/*

* 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:

* Definition of CalenEditorRepeatField class.

*

*/

// System Includes

#include <QDate>

#include <hbdataformmodelitem.h>

#include <hbdataformviewitem.h>

#include <hbdataformmodel.h>

#include <hbdataform.h>

#include <hbcombobox.h>

#include <hblabel.h>

#include <hbdatetimepicker.h>

#include <hbaction.h>

#include <agendautil.h>

// User Included

#include "caleneditorrepeatfield.h"

#include "caleneditorcustomitem.h"

/*!

	\class CalenEditorRepeatField

 */

/*!

	Constructor.

	\param parent QObject pointer

 */

CalenEditorRepeatField::CalenEditorRepeatField(CalenEditorPrivate* calenEditor,

       										HbDataForm* form, 

       										HbDataFormModel* model,

       										QObject *parent)

	:QObject(parent),

    mCalenEditor(calenEditor), 

	mEditorForm(form), 

	mCalenEditorModel(model), 

	mRepeatItem(NULL),

	mRepeatComboBox(NULL),

	mCustomRepeatUntilItem(NULL),

	mIsBiWeekly(false),

	mIsWorkdays(false),

	mRepeatUntilItemAdded(false)

{

	if (!mCalenEditor->editedEntry()->repeatRule().isNull()) {

		mRepeatRuleType = mCalenEditor->editedEntry()->repeatRule().type();

		mRepeatUntilDate = mCalenEditor->editedEntry()->repeatRule().until().date();

		}

		mRepeatItem = new HbDataFormModelItem();

		mRepeatItem->setType(HbDataFormModelItem::ComboBoxItem);

		mRepeatItem->setData(HbDataFormModelItem::LabelRole,

		                     hbTrId("txt_calendar_setlabel_repeat"));

		// Create the repeat choices

		QStringList repeatChoices;

		repeatChoices << hbTrId("txt_calendar_setlabel_repeat_val_only_once")

		        << hbTrId("txt_calendar_setlabel_repeat_val_daily")

		        // TODO : add text ID for workdays

		        << hbTrId("Workdays")

		        << hbTrId("txt_calendar_setlabel_repeat_val_weekly")

		        << hbTrId("txt_calendar_setlabel_repeat_val_fortnightly")

		        << hbTrId("txt_calendar_setlabel_repeat_val_monthly")

		        << hbTrId("txt_calendar_setlabel_repeat_val_yearly");

		mRepeatItem->setContentWidgetData(QString("items"), repeatChoices);

		mCalenEditorModel->appendDataFormItem( mRepeatItem,

									mCalenEditorModel->invisibleRootItem());

}

/*!

 Destructor

 */

CalenEditorRepeatField::~CalenEditorRepeatField()

{

	// Nothing Yet

}

/*!

	Adds repeat item to the model

 */

void CalenEditorRepeatField::addItemToModel()

{	

	// Add reminder to the model

	mCalenEditorModel->appendDataFormItem( mRepeatItem,

				   mCalenEditorModel->invisibleRootItem());

}

/*!

	Removes the repeat item from the model

 */

void CalenEditorRepeatField::removeItemFromModel()

{

	mCalenEditorModel->removeItem(modelIndex());

}

/*!

	 Populates repeat item with the options available

	 \param index index at which repeat item needs to be added

 */

void CalenEditorRepeatField::populateRepeatItem(int index)

{

	HbDataFormViewItem

			*item =

					qobject_cast<HbDataFormViewItem *> (

							mEditorForm->itemByIndex(

										mCalenEditorModel->index( index, 0)));

	mRepeatComboBox

			= qobject_cast<HbComboBox *> (item->dataItemContentWidget());

	// Set the user roles for the combobox items so that we depend on these

	// roles to identify the correct repeat type when repeat choices are 

	// dynamically removed or added

	mRepeatComboBox->setItemData(RepeatOnce, RepeatOnce, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatDaily, RepeatDaily, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatWorkdays, 

								 RepeatWorkdays, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatWeekly, RepeatWeekly, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatBiWeekly, 

