/*
 * Copyright (c) 2010-2012 Kevin Smith
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#include <Swift/Controllers/MainController.h>

#include <boost/bind.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/smart_ptr/make_shared.hpp>
#include <string>
#include <stdlib.h>

#include <Swiften/Base/format.h>
#include <Swiften/Base/Algorithm.h>
#include <Swift/Controllers/Intl.h>
#include <Swift/Controllers/UIInterfaces/UIFactory.h>
#include "Swiften/Network/TimerFactory.h"
#include "Swift/Controllers/BuildVersion.h"
#include "Swiften/Client/Storages.h"
#include "Swiften/VCards/VCardManager.h"
#include "Swift/Controllers/Chat/UserSearchController.h"
#include "Swift/Controllers/Chat/ChatsManager.h"
#include "Swift/Controllers/XMPPEvents/EventController.h"
#include "Swift/Controllers/EventWindowController.h"
#include "Swift/Controllers/UIInterfaces/LoginWindow.h"
#include "Swift/Controllers/UIInterfaces/LoginWindowFactory.h"
#include "Swift/Controllers/UIInterfaces/MainWindow.h"
#include "Swift/Controllers/Chat/MUCController.h"
#include "Swiften/Client/NickResolver.h"
#include "Swift/Controllers/Roster/RosterController.h"
#include "Swift/Controllers/SoundEventController.h"
#include "Swift/Controllers/SoundPlayer.h"
#include "Swift/Controllers/StatusTracker.h"
#include "Swift/Controllers/SystemTray.h"
#include "Swift/Controllers/SystemTrayController.h"
#include "Swift/Controllers/XMLConsoleController.h"
#include <Swift/Controllers/HistoryController.h>
#include <Swift/Controllers/HistoryViewController.h>
#include "Swift/Controllers/FileTransferListController.h"
#include "Swift/Controllers/UIEvents/UIEventStream.h"
#include "Swift/Controllers/PresenceNotifier.h"
#include "Swift/Controllers/EventNotifier.h"
#include "Swift/Controllers/Storages/StoragesFactory.h"
#include "SwifTools/Dock/Dock.h"
#include "SwifTools/Notifier/TogglableNotifier.h"
#include "Swiften/Base/foreach.h"
#include "Swiften/Client/Client.h"
#include "Swiften/Presence/PresenceSender.h"
#include "Swiften/Elements/ChatState.h"
#include "Swiften/Elements/Presence.h"
#include "Swiften/Elements/VCardUpdate.h"
#include "Swift/Controllers/Settings/SettingsProvider.h"
#include "Swiften/Elements/DiscoInfo.h"
#include "Swiften/Disco/CapsInfoGenerator.h"
#include "Swiften/Disco/GetDiscoInfoRequest.h"
#include "Swiften/Disco/ClientDiscoManager.h"
#include "Swiften/VCards/GetVCardRequest.h"
#include "Swiften/StringCodecs/SHA1.h"
#include "Swiften/StringCodecs/Hexify.h"
#include "Swift/Controllers/UIEvents/RequestChatUIEvent.h"
#include "Swift/Controllers/UIEvents/JoinMUCUIEvent.h"
#include "Swift/Controllers/Storages/CertificateStorageFactory.h"
#include "Swift/Controllers/Storages/CertificateStorageTrustChecker.h"
#include "Swiften/Network/NetworkFactories.h"
#include <Swift/Controllers/ProfileController.h>
#include <Swift/Controllers/ContactEditController.h>
#include <Swift/Controllers/XMPPURIController.h>
#include "Swift/Controllers/AdHocManager.h"
#include <SwifTools/Idle/IdleDetector.h>
#include <Swift/Controllers/FileTransfer/FileTransferOverview.h>
#include <Swiften/FileTransfer/FileTransferManager.h>
#include <Swiften/Client/ClientXMLTracer.h>
#include <Swift/Controllers/SettingConstants.h>
#include <Swiften/Client/StanzaChannel.h>

namespace Swift {

static const std::string CLIENT_NAME = "Swift";
static const std::string CLIENT_NODE = "http://swift.im";


