#include "imagedownloader.h"

ImageDownloader::ImageDownloader(QMap<QString, QImage> &cache) {
    m_cache = &cache;
}

void ImageDownloader::downloadImage(const QString &url) {
    QNetworkAccessManager *nam = new QNetworkAccessManager(this);
    bool success = false;
    success = connect(nam,SIGNAL(finished(QNetworkReply*)),this,SLOT(downloadImage_finished(QNetworkReply*)));

    nam->get(QNetworkRequest(QUrl(url)));

    if (success)
        qDebug() << "success";

}

void ImageDownloader::downloadImage_finished(QNetworkReply *reply) {

    reply->open(QIODevice::ReadOnly);

    if(reply->error() == QNetworkReply::NoError) {
        QByteArray b = reply->readAll();
        QImage imgTmp;
        imgTmp.loadFromData(b);
        m_cache->value(reply->url().toString(), imgTmp);
        emit downloadImage_success();
    } else {
        qDebug() << reply->errorString();
    }
}