#include "song.h"

Song::Song(QObject *parent) : QObject(parent), cover(0, 0)
{
    tries = 0;
}

QString Song::getArtist() const
{
    return artist;
}

QString Song::getTitle() const
{
    return title;
}

QUrl Song::getCoverUrl() const
{
    return coverUrl;
}

int Song::getDuration() const
{
    return duration;
}

void Song::setArtist(QString a)
{
    artist = a;
}

void Song::setTitle(QString t)
{
    title = t;
}

void Song::setCoverUrl(QUrl u)
{
    coverUrl = u;
}

void Song::setDuration(int d)
{
    duration = d;
}

void Song::downloadCover()
{
    if(cover.isNull())
    {
        if(mgr != 0)
        {
            tries = 0;
            QNetworkReply* reply = mgr->get(QNetworkRequest(coverUrl));
            connect(reply, SIGNAL(finished()), this, SLOT(onCoverFinished()));
            connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(onCoverError(QNetworkReply::NetworkError)));
        }
    }
    else
        emit coverDownloaded(cover);
}

void Song::setNetworkManager(QNetworkAccessManager *m)
{
    mgr = m;
}

void Song::onCoverFinished()
{
    QNetworkReply* reply = (QNetworkReply*)sender();
    if(cover.loadFromData(reply->readAll()) && !cover.isNull())
        emit coverDownloaded(cover);
}

void Song::onCoverError(QNetworkReply::NetworkError)
{
    if(tries < 3)
    {
        ++tries;
        downloadCover();
    }
}