MainController::MainController(
		EventLoop* eventLoop,
		NetworkFactories* networkFactories,
		UIFactory* uiFactories,
		SettingsProvider* settings,
		SystemTray* systemTray,
		SoundPlayer* soundPlayer,
		StoragesFactory* storagesFactory,
		CertificateStorageFactory* certificateStorageFactory,
		Dock* dock,
		Notifier* notifier,
		URIHandler* uriHandler,
		IdleDetector* idleDetector,
		bool useDelayForLatency) :
			eventLoop_(eventLoop),
			networkFactories_(networkFactories),
			uiFactory_(uiFactories),
			storagesFactory_(storagesFactory),
			certificateStorageFactory_(certificateStorageFactory),
			settings_(settings),
			uriHandler_(uriHandler),
			idleDetector_(idleDetector),
			loginWindow_(NULL) ,
			useDelayForLatency_(useDelayForLatency),
			ftOverview_(NULL) {
	storages_ = NULL;
	certificateStorage_ = NULL;
	statusTracker_ = NULL;
	presenceNotifier_ = NULL;
	eventNotifier_ = NULL;
	rosterController_ = NULL;
	chatsManager_ = NULL;
	eventWindowController_ = NULL;
	profileController_ = NULL;
	contactEditController_ = NULL;
	userSearchControllerChat_ = NULL;
	userSearchControllerAdd_ = NULL;
	adHocManager_ = NULL;
	quitRequested_ = false;
	clientInitialized_ = false;
	offlineRequested_ = false;

	timeBeforeNextReconnect_ = -1;
	dock_ = dock;
	uiEventStream_ = new UIEventStream();

	notifier_ = new TogglableNotifier(notifier);
	notifier_->setPersistentEnabled(settings_->getSetting(SettingConstants::SHOW_NOTIFICATIONS));
	eventController_ = new EventController();
	eventController_->onEventQueueLengthChange.connect(boost::bind(&MainController::handleEventQueueLengthChange, this, _1));

	systemTrayController_ = new SystemTrayController(eventController_, systemTray);
	loginWindow_ = uiFactory_->createLoginWindow(uiEventStream_);
	loginWindow_->setShowNotificationToggle(!notifier->isExternallyConfigured());
	soundEventController_ = new SoundEventController(eventController_, soundPlayer, settings);

	xmppURIController_ = new XMPPURIController(uriHandler_, uiEventStream_);

	std::string selectedLoginJID = settings_->getSetting(SettingConstants::LAST_LOGIN_JID);
	bool loginAutomatically = settings_->getSetting(SettingConstants::LOGIN_AUTOMATICALLY);
	std::string cachedPassword;
	std::string cachedCertificate;
	bool eagle = settings_->getSetting(SettingConstants::FORGET_PASSWORDS);
	if (!eagle) {
		foreach (std::string profile, settings->getAvailableProfiles()) {
			ProfileSettingsProvider profileSettings(profile, settings);
			std::string password = profileSettings.getStringSetting("pass");
			std::string certificate = profileSettings.getStringSetting("certificate");
			std::string jid = profileSettings.getStringSetting("jid");
			loginWindow_->addAvailableAccount(jid, password, certificate);
			if (jid == selectedLoginJID) {
				cachedPassword = password;
				cachedCertificate = certificate;
			}
		}
		loginWindow_->selectUser(selectedLoginJID);
		loginWindow_->setLoginAutomatically(loginAutomatically);
	}


	loginWindow_->onLoginRequest.connect(boost::bind(&MainController::handleLoginRequest, this, _1, _2, _3, _4, _5, _6));
	loginWindow_->onPurgeSavedLoginRequest.connect(boost::bind(&MainController::handlePurgeSavedLoginRequest, this, _1));
	loginWindow_->onCancelLoginRequest.connect(boost::bind(&MainController::handleCancelLoginRequest, this));
	loginWindow_->onQuitRequest.connect(boost::bind(&MainController::handleQuitRequest, this));

	idleDetector_->setIdleTimeSeconds(settings->getSetting(SettingConstants::IDLE_TIMEOUT));
	idleDetector_->onIdleChanged.connect(boost::bind(&MainController::handleInputIdleChanged, this, _1));

	xmlConsoleController_ = new XMLConsoleController(uiEventStream_, uiFactory_);
	historyController_ = new HistoryController();
	historyViewController_ = new HistoryViewController(uiEventStream_, uiFactory_);

	fileTransferListController_ = new FileTransferListController(uiEventStream_, uiFactory_);

	settings_->onSettingChanged.connect(boost::bind(&MainController::handleSettingChanged, this, _1));

	if (loginAutomatically) {
		profileSettings_ = new ProfileSettingsProvider(selectedLoginJID, settings_);
		/* FIXME: deal with autologin with a cert*/
		handleLoginRequest(selectedLoginJID, cachedPassword, cachedCertificate, CertificateWithKey::ref(), true, true);
	} else {
		profileSettings_ = NULL;
	}
}

