#include <QDebug>
#include <QDir>

#include "xmlconfigreader.h"

XMLConfigReader::XMLConfigReader(QObject *parent) :
    QObject(parent)
{
    fileName = QString(PadderCommon::configPath + "/dudeman.xml");
    configFile = new QFile(fileName);
    xml = new QXmlStreamReader();
    joystick = 0;
}

void XMLConfigReader::setJoystick(Joystick *joystick)
{
    this->joystick = joystick;
}

void XMLConfigReader::setFileName(QString filename)
{
    QFile *temp = new QFile(filename);
    if (temp->exists())
    {
        configFile = temp;
    }
    else
    {
        delete temp;
        temp = 0;
    }
}

void XMLConfigReader::configJoystick(Joystick *joystick)
{
    this->joystick = joystick;
    read();
}

bool XMLConfigReader::read()
{
    if (configFile->exists() && joystick)
    {
        xml->clear();

        if (!configFile->isOpen())
        {
            configFile->open(QFile::ReadOnly | QFile::Text);
            xml->setDevice(configFile);
        }

        xml->readNextStartElement();
        if (xml->name() != "joystick")
        {
            xml->raiseError("Root node is not a joystick");
        }
        else
        {
            xml->readNextStartElement();
        }

        while (!xml->atEnd())
        {
            if (xml->name() == "button" && xml->isStartElement())
            {
                int index = xml->attributes().value("index").toString().toInt();
                JoyButton *button = joystick->getJoyButton(index-1);
                if (button)
                {
                    button->readConfig(xml);
                }
                else
                {
                    xml->skipCurrentElement();
                }
            }
            else if (xml->name() == "axis" && xml->isStartElement())
            {
                int index = xml->attributes().value("index").toString().toInt();
                JoyAxis *axis = joystick->getJoyAxis(index-1);
                if (axis)
                {
                    axis->readConfig(xml);
                }
                else
                {
                    xml->skipCurrentElement();
                }
            }
            else if (xml->name() == "dpad" && xml->isStartElement())
            {
                int index = xml->attributes().value("index").toString().toInt();
                JoyDPad *dpad = joystick->getJoyDPad(index-1);
                if (dpad)
                {
                    dpad->readConfig(xml);
                }
                else
                {
                    xml->skipCurrentElement();
                }
            }
            else
            {
                // If none of the above, skip the element
                xml->skipCurrentElement();
            }

            xml->readNextStartElement();
        }

        configFile->close();
    }

    return !xml->error();
}

XMLConfigReader::~XMLConfigReader()
{
    if (configFile)
    {
        if (configFile->isOpen())
        {
            configFile->close();
        }

        delete configFile;
        configFile = 0;
    }

    if (xml)
    {
        delete xml;
        xml = 0;
    }
}