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

SettingsDialog::SettingsDialog(QWidget *parent) :
      QDialog(parent)
    , ui(new Ui::SettingsDialog)
    , m_deviceDialog(NULL)
{
    ui->setupUi(this);
    this->setWindowTitle("Settings");
    ui->layersNumber->setValue(Settings::getInstance()->getLayersNumber());
    //QString path("Path to root folder of the media tree: /n");
    //path.append(Settings::getInstance()->getPathMedia());
    //ui->mediaPath->setText(path);
    connect(ui->mediaPathButton, SIGNAL(clicked()),
            this, SLOT(changeMediaPath()));
    connect(ui->audioDeviceButton , SIGNAL(clicked()),
            this, SLOT(changeAudioDevice()));
    connect(ui->layersNumber, SIGNAL(valueChanged(int)),
            this, SLOT(layersChanged(int)));
    int layer = 0;
    foreach (const dmxSetting &it, Settings::getInstance()->getDmxSettings()) {
        LayerSettingsWidget *temp = new LayerSettingsWidget(this, layer);
        temp->setUniverse(it.universe);
        temp->setAddress(it.address);
        ui->layersLayout->insertWidget(layer, temp);
        layer++;
    }
}

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

void SettingsDialog::changeMediaPath()
{
    QFileDialog dialog(this);
    dialog.setFileMode(QFileDialog::Directory);
    QStringList fileNames;
    if (!dialog.exec())
        return;
    fileNames = dialog.selectedFiles();
    QString file = fileNames.at(0);
    Settings::getInstance()->setPathMedia(file);
    QString desc = tr("Media Path Changed to: %1").arg(file);
    qInfo("%s", desc.toLatin1().constData());
}

void SettingsDialog::changeAudioDevice()
{
    if (!m_deviceDialog)
    {
        m_deviceDialog = new QDialog( this );
    }
    QLabel *msgLabel = new QLabel;
    AudioWidget *aw = AudioWidget::getInstance();
    QString *msg = new QString;
    for (uint iAvailableDevice = 0; iAvailableDevice < aw->playbackDeviceCount; iAvailableDevice += 1) {
        msg->append(tr("%1 : %2\n").arg(iAvailableDevice).arg(aw->pPlaybackDeviceInfos[iAvailableDevice].name));
    }
    msgLabel->setText(msg->toLatin1());
    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(msgLabel);
    QSpinBox *res = new QSpinBox;
    res->setRange(0, aw->playbackDeviceCount);
    res->setValue(AudioWidget::getInstance()->iChosenDevice);
    layout->addWidget(res);
    QPushButton *closeButton = new QPushButton(tr("Close"));
    connect(closeButton, SIGNAL(clicked()), this, SLOT(closeAudioDeviceDialog()));
    closeButton->setDefault(true);
    layout->addWidget(closeButton);
    m_deviceDialog->setLayout(layout);
    m_deviceDialog->setModal(true);
    m_deviceDialog->show();
}

void SettingsDialog::closeAudioDeviceDialog()
{
    QLayoutItem * const item = m_deviceDialog->layout()->itemAt(1);
    int value = dynamic_cast<QSpinBox *>(item->widget())->value();
    Settings::getInstance()->setAudioDeviceId(value);
    qInfo("device selected: %i", value);
    m_deviceDialog->close();
    emit Settings::getInstance()->audioDeviceChanged(value);
}

void SettingsDialog::layersChanged(int val)
{
    int layers = Settings::getInstance()->getLayersNumber();
    if (val > layers)
    {
      while (val != layers)
      {
         ui->layersLayout->addWidget(new LayerSettingsWidget(this, val));
         layers++;
      }
    } else if (val < layers)
    {
        while (val != layers)
        {
            Settings::getInstance()->removeLayer(val);
            QLayoutItem * const item = ui->layersLayout->itemAt(layers);
            ui->layersLayout->removeItem(item);
            layers--;
        }
    }
    Settings::getInstance()->setLayersNumber(layers);
}