/**
 ******************************************************************************
 *
 * @file       notifypluginoptionspage.cpp
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
 * @brief      Notify Plugin options page
 * @see        The GNU Public License (GPL) Version 3
 * @defgroup   notifyplugin
 * @{
 *
 *****************************************************************************/
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "notifypluginoptionspage.h"
#include <coreplugin/icore.h>
#include "notifypluginconfiguration.h"
#include "ui_notifypluginoptionspage.h"
#include "extensionsystem/pluginmanager.h"

#include <QFileDialog>
#include <QtAlgorithms>
#include <QStringList>
#include <QtCore/QSettings>
#include <QTableWidget>
#include <QPalette>
#include <QBuffer>

#include "notifyplugin.h"
#include "notifyitemdelegate.h"
#include "notifytablemodel.h"

NotifyPluginOptionsPage::NotifyPluginOptionsPage(/*NotifyPluginConfiguration *config,*/ QObject *parent) :
		IOptionsPage(parent),
		owner((SoundNotifyPlugin*)parent),
		currentCollectionPath(""),
		privListNotifications(((SoundNotifyPlugin*)parent)->getListNotifications())
{

}


//creates options page widget (uses the UI file)
QWidget *NotifyPluginOptionsPage::createPage(QWidget *parent)
{

	options_page = new Ui::NotifyPluginOptionsPage();
	//main widget
	QWidget *optionsPageWidget = new QWidget;
	//main layout
	options_page->setupUi(optionsPageWidget);

	delegateItems.clear();
	privListNotifications.clear();
	listSoundFiles.clear();

	delegateItems << "Repeat Once"
			 << "Repeat Instantly"
			 << "Repeat 10 seconds"
			 << "Repeat 30 seconds"
			 << "Repeat 1 minute";

	options_page->chkEnableSound->setChecked(owner->getEnableSound());
	options_page->SoundDirectoryPathChooser->setExpectedKind(Utils::PathChooser::Directory);
	options_page->SoundDirectoryPathChooser->setPromptDialogTitle(tr("Choose sound collection directory"));



	settings = Core::ICore::instance()->settings();
	settings->beginGroup(QLatin1String("NotifyPlugin"));

	ExtensionSystem::PluginManager *pm = ExtensionSystem::PluginManager::instance();
	objManager = pm->getObject<UAVObjectManager>();

	// Fills the combo boxes for the UAVObjects
	QList< QList<UAVDataObject*> > objList = objManager->getDataObjects();
	foreach (QList<UAVDataObject*> list, objList) {
		foreach (UAVDataObject* obj, list) {
			options_page->UAVObject->addItem(obj->getName());
		}
	}

	connect(options_page->SoundDirectoryPathChooser, SIGNAL(changed(const QString&)), this, SLOT(on_buttonSoundFolder_clicked(const QString&)));
	connect(options_page->SoundCollectionList, SIGNAL(currentIndexChanged (int)), this, SLOT(on_soundLanguage_indexChanged(int)));
	connect(options_page->buttonAdd, SIGNAL(pressed()), this, SLOT(on_buttonAddNotification_clicked()));
	connect(options_page->buttonDelete, SIGNAL(pressed()), this, SLOT(on_buttonDeleteNotification_clicked()));
	connect(options_page->buttonModify, SIGNAL(pressed()), this, SLOT(on_buttonModifyNotification_clicked()));
//	connect(options_page->buttonTestSound1, SIGNAL(clicked()), this, SLOT(on_buttonTestSound1_clicked()));
//	connect(options_page->buttonTestSound2, SIGNAL(clicked()), this, SLOT(on_buttonTestSound2_clicked()));
	connect(options_page->buttonPlayNotification, SIGNAL(clicked()), this, SLOT(on_buttonTestSoundNotification_clicked()));
	connect(options_page->chkEnableSound, SIGNAL(toggled(bool)), this, SLOT(on_chkEnableSound_toggled(bool)));


	connect(options_page->UAVObject, SIGNAL(currentIndexChanged(QString)), this, SLOT(on_UAVObject_indexChanged(QString)));
	connect(this, SIGNAL(updateNotifications(QList<NotifyPluginConfiguration*>)),
			owner, SLOT(updateNotificationList(QList<NotifyPluginConfiguration*>)));
	connect(this, SIGNAL(resetNotification()),owner, SLOT(resetNotification()));

