#include "options_dialog.h"
#include "configuration.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QFileDialog>
#include <QGroupBox>
#include <QRadioButton>
#include <QTabWidget>
#include <QSlider>
#include <QLineEdit>
#include <QPushButton>
#include <QLabel>
#include <QColorDialog>
#include <QCheckBox>

#include "yacreader_spin_slider_widget.h"
#include "yacreader_flow_config_widget.h"
#ifndef NO_OPENGL
#include "yacreader_gl_flow_config_widget.h"
#endif

OptionsDialog::OptionsDialog(QWidget * parent)
	:YACReaderOptionsDialog(parent)
{

	QTabWidget * tabWidget = new QTabWidget();

	QVBoxLayout * layout = new QVBoxLayout(this);

	QWidget * pageGeneral = new QWidget();
	QWidget * pageFlow = new QWidget();
	QWidget * pageImage = new QWidget();
	QVBoxLayout * layoutGeneral = new QVBoxLayout();
	QVBoxLayout * layoutFlow = new QVBoxLayout();
	QVBoxLayout * layoutImageV = new QVBoxLayout();
	QGridLayout * layoutImage = new QGridLayout();

	QGroupBox *slideSizeBox = new QGroupBox(tr("\"Go to flow\" size"));
	//slideSizeLabel = new QLabel(,this);
	slideSize = new QSlider(this);
	slideSize->setMinimum(125);
	slideSize->setMaximum(350);
	slideSize->setPageStep(5);
	slideSize->setOrientation(Qt::Horizontal);
	QHBoxLayout * slideLayout = new QHBoxLayout();
	slideLayout->addWidget(slideSize);
	slideSizeBox->setLayout(slideLayout);

	QGroupBox *pathBox = new QGroupBox(tr("My comics path"));

	QHBoxLayout * path = new QHBoxLayout();
	path->addWidget(pathEdit = new QLineEdit());
	path->addWidget(pathFindButton = new QPushButton(QIcon(":/images/find_folder.png"),""));
	pathBox->setLayout(path);

	connect(pathFindButton,SIGNAL(clicked()),this,SLOT(findFolder()));

	//fitToWidthRatioLabel = new QLabel(tr("Page width stretch"),this);
	/*QGroupBox *fitBox = new QGroupBox(tr("Page width stretch"));
	fitToWidthRatioS = new QSlider(this);
	fitToWidthRatioS->setMinimum(50);
	fitToWidthRatioS->setMaximum(100);
	fitToWidthRatioS->setPageStep(5);
	fitToWidthRatioS->setOrientation(Qt::Horizontal);
	//connect(fitToWidthRatioS,SIGNAL(valueChanged(int)),this,SLOT(fitToWidthRatio(int)));
	QHBoxLayout * fitLayout = new QHBoxLayout;
	fitLayout->addWidget(fitToWidthRatioS);
	fitBox->setLayout(fitLayout);*/

	QHBoxLayout * colorSelection = new QHBoxLayout;
	backgroundColor = new QLabel();
	QPalette pal = backgroundColor->palette();
	pal.setColor(backgroundColor->backgroundRole(), Qt::black);
	backgroundColor->setPalette(pal);
	backgroundColor->setAutoFillBackground(true);

	colorDialog = new QColorDialog(Qt::red,this);
	connect(colorDialog,SIGNAL(colorSelected(QColor)),this,SLOT(updateColor(QColor)));

	QGroupBox *colorBox = new QGroupBox(tr("Background color"));
	//backgroundColor->setMinimumWidth(100);
	colorSelection->addWidget(backgroundColor);
	colorSelection->addWidget(selectBackgroundColorButton = new QPushButton(tr("Choose")));
	colorSelection->setStretchFactor(backgroundColor,1);
	colorSelection->setStretchFactor(selectBackgroundColorButton,0);
	//colorSelection->addStretch();
	connect(selectBackgroundColorButton, SIGNAL(clicked()), colorDialog, SLOT(show()));
	colorBox->setLayout(colorSelection);

	brightnessS = new YACReaderSpinSliderWidget(this,true);
	brightnessS->setRange(0,100);
	//brightnessS->setText(tr("Brightness"));
	brightnessS->setTracking(false);
	connect(brightnessS,SIGNAL(valueChanged(int)),this,SLOT(brightnessChanged(int)));

	contrastS = new YACReaderSpinSliderWidget(this,true);
	contrastS->setRange(0,250);
	//contrastS->setText(tr("Contrast"));
	contrastS->setTracking(false);
	connect(contrastS,SIGNAL(valueChanged(int)),this,SLOT(contrastChanged(int)));

	gammaS = new YACReaderSpinSliderWidget(this,true);
	gammaS->setRange(0,250);
	//gammaS->setText(tr("Gamma"));
	gammaS->setTracking(false);
	connect(gammaS,SIGNAL(valueChanged(int)),this,SLOT(gammaChanged(int)));
	//connect(brightnessS,SIGNAL(valueChanged(int)),this,SIGNAL(changedOptions()));

    quickNavi = new QCheckBox(tr("Quick Navigation Mode"));
    disableShowOnMouseOver = new QCheckBox(tr("Disable mouse over activation"));