MainController::~MainController() {
	idleDetector_->onIdleChanged.disconnect(boost::bind(&MainController::handleInputIdleChanged, this, _1));

	purgeCachedCredentials();
	//setManagersOffline();
	eventController_->disconnectAll();

	resetClient();
	delete fileTransferListController_;
	delete xmlConsoleController_;
	delete historyController_;
	delete xmppURIController_;
	delete soundEventController_;
	delete systemTrayController_;
	delete eventController_;
	delete notifier_;
	delete uiEventStream_;
}

void MainController::purgeCachedCredentials() {
	safeClear(password_);
}

void MainController::resetClient() {
	purgeCachedCredentials();
	resetCurrentError();
	resetPendingReconnects();
	vCardPhotoHash_.clear();
	delete contactEditController_;
	contactEditController_ = NULL;
	delete profileController_;
	profileController_ = NULL;
	delete eventWindowController_;
	eventWindowController_ = NULL;
	delete chatsManager_;
	chatsManager_ = NULL;
	delete ftOverview_;
	ftOverview_ = NULL;
	delete rosterController_;
	rosterController_ = NULL;
	delete eventNotifier_;
	eventNotifier_ = NULL;
	delete presenceNotifier_;
	presenceNotifier_ = NULL;
	delete certificateStorage_;
	certificateStorage_ = NULL;
	delete storages_;
	storages_ = NULL;
	delete statusTracker_;
	statusTracker_ = NULL;
	delete profileSettings_;
	profileSettings_ = NULL;
	delete userSearchControllerChat_;
	userSearchControllerChat_ = NULL;
	delete userSearchControllerAdd_;
	userSearchControllerAdd_ = NULL;
	delete adHocManager_;
	adHocManager_ = NULL;
	clientInitialized_ = false;
}

void MainController::handleSettingChanged(const std::string& settingPath) {
	if (settingPath == SettingConstants::SHOW_NOTIFICATIONS.getKey()) {
		notifier_->setPersistentEnabled(settings_->getSetting(SettingConstants::SHOW_NOTIFICATIONS));
	}
}

void MainController::resetPendingReconnects() {
	timeBeforeNextReconnect_ = -1;
	if (reconnectTimer_) {
		reconnectTimer_->stop();
		reconnectTimer_.reset();
	}
	resetCurrentError();
}

void MainController::resetCurrentError() {
	if (lastDisconnectError_) {
		lastDisconnectError_->conclude();
		lastDisconnectError_ = boost::shared_ptr<ErrorEvent>();
	}
}

void MainController::handleConnected() {
	boundJID_ = client_->getJID();
	resetCurrentError();
	resetPendingReconnects();

	if (settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
		purgeCachedCredentials();
	}

	bool freshLogin = rosterController_ == NULL;
	myStatusLooksOnline_ = true;
	if (freshLogin) {
		profileController_ = new ProfileController(client_->getVCardManager(), uiFactory_, uiEventStream_);
		srand(time(NULL));
		int randomPort = 10000 + rand() % 10000;
		client_->getFileTransferManager()->startListeningOnPort(randomPort);
		ftOverview_ = new FileTransferOverview(client_->getFileTransferManager());
		fileTransferListController_->setFileTransferOverview(ftOverview_);
		rosterController_ = new RosterController(jid_, client_->getRoster(), client_->getAvatarManager(), uiFactory_, client_->getNickManager(), client_->getNickResolver(), client_->getPresenceOracle(), client_->getSubscriptionManager(), eventController_, uiEventStream_, client_->getIQRouter(), settings_, client_->getEntityCapsProvider(), ftOverview_);
		rosterController_->onChangeStatusRequest.connect(boost::bind(&MainController::handleChangeStatusRequest, this, _1, _2));
		rosterController_->onSignOutRequest.connect(boost::bind(&MainController::signOut, this));
		rosterController_->getWindow()->onShowCertificateRequest.connect(boost::bind(&MainController::handleShowCertificateRequest, this));

