/*
# Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# src/core/pvsConnection.cpp
#    - ...
# -----------------------------------------------------------------------------
*/

#include "pvsClient.h"
#include "pvsServer.h"
#include "pvsConnectionManager.h"
#include "src/util/consoleLogger.h"
#include "src/core/vncConnection.h"
#include "src/gui/mainWindow.h"

#define CONST_PASS ""

PVSClient::PVSClient(PVSClientConnection *newClient)
{
    newClient->setParent(this); // so the object will be deleted when this object dies
    _pvsClientConnection = newClient;
    _vncConnection = NULL;
    _vncRwPasswordReceived = _vncPasswordReceived = _vncAllowed = false;
    _vncInitMutex = false;
    _hostString = newClient->getAddress();
    _hostName = _hostString; // for now
    //_gotFrame = false;
    _vncPort = -1;
    _vncProject = false;
    _connectionFrame = NULL;
    _loginName = "unseted";
}

PVSClient::~PVSClient()
{
    if (_vncConnection)
    {
    	disconnect(_vncConnection, SIGNAL(finished()), this, SLOT(vncFinished()));
        _vncConnection->clear();
        delete _vncConnection;
        _vncConnection = NULL;
    }
}

/* TODO: Call this method from an extra thread.
 * Imo there should be one thread (probably in ConnectionManager) that does this job.
 * Also, this function should just receive the data etc, but the actual drawing has to happen
 * in the Qt main thread (the thread the window belongs to)
 * Right now with GTK it would, but pay attention when switching to Qt
 * */

void PVSClient::tick()
{
    if (_vncInitMutex) return;
	if (_vncPasswordReceived && _vncAllowed && _vncRequested && _vncConnection == NULL)
	{
		vncProbe();
	}
}

QString PVSClient::getIp()
{
    return _hostString;
}

QString PVSClient::getDesktopName()
{
    if (_vncConnection)
    {
        return _vncConnection->getDesktopName();
    }

    return _hostName;
}

QString PVSClient::getUserName()
{
    return _userName;
}

QString PVSClient::getLoginName()
{
	return _loginName;
}

//Returns Port
int PVSClient::getPort(){
	return _vncPort;
}


bool PVSClient::getVNCAllowed()
{
	return _vncAllowed;
}

void PVSClient::requestVNCConnect()
{
    _vncRequested = true;
    _pvsClientConnection->push_back_send(PVSMsg(PVSCOMMAND, "VNCREQUEST", "YES"));
}

void PVSClient::setVncPassword(QString password)
{
    _vncPassword = password;
    _vncPasswordReceived = true;
}

void PVSClient::setVncRwPassword(QString password)
{
    _vncRwPassword = password;
    _vncRwPasswordReceived = true;
}

QString PVSClient::getPassword()
{
    return _vncPassword;
}

QString PVSClient::getRWPassword()
{
    return _vncRwPassword;
}

void PVSClient::setProject(bool value)
{
	_vncProject = value;

}

void PVSClient::setVncPort(int newPort)
{
    if (newPort < 1)
    {
        ConsoleLog writeNetwork("Client sent invalid vnc-port.");
        return;
    }
    _vncPort = newPort;
    ConsoleLog writeNetwork(QString("Received new vnc-port: ").append(int2String(newPort)));
}
void PVSClient::setAllowed(bool allow)
{
    _vncAllowed = allow;

    if (allow)
    {
        ConsoleLog writeLine(QString("VNCConnection was granted by the Client."));
        _vncRequested = true;
    }
    else
    {
        ConsoleLog writeLine(QString("VNCConnection was denied by the Client."));
        _vncPort = 0;
        _vncPasswordReceived = false;
    }

    if(_vncProject){
    	if(allow){
    		MainWindow::getConnectionWindow()->projectStations(_hostString);
    	}
    	else{
    		_vncProject = false;
    	}
    }
}

void PVSClient::shutDownVNC()
{
    if (_vncConnection)
    {
    	disconnect(_vncConnection, SIGNAL(finished()), this, SLOT(vncFinished()));
        _vncConnection->clear();
        delete _vncConnection;
        _vncConnection = NULL;
    }
}

void PVSClient::shutDownClient()
{
    if (_pvsClientConnection)
    {
        _pvsClientConnection->closeConnection();
    }
}

void PVSClient::onClientDisconnected()
{
    _pvsClientConnection = NULL;