	//emit resetNotification();

	int size = settings->beginReadArray("listNotifies");
	for (int i = 0; i < size; ++i) {
		 settings->setArrayIndex(i);
		 NotifyPluginConfiguration* notification = new NotifyPluginConfiguration;
		 notification->restoreState(settings);
		 privListNotifications.append(notification);
	}
	settings->endArray();

	settings->beginReadArray("Current");
	settings->setArrayIndex(0);
	NotifyPluginConfiguration notification;
	notification.restoreState(settings);
	updateConfigView(&notification);
	settings->endArray();
	options_page->chkEnableSound->setChecked(settings->value(QLatin1String("EnableSound"),0).toBool());
	settings->endGroup();

	QStringList headerStrings;
	headerStrings << "Name" << "Repeats" << "Lifetime,sec";

	notifyRulesModel = new NotifyTableModel(&privListNotifications,headerStrings);
	options_page->notifyRulesView->setModel(notifyRulesModel);
	options_page->notifyRulesView->resizeRowsToContents();
	notifyRulesSelection = new QItemSelectionModel(notifyRulesModel);
	connect(notifyRulesSelection, SIGNAL(selectionChanged ( const QItemSelection &, const QItemSelection & )),
			this, SLOT(on_tableNotification_changeSelection( const QItemSelection & , const QItemSelection & )));
	connect(this, SIGNAL(entryUpdated(int)),
			notifyRulesModel, SLOT(entryUpdated(int)));
	connect(this, SIGNAL(entryAdded(int)),
			notifyRulesModel, SLOT(entryAdded(int)));

	options_page->notifyRulesView->setSelectionModel(notifyRulesSelection);
	options_page->notifyRulesView->setItemDelegate(new NotifyItemDelegate(delegateItems,this));

	options_page->notifyRulesView->setColumnWidth(0,200);
	options_page->notifyRulesView->setColumnWidth(1,150);
	options_page->notifyRulesView->setColumnWidth(2,100);

	options_page->buttonModify->setEnabled(false);
	options_page->buttonDelete->setEnabled(false);
	options_page->buttonPlayNotification->setEnabled(false);

//	sound1 = Phonon::createPlayer(Phonon::NotificationCategory);
//	sound2 = Phonon::createPlayer(Phonon::NotificationCategory);
	notifySound = Phonon::createPlayer(Phonon::NotificationCategory);
//	audioOutput = new Phonon::AudioOutput(Phonon::NotificationCategory, this);
//	Phonon::createPath(sound1, audioOutput);
//	Phonon::createPath(sound2, audioOutput);
//	Phonon::createPath(notifySound, audioOutput);

//	connect(sound1,SIGNAL(stateChanged(Phonon::State,Phonon::State)),SLOT(changeButtonText(Phonon::State,Phonon::State)));
//	connect(sound2,SIGNAL(stateChanged(Phonon::State,Phonon::State)),SLOT(changeButtonText(Phonon::State,Phonon::State)));
	connect(notifySound,SIGNAL(stateChanged(Phonon::State,Phonon::State)),
			this,SLOT(changeButtonText(Phonon::State,Phonon::State)));

	return optionsPageWidget;
}

void NotifyPluginOptionsPage::showPersistentComboBox( const QModelIndex & parent, int start, int end )
{
//	for (int i=start; i<end+1; i++) {
//		options_page->tableNotifications->openPersistentEditor(options_page->tableNotifications->item(i,1));
//	}
}

void NotifyPluginOptionsPage::showPersistentComboBox2( const QModelIndex & topLeft, const QModelIndex & bottomRight )
{
	//for (QModelIndex i=topLeft; i<bottomRight+1; i++)
	{
//		options_page->tableNotifications->openPersistentEditor(options_page->tableNotifications->item(options_page->tableNotifications->currentRow(),1));
	}
}


void NotifyPluginOptionsPage::getOptionsPageValues(NotifyPluginConfiguration* notification)
{
	notification->setSoundCollectionPath(options_page->SoundDirectoryPathChooser->path());
	notification->setCurrentLanguage(options_page->SoundCollectionList->currentText());
	notification->setDataObject(options_page->UAVObject->currentText());
	notification->setObjectField(options_page->UAVObjectField->currentText());
	notification->setSound1(options_page->Sound1->currentText());
	notification->setSound2(options_page->Sound2->currentText());
	notification->setSound3(options_page->Sound3->currentText());
	notification->setSayOrder(options_page->SayOrder->currentText());
	notification->setValue(options_page->Value->currentText());
	notification->setSpinBoxValue(options_page->ValueSpinBox->value());

