/*
* 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: Single day item view model
*
*/



#include <calenservices.h>
#include <agendautil.h>
#include "calendaymodel.h"


/*!
	BC Day Model constructor
	\a date defined day for which entries will be fetched \a services is handle to 
	organizer services \a parent
 */
CalenDayModel::CalenDayModel(const QDateTime &date, MCalenServices &services,
									QObject *parent)
									: QAbstractListModel(parent), mServices(services)
{
	if (date.isValid())
		{
		loadAndStoreInstances(date);
		}
}

/*
    \reimp
 */
int CalenDayModel::rowCount( const QModelIndex &parent ) const
{
    Q_UNUSED( parent )
    return mEntryList.count();
}

/*
    \reimp
 */
QVariant CalenDayModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid())
    	{
        return QVariant();
    	}

    if (index.row() >= mEntryList.count())
    	{
        return QVariant();
    	}

    if (role == CalenDayEntry)
    	{
        return mEntryList.at(index.row());
    	}
    else
    	{
        return QVariant();
    	}
}

/*!
	Resets model. Old events are removed. Evenets for given day are fetched.
	\a date defined day for which entries will be fetched
 */
void CalenDayModel::refreshModel(const QDateTime &date)
{
	beginResetModel();
	loadAndStoreInstances(date);
	endResetModel();
}


/*!
	Fetches entries via. organizer API and stores it in member container 
 */
void CalenDayModel::loadAndStoreInstances(const QDateTime &date)
{   
	mDateTime = date;
    //Filter flags
	AgendaUtil::FilterFlags filter = AgendaUtil::FilterFlags(
			AgendaUtil::IncludeAppointments | AgendaUtil::IncludeEvents);
	QList<AgendaEntry> list;
	// Fetch the instance list from the agenda interface
	list = mServices.agendaInterface()->createEntryIdListForDay(date, filter);

	mEntryList.clear();

	foreach(AgendaEntry entry, list)
		{
		mEntryList.append(QVariant::fromValue(entry));
		}
}

/*!
	Retruns date (day). Model holds events for this day. 
 */
QDateTime CalenDayModel::modelDate() const
{
	return mDateTime;
}