/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 * class to manage differnt messaging views.

 *

 */

#include "msgviewmanager.h"

#include <HbMainWindow>

#include <HbAction>

#include <xqserviceutil.h>

#include <QSqlQuery>

#include <QSqlError>

#include <HbApplication>

#include "conversationsengine.h"

#include "msglistview.h"

#include "msgunieditorview.h"

#include "msgconversationbaseview.h"

#include "unifiedviewer.h"

#include "draftslistview.h"

#include "msgsettingsview.h"

#include "convergedmessageid.h"

// LOCALIZATION

const qint64 NULL_CONVERSATIONID = -1;

MsgViewManager::MsgViewManager(bool serviceRequest, HbMainWindow* mainWindow, QObject* parent) :

    QObject(parent), mMainWindow(mainWindow), mUniEditor(0), mListView(0), mConversationView(0),

        mUniViewer(0), mDraftsListView(0), mSettingsView(0), mBackAction(0), mServiceRequest(

{

    //creating back action.

    mBackAction = new HbAction(Hb::BackAction, this);

    connect(mBackAction, SIGNAL(triggered()), this, SLOT(onBackAction()));

    //create clv as first view if not a service request.

    if (!mServiceRequest) {

        QVariantList param;

        param << MsgBaseView::CLV;

        param << MsgBaseView::CLV;

        switchView(param);

    }

}

MsgViewManager::~MsgViewManager()

{

    // TODO Auto-generated destructor stub

}

void MsgViewManager::onBackAction()

{

    switch (mCurrentView) {

    case MsgBaseView::CLV:

    {

        if (!mServiceRequest) {

            HbApplication::quit();

        }

        else {

            completeServiceRequest();

        }

        break;

    }

    case MsgBaseView::CV:

    {

        //Save content to drafts before switching to clv

        //marking messages as red in CV.

        mConversationView->markMessagesAsRead();

        //clearing content of cv.

        mConversationView->clearContent();

        if (mServiceRequest) {

            completeServiceRequest();

        }

        else {

            //switch to clv.

            QVariantList param;

            param << MsgBaseView::CLV;

            param << MsgBaseView::CV;

            switchView(param);

        }

        break;

    }

    case MsgBaseView::DLV:

    {

        if (mServiceRequest) {

            completeServiceRequest();

        }

        else {

            //switch to clv.

            QVariantList param;

            param << MsgBaseView::CLV;

            param << MsgBaseView::DLV;

            switchView(param);

        }

        break;

    }

    case MsgBaseView::UNIEDITOR:

    {

        //Save content to drafts before switching to clv

        //switch to clv.

        if (mServiceRequest) {

            completeServiceRequest();

        }

        else {

            //switch to clv.

            QVariantList param;

            param << MsgBaseView::CLV;

            param << MsgBaseView::UNIEDITOR;

            switchView(param);

        }

        break;

    }

    case MsgBaseView::UNIVIEWER:

    {

        break;

    }

    default:

    {

        break;

    }

    }

}

void MsgViewManager::switchView(const QVariantList& data)

{

    int viewId = data.at(0).toInt();

    switch (viewId) {

    case MsgBaseView::DEFAULT:

    {

        handleDefault(data);

        break;

    }

    case MsgBaseView::CLV:

    {

        switchToClv(data);

        break;

    }

    case MsgBaseView::CV:

    {

        switchToCv(data);

        break;

    }

    case MsgBaseView::DLV:

    {

        switchToDlv(data);

        break;

    }

    case MsgBaseView::UNIEDITOR:

    {

        switchToUniEditor(data);

        break;

    }

    case MsgBaseView::UNIVIEWER:

    {

        switchToUniViewer(data);

        break;

    }

    case MsgBaseView::MSGSETTINGS:

    {

        switchToMsgSettings(data);

        break;

    }

    }

}

void MsgViewManager::send(const qint32 contactId, const QString phoneNumber,

    const QString displayName)

{

    qint64 conversationId = ConversationsEngine::instance()-> getConversationIdFromContactId(

        contactId);

    //set mode to viewer, if conversations found else send mode.

