#include "ircbot.h"
#include <iostream>
#include <stdio.h>
#include <QStringList>

using namespace std;

void IRCBot::receiveMsg(QString str)
{
    Message msg = Message(str, &users);

    switch(status)
    {
    case OFFLINE :
        status = ONLINE;
        emit sendMsg(QString("NICK %1\r\nUSER %2 0 * %3").arg(nick).arg(nick).arg(nick));
        break;
    case ONLINE :
        if(str.contains("PING"))
        {
            status = ON_CHAN;
            emit sendMsg(pong(msg.nick));
            emit sendMsg(join(chan));
        }
        break;
    case ON_CHAN :
        if(str.contains("PING"))
            emit sendMsg(pong(msg.nick));
        handleMessage(msg);
        break;
    }
}

void IRCBot::handleMessage(Message msg)
{
    // si la ligne est un message
    if(msg.command.compare(QString("PRIVMSG"), Qt::CaseInsensitive) == 0)
    {
        // mise à jour du bot
        if(msg.args.compare("!update") == 0 && msg.src != NULL && msg.src->isOp())
            emit sendMsg(quit("Rebooting for update..."));

        // affiche les gens connectés
        if(msg.args.compare("!list") == 0)
        {
            QString str = "Online users : ";
            for(User* u : users)
            {
                if(u->isOp())
                    str.append("@");
                str.append(u->getNick());
                str.append(" ");
            }
            emit sendMsg(say(str));
        }
    }

    // renommage
    else if(msg.command.compare("NICK", Qt::CaseInsensitive) == 0)
        msg.src->rename(msg.args);
    else if(msg.command.compare("QUIT", Qt::CaseInsensitive) == 0)
        users.remove(msg.src);
    else if(msg.command.compare("PART", Qt::CaseInsensitive) == 0)
        users.remove(msg.src);
    else if(msg.command.compare("KICK", Qt::CaseInsensitive) == 0)
    {
        if(nick.compare(msg.target2) == 0)
            emit sendMsg(quit("i've been kicked :("));
        users.remove(users.getFromNick(msg.target2));
    }
    else if(msg.command.compare("JOIN", Qt::CaseInsensitive) == 0
            && msg.args.contains(chan)
            && nick.compare(msg.nick) != 0)
    {
            users.getOrAdd(msg.nick);
            emit sendMsg(whois(msg.nick));
    }

    // 353 = code de la ligne qui liste les nicks connectés
    // on les parse et on effectue un WHOIS sur chaque nick
    else if(msg.command.compare(QString("353"), Qt::CaseInsensitive) == 0)
    {
        // names
        QStringList names = msg.args.split(' ');
        for(QString s : names)
        {
            users.getOrAdd(s);
            emit sendMsg(whois(s));
        }
    }

    // 319 = code de la ligne de réponse au whois qui indique les chans d'un user, et son statut dessus
    else if(msg.command.compare(QString("319"), Qt::CaseInsensitive) == 0)
    {
        User* u = users.getOrAdd(msg.target2);
        QStringList chanList = msg.args.split(' ');
        for(QString s : chanList)
        {
            if(s.endsWith(chan))
            {
                u->setOp(s.startsWith('@'));
                break;
            }
        }
    }
}

QString IRCBot::pong(QString target)
{
    return QString("PONG :%1").arg(target);
}

QString IRCBot::join(QString theChan)
{
    return QString("JOIN #%1").arg(theChan);
}

QString IRCBot::whois(QString nick)
{
    return QString("WHOIS %1").arg(nick);
}

QString IRCBot::say(QString str)
{
    return QString("PRIVMSG #%1 :%2").arg(chan).arg(str);
}

QString IRCBot::privateSay(QString str, QString target)
{
    return QString("PRIVMSG %1 :%2").arg(target).arg(str);
}

QString IRCBot::action(QString str)
{
    return QString("PRIVMSG #%1 :\001ACTION %2\001").arg(chan).arg(str);
}

QString IRCBot::quit(QString str)
{
    return QString("QUIT :%1").arg(str);
}

void IRCBot::disconnect()
{
    emit sendMsg(quit("I'll be back"));
}