//	if(notifyRulesSelection->currentIndex().row()>-1)
//	{
//		//qDebug() << "delegate value:" << options_page->tableNotifications->item(options_page->tableNotifications->currentRow(),1)->data(Qt::EditRole);
//		notification->setRepeatFlag(notifyRulesModel->data(notifyRulesSelection->currentIndex(),Qt::DisplayRole).toString());
//	}
}

////////////////////////////////////////////
// Called when the user presses apply or OK.
//
// Saves the current values
//
////////////////////////////////////////////
void NotifyPluginOptionsPage::apply()
{
	NotifyPluginConfiguration notification;

	settings->beginGroup(QLatin1String("NotifyPlugin"));

	getOptionsPageValues(&notification);

	settings->beginWriteArray("Current");
	settings->setArrayIndex(0);
	notification.saveState(settings);
	settings->endArray();

	settings->beginGroup("listNotifies");
	settings->remove("");
	settings->endGroup();

	settings->beginWriteArray("listNotifies");
	for (int i = 0; i < privListNotifications.size(); i++) {
		settings->setArrayIndex(i);
		privListNotifications.at(i)->saveState(settings);
	}
	settings->endArray();
	settings->setValue(QLatin1String("EnableSound"), options_page->chkEnableSound->isChecked());
	settings->endGroup();

	owner->setEnableSound(options_page->chkEnableSound->isChecked());
	//owner->setListNotifications(privListNotifications);
	emit updateNotifications(privListNotifications);
}

void NotifyPluginOptionsPage::finish()
{
	disconnect(notifySound,SIGNAL(stateChanged(Phonon::State,Phonon::State)),
			   this,SLOT(changeButtonText(Phonon::State,Phonon::State)));
	if(notifySound)
	{
		notifySound->stop();
		notifySound->clear();
	}

	delete options_page;
}



//////////////////////////////////////////////////////////////////////////////
//  Fills in the <Field> combo box when value is changed in the
//  <Object> combo box
//////////////////////////////////////////////////////////////////////////////
void NotifyPluginOptionsPage::on_UAVObject_indexChanged(QString val) {
	options_page->UAVObjectField->clear();
    ExtensionSystem::PluginManager *pm = ExtensionSystem::PluginManager::instance();
    UAVObjectManager *objManager = pm->getObject<UAVObjectManager>();
    UAVDataObject* obj = dynamic_cast<UAVDataObject*>( objManager->getObject(val) );
    QList<UAVObjectField*> fieldList = obj->getFields();
    foreach (UAVObjectField* field, fieldList) {
		options_page->UAVObjectField->addItem(field->getName());
    }
}

// locate collection folder on disk
void NotifyPluginOptionsPage::on_buttonSoundFolder_clicked(const QString& path)
{
	QDir dirPath(path);
	listDirCollections = dirPath.entryList(QDir::AllDirs | QDir::NoDotAndDotDot);
	options_page->SoundCollectionList->clear();
	options_page->SoundCollectionList->addItems(listDirCollections);
}


void NotifyPluginOptionsPage::on_soundLanguage_indexChanged(int index)
{
	options_page->SoundCollectionList->setCurrentIndex(index);

        currentCollectionPath = options_page->SoundDirectoryPathChooser->path() +
                QDir::toNativeSeparators("/" + options_page->SoundCollectionList->currentText());

	QDir dirPath(currentCollectionPath);
	QStringList filters;
	filters << "*.mp3" << "*.wav";
	dirPath.setNameFilters(filters);
	listSoundFiles = dirPath.entryList(filters);
	listSoundFiles.replaceInStrings(QRegExp(".mp3|.wav"), "");
	options_page->Sound1->clear();
	options_page->Sound2->clear();
	options_page->Sound3->clear();
	options_page->Sound1->addItems(listSoundFiles);
	options_page->Sound2->addItem("");
	options_page->Sound2->addItems(listSoundFiles);
	options_page->Sound3->addItem("");
	options_page->Sound3->addItems(listSoundFiles);

