#include <QFileDialog>
#include <QFile>
#include <QXmlStreamReader>
#include <QMessageBox>

#include "settingsdialog.h"
#include "ui_settingsdialog.h"

settingsDialog::settingsDialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::settingsDialog)
{
    ui->setupUi(this);
    readXML();
    connect(ui->choosePathButton,SIGNAL(clicked(QAbstractButton*)), this, SLOT(changeMediaPath()));
}

settingsDialog::~settingsDialog()
{
    delete ui;
}

void settingsDialog::readXML() {
//    QFile xmlFile("conf.xml");
    QFile* xmlFile = new QFile("conf.xlm");
    Q_CHECK_PTR(xmlFile);
    if (!xmlFile->open(QIODevice::ReadOnly | QIODevice::Text)) {
        QMessageBox::critical(NULL,"Load XML File Problem",
                              "Couldn't open configuration file",
                              QMessageBox::Ok);
        //return;
    }
    QXmlStreamReader* xmlReader = new QXmlStreamReader(xmlFile);
    //Parse the XML until we reach end of it
    while(!xmlReader->atEnd() && !xmlReader->hasError()) {
        // Read next element
        QXmlStreamReader::TokenType token = xmlReader->readNext();
        //If token is just StartDocument - go to next
        if(token == QXmlStreamReader::StartDocument) {
            continue;
        }
        //If token is StartElement - read it
        if(token == QXmlStreamReader::StartElement) {
            if(xmlReader->name() == "windowSettings") {
                int version = xmlReader->attributes().value("fileVersion").toLocal8Bit().toInt();
                if(version == 1) {
                    ui->winpositionx->setValue(xmlReader->attributes().value("XPos").toLocal8Bit().toInt());
                    ui->winpositiony->setValue(xmlReader->attributes().value("YPos").toLocal8Bit().toInt());
                    ui->winsizex->setValue(xmlReader->attributes().value("XSize").toLocal8Bit().toInt());
                    ui->winsizey->setValue(xmlReader->attributes().value("YSize").toLocal8Bit().toInt());
                    ui->fps->setValue(xmlReader->attributes().value("FPS").toLocal8Bit().toInt());
                    continue;
                }
            }
            int counter = 0;
            if(xmlReader->name() == "dmxSettings") {
              int version = xmlReader->attributes().value("fileVersion").toLocal8Bit().toInt();
              if(version == 1) {
//                worker->m_layersNumber = xmlReader->attributes().value("layersNumber").toLocal8Bit().toInt();
                emit pathChanged(xmlReader->attributes().value("path").toLocal8Bit());
                continue;
              }
            }
//            if (worker->m_layersNumber > MAX_SOURCE_DMX) {
//                worker->m_layersNumber = MAX_SOURCE_DMX;
//            }
            QString add = "layer";
            add.append(QString("%1").arg(counter));
            if((xmlReader->name() == add)/* && (counter < worker->m_layersNumber)*/) {
                emit dmxChanged(counter, (xmlReader->attributes().value("dmx").toLocal8Bit().toInt() - 1),xmlReader->attributes().value("universe").toLocal8Bit().toInt());
            }
            counter++;
        }
    }
    if(xmlReader->hasError()) {
        QMessageBox::critical(NULL,"xmlFile.xml Parse Error",xmlReader->errorString(), QMessageBox::Ok);
    }
    //close reader and flush file
    xmlReader->clear();
    xmlFile->close();

    delete xmlReader;
    delete xmlFile;
}

void settingsDialog::changeMediaPath(){
    QFileDialog dialog(this);
    dialog.setFileMode(QFileDialog::Directory);
    QStringList fileNames;
    if (!dialog.exec())
        return;
    fileNames = dialog.selectedFiles();
    QString file = fileNames.at(0);
    ui->currentPath->clear();
    ui->currentPath->setText(file);
    emit pathChanged(file);
    //    m_olaInterface->setPath(file); //Setear en olaInterface
}