/* Copyright (c) 2013-2021 Jeffrey Pfau
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SettingsView.h"

#include "AudioProcessor.h"
#include "CheckBoxDelegate.h"
#include "ConfigController.h"
#include "Display.h"
#include "GBAApp.h"
#include "GBAKeyEditor.h"
#include "InputController.h"
#include "RotatedHeaderView.h"
#include "ShaderSelector.h"
#include "ShortcutView.h"

#ifdef M_CORE_GB
#include "GameBoy.h"
#include <mgba/internal/gb/overrides.h>
#endif

#include <mgba/core/serialize.h>
#include <mgba/core/version.h>
#include <mgba/internal/gba/gba.h>

#ifdef BUILD_SDL
#include "platform/sdl/sdl-events.h"
#endif

using namespace QGBA;

SettingsView::SettingsView(ConfigController* controller, InputController* inputController, ShortcutController* shortcutController, LogController* logController, QWidget* parent)
	: QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint)
	, m_controller(controller)
	, m_logModel(logController)
{
	m_ui.setupUi(this);

	m_pageIndex[Page::AV] = 0;
	m_pageIndex[Page::GAMEPLAY] = 1;
	m_pageIndex[Page::INTERFACE] = 2;
	m_pageIndex[Page::UPDATE] = 3;
	m_pageIndex[Page::EMULATION] = 4;
	m_pageIndex[Page::ENHANCEMENTS] = 5;
	m_pageIndex[Page::BIOS] = 6;
	m_pageIndex[Page::PATHS] = 7;
	m_pageIndex[Page::LOGGING] = 8;

#ifdef M_CORE_GB
	m_pageIndex[Page::GB] = 9;

	for (auto& model : GameBoy::modelList()) {
		m_ui.gbModel->addItem(GameBoy::modelName(model), model);
		m_ui.sgbModel->addItem(GameBoy::modelName(model), model);
		m_ui.cgbModel->addItem(GameBoy::modelName(model), model);
		m_ui.cgbHybridModel->addItem(GameBoy::modelName(model), model);
		m_ui.cgbSgbModel->addItem(GameBoy::modelName(model), model);
	}

	m_ui.gbModel->setCurrentIndex(m_ui.gbModel->findData(GB_MODEL_DMG));
	m_ui.sgbModel->setCurrentIndex(m_ui.gbModel->findData(GB_MODEL_SGB));
	m_ui.cgbModel->setCurrentIndex(m_ui.gbModel->findData(GB_MODEL_CGB));
	m_ui.cgbHybridModel->setCurrentIndex(m_ui.gbModel->findData(GB_MODEL_CGB));
	m_ui.cgbSgbModel->setCurrentIndex(m_ui.gbModel->findData(GB_MODEL_CGB));
#endif

	reloadConfig();

	connect(m_ui.volume, static_cast<void (QSlider::*)(int)>(&QSlider::valueChanged), [this](int v) {
		if (v < m_ui.volumeFf->value()) {
			m_ui.volumeFf->setValue(v);
		}
	});

	connect(m_ui.mute, &QAbstractButton::toggled, [this](bool e) {
		if (e) {
			m_ui.muteFf->setChecked(e);
		}
	});

	connect(m_ui.nativeGB, &QAbstractButton::pressed, [this]() {
		m_ui.fpsTarget->setValue(double(GBA_ARM7TDMI_FREQUENCY) / double(VIDEO_TOTAL_LENGTH));
	});

	if (m_ui.savegamePath->text().isEmpty()) {
		m_ui.savegameSameDir->setChecked(true);
	}
	connect(m_ui.savegameSameDir, &QAbstractButton::toggled, [this] (bool e) {
		if (e) {
			m_ui.savegamePath->clear();
		}
	});
	connect(m_ui.savegameBrowse, &QAbstractButton::pressed, [this] () {
		selectPath(m_ui.savegamePath, m_ui.savegameSameDir);
	});