    QVariantList param;

    if (conversationId > 0) {

        param << MsgBaseView::CV;

        param << MsgBaseView::SERVICE;

        param << conversationId;

    }

    else {

        ConvergedMessage message;

        ConvergedMessageAddress address;

        address.setAddress(phoneNumber);

        address.setAlias(displayName);

        message.addToRecipient(address);

        QByteArray dataArray;

        QDataStream messageStream(&dataArray, QIODevice::WriteOnly | QIODevice::Append);

        message.serialize(messageStream);

        param << MsgBaseView::UNIEDITOR;

        param << MsgBaseView::SERVICE;

        param << dataArray;

    }

    switchView(param);

    XQServiceUtil::toBackground(false);

}

void MsgViewManager::setServiceRequest(bool request)

{

    mServiceRequest = request;

    mViewAtServiceRequest = mCurrentView;

}

void MsgViewManager::switchToLastSavedView()

{

    QVariantList param;

    switch (mViewAtServiceRequest) {

    case MsgBaseView::CV:

    {

        param << MsgBaseView::CV;

        param << MsgBaseView::SERVICE;

        param << mConversationId;

        break;

    }

    case MsgBaseView::UNIVIEWER:

    {

        param << MsgBaseView::UNIVIEWER;

        param << MsgBaseView::SERVICE;

        break;

    }

    default:

    {

        param << MsgBaseView::CLV;

        param << MsgBaseView::SERVICE;

        break;

    }

    }

    switchView(param);

}

void MsgViewManager::open(qint64 conversationId)

{

    QVariantList param;

    if (conversationId < 0) {

        param << MsgBaseView::CLV;

        param << MsgBaseView::SERVICE;

    }

    else {

        param << MsgBaseView::CV;

        param << MsgBaseView::SERVICE;

        param << conversationId;

    }

    switchView(param);

    XQServiceUtil::toBackground(false);

}

void MsgViewManager::send(QVariant data)

{

    ConvergedMessage message;

    ConvergedMessageAttachmentList attachmentList;

    message.addAttachments(attachmentList);

    QByteArray dataArray;

    QDataStream messageStream(&dataArray, QIODevice::WriteOnly | QIODevice::Append);

    message.serialize(messageStream);

    QVariantList param;

    param << MsgBaseView::UNIEDITOR;

    param << MsgBaseView::SERVICE;

    param << dataArray;

    switchView(param);

    XQServiceUtil::toBackground(false);

}

qint64 MsgViewManager::findConversationId(const QString phoneNum)

{

    return ConversationsEngine::instance()-> getConversationIdFromAddress(phoneNum);

}

//will be depricated in future.

void MsgViewManager::openEditor(QString phoneNumber, QString name)

{

    ConvergedMessage message;

    ConvergedMessageAddress address;

    address.setAddress(phoneNumber);

    address.setAlias(name);

    message.addToRecipient(address);

    QByteArray dataArray;

    QDataStream messageStream(&dataArray, QIODevice::WriteOnly | QIODevice::Append);

    message.serialize(messageStream);

    QVariantList param;

    param << MsgBaseView::UNIEDITOR;

    param << MsgBaseView::SERVICE;

    param << dataArray;

    switchView(param);

    XQServiceUtil::toBackground(false);

}

void MsgViewManager::completeServiceRequest()

{

    mServiceRequest = false;

    XQServiceUtil::toBackground(true);

    switchToLastSavedView();

}

void MsgViewManager::switchToClv(const QVariantList& data)

{

    //switch to CLV.

    mCurrentView = MsgBaseView::CLV;

    mPreviousView = data.at(1).toInt();

    }

    //remove the settings view from main window

    if (mSettingsView) {

        mMainWindow->removeView(mSettingsView);

        mSettingsView->setNavigationAction(mBackAction);

        connect(mBackAction, SIGNAL(triggered()), this, SLOT(onBackAction()), Qt::UniqueConnection);

    }

    if (mConversationView) {

        //clearing content of cv.

        mConversationView->clearContent();

    }

    if (!mListView) {

        mListView = new MsgListView();

        mListView->setNavigationAction(mBackAction);

        connect(mListView, SIGNAL(switchView(const QVariantList&)), this,

            SLOT(switchView(const QVariantList&)));

        mMainWindow->addView(mListView);

    }

    mMainWindow->setCurrentView(mListView);

}

void MsgViewManager::switchToCv(const QVariantList& data)

{

    //switch to CV.

    mCurrentView = MsgBaseView::CV;

    mPreviousView = data.at(1).toInt();

    //delete uni editor.

    if (mUniEditor) {

        mMainWindow->removeView(mUniEditor);

        delete mUniEditor;

        mUniEditor = NULL;

    }

    QVariant var = data.at(2);

    qint64 conversationId;

    if (var.type() == QVariant::String) {

        QString phoneNumber = var.toString();

        conversationId = findConversationId(phoneNumber);

        if (conversationId == NULL_CONVERSATIONID) {

            QVariantList param;

            param << MsgBaseView::CLV;

            param << MsgBaseView::CV;

            switchView(param);

            return;

        }

    }

    else if (var.type() == QVariant::Invalid) {

        // this case comes when a message is deleted from 

        // Unified viewer  set curent view as conversation view 

        // and return