	QHBoxLayout * buttons = new QHBoxLayout();
	buttons->addStretch();
	buttons->addWidget(new QLabel(tr("Restart is needed")));
	buttons->addWidget(accept);
	buttons->addWidget(cancel);

	layoutGeneral->addWidget(pathBox);
	layoutGeneral->addWidget(slideSizeBox);
	//layoutGeneral->addWidget(fitBox);
	layoutGeneral->addWidget(colorBox);
	layoutGeneral->addWidget(shortcutsBox);
	layoutGeneral->addStretch();

	layoutFlow->addWidget(sw);
#ifndef NO_OPENGL
	layoutFlow->addWidget(gl);
	layoutFlow->addWidget(useGL);
#endif
	layoutFlow->addWidget(quickNavi);
    layoutFlow->addWidget(disableShowOnMouseOver);
	layoutFlow->addStretch();

	layoutImage->addWidget(new QLabel(tr("Brightness")),0,0);
	layoutImage->addWidget(new QLabel(tr("Contrast")),1,0);
	layoutImage->addWidget(new QLabel(tr("Gamma")),2,0);
	layoutImage->addWidget(brightnessS,0,1);
	layoutImage->addWidget(contrastS,1,1);
	layoutImage->addWidget(gammaS,2,1);
	QPushButton * pushButton = new QPushButton(tr("Reset"));
	connect(pushButton,SIGNAL(pressed()),this,SLOT(resetImageConfig()));
	layoutImage->addWidget(pushButton,3,0);
	layoutImage->setColumnStretch(1,1);


	QGroupBox *imageBox = new QGroupBox(tr("Image options"));
	imageBox->setLayout(layoutImage);
	layoutImageV->addWidget(imageBox);
	layoutImageV->addStretch();


	pageGeneral->setLayout(layoutGeneral);
	pageFlow->setLayout(layoutFlow);
	pageImage->setLayout(layoutImageV);

	tabWidget->addTab(pageGeneral,tr("General"));
	tabWidget->addTab(pageFlow,tr("Page Flow"));
	tabWidget->addTab(pageImage,tr("Image adjustment"));

	layout->addWidget(tabWidget);
	layout->addLayout(buttons);

	setLayout(layout);

	//disable vSyncCheck
#ifndef NO_OPENGL
	gl->vSyncCheck->hide();
#endif
	//restoreOptions(); //load options
	//resize(400,0);
	setModal (true);
	setWindowTitle(tr("Options"));

	this->layout()->setSizeConstraint(QLayout::SetFixedSize);
}

void OptionsDialog::findFolder()
{
	QString s = QFileDialog::getExistingDirectory(0,tr("Comics directory"),".");
	if(!s.isEmpty())
	{
		pathEdit->setText(s);
	}
}

void OptionsDialog::saveOptions()
{

	settings->setValue(GO_TO_FLOW_SIZE,QSize(static_cast<int>(slideSize->sliderPosition()/SLIDE_ASPECT_RATIO),slideSize->sliderPosition()));

	if(sw->radio1->isChecked())
		settings->setValue(FLOW_TYPE_SW,0);
	if(sw->radio2->isChecked())
		settings->setValue(FLOW_TYPE_SW,1);
	if(sw->radio3->isChecked())
		settings->setValue(FLOW_TYPE_SW,2);

	settings->setValue(PATH,pathEdit->text());

	settings->setValue(BACKGROUND_COLOR,colorDialog->currentColor());
	//settings->setValue(FIT_TO_WIDTH_RATIO,fitToWidthRatioS->sliderPosition()/100.0);
    settings->setValue(QUICK_NAVI_MODE,quickNavi->isChecked());
    settings->setValue(DISABLE_MOUSE_OVER_GOTO_FLOW,disableShowOnMouseOver->isChecked());