	if (m_ui.savestatePath->text().isEmpty()) {
		m_ui.savestateSameDir->setChecked(true);
	}
	connect(m_ui.savestateSameDir, &QAbstractButton::toggled, [this] (bool e) {
		if (e) {
			m_ui.savestatePath->clear();
		}
	});
	connect(m_ui.savestateBrowse, &QAbstractButton::pressed, [this] () {
		selectPath(m_ui.savestatePath, m_ui.savestateSameDir);
	});

	if (m_ui.screenshotPath->text().isEmpty()) {
		m_ui.screenshotSameDir->setChecked(true);
	}
	connect(m_ui.screenshotSameDir, &QAbstractButton::toggled, [this] (bool e) {
		if (e) {
			m_ui.screenshotPath->clear();
		}
	});
	connect(m_ui.screenshotBrowse, &QAbstractButton::pressed, [this] () {
		selectPath(m_ui.screenshotPath, m_ui.screenshotSameDir);
	});

	if (m_ui.patchPath->text().isEmpty()) {
		m_ui.patchSameDir->setChecked(true);
	}
	connect(m_ui.patchSameDir, &QAbstractButton::toggled, [this] (bool e) {
		if (e) {
			m_ui.patchPath->clear();
		}
	});
	connect(m_ui.patchBrowse, &QAbstractButton::pressed, [this] () {
		selectPath(m_ui.patchPath, m_ui.patchSameDir);
	});

	if (m_ui.cheatsPath->text().isEmpty()) {
		m_ui.cheatsSameDir->setChecked(true);
	}
	connect(m_ui.cheatsSameDir, &QAbstractButton::toggled, [this] (bool e) {
		if (e) {
			m_ui.cheatsPath->clear();
		}
	});
	connect(m_ui.cheatsBrowse, &QAbstractButton::pressed, [this] () {
		selectPath(m_ui.cheatsPath, m_ui.cheatsSameDir);
	});
	connect(m_ui.bgImageBrowse, &QAbstractButton::pressed, [this] () {
		selectImage(m_ui.bgImage);
	});
	connect(m_ui.clearCache, &QAbstractButton::pressed, this, &SettingsView::libraryCleared);

	// TODO: Move to reloadConfig()
	QVariant audioDriver = m_controller->getQtOption("audioDriver");
#ifdef BUILD_QT_MULTIMEDIA
	m_ui.audioDriver->addItem(tr("Qt Multimedia"), static_cast<int>(AudioProcessor::Driver::QT_MULTIMEDIA));
	if (!audioDriver.isNull() && audioDriver.toInt() == static_cast<int>(AudioProcessor::Driver::QT_MULTIMEDIA)) {
		m_ui.audioDriver->setCurrentIndex(m_ui.audioDriver->count() - 1);
	}
#endif

#ifdef BUILD_SDL
	m_ui.audioDriver->addItem(tr("SDL"), static_cast<int>(AudioProcessor::Driver::SDL));
	if (audioDriver.isNull() || audioDriver.toInt() == static_cast<int>(AudioProcessor::Driver::SDL)) {
		m_ui.audioDriver->setCurrentIndex(m_ui.audioDriver->count() - 1);
	}
#endif

	// TODO: Move to reloadConfig()
	QVariant displayDriver = m_controller->getQtOption("displayDriver");
	m_ui.displayDriver->addItem(tr("Software (Qt)"), static_cast<int>(Display::Driver::QT));
	if (!displayDriver.isNull() && displayDriver.toInt() == static_cast<int>(Display::Driver::QT)) {
		m_ui.displayDriver->setCurrentIndex(m_ui.displayDriver->count() - 1);
	}

#if defined(BUILD_GL) || defined(BUILD_GLES2) || defined(USE_EPOXY)
	m_ui.displayDriver->addItem(tr("OpenGL"), static_cast<int>(Display::Driver::OPENGL));
	if (displayDriver.isNull() || displayDriver.toInt() == static_cast<int>(Display::Driver::OPENGL)) {
		m_ui.displayDriver->setCurrentIndex(m_ui.displayDriver->count() - 1);
	}
#endif

#ifdef BUILD_GL
	m_ui.displayDriver->addItem(tr("OpenGL (force version 1.x)"), static_cast<int>(Display::Driver::OPENGL1));
	if (!displayDriver.isNull() && displayDriver.toInt() == static_cast<int>(Display::Driver::OPENGL1)) {
		m_ui.displayDriver->setCurrentIndex(m_ui.displayDriver->count() - 1);
	}
#endif