								 RepeatBiWeekly, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatMonthly, 

								 RepeatMonthly, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatYearly, RepeatYearly, Qt::UserRole+100);

	if (mCalenEditor->editedEntry()->isRepeating()) {

		switch (mCalenEditor->editedEntry()->repeatRule().type()) {

			case AgendaRepeatRule::DailyRule: {

				mRepeatComboBox->setCurrentIndex(1);

			}

				break;

			case AgendaRepeatRule::WeeklyRule: {

				bool isWorkdays = AgendaUtil::isWorkdaysRepeatingEntry(

						mCalenEditor->editedEntry()->repeatRule());

				if (isWorkdays) {

					mRepeatComboBox->setCurrentIndex(2);

					mIsWorkdays = true;

				} else {

					if (mCalenEditor->editedEntry()->repeatRule().interval() == 1) {

						mRepeatComboBox->setCurrentIndex(3);

					} else {

						mRepeatComboBox->setCurrentIndex(4);

						mIsBiWeekly = true;

					}

				}

			}

				break;

			case AgendaRepeatRule::MonthlyRule: {

				mRepeatComboBox->setCurrentIndex(5);

			}

				break;

			case AgendaRepeatRule::YearlyRule: {

				mRepeatComboBox->setCurrentIndex(6);

			}

				break;

			default:

				break;

		}

		// If entry is repeating type then insert the repeatuntil item.

		insertRepeatUntilItem();

	} else {

		mRepeatComboBox->setCurrentIndex(0);

		// Set the Original entry value also.

		mCalenEditor->originalEntry()->setRepeatRule(

									  AgendaRepeatRule(

									  AgendaRepeatRule::InvalidRule));

	}

	// Update the repeat choices depending upon the duration

	updateRepeatChoices();

	connect(mRepeatComboBox, SIGNAL(currentIndexChanged(int)), this,

				SLOT(handleRepeatIndexChanged(int)));

}

/*!

	Triggerd from tapping on reminder item.

	Handles the reminder time change and updates the same in the event.

	\param index The new index chosen in the reminder list.

 */

void CalenEditorRepeatField::handleRepeatIndexChanged(int index)

{

	mIsBiWeekly = false;

	mIsWorkdays = false;

	HbExtendedLocale locale = HbExtendedLocale::system();

	// Get the user role w ehave set for this index

	QVariant userRole = mRepeatComboBox->itemData(index, Qt::UserRole + 100);

	int value = userRole.toInt();

	switch (value) {

		case 1: {

			if (!mRepeatUntilItemAdded) {

				insertRepeatUntilItem();

			}

			if (mCustomRepeatUntilItem) {

				mRepeatUntilDate = mCalenEditor->editedEntry()->startTime().date().addYears(1);

				mCustomRepeatUntilItem->setContentWidgetData( "text", 

												locale.format( mRepeatUntilDate,

												r_qtn_date_usual_with_zero));

			}

			mRepeatRuleType = AgendaRepeatRule::DailyRule;

		}

		break;

		case 2: {

			if (!mRepeatUntilItemAdded) {

				insertRepeatUntilItem();

			}

			if (mCustomRepeatUntilItem) {

				mRepeatUntilDate = mCalenEditor->editedEntry()->startTime().date().addYears(1);

				mCustomRepeatUntilItem->setContentWidgetData( "text",

												locale.format( mRepeatUntilDate,

												r_qtn_date_usual_with_zero));

			}

			mRepeatRuleType = AgendaRepeatRule::WeeklyRule;

			mIsWorkdays = true;

		}

		break;

		case 3: {

			if (!mRepeatUntilItemAdded) {

				insertRepeatUntilItem();

			}

			if (mCustomRepeatUntilItem) {

				mRepeatUntilDate = mCalenEditor->editedEntry()->startTime().date().addYears(1);

				mCustomRepeatUntilItem->setContentWidgetData( "text",

												locale.format( mRepeatUntilDate,

												r_qtn_date_usual_with_zero));

			}

			mRepeatRuleType = AgendaRepeatRule::WeeklyRule;

		}

		break;

		case 4: {

			if (!mRepeatUntilItemAdded) {

				insertRepeatUntilItem();