		contactEditController_ = new ContactEditController(rosterController_, client_->getVCardManager(), uiFactory_, uiEventStream_);

		chatsManager_ = new ChatsManager(jid_, client_->getStanzaChannel(), client_->getIQRouter(), eventController_, uiFactory_, uiFactory_, client_->getNickResolver(), client_->getPresenceOracle(), client_->getPresenceSender(), uiEventStream_, uiFactory_, useDelayForLatency_, networkFactories_->getTimerFactory(), client_->getMUCRegistry(), client_->getEntityCapsProvider(), client_->getMUCManager(), uiFactory_, profileSettings_, ftOverview_, client_->getRoster(), !settings_->getSetting(SettingConstants::REMEMBER_RECENT_CHATS), settings_, historyController_);
		
		client_->onMessageReceived.connect(boost::bind(&ChatsManager::handleIncomingMessage, chatsManager_, _1));
		chatsManager_->setAvatarManager(client_->getAvatarManager());

		eventWindowController_ = new EventWindowController(eventController_, uiFactory_);

		loginWindow_->morphInto(rosterController_->getWindow());

		DiscoInfo discoInfo;
		discoInfo.addIdentity(DiscoInfo::Identity(CLIENT_NAME, "client", "pc"));
		discoInfo.addFeature(DiscoInfo::ChatStatesFeature);
		discoInfo.addFeature(DiscoInfo::SecurityLabelsFeature);
		discoInfo.addFeature(DiscoInfo::MessageCorrectionFeature);
#ifdef SWIFT_EXPERIMENTAL_FT
		discoInfo.addFeature(DiscoInfo::JingleFeature);
		discoInfo.addFeature(DiscoInfo::JingleFTFeature);
		discoInfo.addFeature(DiscoInfo::JingleTransportsIBBFeature);
		discoInfo.addFeature(DiscoInfo::JingleTransportsS5BFeature);
#endif
		discoInfo.addFeature(DiscoInfo::MessageDeliveryReceiptsFeature);
		client_->getDiscoManager()->setCapsNode(CLIENT_NODE);
		client_->getDiscoManager()->setDiscoInfo(discoInfo);

		userSearchControllerChat_ = new UserSearchController(UserSearchController::StartChat, jid_, uiEventStream_, client_->getVCardManager(), uiFactory_, client_->getIQRouter(), rosterController_);
		userSearchControllerAdd_ = new UserSearchController(UserSearchController::AddContact, jid_, uiEventStream_, client_->getVCardManager(), uiFactory_, client_->getIQRouter(), rosterController_);
		adHocManager_ = new AdHocManager(JID(boundJID_.getDomain()), uiFactory_, client_->getIQRouter(), uiEventStream_, rosterController_->getWindow());
	}
	loginWindow_->setIsLoggingIn(false);

	client_->requestRoster();

	GetDiscoInfoRequest::ref discoInfoRequest = GetDiscoInfoRequest::create(JID(boundJID_.getDomain()), client_->getIQRouter());
	discoInfoRequest->onResponse.connect(boost::bind(&MainController::handleServerDiscoInfoResponse, this, _1, _2));
	discoInfoRequest->send();

	client_->getVCardManager()->requestOwnVCard();
	
	rosterController_->setEnabled(true);
	rosterController_->getWindow()->setStreamEncryptionStatus(client_->isStreamEncrypted());
	profileController_->setAvailable(true);
	contactEditController_->setAvailable(true);
	/* Send presence later to catch all the incoming presences. */
	sendPresence(statusTracker_->getNextPresence());
	/* Enable chats last of all, so rejoining MUCs has the right sent presence */
	chatsManager_->setOnline(true);