	ApplicationUpdater* updater = GBAApp::app()->updater();
	m_ui.currentChannel->setText(ApplicationUpdater::readableChannel());
	m_ui.currentVersion->setText(ApplicationUpdater::currentVersion());
	QDateTime lastCheck = updater->lastCheck();
	if (!lastCheck.isNull()) {
		m_ui.lastChecked->setText(lastCheck.toLocalTime().toString());
	}
	connect(m_ui.checkUpdate, &QAbstractButton::pressed, updater, &ApplicationUpdater::checkUpdate);
	connect(updater, &ApplicationUpdater::updateAvailable, this, [this, updater](bool hasUpdate) {
		updateChecked();
		if (hasUpdate) {
			m_ui.availVersion->setText(updater->updateInfo());
		}
	});
	for (const QString& channel : ApplicationUpdater::listChannels()) {
		m_ui.updateChannel->addItem(ApplicationUpdater::readableChannel(channel), channel);
		if (channel == ApplicationUpdater::currentChannel()) {
			m_ui.updateChannel->setCurrentIndex(m_ui.updateChannel->count() - 1);
		}
	}
	connect(m_ui.updateChannel, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, [this, updater](int) {
		QString channel = m_ui.updateChannel->currentData().toString();
		updater->setChannel(channel);
		auto updates = updater->listUpdates();
		if (updates.contains(channel)) {
			m_ui.availVersion->setText(updates[channel]);
		} else {
			m_ui.availVersion->setText(tr("None"));
		}
	});
	m_ui.availVersion->setText(updater->updateInfo());

	// TODO: Move to reloadConfig()
	QVariant cameraDriver = m_controller->getQtOption("cameraDriver");
	m_ui.cameraDriver->addItem(tr("None (Still Image)"), static_cast<int>(InputController::CameraDriver::NONE));
	if (cameraDriver.isNull() || cameraDriver.toInt() == static_cast<int>(InputController::CameraDriver::NONE)) {
		m_ui.cameraDriver->setCurrentIndex(m_ui.cameraDriver->count() - 1);
		m_ui.camera->setEnabled(false);
	}

#ifdef BUILD_QT_MULTIMEDIA
	m_ui.cameraDriver->addItem(tr("Qt Multimedia"), static_cast<int>(InputController::CameraDriver::QT_MULTIMEDIA));
	if (!cameraDriver.isNull() && cameraDriver.toInt() == static_cast<int>(InputController::CameraDriver::QT_MULTIMEDIA)) {
		m_ui.cameraDriver->setCurrentIndex(m_ui.cameraDriver->count() - 1);
		m_ui.camera->setEnabled(true);
	}
	QList<QPair<QByteArray, QString>> cameras = inputController->listCameras();
	QByteArray currentCamera = m_controller->getQtOption("camera").toByteArray();
	for (const auto& camera : cameras) {
		m_ui.camera->addItem(camera.second, camera.first);
		if (camera.first == currentCamera) {
			m_ui.camera->setCurrentIndex(m_ui.camera->count() - 1);
		}
	}
#endif

#ifdef M_CORE_GBA
	connect(m_ui.gbaBiosBrowse, &QPushButton::clicked, [this]() {
		selectBios(m_ui.gbaBios);
	});
#else
	m_ui.gbaBiosBrowse->hide();
#endif

#ifdef M_CORE_GB
	connect(m_ui.gbBiosBrowse, &QPushButton::clicked, [this]() {
		selectBios(m_ui.gbBios);
	});
	connect(m_ui.gbcBiosBrowse, &QPushButton::clicked, [this]() {
		selectBios(m_ui.gbcBios);
	});
	connect(m_ui.sgbBiosBrowse, &QPushButton::clicked, [this]() {
		selectBios(m_ui.sgbBios);
	});