}

void  NotifyPluginOptionsPage::changeButtonText(Phonon::State newstate, Phonon::State oldstate)
{
	if(newstate  == Phonon::PausedState || newstate  == Phonon::StoppedState){
		options_page->buttonPlayNotification->setText("Play");
		options_page->buttonPlayNotification->setIcon(QPixmap(":/notify/images/play.png"));
	}
	else
		if(newstate  == Phonon::PlayingState) {
		options_page->buttonPlayNotification->setText("Stop");
		options_page->buttonPlayNotification->setIcon(QPixmap(":/notify/images/stop.png"));
	}
}


void NotifyPluginOptionsPage::on_buttonTestSoundNotification_clicked()
{
	QList <Phonon::MediaSource> messageNotify;
	NotifyPluginConfiguration* notification = new NotifyPluginConfiguration;

	if(notifyRulesSelection->currentIndex().row()==-1) return;

	notification = privListNotifications.at(notifyRulesSelection->currentIndex().row());
	notification->parseNotifyMessage();
	foreach(QString item, notification->getNotifyMessageList())
		messageNotify.append(Phonon::MediaSource(item));
	notifySound->clear();
	notifySound->setQueue(messageNotify);
	notifySound->play();
}

void NotifyPluginOptionsPage::on_chkEnableSound_toggled(bool state)
{
	bool state1 = 1^state;

	QList<Phonon::Path> listOutputs = notifySound->outputPaths();
	Phonon::AudioOutput * audioOutput = (Phonon::AudioOutput*)listOutputs.last().sink();
	audioOutput->setMuted(state1);
}

void NotifyPluginOptionsPage::updateConfigView(NotifyPluginConfiguration* notification)
{
	QString path = notification->getSoundCollectionPath();
	if(path=="")
	{
		//QDir dir = QDir::currentPath();
		//path = QDir::currentPath().left(QDir::currentPath().indexOf("OpenPilot",0,Qt::CaseSensitive))+"../share/sounds";
		path = "../share/sounds";
	}
	options_page->SoundDirectoryPathChooser->setPath(path);

	if(options_page->SoundCollectionList->findText(notification->getCurrentLanguage())!=-1){
		options_page->SoundCollectionList->setCurrentIndex(options_page->SoundCollectionList->findText(notification->getCurrentLanguage()));
	}
	else
		options_page->SoundCollectionList->setCurrentIndex(options_page->SoundCollectionList->findText("default"));


	if(options_page->UAVObject->findText(notification->getDataObject())!=-1){
		options_page->UAVObject->setCurrentIndex(options_page->UAVObject->findText(notification->getDataObject()));
	}

	// Now load the object field values:
	options_page->UAVObjectField->clear();
	QString uavDataObject = notification->getDataObject();
	UAVDataObject* obj = dynamic_cast<UAVDataObject*>( objManager->getObject(uavDataObject/*objList.at(0).at(0)->getName()*/) );
	if (obj != NULL ) {
		QList<UAVObjectField*> fieldList = obj->getFields();
		foreach (UAVObjectField* field, fieldList) {
			options_page->UAVObjectField->addItem(field->getName());
		}
	}

	if(options_page->UAVObjectField->findText(notification->getObjectField())!=-1){
		options_page->UAVObjectField->setCurrentIndex(options_page->UAVObjectField->findText(notification->getObjectField()));
	}

	if(options_page->Sound1->findText(notification->getSound1())!=-1){
		options_page->Sound1->setCurrentIndex(options_page->Sound1->findText(notification->getSound1()));
	}
	else
	{
		// show item from default location
		options_page->SoundCollectionList->setCurrentIndex(options_page->SoundCollectionList->findText("default"));
		options_page->Sound1->setCurrentIndex(options_page->Sound1->findText(notification->getSound1()));

		// don't show item if it wasn't find in stored location
		//options_page->Sound1->setCurrentIndex(-1);
	}

	if(options_page->Sound2->findText(notification->getSound2())!=-1) {
		options_page->Sound2->setCurrentIndex(options_page->Sound2->findText(notification->getSound2()));
	}
	else {
		// show item from default location
		options_page->SoundCollectionList->setCurrentIndex(options_page->SoundCollectionList->findText("default"));
		options_page->Sound2->setCurrentIndex(options_page->Sound2->findText(notification->getSound2()));

