#include "fourasmodule.h"
#include "message.h"
#include "riddles.h"
#include <time.h>
#include <QHash>
#include <ctime>

FourasModule::FourasModule() : current(-1)
{
    riddles = new Riddles("res/fouras.txt", "res/fourasAnswers.txt");
    std::srand(time(NULL));
}

bool FourasModule::messageHandler(Message msg)
{
    if(msg.command.compare(QString("PRIVMSG"), Qt::CaseInsensitive) != 0 || !msg.target.contains(getChan()))
        return false;

    if(msg.args.compare("!fouras") == 0 && riddles->getNbRiddles() != 0)
    {
        nbClues = 0;
        current = rand() % riddles->getNbRiddles();
        QStringList riddle = riddles->getRiddle(current);
        answer = "";
        for(QString line : riddle)
            answer.append(say(line));
        return true;
    }
    else if(msg.args.compare("!help fouras") == 0)
    {
        answer = privateSay("fouras commands : !fouras, !answer", msg.nick);
        return true;
    }
    else if(msg.args.compare("!answer") == 0)
    {
        answer = say(QString("%1 - Perdu ! La réponse était : %2").arg(current).arg(riddles->getAnswer(current)));
        current = -1;
        return true;
    }
    else if(msg.args.compare("!repeat") == 0)
    {
        if(current != -1)
        {
            QStringList riddle = riddles->getRiddle(current);
            answer = "";
            for(QString line : riddle)
                answer.append(say(line));
            return true;
        }
    }
    else if(msg.args.compare("!clue") == 0)
    {
        if(current != -1)
        {
            QString str = riddles->getAnswer(current);
			
			// prepare the clue string
            QString finalString = "_";
            for(int i=0; i<str.size() - 1; ++i)
                finalString.append(" _");
			
			// initialize the rand function with the hash of the answer so the rand() function always reveal the characters in the same order
            std::srand(qHash(str));
            int nbRevealed = 0;
            for(int i=0; i<nbClues; ++i)
            {
				// find a character to reveal
                int id = std::rand()%str.size();
				while(finalString[id*2] != QChar('_'))
					id = std::rand()%str.size();
				
				// reveal it
				++nbRevealed;
				finalString[id*2] = str[id];
				
				// if too many letters are revealed, the players have lost the game
                if(nbRevealed == str.size())
                {
                    answer = say(QString("%1 - Perdu ! La réponse était : %2").arg(current).arg(str));
                    current = -1;
                    return true;
                }
            }
            ++nbClues;
            answer = say(QString("Indice : ").append(finalString));
            return true;
        }
    }

    if(current != -1 && msg.args.contains(riddles->getAnswer(current), Qt::CaseInsensitive))
    {
        answer = say(QString("Bravo %1 ! la réponse était bien : %2").arg(msg.nick).arg(riddles->getAnswer(current)));
        current = -1;
        return true;
    }

    return false;
}

QString FourasModule::getName()
{
    return "fouras";
}