	QList<QColor> defaultColors;
	defaultColors.append(QColor(0xF8, 0xF8, 0xF8));
	defaultColors.append(QColor(0xA8, 0xA8, 0xA8));
	defaultColors.append(QColor(0x50, 0x50, 0x50));
	defaultColors.append(QColor(0x00, 0x00, 0x00));
	defaultColors.append(QColor(0xF8, 0xF8, 0xF8));
	defaultColors.append(QColor(0xA8, 0xA8, 0xA8));
	defaultColors.append(QColor(0x50, 0x50, 0x50));
	defaultColors.append(QColor(0x00, 0x00, 0x00));
	defaultColors.append(QColor(0xF8, 0xF8, 0xF8));
	defaultColors.append(QColor(0xA8, 0xA8, 0xA8));
	defaultColors.append(QColor(0x50, 0x50, 0x50));
	defaultColors.append(QColor(0x00, 0x00, 0x00));
	QList<QWidget*> colors{
		m_ui.color0,
		m_ui.color1,
		m_ui.color2,
		m_ui.color3,
		m_ui.color4,
		m_ui.color5,
		m_ui.color6,
		m_ui.color7,
		m_ui.color8,
		m_ui.color9,
		m_ui.color10,
		m_ui.color11
	};
	for (int colorId = 0; colorId < 12; ++colorId) {
		bool ok;
		uint color = m_controller->getOption(QString("gb.pal[%0]").arg(colorId)).toUInt(&ok);
		if (ok) {
			defaultColors[colorId] = QColor::fromRgb(color);
			m_gbColors[colorId] = color | 0xFF000000;
		} else {
			m_gbColors[colorId] = defaultColors[colorId].rgb() & ~0xFF000000;
		}
		m_colorPickers[colorId] = ColorPicker(colors[colorId], defaultColors[colorId]);
		connect(&m_colorPickers[colorId], &ColorPicker::colorChanged, this, [this, colorId](const QColor& color) {
			m_gbColors[colorId] = color.rgb();
		});
	}

	const GBColorPreset* colorPresets;
	QString usedPreset = m_controller->getQtOption("gb.pal").toString();
	size_t nPresets = GBColorPresetList(&colorPresets);
	for (size_t i = 0; i < nPresets; ++i) {
		QString presetName(colorPresets[i].name);
		m_ui.colorPreset->addItem(presetName);
		if (usedPreset == presetName) {
			m_ui.colorPreset->setCurrentIndex(i);
		}
	}
	connect(m_ui.colorPreset, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, [this, colorPresets](int n) {
		const GBColorPreset* preset = &colorPresets[n];
		for (int colorId = 0; colorId < 12; ++colorId) {
			uint32_t color = preset->colors[colorId] | 0xFF000000;
			m_colorPickers[colorId].setColor(color);
			m_gbColors[colorId] = color;
		}
	});
#else
	m_ui.gbBiosBrowse->hide();
	m_ui.gbcBiosBrowse->hide();
	m_ui.sgbBiosBrowse->hide();
	m_ui.gb->hide();
#endif

	GBAKeyEditor* editor = new GBAKeyEditor(inputController, InputController::KEYBOARD, QString(), this);
	addPage(tr("Keyboard"), editor, Page::KEYBOARD);
	connect(m_ui.buttonBox, &QDialogButtonBox::accepted, editor, &GBAKeyEditor::save);

	GBAKeyEditor* buttonEditor = nullptr;
#ifdef BUILD_SDL
	QString profile = inputController->profileForType(SDL_BINDING_BUTTON);
	buttonEditor = new GBAKeyEditor(inputController, SDL_BINDING_BUTTON, profile);
	addPage(tr("Controllers"), buttonEditor, Page::CONTROLLERS);
	connect(m_ui.buttonBox, &QDialogButtonBox::accepted, buttonEditor, &GBAKeyEditor::save);
#endif

	connect(m_ui.buttonBox, &QDialogButtonBox::accepted, this, &SettingsView::updateConfig);
	connect(m_ui.buttonBox, &QDialogButtonBox::clicked, [this, editor, buttonEditor](QAbstractButton* button) {
		if (m_ui.buttonBox->buttonRole(button) == QDialogButtonBox::ApplyRole) {
			updateConfig();
			editor->save();
			if (buttonEditor) {
				buttonEditor->save();
			}
		}
	});

