#include "common.h"

#include <QFileOpenEvent>
#include <QtCore/QLocale>
#include <QtCore/QTranslator>
#include <QtCore/QCoreApplication>
#include <QtDebug>

QOptions get_common_options()
{
    static QOptions ops = QOptions().addDescription("Options for QtAV players")
            .add("common options")
            ("help,h", "print this")
            ("-gl", "auto", "OpenGL backend for Qt>=5.4(windows). can be 'auto', 'desktop', 'angle' and 'software'")
            ("x", 0, "")
            ("y", 0, "y")
            ("-width", 800, "width of player")
            ("height", 450, "height of player")
            ("fullscreen", "fullscreen")
            ("deocder", "FFmpeg", "use a given decoder")
            ("decoders,-vd", "cuda;vaapi;vda;dxva;cedarv;ffmpeg", "decoder name list in priority order seperated by ';'")
            ("file,f", "", "file or url to play")
            ("language", "system", "language on UI. can be 'system', 'none' and locale name e.g. zh_CN")
            ;
    return ops;
}

void load_qm(const QStringList &names, const QString& lang)
{
    if (lang.isEmpty() || lang.toLower() == "none")
        return;
    QString l(lang);
    if (l.toLower() == "system")
        l = QLocale::system().name();
    QStringList qms(names);
    qms << "QtAV" << "qt";
    foreach(QString qm, qms) {
        QTranslator *ts = new QTranslator(qApp);
        QString path = qApp->applicationDirPath() + "/i18n/" + qm + "_" + l;
        //qDebug() << "loading qm: " << path;
        if (ts->load(path)) {
            qApp->installTranslator(ts);
        } else {
            path = ":/i18n/" + qm + "_" + l;
            //qDebug() << "loading qm: " << path;
            if (ts->load(path))
                qApp->installTranslator(ts);
            else
                delete ts;
        }
    }
    QTranslator qtts;
    if (qtts.load("qt_" + QLocale::system().name()))
        qApp->installTranslator(&qtts);
}

void set_opengl_backend(const QString& glopt, const QString &appname)
{
    QString gl = appname.toLower();
    if (gl.indexOf("-desktop") > 0)
        gl = "desktop";
    else if (gl.indexOf("-es") > 0 || gl.indexOf("-angle") > 0) //-es.exe
        gl = "es";
    else if (gl.indexOf("-sw") > 0 || gl.indexOf("-software") > 0)
        gl = "software";
    else
        gl = glopt.toLower();
#if QT_VERSION >= QT_VERSION_CHECK(5, 4, 0)
    if (gl == "es")
        QCoreApplication::setAttribute(Qt::AA_UseOpenGLES);
    else if (gl == "desktop")
        QCoreApplication::setAttribute(Qt::AA_UseDesktopOpenGL);
    else if (gl == "software")
        QCoreApplication::setAttribute(Qt::AA_UseSoftwareOpenGL);
#endif
}

AppEventFilter::AppEventFilter(QObject *player, QObject *parent)
    : QObject(parent)
    , m_player(player)
{}

bool AppEventFilter::eventFilter(QObject *obj, QEvent *ev)
{
    if (obj != qApp)
        return false;
    if (ev->type() != QEvent::FileOpen)
        return false;
    QFileOpenEvent *foe = static_cast<QFileOpenEvent*>(ev);
    if (m_player)
        QMetaObject::invokeMethod(m_player, "play", Q_ARG(QUrl, QUrl(foe->url())));
    return true;
}