/*

 * 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:Message send functionality handler.

 *

 */

#include "msgsendutil.h"

#include "debugtraces.h"

// plugin loader and plugin interface

#include "unieditorpluginloader.h"

#include "unieditorplugininterface.h"

// general editor utilities

#include "UniEditorGenUtils.h"

#define MSG_SETTINGS_PLUGIN "resource\\qt\\plugins\\controlpanel\\msgsettingsplugin.qtplugin"

//---------------------------------------------------------------

// MsgSendUtil::MsgSendUtil

// Constructor

//--------------------------------------------------------------

MsgSendUtil::MsgSendUtil(QObject* parentObject) :

    QObject(parentObject), mPluginLoader(0), mUniEditorGenUtils(0)

    {

    // Load Plugins for send

    mPluginLoader = new UniEditorPluginLoader(this);

    mPluginLoader->loadPlugins();

    mUniEditorGenUtils = new UniEditorGenUtils();

    }

//---------------------------------------------------------------

// MsgSendUtil::~MsgSendUtil

// Desctructor

//--------------------------------------------------------------

MsgSendUtil::~MsgSendUtil()

    {

    if( mUniEditorGenUtils)

        {

        delete mUniEditorGenUtils;

        mUniEditorGenUtils = NULL;

        }

    }

//---------------------------------------------------------------

// MsgSendUtil::saveToDrafts

// @see header file

//--------------------------------------------------------------

TMsvId MsgSendUtil::saveToDrafts(ConvergedMessage& msg)

    {

    QDEBUG_WRITE("START MsgSendUtil::saveToDraft");

    bool emailOverSmsSupported = false;

    TMsvId id = -1;

    if( checkEmailOverSms(msg, emailOverSmsSupported)

        && checkMaxRecipientCount(msg)

        && checkMaxMsgSizeLimit(msg) )

        {

        UniEditorPluginInterface* pluginInterface =

                        mPluginLoader->getUniEditorPlugin(msg.messageType());

         id = pluginInterface->convertTo(&msg);

        }

    QDEBUG_WRITE("END MsgSendUtil::saveToDraft");

    return id;

    }

//---------------------------------------------------------------

// MsgSendUtil::send

// @see header file

//--------------------------------------------------------------

int MsgSendUtil::send(ConvergedMessage& msg)

{

    QDEBUG_WRITE("START MsgSendUtil::send");

    int retValue = KErrGeneral;

    bool emailOverSmsSupported = false;

    long int id = saveToDrafts(msg);

    if(id != -1)

    {

        checkEmailOverSms(msg, emailOverSmsSupported);

        UniEditorPluginInterface* pluginInterface =

            mPluginLoader->getUniEditorPlugin(msg.messageType());

        if( validateService(pluginInterface, emailOverSmsSupported) )

        {

            pluginInterface->send(id);

            retValue = KErrNone;

        }

        else

        {

            //Delete the entry created in drafts as we are switching to settings

            pluginInterface->deleteDraftsEntry(id);

            retValue = KErrNotFound;

        }

    }

    QDEBUG_WRITE("END MsgSendUtil::send");

    return retValue;

}

//---------------------------------------------------------------

// MsgSendUtil::checkEmailOverSms

// @see header file

//--------------------------------------------------------------

bool MsgSendUtil::checkEmailOverSms(ConvergedMessage& msg, bool& emailOverSmsSupported)

    {

    QDEBUG_WRITE("START MsgSendUtil::checkEmailOverSms");

    if (msg.messageType() == ConvergedMessage::Sms)

        {

        bool emailAddrPresent = false;

        TRAPD(err,emailAddrPresent =

                    mUniEditorGenUtils->VerifyEmailAddressesL(msg.toAddressList()));

        if (err == KErrNone && emailAddrPresent)

            {

            TRAPD(err, emailOverSmsSupported = mUniEditorGenUtils->AcceptEmailAddressesL());

            if (err == KErrNone && !emailOverSmsSupported)

                {

                //TODO if the note is to be shown or if we have to convert the msg type

                msg.setMessageType(ConvergedMessage::Mms);

                }

            }

        }

    // if control is here, then checks are ok

    QDEBUG_WRITE("END MsgSendUtil::checkEmailOverSms");

    return true;

    }

//---------------------------------------------------------------

// MsgSendUtil::checkMaxRecipientCount

// @see header file

//--------------------------------------------------------------

bool MsgSendUtil::checkMaxRecipientCount(ConvergedMessage& msg)

    {

    QDEBUG_WRITE("START MsgSendUtil::checkMaxRecipientCount");

    bool result = true;

    // max recipient count check for sms

    if (msg.messageType() == ConvergedMessage::Sms)

        {

        int maxSmsRecipientsCount = KDefaultSmsRecipients;

        TRAP_IGNORE(maxSmsRecipientsCount = mUniEditorGenUtils->MaxSmsRecipientsL());

        if (msg.toAddressList().count() > maxSmsRecipientsCount)

            {

            //TODO show a note to user to delete some recipients

            //TODO or convert msg to MMS ??

            result = false;

            }

        }

    // max recipient count check for mms

    if (msg.messageType() == ConvergedMessage::Mms)

        {

        int maxMmsRecipientsCount = KDefaultMmsRecipients;

        TRAP_IGNORE(maxMmsRecipientsCount = mUniEditorGenUtils->MaxMmsRecipientsL());

        if ( ( msg.toAddressList().count() 

             + msg.ccAddressList().count()