	QLocale englishLocale("en");
	m_ui.languages->addItem(englishLocale.nativeLanguageName(), englishLocale);
	QDir ts(":/translations/");
	for (auto& name : ts.entryList()) {
		if (!name.endsWith(".qm") || !name.startsWith(binaryName)) {
			continue;
		}
		QLocale locale(name.remove(QString("%0-").arg(binaryName)).remove(".qm"));
		if (locale.language() == QLocale::English) {
			continue;
		}
		m_ui.languages->addItem(locale.nativeLanguageName(), locale);
		if (locale.bcp47Name() == QLocale().bcp47Name()) {
			m_ui.languages->setCurrentIndex(m_ui.languages->count() - 1);
		}
	}

	m_ui.loggingView->setModel(&m_logModel);
	m_ui.loggingView->setItemDelegate(new CheckBoxDelegate(m_ui.loggingView));
	m_ui.loggingView->setHorizontalHeader(new RotatedHeaderView(Qt::Horizontal));
	m_ui.loggingView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
	m_ui.loggingView->verticalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
	connect(m_ui.loggingView, SIGNAL(clicked(QModelIndex)), m_ui.loggingView, SLOT(setCurrentIndex(QModelIndex)));

	connect(m_ui.logFileBrowse, &QAbstractButton::pressed, [this] () {
		QString path = GBAApp::app()->getSaveFileName(this, "Select log file");
		if (!path.isNull()) {
			m_ui.logFile->setText(path);
		}
	});

	m_checkTimer.setInterval(60);
	m_checkTimer.setSingleShot(false);
	connect(&m_checkTimer, &QTimer::timeout, this, &SettingsView::updateChecked);
	m_checkTimer.start();
	updateChecked();

	ShortcutView* shortcutView = new ShortcutView();
	shortcutView->setController(shortcutController);
	shortcutView->setInputController(inputController);
	addPage(tr("Shortcuts"), shortcutView, Page::SHORTCUTS);
}

SettingsView::~SettingsView() {
#if defined(BUILD_GL) || defined(BUILD_GLES2)
	setShaderSelector(nullptr);
#endif
}

void SettingsView::setShaderSelector(ShaderSelector* shaderSelector) {
#if defined(BUILD_GL) || defined(BUILD_GLES2)
	if (m_shader) {
		auto items = m_ui.tabs->findItems(tr("Shaders"), Qt::MatchFixedString);
		for (const auto& item : items) {
			m_ui.tabs->removeItemWidget(item);
		}
		m_ui.stackedWidget->removeWidget(m_shader);
		m_shader->setParent(nullptr);
	}
	m_shader = shaderSelector;
	if (shaderSelector) {
		m_ui.stackedWidget->addWidget(m_shader);
		m_ui.tabs->addItem(tr("Shaders"));
		connect(m_ui.buttonBox, &QDialogButtonBox::accepted, m_shader, &ShaderSelector::saved);
	}
#endif
}

void SettingsView::selectPage(SettingsView::Page page) {
	m_ui.tabs->setCurrentRow(m_pageIndex[page]);
}

QString SettingsView::makePortablePath(const QString& path) {
	if (m_controller->isPortable()) {
		QDir configDir(m_controller->configDir());
		QFileInfo pathInfo(path);
		if (pathInfo.canonicalPath() == configDir.canonicalPath()) {
			return configDir.relativeFilePath(pathInfo.canonicalFilePath());
		}
	}
	return path;
}

void SettingsView::selectBios(QLineEdit* bios) {
	QString filename = GBAApp::app()->getOpenFileName(this, tr("Select BIOS"));
	if (!filename.isEmpty()) {
		bios->setText(makePortablePath(filename));
	}
}

void SettingsView::selectPath(QLineEdit* field, QCheckBox* sameDir) {
	QString path = GBAApp::app()->getOpenDirectoryName(this, tr("Select directory"));
	if (!path.isNull()) {
		sameDir->setChecked(false);
		field->setText(makePortablePath(path));
	}
}

