/*

* Copyright (c) 2010-2014 Kevin Smith

* Licensed under the GNU General Public License v3.

* See Documentation/Licenses/GPLv3.txt for more information.

*/

#include <Swift/Controllers/Chat/ChatControllerBase.h>

#include <sstream>

#include <map>

#include <boost/bind.hpp>

#include <boost/shared_ptr.hpp>

#include <boost/smart_ptr/make_shared.hpp>

#include <boost/date_time/posix_time/posix_time.hpp>

#include <boost/numeric/conversion/cast.hpp>

#include <boost/algorithm/string.hpp>

#include <Swiften/Base/format.h>

#include <Swiften/Base/Path.h>

#include <Swiften/Base/String.h>

#include <Swiften/Client/StanzaChannel.h>

#include <Swiften/Elements/Delay.h>

#include <Swiften/Elements/MUCInvitationPayload.h>

#include <Swiften/Elements/MUCUserPayload.h>

#include <Swiften/Base/foreach.h>

#include <Swiften/Disco/EntityCapsProvider.h>

#include <Swiften/Queries/Requests/GetSecurityLabelsCatalogRequest.h>

#include <Swiften/Avatars/AvatarManager.h>

#include <Swift/Controllers/Intl.h>

#include <Swift/Controllers/XMPPEvents/EventController.h>

#include <Swift/Controllers/UIEvents/JoinMUCUIEvent.h>

#include <Swift/Controllers/UIEvents/UIEventStream.h>

#include <Swift/Controllers/UIInterfaces/ChatWindow.h>

#include <Swift/Controllers/UIInterfaces/ChatWindowFactory.h>

#include <Swift/Controllers/XMPPEvents/MUCInviteEvent.h>

#include <Swift/Controllers/HighlightManager.h>

#include <Swift/Controllers/Highlighter.h>

#include <Swift/Controllers/Chat/AutoAcceptMUCInviteDecider.h>

#include <Swift/Controllers/Chat/ChatMessageParser.h>

namespace Swift {

ChatControllerBase::ChatControllerBase(const JID& self, StanzaChannel* stanzaChannel, IQRouter* iqRouter, ChatWindowFactory* chatWindowFactory, const JID &toJID, PresenceOracle* presenceOracle, AvatarManager* avatarManager, bool useDelayForLatency, UIEventStream* eventStream, EventController* eventController, TimerFactory* timerFactory, EntityCapsProvider* entityCapsProvider, HistoryController* historyController, MUCRegistry* mucRegistry, HighlightManager* highlightManager, boost::shared_ptr<ChatMessageParser> chatMessageParser, AutoAcceptMUCInviteDecider* autoAcceptMUCInviteDecider) : selfJID_(self), stanzaChannel_(stanzaChannel), iqRouter_(iqRouter), chatWindowFactory_(chatWindowFactory), toJID_(toJID), labelsEnabled_(false), presenceOracle_(presenceOracle), avatarManager_(avatarManager), useDelayForLatency_(useDelayForLatency), eventController_(eventController), timerFactory_(timerFactory), entityCapsProvider_(entityCapsProvider), historyController_(historyController), mucRegistry_(mucRegistry), chatMessageParser_(chatMessageParser), autoAcceptMUCInviteDecider_(autoAcceptMUCInviteDecider), eventStream_(eventStream) {

chatWindow_ = chatWindowFactory_->createChatWindow(toJID, eventStream);

chatWindow_->onAllMessagesRead.connect(boost::bind(&ChatControllerBase::handleAllMessagesRead, this));

chatWindow_->onSendMessageRequest.connect(boost::bind(&ChatControllerBase::handleSendMessageRequest, this, _1, _2));

chatWindow_->onLogCleared.connect(boost::bind(&ChatControllerBase::handleLogCleared, this));

entityCapsProvider_->onCapsChanged.connect(boost::bind(&ChatControllerBase::handleCapsChanged, this, _1));

highlighter_ = highlightManager->createHighlighter();

setOnline(stanzaChannel->isAvailable() && iqRouter->isAvailable());

createDayChangeTimer();

}

ChatControllerBase::~ChatControllerBase() {

delete chatWindow_;

}

void ChatControllerBase::handleLogCleared() {

cancelReplaces();

}

ChatWindow* ChatControllerBase::detachChatWindow() {

ChatWindow* chatWindow = chatWindow_;

chatWindow_ = NULL;

return chatWindow;

}

void ChatControllerBase::handleCapsChanged(const JID& jid) {

if (jid.compare(toJID_, JID::WithoutResource) == 0) {

handleBareJIDCapsChanged(jid);

}

}

void ChatControllerBase::setCanStartImpromptuChats(bool supportsImpromptu) {

if (chatWindow_) {

chatWindow_->setCanInitiateImpromptuChats(supportsImpromptu);

