/*
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version
  2 of the License, or (at your option) any later version.
*/

#include <QMediaPlayer>
#include <QMediaPlaylist>
#include <QKeyEvent>
#include <QCloseEvent>
#include <QSettings>

#include "videoviewer.h"
#include "smglobals.h"

VideoViewer::VideoViewer(QWidget *parent) : QVideoWidget(parent) {
    mPlayer = new QMediaPlayer(this);
    mPlayer->setVideoOutput(this);
    QMediaPlaylist *playList = new QMediaPlaylist;
    mPlayer->setPlaylist(playList);
    SmGlobals::instance()->addGlobalWidget(this);
    readSettings();
}

void VideoViewer::readSettings(){
    QSettings s;
    QRect winSize = s.value("vw/size").toRect();
    setGeometry(winSize);
    bool fullScreen = s.value("vw/fullscreen").toBool();
    setFullScreen(fullScreen);
}

void VideoViewer::writeSettings(){
    QSettings s;
    s.setValue("vw/size", geometry());
    s.setValue("vw/fullscreen", isFullScreen());
}

void VideoViewer::keyPressEvent(QKeyEvent *e){
    int keyNum = e->key();
    if(keyNum == Qt::Key_Q){
        close();
    }else if(keyNum == Qt::Key_F){
        setFullScreen(isFullScreen() ? false : true);
    }else if(keyNum == Qt::Key_Right){
        mPlayer->setPosition(mPlayer->position() + 5000);
    }else if(keyNum == Qt::Key_Left){
        qint64 pos = mPlayer->position();
        mPlayer->setPosition(pos - 5000 < 0 ? 0 : pos - 5000);
    }else if(keyNum == Qt::Key_Up){
        mPlayer->setPosition(mPlayer->position() + 60000);
    }else if(keyNum == Qt::Key_Down){
        qint64 pos = mPlayer->position();
        mPlayer->setPosition(pos - 60000 < 0 ? 0 : pos - 60000);
    }else if(keyNum == Qt::Key_N){
        int mediaCount = mPlayer->playlist()->mediaCount();
        int nextIndex = mPlayer->playlist()->currentIndex() + 1;
        if(nextIndex >= mediaCount){
            nextIndex = 0;
        }
        mPlayer->playlist()->setCurrentIndex(nextIndex);
    }else if(keyNum == Qt::Key_P){
        int mediaCount = mPlayer->playlist()->mediaCount();
        int prevIndex = mPlayer->playlist()->currentIndex() - 1;
        if(prevIndex < 0){
            prevIndex = mediaCount - 1;
        }
        mPlayer->playlist()->setCurrentIndex(prevIndex);
    }else if(keyNum == Qt::Key_M){
        mPlayer->setMuted(mPlayer->isMuted() ? false : true);
    }
}

void VideoViewer::closeEvent(QCloseEvent *e){
    mPlayer->stop();
    writeSettings();
    SmGlobals::instance()->removeGlobalWidget(this);
    deleteLater();
    e->accept();
}