#include "audiowidget.h"


AudioWidget::AudioWidget() :
     m_layout(new QHBoxLayout())
  ,  m_refreshUi(new QTimer(this))
{

    for (int i= 0; i < Settings::getInstance()->getLayersNumber(); i++ ) {
        m_layout->insertWidget(i, new AudioLayerWidget(this, tr("Layer %1").arg(i + 1)));
     }
    setLayout(m_layout);
    connect(m_refreshUi, SIGNAL(timeout()), this, SLOT(refreshUi()));
    m_refreshUi->start(UI_REFRESH_TIME);
}

bool AudioWidget::startEngine(int id)
{
    return (m_mae.startEngine(id));
}

bool AudioWidget::startEngine()
{
    return (m_mae.startEngine(Settings::getInstance()->getAudioDeviceId()));
}

void AudioWidget::stopEngine()
{
    m_mae.stopEngine();
}

void AudioWidget::mediaLoaded(int layer, QString file)
{
    ma_result result;

    if (m_currentMedia[layer].compare(file) == 0 ) {
        return;
    }
    if (!QFile::exists(file)) {
        qWarning("Can not access to file %s", file.toLatin1().constData());
        return;
    }
    result = m_mae.loadMedia(layer, file.toLatin1().data());
    if (result != MA_SUCCESS) {
        qWarning("can not open file %s", file.toLatin1().constData());
        return;
    }
    m_currentMedia[layer] = file;
    float pLength = m_mae.getDuration(layer);
    qInfo("File loaded: %s - Duration: %f secs", file.toLatin1().constData(), pLength);
    m_mae.printFormatInfo(layer);
    QLayoutItem * const item = m_layout->itemAt(layer);
    dynamic_cast<AudioLayerWidget *>(item->widget())->fileLoaded(file);
    dynamic_cast<AudioLayerWidget *>(item->widget())->durationChanged(pLength);
}

void AudioWidget::volChanged(int layer, qreal vol) {
    m_mae.volChanged(layer, vol);
    QLayoutItem * const item = m_layout->itemAt(layer);
    dynamic_cast<AudioLayerWidget *>(item->widget())->setVol(vol);
}

void AudioWidget::panChanged(int layer, qreal pan) {
    m_mae.panChanged(layer, pan);
    QLayoutItem * const item = m_layout->itemAt(layer);
    dynamic_cast<AudioLayerWidget *>(item->widget())->setPan(pan);
}

void AudioWidget::pitchChanged(int layer, qreal pitch) {
    m_mae.pitchChanged(layer, pitch);
    QLayoutItem * const item = m_layout->itemAt(layer);
    dynamic_cast<AudioLayerWidget *>(item->widget())->setPitch(pitch);
}

void AudioWidget::playbackChanged(int layer, Status status)
{
    m_mae.playbackChanged(layer, status);
    QLayoutItem * const item = m_layout->itemAt(layer);
    dynamic_cast<AudioLayerWidget *>(item->widget())->setPlaybackStatus(status);
}

void AudioWidget::refreshUi() {
    for (int i= 0; i < Settings::getInstance()->getLayersNumber(); i++ ) {
        QLayoutItem * const item = m_layout->itemAt(i);
        AudioLayerWidget *aw = dynamic_cast<AudioLayerWidget *>(item->widget());
        Status s = aw->getPlaybackStatus();
        if (s == Status::PlayingOnce || s == Status::PlayingLoop) {
                aw->refreshUi(m_mae.getCursor(i));
        }
    }
}