             + msg.bccAddressList().count() ) > maxMmsRecipientsCount )

            {

            //TODO show a note to user to delete some recipients

            result = false;

            }

        }

    // if control is here, then all checks are ok

    QDEBUG_WRITE("END MsgSendUtil::checkMaxRecipientCount");

    return result;

    }

//---------------------------------------------------------------

// MsgSendUtil::checkMaxMsgSizeLimit

// @see header file

//--------------------------------------------------------------

bool MsgSendUtil::checkMaxMsgSizeLimit(ConvergedMessage& msg)

    {

    QDEBUG_WRITE("START MsgSendUtil::checkMaxMsgSizeLimit");

    bool result = true;

    // msg size limit check for sms

    if (msg.messageType() == ConvergedMessage::Sms)

        {

        int maxSmsMsgSize = KFirstNormalSmsLength;

        TRAP_IGNORE(maxSmsMsgSize = mUniEditorGenUtils->MaxSmsMsgSizeL());        

        if (getSmsMsgSize(msg) > maxSmsMsgSize)

            {

            // TODO: Msg size exceeded. Either convert to MMS?? or stall.

            result = false;

            }

        }

    // msg size limit check for mms

    if (msg.messageType() == ConvergedMessage::Mms)

        {

        int maxMmsMsgSize = KDefaultMaxSize;

        TRAP_IGNORE(maxMmsMsgSize = mUniEditorGenUtils->MaxMmsMsgSizeL());

        if (getMmsMsgSize(msg) > maxMmsMsgSize)

            {

            // TODO: Show note and then give chance to user to delete content

            result = false;

            }

        }

    // if control is here, then all checks are ok

    QDEBUG_WRITE("END MsgSendUtil::checkMaxMsgSizeLimit");

    return result;

    }

//---------------------------------------------------------------

// MsgSendUtil::getSmsMsgSize

// @see header file

//--------------------------------------------------------------

int MsgSendUtil::getSmsMsgSize(ConvergedMessage& msg)

    {

    QDEBUG_WRITE("START MsgSendUtil::getSmsMsgSize");

    int totalMsgSize = 0;

    totalMsgSize += mUniEditorGenUtils->UTF8Size(msg.bodyText()) +

                    mUniEditorGenUtils->UTF8Size(msg.subject());

    bool ret = false;

    TRAP_IGNORE(ret = mUniEditorGenUtils->AcceptEmailAddressesL());

    if (ret)

        {

        int emailAddrLen = longestEmailAddressSize(msg.toAddressList());

        if (emailAddrLen > 0)

            {

            // 1 char is needed by recipient and subject separator

            totalMsgSize += emailAddrLen + 1;

            }

        }

    //TODO: attachment size calculation are missing (e.g vCard/vCal etc)

    QDEBUG_WRITE("END MsgSendUtil::getSmsMsgSize");

    return totalMsgSize;

    }

//---------------------------------------------------------------

// MsgSendUtil::longestEmailAddressSize

// @see header file

//--------------------------------------------------------------

int MsgSendUtil::longestEmailAddressSize(ConvergedMessageAddressList addrList)

    {

    int count = addrList.count();

    int longestEmailSize = 0;

    for(int i=0; i<count; i++)

        {

        longestEmailSize = qMax(longestEmailSize, addrList.at(i)->address().length());

        }

    return longestEmailSize;

    }

//---------------------------------------------------------------

// MsgSendUtil::getMmsMsgSize

// @see header file

//--------------------------------------------------------------

int MsgSendUtil::getMmsMsgSize(ConvergedMessage& msg)

    {

    QDEBUG_WRITE("START MsgSendUtil::getMmsMsgSize");

    int totalMsgSize = 0;

    int textSize = mUniEditorGenUtils->UTF8Size(msg.bodyText());

    totalMsgSize += textSize +

    mUniEditorGenUtils->UTF8Size(msg.subject());

    ConvergedMessageAttachmentList attList = msg.attachments();

    int attCount = attList.count();

    bool hasInlineContent = false;

    for (int i=0; i<attCount; i++)

    {

        if(attList.at(i)->attachmentType() == 

            ConvergedMessageAttachment::EInline)

        {

            hasInlineContent = true;

        }

        int attSize;

        QString mimeType;

        TMsgMediaType mediaType = EMsgMediaUnknown;

        attSize = 0;

        TRAP_IGNORE(mUniEditorGenUtils->getFileInfoL(

            attList.at(i)->filePath(),

            attSize, mimeType, mediaType));

        totalMsgSize += attSize;

    }

    if( hasInlineContent && textSize > 0 )

    {    

        // attachments are present, so we add our estimates

        totalMsgSize += KEstimatedMmsSmilHeaderSize + KEstimatedMimeHeaderSize;

    }

    QDEBUG_WRITE("END MsgSendUtil::getMmsMsgSize");

    return totalMsgSize;

    }

//---------------------------------------------------------------

// MsgSendUtil::validateService

// @see header file

//--------------------------------------------------------------

bool MsgSendUtil::validateService(

        UniEditorPluginInterface* pluginInterface,

        bool emailOverSmsSupported)

    {

    QDEBUG_WRITE("START MsgSendUtil::validateService");

    bool result = true;

    //If settings are missed then show a note and launch settings dialog

    if (!pluginInterface->validateService(emailOverSmsSupported))

        {

        //TODO: show note and launch settings dialog

        result = false;

        }

    // if control is here, then check is ok

    QDEBUG_WRITE("END MsgSendUtil::validateService");

    return result;

    }

// EOF