		// don't show item if it wasn't find in stored location
		//options_page->Sound2->setCurrentIndex(-1);
	}

	if(options_page->Sound3->findText(notification->getSound3())!=-1) {
		options_page->Sound3->setCurrentIndex(options_page->Sound3->findText(notification->getSound3()));
	}
	else {
		// show item from default location
		options_page->SoundCollectionList->setCurrentIndex(options_page->SoundCollectionList->findText("default"));
		options_page->Sound3->setCurrentIndex(options_page->Sound3->findText(notification->getSound3()));
	}

	if(options_page->Value->findText(notification->getValue())!=-1) {
		options_page->Value->setCurrentIndex(options_page->Value->findText(notification->getValue()));
	}

	if(options_page->SayOrder->findText(notification->getSayOrder())!=-1) {
		options_page->SayOrder->setCurrentIndex(options_page->SayOrder->findText(notification->getSayOrder()));
	}
	options_page->ValueSpinBox->setValue(notification->getSpinBoxValue());
}

void NotifyPluginOptionsPage::on_tableNotification_changeSelection( const QItemSelection & selected, const QItemSelection & deselected )
{
	bool select = true;
	notifySound->stop();
	if(selected.indexes().size())
		updateConfigView(privListNotifications.at(selected.indexes().at(0).row()));
	else
		select = false;

	options_page->buttonModify->setEnabled(select);
	options_page->buttonDelete->setEnabled(select);
	options_page->buttonPlayNotification->setEnabled(select);
}



void NotifyPluginOptionsPage::on_buttonAddNotification_clicked()
{
	NotifyPluginConfiguration* notification = new NotifyPluginConfiguration;

	if(options_page->SoundDirectoryPathChooser->path()=="")
	{
		QPalette textPalette=options_page->SoundDirectoryPathChooser->palette();
		textPalette.setColor(QPalette::Normal,QPalette::Text, Qt::red);
		options_page->SoundDirectoryPathChooser->setPalette(textPalette);
		options_page->SoundDirectoryPathChooser->setPath("please select sound collection folder");
		return;
	}

	notification->setSoundCollectionPath(options_page->SoundDirectoryPathChooser->path());
	notification->setCurrentLanguage(options_page->SoundCollectionList->currentText());
	notification->setDataObject(options_page->UAVObject->currentText());
	notification->setObjectField(options_page->UAVObjectField->currentText());
	notification->setValue(options_page->Value->currentText());
	notification->setSpinBoxValue(options_page->ValueSpinBox->value());

	if(options_page->Sound1->currentText()!="")
		notification->setSound1(options_page->Sound1->currentText());

	notification->setSound2(options_page->Sound2->currentText());
	notification->setSound3(options_page->Sound3->currentText());

	if(((options_page->Sound2->currentText()=="")&&(options_page->SayOrder->currentText()=="After second"))
		|| ((options_page->Sound3->currentText()=="")&&(options_page->SayOrder->currentText()=="After third")))
		return;
	else
		notification->setSayOrder(options_page->SayOrder->currentText());

	privListNotifications.append(notification);
	emit entryAdded(privListNotifications.size()-1);
	notifyRulesSelection->setCurrentIndex(notifyRulesModel->index(privListNotifications.size()-1,0,QModelIndex()),
										  QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
}


void NotifyPluginOptionsPage::on_buttonDeleteNotification_clicked()
{
	notifyRulesModel->removeRow(notifyRulesSelection->currentIndex().row());
	if(!notifyRulesModel->rowCount() && (notifyRulesSelection->currentIndex().row() > 0 && notifyRulesSelection->currentIndex().row() < notifyRulesModel->rowCount()))
	{
		options_page->buttonDelete->setEnabled(false);
		options_page->buttonModify->setEnabled(false);
		options_page->buttonPlayNotification->setEnabled(false);
	}

}

void NotifyPluginOptionsPage::on_buttonModifyNotification_clicked()
{
	NotifyPluginConfiguration* notification = new NotifyPluginConfiguration;
	getOptionsPageValues(notification);
	notification->setRepeatFlag(privListNotifications.at(notifyRulesSelection->currentIndex().row())->getRepeatFlag());
	privListNotifications.replace(notifyRulesSelection->currentIndex().row(),notification);
	entryUpdated(notifyRulesSelection->currentIndex().row());

}