Exit(0);
        }
    }

    class IrcClient
    {
        private string userName;
        private string channel;

        public TcpClient tcpClient;
        private StreamReader inputStream;
        private StreamWriter outputStream;

        public IrcClient(string ip, int port, string userName, string password)
        {
            tcpClient = new TcpClient(ip, port);
            inputStream = new StreamReader(tcpClient.GetStream());
            outputStream = new StreamWriter(tcpClient.GetStream());

            outputStream.WriteLine("PASS " + password);
            outputStream.WriteLine("NICK " + userName);
            outputStream.WriteLine("USER " + userName + " 8 :" + userName);
            outputStream.WriteLine("CAP REQ :twitch.tv/membership");
            outputStream.WriteLine("CAP REQ :twitch.tv/commands");
            outputStream.WriteLine("CAP REQ :twitch.tv/tags");
            outputStream.Flush();
        }

        public void joinRoom(string channel)
        {
            this.channel = channel;
            outputStream.WriteLine("JOIN #" + channel);
            outputStream.Flush();
        }

        public void leaveRoom()
        {
            outputStream.Close();
            inputStream.Close();
        }

        public void sendIrcMessage(string message)
        {
            outputStream.WriteLine(message);
            outputStream.Flush();
        }

        public void sendChatMessage(string message)
        {
            sendIrcMessage(":" + userName + "|" + userName + "@" + ".tmi.twitch.tv PRIVMSG #" + channel + ":" + message);

        }
        public void pingResponse()
        {
            sendIrcMessage("PONG tmi.twitch.tv\r\n");
        }

        public string readMessage()
        {
            string message = "";
            message = inputStream.ReadLine();
            return (message);
        }
    }

}