/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: https://library.iserlohn-fortress.net/aqua/smolbote.git
 *
 * SPDX-License-Identifier: GPL-3.0
 */

#include "downloadmanager.h"

QString saveFileName(const QUrl &url, const QString &filename)
{
    if(!filename.isEmpty())
        return filename;

    QString path = url.path();
    QString basename = QFileInfo(path).fileName();

    if(basename.isEmpty())
        basename = "download";

    return basename;
}

DownloadManager::DownloadManager(QObject *parent)
    : QObject(parent)
{
}

QNetworkReply *DownloadManager::download(const QUrl &url, const QString &filename)
{
    auto *file = new QFile(saveFileName(url, filename), this);
    if(!file->open(QIODevice::WriteOnly)) {
        delete file;
        return nullptr;
    }

    QNetworkRequest request(url);
    QNetworkReply *reply = manager.get(request);

    connect(reply, &QNetworkReply::readyRead, this, [reply, file]() {
        file->write(reply->readAll());
    });

    connect(reply, &QNetworkReply::finished, this, [reply, file]() {
        file->write(reply->readAll());
        file->close();
        file->deleteLater();
        reply->deleteLater();
    });

    return reply;
}