}

void MainController::handleEventQueueLengthChange(int count) {
	dock_->setNumberOfPendingMessages(count);
}

void MainController::reconnectAfterError() {
	if (reconnectTimer_) {
		reconnectTimer_->stop();
	}
	performLoginFromCachedCredentials();
}

void MainController::handleChangeStatusRequest(StatusShow::Type show, const std::string &statusText) {
	boost::shared_ptr<Presence> presence(new Presence());
	if (show == StatusShow::None) {
		// Note: this is misleading, None doesn't mean unavailable on the wire.
		presence->setType(Presence::Unavailable);
		resetPendingReconnects();
		myStatusLooksOnline_ = false;
		offlineRequested_ = true;
	}
	else {
		offlineRequested_ = false;
		presence->setShow(show);
	}
	presence->setStatus(statusText);
	statusTracker_->setRequestedPresence(presence);
	if (presence->getType() != Presence::Unavailable) {
		profileSettings_->storeInt("lastShow", presence->getShow());
		profileSettings_->storeString("lastStatus", presence->getStatus());
	}
	if (presence->getType() != Presence::Unavailable && !client_->isAvailable()) {
		performLoginFromCachedCredentials();
	} else {
		sendPresence(presence);
	}
}

void MainController::sendPresence(boost::shared_ptr<Presence> presence) {
	rosterController_->getWindow()->setMyStatusType(presence->getShow());
	rosterController_->getWindow()->setMyStatusText(presence->getStatus());
	systemTrayController_->setMyStatusType(presence->getShow());
	notifier_->setTemporarilyDisabled(presence->getShow() == StatusShow::DND);

	// Add information and send
	if (!vCardPhotoHash_.empty()) {
		presence->updatePayload(boost::make_shared<VCardUpdate>(vCardPhotoHash_));
	}
	client_->getPresenceSender()->sendPresence(presence);
	if (presence->getType() == Presence::Unavailable) {
		logout();
	}
}

void MainController::handleInputIdleChanged(bool idle) {
	if (!statusTracker_) {
		//Haven't logged in yet.
		return;
	}

	if (settings_->getSetting(SettingConstants::IDLE_GOES_OFFLINE)) {
		if (idle) {
			logout();
		}
	}
	else {
		if (idle) {
			if (statusTracker_->goAutoAway()) {
				if (client_ && client_->isAvailable()) {
					sendPresence(statusTracker_->getNextPresence());
				}
			}
		} else {
			if (statusTracker_->goAutoUnAway()) {
				if (client_ && client_->isAvailable()) {
					sendPresence(statusTracker_->getNextPresence());
				}
			}
		}
	}
}

void MainController::handleShowCertificateRequest() {
	std::vector<Certificate::ref> chain = client_->getStanzaChannel()->getPeerCertificateChain();
	rosterController_->getWindow()->openCertificateDialog(chain);
}

void MainController::handleLoginRequest(const std::string &username, const std::string &password, const std::string& certificatePath, CertificateWithKey::ref certificate, bool remember, bool loginAutomatically) {
	jid_ = JID(username);
	if (!jid_.isValid() || jid_.getNode().empty()) {
		loginWindow_->setMessage(QT_TRANSLATE_NOOP("", "User address invalid. User address should be of the form 'alice@wonderland.lit'"));
		loginWindow_->setIsLoggingIn(false);
	} else {
		loginWindow_->setMessage("");
		loginWindow_->setIsLoggingIn(true);
		profileSettings_ = new ProfileSettingsProvider(username, settings_);
		if (!settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
			profileSettings_->storeString("jid", username);
			profileSettings_->storeString("certificate", certificatePath);
			profileSettings_->storeString("pass", (remember || loginAutomatically) ? password : "");
			settings_->storeSetting(SettingConstants::LAST_LOGIN_JID, username);
			settings_->storeSetting(SettingConstants::LOGIN_AUTOMATICALLY, loginAutomatically);
			loginWindow_->addAvailableAccount(profileSettings_->getStringSetting("jid"), profileSettings_->getStringSetting("pass"), profileSettings_->getStringSetting("certificate"));
		}

		password_ = password;
		certificate_ = certificate;
		performLoginFromCachedCredentials();
	}
}

void MainController::handlePurgeSavedLoginRequest(const std::string& username) {
	settings_->removeProfile(username);
	loginWindow_->removeAvailableAccount(username);
}