			}

			if (mCustomRepeatUntilItem) {

				mRepeatUntilDate = mCalenEditor->editedEntry()->startTime().date().addYears(1);

				mCustomRepeatUntilItem->setContentWidgetData( "text",

												locale.format( mRepeatUntilDate,

												r_qtn_date_usual_with_zero));

			}

			mRepeatRuleType = AgendaRepeatRule::WeeklyRule;

			mIsBiWeekly = true;

		}

		break;

		case 5: {

			if (!mRepeatUntilItemAdded) {

				insertRepeatUntilItem();

			}

			if (mCustomRepeatUntilItem) {

				mRepeatUntilDate = mCalenEditor->editedEntry()->startTime().date().addYears(5);

				mCustomRepeatUntilItem->setContentWidgetData( "text",

												locale.format( mRepeatUntilDate,

												r_qtn_date_usual_with_zero));

			}

			mRepeatRuleType = AgendaRepeatRule::MonthlyRule;

		}

		break;

		case 6: {

			if (!mRepeatUntilItemAdded) {

				insertRepeatUntilItem();

			}

			if (mCustomRepeatUntilItem) {

				mRepeatUntilDate = mCalenEditor->editedEntry()->startTime().date().addYears(10);

				mCustomRepeatUntilItem->setContentWidgetData( "text",

												locale.format( mRepeatUntilDate,

												r_qtn_date_usual_with_zero));

			}

			mRepeatRuleType = AgendaRepeatRule::YearlyRule;

		}

		break;

		default: {

			mRepeatRuleType = AgendaRepeatRule::InvalidRule;

			if (mRepeatUntilItemAdded) {

				QModelIndex repeatIndex =

				        mCalenEditorModel->indexFromItem(mRepeatItem);

				mCalenEditorModel->removeItem(

				                              mCalenEditorModel->index(

				                              repeatIndex.row()+ 1, 0));

				mRepeatUntilItemAdded = false;

				mCustomRepeatUntilItem = NULL;

			}

		}

		break;

	}

	mCalenEditor->addDiscardAction();

	mCalenEditor->updateReminderChoices();

}

/*!

	 Returns model index of the repeat item

	 \return Model index of the repeat item

 */

QModelIndex CalenEditorRepeatField::modelIndex()

{

	return mCalenEditorModel->indexFromItem(mRepeatItem);

}

/*!

	Inserts the repeat until item to the dataform model

 */

void CalenEditorRepeatField::insertRepeatUntilItem()

{

	HbDataFormModelItem::DataItemType itemType =

	        static_cast<HbDataFormModelItem::DataItemType> (RepeatUntilOffset);

	int index = CalenEditorPrivate::RepeatUntilItem;

	if (!mCalenEditor->isReminderTimeForAllDayAdded()) {

		index -= 1;

	}

	mCustomRepeatUntilItem = mCalenEditorModel->insertDataFormItem(

										index,

										itemType,

										QString(

										hbTrId(

										"txt_calendar_setlabel_repeat_until")),

										mCalenEditorModel->invisibleRootItem());

	mRepeatUntilItemAdded = true;

	mEditorForm->addConnection(mCustomRepeatUntilItem, SIGNAL(clicked()),

	                                this, SLOT(launchRepeatUntilDatePicker()));

	if (!mCalenEditor->isNewEntry() && mRepeatRuleType != AgendaRepeatRule::InvalidRule) {

		HbExtendedLocale locale = HbExtendedLocale::system();

		QString dateString = locale.format(

				mCalenEditor->editedEntry()->repeatRule().until().date(),

				r_qtn_date_usual_with_zero);

		mCustomRepeatUntilItem->setContentWidgetData("text", dateString);

	}

	//TODO: Scroll to functionality has to be implemented	

}

/*!

	 Informs if repeat until item has been added or not

	 \return true if repeat until item is added else false

 */

bool CalenEditorRepeatField::isRepeatUntilItemAdded()

{

	return mRepeatUntilItemAdded;

}

/*!