void SettingsView::selectImage(QLineEdit* field) {
	QString path = GBAApp::app()->getOpenFileName(this, tr("Select image"), tr("Image file (*.png *.jpg *.jpeg)"));
	if (!path.isNull()) {
		field->setText(makePortablePath(path));
	}
}

void SettingsView::updateConfig() {
	saveSetting("gba.bios", m_ui.gbaBios);
	saveSetting("gb.bios", m_ui.gbBios);
	saveSetting("gbc.bios", m_ui.gbcBios);
	saveSetting("sgb.bios", m_ui.sgbBios);
	saveSetting("sgb.borders", m_ui.sgbBorders);
	saveSetting("useBios", m_ui.useBios);
	saveSetting("skipBios", m_ui.skipBios);
	saveSetting("sampleRate", m_ui.sampleRate);
	saveSetting("videoSync", m_ui.videoSync);
	saveSetting("audioSync", m_ui.audioSync);
	saveSetting("frameskip", m_ui.frameskip);
	saveSetting("autofireThreshold", m_ui.autofireThreshold);
	saveSetting("lockAspectRatio", m_ui.lockAspectRatio);
	saveSetting("lockIntegerScaling", m_ui.lockIntegerScaling);
	saveSetting("interframeBlending", m_ui.interframeBlending);
	saveSetting("showOSD", m_ui.showOSD);
	saveSetting("showFrameCounter", m_ui.showFrameCounter);
	saveSetting("showResetInfo", m_ui.showResetInfo);
	saveSetting("volume", m_ui.volume);
	saveSetting("mute", m_ui.mute);
	saveSetting("fastForwardVolume", m_ui.volumeFf);
	saveSetting("fastForwardMute", m_ui.muteFf);
	saveSetting("rewindEnable", m_ui.rewind);
	saveSetting("rewindBufferCapacity", m_ui.rewindCapacity);
	saveSetting("rewindBufferInterval", m_ui.rewindBufferInterval);
	saveSetting("resampleVideo", m_ui.resampleVideo);
	saveSetting("allowOpposingDirections", m_ui.allowOpposingDirections);
	saveSetting("suspendScreensaver", m_ui.suspendScreensaver);
	saveSetting("pauseOnFocusLost", m_ui.pauseOnFocusLost);
	saveSetting("pauseOnMinimize", m_ui.pauseOnMinimize);
	saveSetting("muteOnFocusLost", m_ui.muteOnFocusLost);
	saveSetting("muteOnMinimize", m_ui.muteOnMinimize);
	saveSetting("savegamePath", m_ui.savegamePath);
	saveSetting("savestatePath", m_ui.savestatePath);
	saveSetting("screenshotPath", m_ui.screenshotPath);
	saveSetting("patchPath", m_ui.patchPath);
	saveSetting("cheatsPath", m_ui.cheatsPath);
	saveSetting("libraryStyle", m_ui.libraryStyle->currentIndex());
	saveSetting("showLibrary", m_ui.showLibrary);
	saveSetting("preload", m_ui.preload);
	saveSetting("showFps", m_ui.showFps);
	saveSetting("cheatAutoload", m_ui.cheatAutoload);
	saveSetting("cheatAutosave", m_ui.cheatAutosave);
	saveSetting("showFilename", m_ui.showFilename);
	saveSetting("autoload", m_ui.autoload);
	saveSetting("autosave", m_ui.autosave);
	saveSetting("logToFile", m_ui.logToFile);
	saveSetting("logToStdout", m_ui.logToStdout);
	saveSetting("logFile", m_ui.logFile);
	saveSetting("useDiscordPresence", m_ui.useDiscordPresence);
	saveSetting("dynamicTitle", m_ui.dynamicTitle);
	saveSetting("videoScale", m_ui.videoScale);
	saveSetting("gba.forceGbp", m_ui.forceGbp);
	saveSetting("vbaBugCompat", m_ui.vbaBugCompat);
	saveSetting("updateAutoCheck", m_ui.updateAutoCheck);
	saveSetting("showFilenameInLibrary", m_ui.showFilenameInLibrary);
	saveSetting("backgroundImage", m_ui.bgImage);

