#include "ByteArrayDownload.h"
#include "MultiMC.h"
#include <QDebug>

ByteArrayDownload::ByteArrayDownload ( QUrl url )
	: Download()
{
	m_url = url;
	m_status = Job_NotStarted;
}

void ByteArrayDownload::start()
{
	qDebug() << "Downloading " << m_url.toString();
	QNetworkRequest request ( m_url );
	auto worker = MMC->qnam();
	QNetworkReply * rep = worker->get ( request );
	
	m_reply = QSharedPointer<QNetworkReply> ( rep, &QObject::deleteLater );
	connect ( rep, SIGNAL ( downloadProgress ( qint64,qint64 ) ), SLOT ( downloadProgress ( qint64,qint64 ) ) );
	connect ( rep, SIGNAL ( finished() ), SLOT ( downloadFinished() ) );
	connect ( rep, SIGNAL ( error ( QNetworkReply::NetworkError ) ), SLOT ( downloadError ( QNetworkReply::NetworkError ) ) );
	connect ( rep, SIGNAL ( readyRead() ), SLOT ( downloadReadyRead() ) );
}

void ByteArrayDownload::downloadProgress ( qint64 bytesReceived, qint64 bytesTotal )
{
	emit progress (index_within_job, bytesReceived, bytesTotal );
}

void ByteArrayDownload::downloadError ( QNetworkReply::NetworkError error )
{
	// error happened during download.
	// TODO: log the reason why
	m_status = Job_Failed;
}

void ByteArrayDownload::downloadFinished()
{
	// if the download succeeded
	if ( m_status != Job_Failed )
	{
		// nothing went wrong...
		m_status = Job_Finished;
		m_data = m_reply->readAll();
		m_reply.clear();
		emit succeeded(index_within_job);
		return;
	}
	// else the download failed
	else
	{
		m_reply.clear();
		emit failed(index_within_job);
		return;
	}
}

void ByteArrayDownload::downloadReadyRead()
{
	// ~_~
}