void MainController::performLoginFromCachedCredentials() {
	if (settings_->getSetting(SettingConstants::FORGET_PASSWORDS) && password_.empty()) {
		/* Then we can't try to login again. */
		return;
	}
	/* If we logged in with a bare JID, and we have a full bound JID, re-login with the
	 * bound JID to try and keep dynamically assigned resources */
	JID clientJID = jid_;
	if (boundJID_.isValid() && jid_.isBare() && boundJID_.toBare() == jid_) {
		clientJID = boundJID_;
	}

	if (!statusTracker_) {
		statusTracker_  = new StatusTracker();
	}
	if (!clientInitialized_) {
		storages_ = storagesFactory_->createStorages(jid_.toBare());
		certificateStorage_ = certificateStorageFactory_->createCertificateStorage(jid_.toBare());
		certificateTrustChecker_ = new CertificateStorageTrustChecker(certificateStorage_);

		client_ = boost::make_shared<Swift::Client>(clientJID, createSafeByteArray(password_.c_str()), networkFactories_, storages_);
		clientInitialized_ = true;
		client_->setCertificateTrustChecker(certificateTrustChecker_);
		client_->onDataRead.connect(boost::bind(&XMLConsoleController::handleDataRead, xmlConsoleController_, _1));
		client_->onDataWritten.connect(boost::bind(&XMLConsoleController::handleDataWritten, xmlConsoleController_, _1));
		client_->onDisconnected.connect(boost::bind(&MainController::handleDisconnected, this, _1));
		client_->onConnected.connect(boost::bind(&MainController::handleConnected, this));

		client_->setSoftwareVersion(CLIENT_NAME, buildVersion);

		client_->getVCardManager()->onVCardChanged.connect(boost::bind(&MainController::handleVCardReceived, this, _1, _2));
		presenceNotifier_ = new PresenceNotifier(client_->getStanzaChannel(), notifier_, client_->getMUCRegistry(), client_->getAvatarManager(), client_->getNickResolver(), client_->getPresenceOracle(), networkFactories_->getTimerFactory());
		presenceNotifier_->onNotificationActivated.connect(boost::bind(&MainController::handleNotificationClicked, this, _1));
		eventNotifier_ = new EventNotifier(eventController_, notifier_, client_->getAvatarManager(), client_->getNickResolver());
		eventNotifier_->onNotificationActivated.connect(boost::bind(&MainController::handleNotificationClicked, this, _1));
		if (certificate_ && !certificate_->isNull()) {
			client_->setCertificate(certificate_);
		}
		boost::shared_ptr<Presence> presence(new Presence());
		presence->setShow(static_cast<StatusShow::Type>(profileSettings_->getIntSetting("lastShow", StatusShow::Online)));
		presence->setStatus(profileSettings_->getStringSetting("lastStatus"));
		statusTracker_->setRequestedPresence(presence);
	} else {
		/* In case we're in the middle of another login, make sure they don't overlap */
		client_->disconnect();
	}
	systemTrayController_->setConnecting();
	if (rosterController_) {
		rosterController_->getWindow()->setConnecting();
	}
	ClientOptions clientOptions;
	bool eagle = settings_->getSetting(SettingConstants::FORGET_PASSWORDS);
	clientOptions.forgetPassword = eagle;
	clientOptions.useTLS = eagle ? ClientOptions::RequireTLS : ClientOptions::UseTLSWhenAvailable;
	client_->connect(clientOptions);
}