	Launches the date picker by tapping on the repaet until pushbutton

 */

void CalenEditorRepeatField::launchRepeatUntilDatePicker()

{

	HbDialog *popUp = new HbDialog();

	popUp->setDismissPolicy(HbDialog::NoDismiss);

	popUp->setTimeout(HbDialog::NoTimeout);

	popUp->setHeadingWidget( new HbLabel(

									hbTrId("txt_calendar_title_repeat_until")));

	popUp->setAttribute( Qt::WA_DeleteOnClose, true );

	if (mDatePicker) {

		mDatePicker = NULL;

	}

	if (mRepeatRuleType == AgendaRepeatRule::DailyRule) {

		QDate minDate = mCalenEditor->editedEntry()->endTime().date().addDays(1);

		mDatePicker = new HbDateTimePicker(mRepeatUntilDate, popUp);

		mDatePicker->setMinimumDate(minDate);

		mDatePicker->setMaximumDate(QDate(31, 12, 2100));

		mDatePicker->setDate(mRepeatUntilDate);

	} else if (mRepeatRuleType == AgendaRepeatRule::WeeklyRule) {

		QDate minDate;

		if (!mIsBiWeekly || mIsWorkdays) {

			minDate = mCalenEditor->editedEntry()->endTime().date().addDays(7);

		} else {

			minDate = mCalenEditor->editedEntry()->endTime().date().addDays(14);

		}

		mDatePicker = new HbDateTimePicker(mRepeatUntilDate, popUp);

		mDatePicker->setMinimumDate(minDate);

		mDatePicker->setMaximumDate(QDate(31, 12, 2100));

		mDatePicker->setDate(mRepeatUntilDate);

	} else if (mRepeatRuleType == AgendaRepeatRule::MonthlyRule) {

		QDate minDate = mCalenEditor->editedEntry()->endTime().date().addMonths(1);

		mDatePicker = new HbDateTimePicker(mRepeatUntilDate, popUp);

		mDatePicker->setMinimumDate(minDate);

		mDatePicker->setMaximumDate(QDate(31, 12, 2100));

		mDatePicker->setDate(mRepeatUntilDate);

	} else if (mRepeatRuleType == AgendaRepeatRule::YearlyRule) {

		QDate minDate = mCalenEditor->editedEntry()->endTime().date().addYears(1);

		mDatePicker = new HbDateTimePicker(mRepeatUntilDate, popUp);

		mDatePicker->setMinimumDate(minDate);

		mDatePicker->setMaximumDate(QDate(31, 12, 2100));

		mDatePicker->setDate(mRepeatUntilDate);

	}

	popUp->setContentWidget(mDatePicker);

	HbAction *okAction = new HbAction(hbTrId("txt_common_button_ok"));

	popUp->addAction(okAction);

	connect(okAction, SIGNAL(triggered()), this, SLOT(setRepeatUntilDate()));

	popUp->addAction(new HbAction(hbTrId("txt_common_button_cancel"), popUp));

	popUp->open();

}

/*!

	Sets the repeat until date on the repeat until item

 */

void CalenEditorRepeatField::setRepeatUntilDate()

{

	mRepeatUntilDate = mDatePicker->date();

	if (mRepeatUntilDate.isValid()) {

		HbExtendedLocale locale = HbExtendedLocale::system();

		QString dateString = locale.format(mRepeatUntilDate,

									r_qtn_date_usual_with_zero);

		mCustomRepeatUntilItem->setContentWidgetData("text", dateString);

	}

	mCalenEditor->updateReminderChoices();

}

/*!

	Returns the repeatuntildate displayed.

 */

QDate CalenEditorRepeatField::repeatUntilDate()

{

	return mRepeatUntilDate;

}

/*!