	if (m_ui.audioBufferSize->currentText().toInt() > 8192) {
		m_ui.audioBufferSize->setCurrentText("8192");
	}
	saveSetting("audioBuffers", m_ui.audioBufferSize);

	if (m_ui.fastForwardUnbounded->isChecked()) {
		saveSetting("fastForwardRatio", "-1");
	} else {
		saveSetting("fastForwardRatio", m_ui.fastForwardRatio);
	}

	double nativeFps = double(GBA_ARM7TDMI_FREQUENCY) / double(VIDEO_TOTAL_LENGTH);
	if (fabs(nativeFps - m_ui.fpsTarget->value()) < 0.0001) {
		m_controller->setOption("fpsTarget", QVariant(nativeFps));
	} else {
		saveSetting("fpsTarget", m_ui.fpsTarget);
	}

	if (m_ui.fastForwardHeldUnbounded->isChecked()) {
		saveSetting("fastForwardHeldRatio", "-1");
	} else {
		saveSetting("fastForwardHeldRatio", m_ui.fastForwardHeldRatio);
	}

	switch (m_ui.idleOptimization->currentIndex() + IDLE_LOOP_IGNORE) {
	case IDLE_LOOP_IGNORE:
		saveSetting("idleOptimization", "ignore");
		break;
	case IDLE_LOOP_REMOVE:
		saveSetting("idleOptimization", "remove");
		break;
	case IDLE_LOOP_DETECT:
		saveSetting("idleOptimization", "detect");
		break;
	}

	int loadState = SAVESTATE_RTC;
	loadState |= m_ui.loadStateScreenshot->isChecked() ? SAVESTATE_SCREENSHOT : 0;
	loadState |= m_ui.loadStateSave->isChecked() ? SAVESTATE_SAVEDATA : 0;
	loadState |= m_ui.loadStateCheats->isChecked() ? SAVESTATE_CHEATS : 0;
	saveSetting("loadStateExtdata", loadState);

	int saveState = SAVESTATE_RTC | SAVESTATE_METADATA;
	saveState |= m_ui.saveStateScreenshot->isChecked() ? SAVESTATE_SCREENSHOT : 0;
	saveState |= m_ui.saveStateSave->isChecked() ? SAVESTATE_SAVEDATA : 0;
	saveState |= m_ui.saveStateCheats->isChecked() ? SAVESTATE_CHEATS : 0;
	saveSetting("saveStateExtdata", saveState);

	QVariant audioDriver = m_ui.audioDriver->itemData(m_ui.audioDriver->currentIndex());
	if (audioDriver != m_controller->getQtOption("audioDriver")) {
		m_controller->setQtOption("audioDriver", audioDriver);
		AudioProcessor::setDriver(static_cast<AudioProcessor::Driver>(audioDriver.toInt()));
		emit audioDriverChanged();
	}

	QVariant displayDriver = m_ui.displayDriver->itemData(m_ui.displayDriver->currentIndex());
	if (displayDriver != m_controller->getQtOption("displayDriver")) {
		m_controller->setQtOption("displayDriver", displayDriver);
		Display::setDriver(static_cast<Display::Driver>(displayDriver.toInt()));
		setShaderSelector(nullptr);
		emit displayDriverChanged();
	}

	QVariant cameraDriver = m_ui.cameraDriver->itemData(m_ui.cameraDriver->currentIndex());
	QVariant oldCameraDriver = m_controller->getQtOption("cameraDriver");
	if (cameraDriver != oldCameraDriver) {
		m_controller->setQtOption("cameraDriver", cameraDriver);
		if (cameraDriver.toInt() != static_cast<int>(InputController::CameraDriver::NONE) || !oldCameraDriver.isNull()) {
			emit cameraDriverChanged();
		}
	}

	QVariant camera = m_ui.camera->itemData(m_ui.camera->currentIndex());
	QVariant oldCamera = m_controller->getQtOption("camera");
	if (camera != oldCamera) {
		m_controller->setQtOption("camera", camera);
		if (!oldCamera.isNull()) {
			emit cameraChanged(camera.toByteArray());
		}
	}

