/*  smplayer, GUI front-end for mplayer.
    Copyright (C) 2006-2012 Ricardo Villalba <rvm@users.sourceforge.net>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "simplehttp.h"
#include <QUrl>

SimpleHttp::SimpleHttp( QObject * parent ) : QHttp(parent)
{
	http_get_id = -1;

	connect( this, SIGNAL(requestFinished(int, bool)),
             this, SLOT(httpRequestFinished(int, bool)) );

	connect( this, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),
             this, SLOT(readResponseHeader(const QHttpResponseHeader &)) );
}

SimpleHttp::~SimpleHttp() {
}

void SimpleHttp::download(const QString & url) {
	qDebug("SimpleHttp::download: %s", url.toLatin1().constData());

	downloaded_text.clear();

	QUrl u(url);
	setHost( u.host() );

	/*
	qDebug("u.path: %s", u.path().toLatin1().constData());
	qDebug("u.query: %s", u.encodedQuery().constData());
	*/

	QString p = u.path();
	if (!u.encodedQuery().isEmpty()) p += "?" + u.encodedQuery();

	if (user_agent.isEmpty()) {
		http_get_id = get( p );
	} else {
		QHttpRequestHeader header("GET", p);
		header.setValue("Host", u.host());
		header.setValue("User-Agent", user_agent);
		http_get_id = request(header);
	}

	emit connecting(u.host());
}

void SimpleHttp::readResponseHeader(const QHttpResponseHeader &responseHeader) {
	qDebug("SimpleHttp::readResponseHeader: statusCode: %d", responseHeader.statusCode());

	if (responseHeader.statusCode() == 301)  {
		QString new_url = responseHeader.value("Location");
		qDebug("SimpleHttp::readResponseHeader: Location: '%s'", new_url.toLatin1().constData());
		download(new_url);
	}
	else
	if (responseHeader.statusCode() == 302)  {
		QString location = responseHeader.value("Location");
		qDebug("SimpleHttp::readResponseHeader: Location: '%s'", location.toLatin1().constData());
		/* http_get_id = get( location ); */
		download(location);
	}
	else
	if (responseHeader.statusCode() != 200) {
		qDebug("SimpleHttp::readResponseHeader: error: '%s'", responseHeader.reasonPhrase().toLatin1().constData());
		emit downloadFailed(responseHeader.reasonPhrase());
		abort();
	}
}

void SimpleHttp::httpRequestFinished(int request_id, bool error) {
	qDebug("SimpleHttp::httpRequestFinished: http_get_id: %d request_id: %d, error: %d", http_get_id, request_id, error);

	if (request_id != http_get_id) return;

	downloaded_text += readAll();

	//qDebug("downloaded_text: '%s'", downloaded_text.constData());

	if ((!error) && (!downloaded_text.isEmpty())) {
		emit downloadFinished(downloaded_text);
	}
}

#include "moc_simplehttp.cpp"