}

}

void ChatControllerBase::createDayChangeTimer() {

if (timerFactory_) {

boost::posix_time::ptime now = boost::posix_time::second_clock::local_time();

boost::posix_time::ptime midnight(now.date() + boost::gregorian::days(1));

int millisecondsUntilMidnight = boost::numeric_cast<int>((midnight - now).total_milliseconds());

dateChangeTimer_ = boost::shared_ptr<Timer>(timerFactory_->createTimer(millisecondsUntilMidnight));

dateChangeTimer_->onTick.connect(boost::bind(&ChatControllerBase::handleDayChangeTick, this));

dateChangeTimer_->start();

}

}

void ChatControllerBase::handleDayChangeTick() {

dateChangeTimer_->stop();

boost::posix_time::ptime now = boost::posix_time::second_clock::local_time();

chatWindow_->addSystemMessage(chatMessageParser_->parseMessageBody(str(format(QT_TRANSLATE_NOOP("", "The day is now %1%")) % std::string(boost::posix_time::to_iso_extended_string(now)).substr(0,10))), ChatWindow::DefaultDirection);

dayTicked();

createDayChangeTimer();

}

void ChatControllerBase::setEnabled(bool enabled) {

chatWindow_->setInputEnabled(enabled);

}

void ChatControllerBase::setOnline(bool online) {

setEnabled(online);

}

JID ChatControllerBase::getBaseJID() {

return JID(toJID_.toBare());

}

void ChatControllerBase::setAvailableServerFeatures(boost::shared_ptr<DiscoInfo> info) {

if (iqRouter_->isAvailable() && info->hasFeature(DiscoInfo::SecurityLabelsCatalogFeature)) {

GetSecurityLabelsCatalogRequest::ref request = GetSecurityLabelsCatalogRequest::create(getBaseJID(), iqRouter_);

request->onResponse.connect(boost::bind(&ChatControllerBase::handleSecurityLabelsCatalogResponse, this, _1, _2));

request->send();

} else {

chatWindow_->setSecurityLabelsEnabled(false);

labelsEnabled_ = false;

}

}

void ChatControllerBase::handleAllMessagesRead() {

if (!unreadMessages_.empty()) {

targetedUnreadMessages_.clear();

foreach (boost::shared_ptr<StanzaEvent> stanzaEvent, unreadMessages_) {

stanzaEvent->conclude();

}

unreadMessages_.clear();

chatWindow_->setUnreadMessageCount(0);

onUnreadCountChanged();

}

}

int ChatControllerBase::getUnreadCount() {

return boost::numeric_cast<int>(targetedUnreadMessages_.size());

}

void ChatControllerBase::handleSendMessageRequest(const std::string &body, bool isCorrectionMessage) {

if (!stanzaChannel_->isAvailable() || body.empty()) {

return;

}

boost::shared_ptr<Message> message(new Message());

message->setTo(toJID_);

message->setType(Swift::Message::Chat);

message->setBody(body);

if (labelsEnabled_) {

if (!isCorrectionMessage) {

lastLabel_ = chatWindow_->getSelectedSecurityLabel();

}

SecurityLabelsCatalog::Item labelItem = lastLabel_;

if (labelItem.getLabel()) {

message->addPayload(labelItem.getLabel());

}

}

preSendMessageRequest(message);

boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();

if (useDelayForLatency_) {

message->addPayload(boost::make_shared<Delay>(now, selfJID_));

}

if (isCorrectionMessage) {

message->addPayload(boost::shared_ptr<Replace> (new Replace(lastSentMessageStanzaID_)));

}

message->setID(lastSentMessageStanzaID_ = idGenerator_.generateID());

stanzaChannel_->sendMessage(message);

postSendMessage(message->getBody(), boost::dynamic_pointer_cast<Stanza>(message));

onActivity(message->getBody());

#ifdef SWIFT_EXPERIMENTAL_HISTORY

logMessage(body, selfJID_, toJID_, now, false);

#endif

}

void ChatControllerBase::handleSecurityLabelsCatalogResponse(boost::shared_ptr<SecurityLabelsCatalog> catalog, ErrorPayload::ref error) {

if (catalog && !error) {

if (catalog->getItems().size() == 0) {

chatWindow_->setSecurityLabelsEnabled(false);

labelsEnabled_ = false;

} else {

labelsEnabled_ = true;

chatWindow_->setAvailableSecurityLabels(catalog->getItems());

chatWindow_->setSecurityLabelsEnabled(true);

}

} else {

labelsEnabled_ = false;

chatWindow_->setSecurityLabelsError();

}

}

void ChatControllerBase::showChatWindow() {

chatWindow_->show();

}

void ChatControllerBase::activateChatWindow() {

chatWindow_->activate();