	Updates the repeat choices depending on the meeting duration

*/

void CalenEditorRepeatField::updateRepeatChoices()

{

	// Clear all the choices and add it again. If we dont do it 

	// as user would have changed the end times many times and we would have

	// deleted repeat options depending upon that

	// Get the current choice

	int choice = mRepeatComboBox->currentIndex();

	int previousCount = mRepeatComboBox->count();

	mRepeatComboBox->clear();

	QStringList repeatChoices;

	repeatChoices << hbTrId("txt_calendar_setlabel_repeat_val_only_once")

			<< hbTrId("txt_calendar_setlabel_repeat_val_daily")

			// TODO : add text ID for workdays

			<< hbTrId("Workdays")

			<< hbTrId("txt_calendar_setlabel_repeat_val_weekly")

			<< hbTrId("txt_calendar_setlabel_repeat_val_fortnightly")

			<< hbTrId("txt_calendar_setlabel_repeat_val_monthly")

			<< hbTrId("txt_calendar_setlabel_repeat_val_yearly");

	mRepeatComboBox->addItems(repeatChoices);

	// Set the user roles for the combobox items so that we depend on these

	// roles to identify the correct repeat type when repeat choices are 

	// dynamically removed or added

	mRepeatComboBox->setItemData(RepeatOnce, RepeatOnce, Qt::UserRole + 100);

	mRepeatComboBox->setItemData(RepeatDaily, RepeatDaily, 

								 Qt::UserRole + 100);

	mRepeatComboBox->setItemData(RepeatWorkdays, 

								 RepeatWorkdays, Qt::UserRole+100);

	mRepeatComboBox->setItemData(RepeatWeekly, RepeatWeekly,

								 Qt::UserRole + 100);

	mRepeatComboBox->setItemData(RepeatBiWeekly, RepeatBiWeekly,

								 Qt::UserRole + 100);

	mRepeatComboBox->setItemData(RepeatMonthly, RepeatMonthly,

								 Qt::UserRole + 100);

	mRepeatComboBox->setItemData(RepeatYearly, RepeatYearly, 

								 Qt::UserRole + 100);

	int totalCount = mRepeatComboBox->count();

	if (previousCount < totalCount && choice > 0) {

		choice += (totalCount - previousCount);

	}

	// Now check if the duration of the meeting and remove the repeat choices 

	// if necessary

	int duration =

			mCalenEditor->editedEntry()->startTime().daysTo(

					mCalenEditor->editedEntry()->endTime());

	bool isRemovedItem = false;

	int numberOfItemRemoved = 0;

	if (mCalenEditor->editedEntry()->endTime() >= (mCalenEditor->editedEntry()->startTime().addYears(1))) {

		isRemovedItem = true;

		numberOfItemRemoved = 6;

		// Remove all options except "RepeatOnce"

		// Should be deletd in the descending order only

		mRepeatComboBox->removeItem(RepeatYearly);

		mRepeatComboBox->removeItem(RepeatMonthly);

		mRepeatComboBox->removeItem(RepeatBiWeekly);

		mRepeatComboBox->removeItem(RepeatWeekly);

		mRepeatComboBox->removeItem(RepeatWorkdays);

		mRepeatComboBox->removeItem(RepeatDaily);

	} else if (mCalenEditor->editedEntry()->endTime()

			>= (mCalenEditor->editedEntry()->startTime().addMonths(1))) {

		isRemovedItem = true;

		numberOfItemRemoved = 5;

		// Remove all the options except "Repeat Once"

		// and "Repeat Yearly" options

		// Should be deletd in the descending order only

		mRepeatComboBox->removeItem(RepeatMonthly);

		mRepeatComboBox->removeItem(RepeatBiWeekly);

		mRepeatComboBox->removeItem(RepeatWeekly);

		mRepeatComboBox->removeItem(RepeatWorkdays);

		mRepeatComboBox->removeItem(RepeatDaily);

	} else if (duration >= 14) {

		isRemovedItem = true;

		numberOfItemRemoved = 4;

		// Remove daily, workdays, weekly and biweekly options

		// Should be deletd in the descending order only

		mRepeatComboBox->removeItem(RepeatBiWeekly);

		mRepeatComboBox->removeItem(RepeatWeekly);

		mRepeatComboBox->removeItem(RepeatWorkdays);

		mRepeatComboBox->removeItem(RepeatDaily);

	} else if (duration >= 7) {

		isRemovedItem = true;

		numberOfItemRemoved = 3;

		// Remove daily, workdays and weekly options

		// Should be deletd in the descending order only