	YACReaderOptionsDialog::saveOptions();
}

void OptionsDialog::restoreOptions(QSettings * settings)
{
	YACReaderOptionsDialog::restoreOptions(settings);

	slideSize->setSliderPosition(settings->value(GO_TO_FLOW_SIZE).toSize().height());
	switch(settings->value(FLOW_TYPE_SW).toInt())
	{
	case 0:
		sw->radio1->setChecked(true);
		break;
	case 1:
		sw->radio2->setChecked(true);
		break;
	case 2:
		sw->radio3->setChecked(true);
		break;
	default:
		sw->radio1->setChecked(true);
		break;
	}

	pathEdit->setText(settings->value(PATH).toString());

	updateColor(settings->value(BACKGROUND_COLOR).value<QColor>());
	//fitToWidthRatioS->setSliderPosition(settings->value(FIT_TO_WIDTH_RATIO).toFloat()*100);

    quickNavi->setChecked(settings->value(QUICK_NAVI_MODE).toBool());
    disableShowOnMouseOver->setChecked(settings->value(DISABLE_MOUSE_OVER_GOTO_FLOW).toBool());

	brightnessS->setValue(settings->value(BRIGHTNESS,0).toInt());
	contrastS->setValue(settings->value(CONTRAST,100).toInt());
	gammaS->setValue(settings->value(GAMMA,100).toInt());
}


void OptionsDialog::updateColor(const QColor & color)
{
	QPalette pal = backgroundColor->palette();
	pal.setColor(backgroundColor->backgroundRole(), color);
	backgroundColor->setPalette(pal);
	backgroundColor->setAutoFillBackground(true);
	colorDialog->setCurrentColor(color);

	settings->setValue(BACKGROUND_COLOR,color);

	emit(changedOptions());
}

/*void OptionsDialog::fitToWidthRatio(int value)
{
	Configuration::getConfiguration().setFitToWidthRatio(value/100.0);
	emit(fitToWidthRatioChanged(value/100.0));
}*/

void OptionsDialog::brightnessChanged(int value)
{
	QSettings settings(YACReader::getSettingsPath()+"/YACReader.ini",QSettings::IniFormat);
	settings.setValue(BRIGHTNESS,value);
	emit changedFilters(brightnessS->getValue(), contrastS->getValue(), gammaS->getValue());
	//emit(changedImageOptions());
}

void OptionsDialog::contrastChanged(int value)
{
	QSettings settings(YACReader::getSettingsPath()+"/YACReader.ini",QSettings::IniFormat);
	settings.setValue(CONTRAST,value);
	emit changedFilters(brightnessS->getValue(), contrastS->getValue(), gammaS->getValue());
	///emit(changedImageOptions());
}

void OptionsDialog::gammaChanged(int value)
{
	QSettings settings(YACReader::getSettingsPath()+"/YACReader.ini",QSettings::IniFormat);
	settings.setValue(GAMMA,value);
	emit changedFilters(brightnessS->getValue(), contrastS->getValue(), gammaS->getValue());
	//emit(changedImageOptions());
}

void OptionsDialog::resetImageConfig()
{
	brightnessS->setValue(0);
	contrastS->setValue(100);
	gammaS->setValue(100);
	QSettings settings(YACReader::getSettingsPath()+"/YACReader.ini",QSettings::IniFormat);
	settings.setValue(BRIGHTNESS,0);
	settings.setValue(CONTRAST,100);
	settings.setValue(GAMMA,100);
	emit changedFilters(brightnessS->getValue(), contrastS->getValue(), gammaS->getValue());
	//emit(changedImageOptions());
}

void OptionsDialog::show()
{
	//TODO solucionar el tema de las settings, esto sólo debería aparecer en una única línea de código
	QSettings *s = new QSettings(YACReader::getSettingsPath()+"/YACReader.ini",QSettings::IniFormat);
	//fitToWidthRatioS->disconnect();
	//fitToWidthRatioS->setSliderPosition(settings->value(FIT_TO_WIDTH_RATIO).toFloat()*100);
	//connect(fitToWidthRatioS,SIGNAL(valueChanged(int)),this,SLOT(fitToWidthRatio(int)));
	QDialog::show();
	delete s;
}

void OptionsDialog::setFilters(int brightness, int contrast, int gamma)
{
	if(brightness != -1)
		brightnessS->setValue(brightness);
	else
		brightnessS->setValue(0);
	if(contrast != -1)
		contrastS->setValue(contrast);
	else
		contrastS->setValue(100);
	if(gamma != -1)
		gammaS->setValue(gamma);
	else
		gammaS->setValue(100);

}