/***************************************************************************
 *   Copyright (C) 2005-2007 by Joris Guisson                              *
 *   joris.guisson@gmail.com                                               *
 *                                                                         *
 *   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.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
 ***************************************************************************/
#ifndef KTHTTPREQUEST_H
#define KTHTTPREQUEST_H

#include <kurl.h>
#include <QTcpSocket>
#include <interfaces/exitoperation.h>
#include <util/constants.h>


namespace kt
{
	
	/**
	 * @author Joris Guisson
	 * 
	 * Just create one, fill in the fields,
	 * connect to the right signals and forget about it. After the reply has been received or
	 * an error occurred, the appropriate signal will be emitted.
	*/
	class HTTPRequest : public bt::ExitOperation
	{
		Q_OBJECT
	public:
		/**
		 * Constructor, set the url and the request header.
		 * @param hdr The http request header
		 * @param payload The payload
		 * @param host The host
		 * @param port THe port
		 * @param verbose Print traffic to the log
		 */
		HTTPRequest(const QString & hdr,const QString & payload,const QString & host,
					bt::Uint16 port,bool verbose);
		virtual ~HTTPRequest();
		
		/**
		 * Open a connetion and send the request.
		 */
		void start();
		
		/**
			Cancel the request, no result signal will be emitted.
		*/
		void cancel();
		
	signals:
		/**
		 * An OK reply was sent.
		 * @param r The sender of the request
		 * @param data The data of the reply
		 */
		void replyOK(HTTPRequest* r,const QString & data);
		
		/**
		 * Anything else but an 200 OK was sent.
		 * @param r The sender of the request
		 * @param data The data of the reply
		 */
		void replyError(HTTPRequest* r,const QString & data);
		
		/**
		 * No reply was sent or an error occurred
		 * @param r The sender of the request
		 * @param msg The error message
		 */
		void error(HTTPRequest* r,const QString & msg);
		
	private slots:
		void onReadyRead();
		void onError(QAbstractSocket::SocketError err);
		void onTimeout();
		void onConnect();
		
	private:
		QTcpSocket* sock;
		QString hdr,payload;
		bool verbose;
		QString host;
		bt::Uint16 port;
		bool finished;
	};

}

#endif
