#include "medialibrary.h"


MediaLibrary *MediaLibrary::_instance = 0;

MediaLibrary *MediaLibrary::getInstance() {

    if (_instance == 0) {
        _instance = new MediaLibrary();
        Q_CHECK_PTR(_instance);
    }
    return _instance;
}

MediaLibrary::MediaLibrary(QObject *parent) :
    QObject(parent)
//  ,m_media(new QList<MediaFolder>)
  , m_pathmedia()
{
//    initMediaLibrary();
    qDebug("Init MediaLibrary");
}

/** Initializes the media library and the media information
 * from the path to media in m_pathmedia
 */

void MediaLibrary::initMediaLibrary() {
    QDir dir;
    if (!dir.cd(m_pathmedia)) {
        qWarning("initMediaLibrary| Can not cd to the path: ");
        qWarning(m_pathmedia.toAscii().constData());
        return;
    }
    m_media = new QList<MediaFolder>;
    dir.setFilter(QDir::Dirs | QDir::NoSymLinks | QDir::NoDotAndDotDot);
    QFileInfoList filelist = dir.entryInfoList();
    dir.setFilter(QDir::Files);
    QFileInfo fileInfo;
    struct MediaFolder mediai;
    for (int i = 0; i < filelist.size(); ++i) {
        fileInfo = filelist.at(i);
        QString name = fileInfo.absoluteFilePath();
        dir.cd(fileInfo.baseName());
        mediai.m_Id = i;
        mediai.m_Name = name;
        mediai.m_ElementCount = dir.count();
        mediai.m_MediaInformation = getMediaInformation(dir);
        dir.cdUp();
        m_media->append(mediai);
    }
}

/**
 * This set every media file included in one library/folder
 */
QList<MediaFile> MediaLibrary::getMediaInformation(QDir dir)
{
    QList<MediaFile> mediaList;
    MediaFile mediainf;
    dir.setFilter(QDir::Files);
    QFileInfoList filelist = dir.entryInfoList();
    QFileInfo fileInfo;
    for (int i = 0; i < filelist.size(); ++i) {
        fileInfo = filelist.at(i);
        // Update the data base with the new file
        mediainf.Number = i;
        mediainf.MediaName = fileInfo.absoluteFilePath();
        mediainf.MediaLength = 1000; // ¿?¿?¿?¿?
        mediaList.append(mediainf);
    }
    return mediaList;
}

/** Selects one media path from the library
 *
 */

QString MediaLibrary::requestNewFile(int folder, int file){
    QString newfile;
    if (m_pathmedia.isNull()) {
        qWarning("Path not set yet");
        return newfile;
    }
    if (m_media == NULL) {
        qWarning("media not setup");
        return newfile;
    }
    if (folder < m_media->size()) {
        if (file < m_media->at(folder).m_MediaInformation.size()) {
           newfile = m_media->at(folder).m_MediaInformation.at(file).MediaName;
         } else {
           qDebug("MediaLibrary::requestNewFile(): Requested file is greater than files in library");
         }
       } else {
         qDebug("MediaLibrary::requestNewFile(): Requested folder is greater than media libraries");
       }
    return newfile;
}