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/*
 * Copyright (c) 2010-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Swift/Controllers/ProfileController.h>

#include <boost/bind.hpp>

#include <Swiften/VCards/VCardManager.h>

#include <Swift/Controllers/Intl.h>
#include <Swift/Controllers/UIEvents/RequestProfileEditorUIEvent.h>
#include <Swift/Controllers/UIEvents/UIEventStream.h>
#include <Swift/Controllers/UIInterfaces/ProfileWindowFactory.h>

namespace Swift {

ProfileController::ProfileController(VCardManager* vcardManager, ProfileWindowFactory* profileWindowFactory, UIEventStream* uiEventStream) : vcardManager(vcardManager), profileWindowFactory(profileWindowFactory), uiEventStream(uiEventStream), available(true), profileWindow(nullptr), gettingVCard(false) {
    uiEventStream->onUIEvent.connect(boost::bind(&ProfileController::handleUIEvent, this, _1));
}

ProfileController::~ProfileController() {
    if (profileWindow) {
        vcardManager->onOwnVCardChanged.disconnect(boost::bind(&ProfileController::handleOwnVCardChanged, this, _1));
        vcardManager->onVCardRetrievalError.disconnect(boost::bind(&ProfileController::handleVCardRetrievalError, this, _1, _2));
        profileWindow->onVCardChangeRequest.disconnect(boost::bind(&ProfileController::handleVCardChangeRequest, this, _1));
        profileWindow->onWindowAboutToBeClosed.disconnect(boost::bind(&ProfileController::handleProfileWindowAboutToBeClosed, this, _1));
    }
    uiEventStream->onUIEvent.disconnect(boost::bind(&ProfileController::handleUIEvent, this, _1));
    delete profileWindow;
}

void ProfileController::handleUIEvent(UIEvent::ref event) {
    if (!std::dynamic_pointer_cast<RequestProfileEditorUIEvent>(event)) {
        return;
    }

    if (!profileWindow) {
        profileWindow = profileWindowFactory->createProfileWindow();
        profileWindow->setEditable(true);
        profileWindow->onVCardChangeRequest.connect(boost::bind(&ProfileController::handleVCardChangeRequest, this, _1));
        profileWindow->onWindowAboutToBeClosed.connect(boost::bind(&ProfileController::handleProfileWindowAboutToBeClosed, this, _1));
        vcardManager->onOwnVCardChanged.connect(boost::bind(&ProfileController::handleOwnVCardChanged, this, _1));
        vcardManager->onVCardRetrievalError.connect(boost::bind(&ProfileController::handleVCardRetrievalError, this, _1, _2));
    }
    gettingVCard = true;
    updateDialogStatus();
    vcardManager->requestOwnVCard();
    profileWindow->setError("");
    profileWindow->show();
}

void ProfileController::handleVCardChangeRequest(VCard::ref vcard) {
    assert(!pendingSetVCardRequest);
    profileWindow->setError("");
    pendingSetVCardRequest = vcardManager->createSetVCardRequest(vcard);
    pendingSetVCardRequest->onResponse.connect(boost::bind(&ProfileController::handleSetVCardResponse, this, _2));
    pendingSetVCardRequest->send();
    updateDialogStatus();
}

void ProfileController::handleSetVCardResponse(ErrorPayload::ref error) {
    pendingSetVCardRequest.reset();
    updateDialogStatus();
    if (error) {
        profileWindow->setVCard(vcardBeforeEdit);
        profileWindow->setError(QT_TRANSLATE_NOOP("", "There was an error publishing your profile data"));
    }
    else {
        profileWindow->setError("");
        profileWindow->hide();
    }
}

void ProfileController::handleVCardRetrievalError(const JID& jid, ErrorPayload::ref /* error */) {
    if ((jid == JID()) && profileWindow) {
        profileWindow->setProcessing(false);
        profileWindow->setEnabled(false);
        profileWindow->setVCard(std::make_shared<VCard>());
        profileWindow->setError(QT_TRANSLATE_NOOP("", "There was an error fetching your current profile data"));
    }
}

void ProfileController::handleOwnVCardChanged(VCard::ref vcard) {
    if (profileWindow) {
        profileWindow->setVCard(vcard);
        vcardBeforeEdit = vcard;
        gettingVCard = false;
        updateDialogStatus();
    }
}

void ProfileController::handleProfileWindowAboutToBeClosed(const JID&) {
    profileWindow = nullptr;
}

void ProfileController::setAvailable(bool b) {
    available = b;
    if (!available) {
        pendingSetVCardRequest.reset();
    }
    updateDialogStatus();
}


void ProfileController::updateDialogStatus() {
    if (profileWindow) {
        profileWindow->setEnabled(available && !gettingVCard && !pendingSetVCardRequest);
        profileWindow->setProcessing(gettingVCard || pendingSetVCardRequest);
    }
}

}