void MainController::handleDisconnected(const boost::optional<ClientError>& error) {
	if (rosterController_) {
		rosterController_->getWindow()->setStreamEncryptionStatus(false);
	}
	if (settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
		purgeCachedCredentials();
	}
	if (quitRequested_) {
		resetClient();
		loginWindow_->quit();
	}
	else if (error) {
		std::string message;
		std::string certificateErrorMessage;
		bool forceSignout = false;
		switch(error->getType()) {
			case ClientError::UnknownError: message = QT_TRANSLATE_NOOP("", "Unknown Error"); break;
			case ClientError::DomainNameResolveError: message = QT_TRANSLATE_NOOP("", "Unable to find server"); break;
			case ClientError::ConnectionError: message = QT_TRANSLATE_NOOP("", "Error connecting to server"); break;
			case ClientError::ConnectionReadError: message = QT_TRANSLATE_NOOP("", "Error while receiving server data"); break;
			case ClientError::ConnectionWriteError: message = QT_TRANSLATE_NOOP("", "Error while sending data to the server"); break;
			case ClientError::XMLError: message = QT_TRANSLATE_NOOP("", "Error parsing server data"); break;
			case ClientError::AuthenticationFailedError: message = QT_TRANSLATE_NOOP("", "Login/password invalid"); break;
			case ClientError::CompressionFailedError: message = QT_TRANSLATE_NOOP("", "Error while compressing stream"); break;
			case ClientError::ServerVerificationFailedError: message = QT_TRANSLATE_NOOP("", "Server verification failed"); break;
			case ClientError::NoSupportedAuthMechanismsError: message = QT_TRANSLATE_NOOP("", "Authentication mechanisms not supported"); break;
			case ClientError::UnexpectedElementError: message = QT_TRANSLATE_NOOP("", "Unexpected response"); break;
			case ClientError::ResourceBindError: message = QT_TRANSLATE_NOOP("", "Error binding resource"); break;
			case ClientError::SessionStartError: message = QT_TRANSLATE_NOOP("", "Error starting session"); break;
			case ClientError::StreamError: message = QT_TRANSLATE_NOOP("", "Stream error"); break;
			case ClientError::TLSError: message = QT_TRANSLATE_NOOP("", "Encryption error"); break;
			case ClientError::ClientCertificateLoadError: message = QT_TRANSLATE_NOOP("", "Error loading certificate (Invalid password?)"); break;
			case ClientError::ClientCertificateError: message = QT_TRANSLATE_NOOP("", "Certificate not authorized"); break;
			case ClientError::CertificateCardRemoved: message = QT_TRANSLATE_NOOP("", "Certificate card removed"); forceSignout = true; break;

			case ClientError::UnknownCertificateError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Unknown certificate"); break;
			case ClientError::CertificateExpiredError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate has expired"); break;
			case ClientError::CertificateNotYetValidError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate is not yet valid"); break;
			case ClientError::CertificateSelfSignedError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate is self-signed"); break;
			case ClientError::CertificateRejectedError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate has been rejected"); break;
			case ClientError::CertificateUntrustedError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate is not trusted"); break;
			case ClientError::InvalidCertificatePurposeError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate cannot be used for encrypting your connection"); break;
			case ClientError::CertificatePathLengthExceededError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate path length constraint exceeded"); break;
			case ClientError::InvalidCertificateSignatureError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Invalid certificate signature"); break;
			case ClientError::InvalidCAError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Invalid Certificate Authority"); break;
			case ClientError::InvalidServerIdentityError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate does not match the host identity"); break;
			case ClientError::RevokedError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Certificate has been revoked"); break;
			case ClientError::RevocationCheckFailedError: certificateErrorMessage = QT_TRANSLATE_NOOP("", "Unable to determine certificate revocation state"); break;
		}
		bool forceReconnectAfterCertificateTrust = false;
		if (!certificateErrorMessage.empty()) {
			std::vector<Certificate::ref> certificates = certificateTrustChecker_->getLastCertificateChain();
			if (!certificates.empty() && loginWindow_->askUserToTrustCertificatePermanently(certificateErrorMessage, certificates)) {
				certificateStorage_->addCertificate(certificates[0]);
				forceReconnectAfterCertificateTrust = true;
			}
			else {
				message = QT_TRANSLATE_NOOP("", "Certificate error");
			}
		}

		if (forceReconnectAfterCertificateTrust && settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
			forceReconnectAfterCertificateTrust = false;
			forceSignout = true;
			message = QT_TRANSLATE_NOOP("", "Re-enter credentials and retry");
		}