}

std::string ChatControllerBase::addMessage(const std::string& message, const std::string& senderName, bool senderIsSelf, const boost::shared_ptr<SecurityLabel> label, const boost::filesystem::path& avatarPath, const boost::posix_time::ptime& time, const HighlightAction& highlight) {

if (boost::starts_with(message, "/me ")) {

return chatWindow_->addAction(chatMessageParser_->parseMessageBody(String::getSplittedAtFirst(message, ' ').second), senderName, senderIsSelf, label, pathToString(avatarPath), time, highlight);

} else {

return chatWindow_->addMessage(chatMessageParser_->parseMessageBody(message,senderIsSelf), senderName, senderIsSelf, label, pathToString(avatarPath), time, highlight);

}

}

void ChatControllerBase::replaceMessage(const std::string& message, const std::string& id, bool senderIsSelf, const boost::posix_time::ptime& time, const HighlightAction& highlight) {

if (boost::starts_with(message, "/me ")) {

chatWindow_->replaceWithAction(chatMessageParser_->parseMessageBody(String::getSplittedAtFirst(message, ' ').second), id, time, highlight);

} else {

chatWindow_->replaceMessage(chatMessageParser_->parseMessageBody(message,senderIsSelf), id, time, highlight);

}

}

bool ChatControllerBase::isFromContact(const JID& from) {

return from.toBare() == toJID_.toBare();

}

void ChatControllerBase::handleIncomingMessage(boost::shared_ptr<MessageEvent> messageEvent) {

preHandleIncomingMessage(messageEvent);

if (messageEvent->isReadable() && !messageEvent->getConcluded()) {

unreadMessages_.push_back(messageEvent);

if (messageEvent->targetsMe()) {

targetedUnreadMessages_.push_back(messageEvent);

}

}

boost::shared_ptr<Message> message = messageEvent->getStanza();

std::string body = message->getBody();

HighlightAction highlight;

if (message->isError()) {

if (!message->getTo().getResource().empty()) {

std::string errorMessage = str(format(QT_TRANSLATE_NOOP("", "Couldn't send message: %1%")) % getErrorMessage(message->getPayload<ErrorPayload>()));

chatWindow_->addErrorMessage(chatMessageParser_->parseMessageBody(errorMessage));

}

}

else if (messageEvent->getStanza()->getPayload<MUCInvitationPayload>()) {

handleMUCInvitation(messageEvent->getStanza());

return;

}

else if (messageEvent->getStanza()->getPayload<MUCUserPayload>() && messageEvent->getStanza()->getPayload<MUCUserPayload>()->getInvite()) {

handleMediatedMUCInvitation(messageEvent->getStanza());

return;

}

else {

if (!messageEvent->isReadable()) {

return;

}

showChatWindow();

JID from = message->getFrom();

std::vector<boost::shared_ptr<Delay> > delayPayloads = message->getPayloads<Delay>();

for (size_t i = 0; useDelayForLatency_ && i < delayPayloads.size(); i++) {

if (!delayPayloads[i]->getFrom()) {

continue;

}

boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();

std::ostringstream s;

s << "The following message took " << (now - delayPayloads[i]->getStamp()).total_milliseconds() / 1000.0 << " seconds to be delivered from " << delayPayloads[i]->getFrom()->toString() << ".";

chatWindow_->addSystemMessage(chatMessageParser_->parseMessageBody(std::string(s.str())), ChatWindow::DefaultDirection);

}

boost::shared_ptr<SecurityLabel> label = message->getPayload<SecurityLabel>();

// Determine the timestamp

boost::posix_time::ptime timeStamp = boost::posix_time::microsec_clock::universal_time();

boost::optional<boost::posix_time::ptime> messageTimeStamp = getMessageTimestamp(message);

if (messageTimeStamp) {

timeStamp = *messageTimeStamp;

}

onActivity(body);

// Highlight

if (!isIncomingMessageFromMe(message)) {

highlight = highlighter_->findAction(body, senderDisplayNameFromMessage(from));

}

boost::shared_ptr<Replace> replace = message->getPayload<Replace>();

if (replace) {

std::string body = message->getBody();

// Should check if the user has a previous message

std::map<JID, std::string>::iterator lastMessage;

lastMessage = lastMessagesUIID_.find(from);

if (lastMessage != lastMessagesUIID_.end()) {

replaceMessage(body, lastMessagesUIID_[from], isIncomingMessageFromMe(message), timeStamp, highlight);

}

}

else {

lastMessagesUIID_[from] = addMessage(body, senderDisplayNameFromMessage(from), isIncomingMessageFromMe(message), label, avatarManager_->getAvatarPath(from), timeStamp, highlight);

}

logMessage(body, from, selfJID_, timeStamp, true);

}

chatWindow_->show();

chatWindow_->setUnreadMessageCount(boost::numeric_cast<int>(unreadMessages_.size()));

onUnreadCountChanged();

postHandleIncomingMessage(messageEvent, highlight);

