/*
* Copyright (c) 2010 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: Definition of AgendaEventViewerPrivate class
*
*/

// System includes.
#include <QFile>
#include <QDir>

// User includes.
#include <agendautil.h>
#include <agendaentry.h>
#include "agendaeventviewer_p.h"
#include "agendaeventviewer.h"
#include "agendaeventview.h"

/*!
	\class AgendaEventViewerPrivate

	Private class implementation of AgendaEventViewer.It is responsible for
	launching the agenda event viewer.
 */


/*!
	Constructor

	\param agendaUtil Pointer to AgendaUtil.
	\param parent Pointer to QObject.
 */
AgendaEventViewerPrivate::AgendaEventViewerPrivate(
		AgendaUtil *agendaUtil, QObject *parent)
: QObject(parent),mShowEventViewById(false),mShowEventViewByFileHandle(false),mFileName(NULL),mAction(AgendaEventViewer::ActionNothing)
{

	// Get the q-pointer.from parent
	q_ptr = static_cast<AgendaEventViewer *> (parent);

	// Check for agendaUtil sent by client. If null agendaUtil will be
	// created and owned by AgendaEventViewerPrivate
	if (!agendaUtil) {
		mAgendaUtil = new AgendaUtil(parent);
		mViewerOwnsAgendaUtil = true;
	} else {
		mAgendaUtil = agendaUtil;
		mViewerOwnsAgendaUtil = false;
	}

	// Register for the entry change signal when the same entry is updated
	// by other application.This is to handle the db conflict changes.
	connect(
			mAgendaUtil, SIGNAL(entriesChanged(QList<ulong> )),
			this, SLOT(handleEntriesChanged(QList<ulong> )));
	
	// Register for the calenInstance view creation sucessfully
	connect(
	        mAgendaUtil, SIGNAL(entryViewCreationCompleted(int)),
	        this, SLOT(viewCreationCompleted(int)));

}

/*!
	Destructor.
 */
AgendaEventViewerPrivate::~AgendaEventViewerPrivate()
{

	if (mViewerOwnsAgendaUtil) {
		delete mAgendaUtil;
		mAgendaUtil = 0;
	}

}

/*!
	Launches the event viewer.Id is used for fetching
	the calendar entry information.

	\param id Local Uid of the calendar entry to be viewed
 */
void AgendaEventViewerPrivate::view(const ulong id, 
                                    AgendaEventViewer::Actions action)
{
	
	AgendaEntry entry = mAgendaUtil->fetchById(id);
	
	if (entry.isNull()) {
        // save the entries , to show the entry once instances are created
        // if entry is null exit ,later  call back comes in viewCreationCompleted 
	    mAction = action;
        mId =id;
        //to avoid view creation multiple times
        mShowEventViewById = true;
		return;
	}
	// Construct the agenda event view
	mAgendaEventView = new AgendaEventView(this);
	mAgendaEventView->execute(entry, action);

}

/*!
	Launches the event viewer.File handle of any vcs/ics
	file can be given as input to view the calendar entry information.

	\param fileHandle reference to the file handle of vcs/ics file
 */
void AgendaEventViewerPrivate::view(const QFile &fileHandle, 
                                    AgendaEventViewer::Actions action)
{

	// Using calendar importer read the filehandle and generate agenda entry
	QString filePath = fileHandle.fileName();
	QString nativeFilePath = QDir::toNativeSeparators(filePath);
	AgendaEntry entry;
	mAgendaUtil->importvCalendar(nativeFilePath, entry);
	if (!entry.isNull()) {
		mAgendaEventView = new AgendaEventView(this);
		mAgendaEventView->execute(entry, action);
	} else {
        //store the file name
        mFileName = filePath ;
        mAction = action ;
        mShowEventViewByFileHandle = true;
        q_ptr->viewingCompleted(QDateTime::currentDateTime().date());
	}
}

/*!
	Launches the event viewer.AgendaEntry can be given as input to view the
	calendar entry information
 */
void AgendaEventViewerPrivate::view(AgendaEntry entry, 
                                    AgendaEventViewer::Actions action)
{

	if (entry.isNull()) {
			return;
		}
	// Construct the agenda event view
	mAgendaEventView = new AgendaEventView(this);
	mAgendaEventView->execute(entry, action);

}

/*!
	Emits the signal viewing completed to the clients

	\param status true if viewing completed otherwise false.
 */
void AgendaEventViewerPrivate::viewingCompleted(const QDate date)
{

	emit q_ptr->viewingCompleted(date);

	// Cleanup viewer.
	if (mAgendaEventView) {
		mAgendaEventView->deleteLater();
	}

}

/*!
	Emits the signal editing started to the clients
 */
void AgendaEventViewerPrivate::editingStarted()
{

	emit q_ptr->editingStarted();

}

/*!
	Emits the signal editing completed to the clients
 */
void AgendaEventViewerPrivate::editingCompleted()
{

	emit q_ptr->editingCompleted();

}

/*!
	Emits the signal deleting started to the clients
 */
void AgendaEventViewerPrivate::deletingStarted()
{

	emit q_ptr->deletingStarted();

}

/*!
	Emits the signal deleting completed to the clients
 */
void AgendaEventViewerPrivate::deletingCompleted()
{

	emit q_ptr->deletingCompleted();

}


/*!
     calls when instances of calenInstanceview and 
     entryInstanceview is created successfully
 */
void AgendaEventViewerPrivate::viewCreationCompleted(int error)
    {
    
    if((KErrNone == error))
        {
        AgendaEntry entry;
        if (mShowEventViewById)
            {
            entry = mAgendaUtil->fetchById(mId);
            }
        else if(mShowEventViewByFileHandle)
            {
            QString nativeFilePath = QDir::toNativeSeparators(mFileName);
            mAgendaUtil->importvCalendar(nativeFilePath, entry);
            }
        //if entry is there , then show the view
        if (!entry.isNull()) 
            {
            mAgendaEventView = new AgendaEventView(this);
            mAgendaEventView->execute(entry, mAction);
            }
        }      
    //reset the variables
    mId = 0;
    mFileName.clear();
    mShowEventViewById = false;
    mShowEventViewByFileHandle = false;
    mAction = AgendaEventViewer::ActionNothing;
	}
// End of file