/*
 * Copyright (c) 2012 Yoann Blein
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#include <boost/bind.hpp>
#include <boost/filesystem.hpp>
#include <boost/smart_ptr/make_shared.hpp>
#include <iostream>

#include <Swiften/Base/Log.h>
#include <Swiften/Elements/Presence.h>
#include <Swiften/Base/foreach.h>
#include <Swiften/Client/Client.h>
#include <Swiften/Elements/DiscoInfo.h>
#include <Swiften/Network/BoostNetworkFactories.h>
#include <Swiften/EventLoop/SimpleEventLoop.h>
#include <Swiften/Client/ClientXMLTracer.h>
#include <Swiften/Disco/ClientDiscoManager.h>
#include <Swiften/ScreenSharing/ScreenSharingManager.h>
#include <Swiften/ScreenSharing/IncomingScreenSharing.h>
#include <Swiften/ScreenSharing/Image.h>

using namespace Swift;

SimpleEventLoop eventLoop;
BoostNetworkFactories networkFactories(&eventLoop);

int exitCode = 2;

static const std::string CLIENT_NAME = "Swiften FT Test";
static const std::string CLIENT_NODE = "http://swift.im";

class ScreenReceiver {
	public:
		ScreenReceiver(const JID& jid, const std::string& password) : jid(jid), password(password) {
			client = new Swift::Client(jid, password, &networkFactories);
			client->onConnected.connect(boost::bind(&ScreenReceiver::handleConnected, this));
			client->onDisconnected.connect(boost::bind(&ScreenReceiver::handleDisconnected, this, _1));
			tracer = new ClientXMLTracer(client);
		}

		~ScreenReceiver() {
			delete tracer;
			client->onDisconnected.disconnect(boost::bind(&ScreenReceiver::handleDisconnected, this, _1));
			client->onConnected.disconnect(boost::bind(&ScreenReceiver::handleConnected, this));
			delete client;
		}

		void start() {
			ClientOptions options;
			options.useTLS = ClientOptions::NeverUseTLS;
			client->connect();
		}

		void stop() {
			//foreach(const IncomingFileTransfer::ref transfer, incomingFileTransfers) {
				//transfer->stop();
			//}
			client->disconnect();
		}

	private:
		void handleConnected() {
			Swift::logging = true;
			client->getScreenSharingManager()->onIncomingScreenSharing.connect(boost::bind(&ScreenReceiver::handleIncomingScreenSharing, this, _1));
			
			DiscoInfo discoInfo;
			discoInfo.addIdentity(DiscoInfo::Identity(CLIENT_NAME, "client", "pc"));
			discoInfo.addFeature(DiscoInfo::JingleFeature);
			discoInfo.addFeature(DiscoInfo::JingleRTPFeature);
			discoInfo.addFeature(DiscoInfo::JingleTransportRawUDPFeature);
			client->getDiscoManager()->setCapsNode(CLIENT_NODE);
			client->getDiscoManager()->setDiscoInfo(discoInfo);
			client->getPresenceSender()->sendPresence(Presence::create());
		}

		void handleIncomingScreenSharing(IncomingScreenSharing::ref sharing) {
			SWIFT_LOG(debug) << "Incoming screen sharing" << std::endl;
			incomingScreenSharings.push_back(sharing);
			sharing->onNewImageReceived.connect(boost::bind(&ScreenReceiver::handleNewImageReceived, this, _1));
			sharing->onFinished.connect(boost::bind(&ScreenReceiver::handleScreenSharingFinished, this));
			sharing->accept();
			//transfer->onFinished.connect(boost::bind(&ScreenReceiver::handleFileTransferFinished, this, _1));
			//transfer->start();
		}

		void handleDisconnected(const boost::optional<ClientError>&) {
			std::cerr << "Error!" << std::endl;
			exit(-1);
		}

		void handleNewImageReceived(const Image& img) {
			const std::vector<uint8_t>& data = img.data;
			std::cout << "Image received: " << (int)data[0] << ", " << (int)data[1] << ", " << (int)data[2] << std::endl;
		}

		void handleScreenSharingFinished() {
			std::cout << "Screen sharing finished" << std::endl;
			exit(0);
		}

		void exit(int code) {
			exitCode = code;
			stop();
			eventLoop.stop();
		}
	
	private:
		JID jid;
		std::string password;
		Client* client;
		ClientXMLTracer* tracer;
		std::vector<IncomingScreenSharing::ref> incomingScreenSharings;
};


int main(int argc, char* argv[]) {
	if (argc != 3) {
		std::cerr << "Usage: " << argv[0] << " <jid> <password>" << std::endl;
		return -1;
	}

	JID jid(argv[1]);
	ScreenReceiver screenReceiver(jid, std::string(argv[2]));
	screenReceiver.start();

	eventLoop.run();

	return exitCode;
}