}

std::string ChatControllerBase::getErrorMessage(boost::shared_ptr<ErrorPayload> error) {

std::string defaultMessage = QT_TRANSLATE_NOOP("", "Error sending message");

if (!error->getText().empty()) {

return error->getText();

}

else {

switch (error->getCondition()) {

case ErrorPayload::BadRequest: return QT_TRANSLATE_NOOP("", "Bad request");

case ErrorPayload::Conflict: return QT_TRANSLATE_NOOP("", "Conflict");

case ErrorPayload::FeatureNotImplemented: return QT_TRANSLATE_NOOP("", "This feature is not implemented");

case ErrorPayload::Forbidden: return QT_TRANSLATE_NOOP("", "Forbidden");

case ErrorPayload::Gone: return QT_TRANSLATE_NOOP("", "Recipient can no longer be contacted");

case ErrorPayload::InternalServerError: return QT_TRANSLATE_NOOP("", "Internal server error");

case ErrorPayload::ItemNotFound: return QT_TRANSLATE_NOOP("", "Item not found");

case ErrorPayload::JIDMalformed: return QT_TRANSLATE_NOOP("", "JID Malformed");

case ErrorPayload::NotAcceptable: return QT_TRANSLATE_NOOP("", "Message was rejected");

case ErrorPayload::NotAllowed: return QT_TRANSLATE_NOOP("", "Not allowed");

case ErrorPayload::NotAuthorized: return QT_TRANSLATE_NOOP("", "Not authorized");

case ErrorPayload::PaymentRequired: return QT_TRANSLATE_NOOP("", "Payment is required");

case ErrorPayload::RecipientUnavailable: return QT_TRANSLATE_NOOP("", "Recipient is unavailable");

case ErrorPayload::Redirect: return QT_TRANSLATE_NOOP("", "Redirect");

case ErrorPayload::RegistrationRequired: return QT_TRANSLATE_NOOP("", "Registration required");

case ErrorPayload::RemoteServerNotFound: return QT_TRANSLATE_NOOP("", "Recipient's server not found");

case ErrorPayload::RemoteServerTimeout: return QT_TRANSLATE_NOOP("", "Remote server timeout");

case ErrorPayload::ResourceConstraint: return QT_TRANSLATE_NOOP("", "The server is low on resources");

case ErrorPayload::ServiceUnavailable: return QT_TRANSLATE_NOOP("", "The service is unavailable");

case ErrorPayload::SubscriptionRequired: return QT_TRANSLATE_NOOP("", "A subscription is required");

case ErrorPayload::UndefinedCondition: return QT_TRANSLATE_NOOP("", "Undefined condition");

case ErrorPayload::UnexpectedRequest: return QT_TRANSLATE_NOOP("", "Unexpected request");

}

}

assert(false);

return defaultMessage;

}

void ChatControllerBase::handleGeneralMUCInvitation(MUCInviteEvent::ref event) {

unreadMessages_.push_back(event);

chatWindow_->show();

chatWindow_->setUnreadMessageCount(boost::numeric_cast<int>(unreadMessages_.size()));

onUnreadCountChanged();

chatWindow_->addMUCInvitation(senderDisplayNameFromMessage(event->getInviter()), event->getRoomJID(), event->getReason(), event->getPassword(), event->getDirect(), event->getImpromptu());

eventController_->handleIncomingEvent(event);

}

void ChatControllerBase::handleMUCInvitation(Message::ref message) {

MUCInvitationPayload::ref invite = message->getPayload<MUCInvitationPayload>();

if (autoAcceptMUCInviteDecider_->isAutoAcceptedInvite(message->getFrom(), invite)) {

eventStream_->send(boost::make_shared<JoinMUCUIEvent>(invite->getJID(), boost::optional<std::string>(), boost::optional<std::string>(), false, false, true));

} else {

MUCInviteEvent::ref inviteEvent = boost::make_shared<MUCInviteEvent>(toJID_, invite->getJID(), invite->getReason(), invite->getPassword(), true, invite->getIsImpromptu());

handleGeneralMUCInvitation(inviteEvent);

}

}

void ChatControllerBase::handleMediatedMUCInvitation(Message::ref message) {

MUCUserPayload::Invite invite = *message->getPayload<MUCUserPayload>()->getInvite();

JID from = message->getFrom();

std::string reason;

if (!invite.reason.empty()) {

reason = invite.reason;

}

std::string password;

if (message->getPayload<MUCUserPayload>()->getPassword()) {

password = *message->getPayload<MUCUserPayload>()->getPassword();

}

MUCInviteEvent::ref inviteEvent = boost::make_shared<MUCInviteEvent>(invite.from, from, reason, password, false, false);

handleGeneralMUCInvitation(inviteEvent);

}

}