		if (forceReconnectAfterCertificateTrust) {
			performLoginFromCachedCredentials();
		}
		else if (forceSignout || !rosterController_) { //hasn't been logged in yet or permanent error
			signOut();
			loginWindow_->setMessage(message);
			loginWindow_->setIsLoggingIn(false);
		} else {
			logout();
			if (settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
				message = str(format(QT_TRANSLATE_NOOP("", "Disconnected from %1%: %2%. To reconnect, Sign Out and provide your password again.")) % jid_.getDomain() % message);
			} else {
				if (!offlineRequested_) {
					setReconnectTimer();
				}
				if (lastDisconnectError_) {
					message = str(format(QT_TRANSLATE_NOOP("", "Reconnect to %1% failed: %2%. Will retry in %3% seconds.")) % jid_.getDomain() % message % boost::lexical_cast<std::string>(timeBeforeNextReconnect_));
					lastDisconnectError_->conclude();
				} else {
					message = str(format(QT_TRANSLATE_NOOP("", "Disconnected from %1%: %2%.")) % jid_.getDomain() % message);
				}
				lastDisconnectError_ = boost::make_shared<ErrorEvent>(JID(jid_.getDomain()), message);
				eventController_->handleIncomingEvent(lastDisconnectError_);
			}
		}
	}
	else if (!rosterController_) { //hasn't been logged in yet
		loginWindow_->setIsLoggingIn(false);
	}
}

void MainController::setReconnectTimer() {
	if (timeBeforeNextReconnect_ < 0) {
		timeBeforeNextReconnect_ = 1;
	} else {
		timeBeforeNextReconnect_ = timeBeforeNextReconnect_ >= 150 ? 300 : timeBeforeNextReconnect_ * 2; // Randomly selected by roll of a die, as required by 3920bis
	}
	if (reconnectTimer_) {
		reconnectTimer_->stop();
	}
	reconnectTimer_ = networkFactories_->getTimerFactory()->createTimer(timeBeforeNextReconnect_ * 1000);
	reconnectTimer_->onTick.connect(boost::bind(&MainController::reconnectAfterError, this));
	reconnectTimer_->start();
}

void MainController::handleCancelLoginRequest() {
	signOut();
}

void MainController::signOut() {
	if (settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
		purgeCachedCredentials();
	}
	eventController_->clear();
	logout();
	loginWindow_->loggedOut();
	resetClient();
}

void MainController::logout() {
	if (settings_->getSetting(SettingConstants::FORGET_PASSWORDS)) {
		purgeCachedCredentials();
	}
	systemTrayController_->setMyStatusType(StatusShow::None);
	if (clientInitialized_ /*&& client_->isAvailable()*/) {
		client_->disconnect();
	}
	if (rosterController_ && myStatusLooksOnline_) {
		rosterController_->getWindow()->setMyStatusType(StatusShow::None);
		rosterController_->getWindow()->setMyStatusText("");
		myStatusLooksOnline_ = false;
	}
	setManagersOffline();
}

void MainController::setManagersOffline() {
	if (chatsManager_) {
		chatsManager_->setOnline(false);
	}
	if (rosterController_) {
		rosterController_->setEnabled(false);
	}
	if (profileController_) {
		profileController_->setAvailable(false);
	}
	if (contactEditController_) {
		contactEditController_->setAvailable(false);
	}
}

void MainController::handleServerDiscoInfoResponse(boost::shared_ptr<DiscoInfo> info, ErrorPayload::ref error) {
	if (!error) {
		chatsManager_->setServerDiscoInfo(info);
		adHocManager_->setServerDiscoInfo(info);
	}
}

void MainController::handleVCardReceived(const JID& jid, VCard::ref vCard) {
	if (!jid.equals(jid_, JID::WithoutResource) || !vCard || vCard->getPhoto().empty()) {
		return;
	}
	std::string hash = Hexify::hexify(SHA1::getHash(vCard->getPhoto()));
	if (hash != vCardPhotoHash_) {
		vCardPhotoHash_ = hash;
		if (client_ && client_->isAvailable()) {
			sendPresence(statusTracker_->getNextPresence());
		}
	}
}

void MainController::handleNotificationClicked(const JID& jid) {
	assert(chatsManager_);
	if (clientInitialized_) {
		if (client_->getMUCRegistry()->isMUC(jid)) {
			uiEventStream_->send(boost::make_shared<JoinMUCUIEvent>(jid));
		}
		else {
			uiEventStream_->send(boost::shared_ptr<UIEvent>(new RequestChatUIEvent(jid)));
		}
	}
}

void MainController::handleQuitRequest() {
	if (client_ && client_->isActive()) {
		quitRequested_ = true;
		client_->disconnect();
	}
	else {
		resetClient();
		loginWindow_->quit();
	}
}

}