}

bool PVSClient::getLocked()
{
    // TODO: Implement!
	// Previously "_pvsClientConnection->isLocked()" war returned,
	// but that method always returned "false" and was removed now.
	// It really didn't make any sense to put that there anyways, it has
	// to be taken care of in this class.
	return false;
}


bool PVSClient::sendMessage(PVSMsgType type, QString ident, QString message)
{
    if (_pvsClientConnection)
    {
        _pvsClientConnection->push_back_send(PVSMsg(type, (char*)ident.toUtf8().data(), message));
        return true;
    }
    return false;
}

bool PVSClient::sendMessage(PVSMsg message)
{
    if (_pvsClientConnection)
    {
        _pvsClientConnection->push_back_send(message);
        return true;
    }
    return false;
}

void PVSClient::vncProbe()
{
    _vncInitMutex = true;
    if (_vncPasswordReceived && _vncAllowed && _vncRequested)
    {
#ifndef local_test
        QString portString;
        if (_vncPort > 0)
        {
            portString = int2String(_vncPort);
        }
        else
        {
            portString = int2String(5900); //std port
            ConsoleLog writeError("WARNING: Using default vnc-port 5900");
        }
#else
        QString portString;
        portString = int2String(5900);
#endif

        if (_hostString.length() > 0)
        {
			char ** args = new char*[1];
			QString fullstring(_hostString);
			fullstring.append(":");
			fullstring.append(portString);
			args[0] = new char[fullstring.length()+1];
			std::cout << "[pvsC]connecting to: " << fullstring.toStdString() << std::endl;
			ConsoleLog writeNetwork(QString("connecting to: ").append(fullstring));
			//strcpy(args[0], host);
			strcpy(args[0], fullstring.toUtf8().data());
			VNCConnectInfo tmpInfo(1, args, _vncPassword);

            VNCConnection* newConnection = new VNCConnection(tmpInfo.getPassword());
            if (newConnection)
            {
                if (newConnection->initClient(&tmpInfo))
                {
                    _vncProject = false;
                    if (_vncConnection) _vncConnection->setDead();
                    _vncConnection = newConnection;
                    connect(_vncConnection, SIGNAL(finished()), this, SLOT(vncFinished()));
                    //TODO: comment beachten !!!!!
                    //vncAllowed = false; // to make sure we recheck if the allowance wasnt revoked in the meantime to prevent
                    // another connection
                    ConsoleLog writeLine(QString("VNC connection attempt succeeded."));
                    MainWindow::getWindow()->getConnectionWindow()->onVNCAdd(this);
                }
                else
                {
                    delete newConnection;
                    // TODO: post on the log console
                    ConsoleLog writeError(QString("VNC connection attempt failed."));
                    _vncRequested = false; // otherwise loop of death
                }
            }
        }
    }
    _vncInitMutex = false;
}

void PVSClient::vncFinished()
{
	disconnect(_vncConnection, SIGNAL(finished()), this, SLOT(vncFinished()));
	delete _vncConnection;
	_vncConnection = NULL;
	_vncPort = 0;
	_vncPasswordReceived = false;
}

QVector<QString> PVSClient::getProcessesVector()
{
	return processesVector;
}

void PVSClient::clearProcessesVector()
{
	processesVector.clear();
}

void PVSClient::processesVectorAdd(QString msg)
{
	if (msg.indexOf("<#>") > 0)
		processesVector.append(msg);
	else if (msg.indexOf("vector ready") == 0)
	{
		emit processVectorReady(true);
	}
}