	QLocale language = m_ui.languages->itemData(m_ui.languages->currentIndex()).toLocale();
	if (language != m_controller->getQtOption("language").toLocale() && !(language.bcp47Name() == QLocale::system().bcp47Name() && m_controller->getQtOption("language").isNull())) {
		m_controller->setQtOption("language", language.bcp47Name());
		emit languageChanged();
	}

	bool oldAudioHle = m_controller->getOption("gba.audioHle", "0") != "0";
	if (oldAudioHle != m_ui.audioHle->isChecked()) {
		saveSetting("gba.audioHle", m_ui.audioHle);
		emit audioHleChanged();
	}

	if (m_ui.multiplayerAudioAll->isChecked()) {
		m_controller->setQtOption("multiplayerAudio", "all");
	} else if (m_ui.multiplayerAudio1->isChecked()) {
		m_controller->setQtOption("multiplayerAudio", "p1");
	} else if (m_ui.multiplayerAudioActive->isChecked()) {
		m_controller->setQtOption("multiplayerAudio", "active");
	}

	int hwaccelVideo = m_controller->getOption("hwaccelVideo").toInt();
	saveSetting("hwaccelVideo", m_ui.hwaccelVideo->currentIndex());
	if (hwaccelVideo != m_ui.hwaccelVideo->currentIndex()) {
		emit videoRendererChanged();
	}

	m_logModel.save(m_controller);
	m_logModel.logger()->setLogFile(m_ui.logFile->text());
	m_logModel.logger()->logToFile(m_ui.logToFile->isChecked());
	m_logModel.logger()->logToStdout(m_ui.logToStdout->isChecked());

#ifdef M_CORE_GB
	QVariant modelGB = m_ui.gbModel->currentData();
	if (modelGB.isValid()) {
		m_controller->setOption("gb.model", GBModelToName(static_cast<GBModel>(modelGB.toInt())));
	}

	QVariant modelSGB = m_ui.sgbModel->currentData();
	if (modelSGB.isValid()) {
		m_controller->setOption("sgb.model", GBModelToName(static_cast<GBModel>(modelSGB.toInt())));
	}

	QVariant modelCGB = m_ui.cgbModel->currentData();
	if (modelCGB.isValid()) {
		m_controller->setOption("cgb.model", GBModelToName(static_cast<GBModel>(modelCGB.toInt())));
	}

	QVariant modelCGBHybrid = m_ui.cgbHybridModel->currentData();
	if (modelCGBHybrid.isValid()) {
		m_controller->setOption("cgb.hybridModel", GBModelToName(static_cast<GBModel>(modelCGBHybrid.toInt())));
	}

	QVariant modelCGBSGB = m_ui.cgbSgbModel->currentData();
	if (modelCGBSGB.isValid()) {
		m_controller->setOption("cgb.sgbModel", GBModelToName(static_cast<GBModel>(modelCGBSGB.toInt())));
	}

	for (int colorId = 0; colorId < 12; ++colorId) {
		if (!(m_gbColors[colorId] & 0xFF000000)) {
			continue;
		}
		QString color = QString("gb.pal[%0]").arg(colorId);
		m_controller->setOption(color.toUtf8().constData(), m_gbColors[colorId] & ~0xFF000000);

	}
	m_controller->setQtOption("gb.pal", m_ui.colorPreset->currentText());

	int gbColors = GB_COLORS_CGB;
	if (m_ui.gbColor->isChecked()) {
		gbColors = GB_COLORS_NONE;
	} else if (m_ui.cgbColor->isChecked()) {
		gbColors = GB_COLORS_CGB;
	} else if (m_ui.sgbColor->isChecked()) {
		gbColors = GB_COLORS_SGB;
	} else if (m_ui.scgbColor->isChecked()) {
		gbColors = GB_COLORS_SGB_CGB_FALLBACK;
	}
	saveSetting("gb.colors", gbColors);
#endif

	m_controller->write();

	emit pathsChanged();
	emit biosLoaded(mPLATFORM_GBA, m_ui.gbaBios->text());
}

void SettingsView::reloadConfig() {
	loadSetting("bios", m_ui.gbaBios);
	loadSetting("gba.bios", m_ui.gbaBios);
	loadSetting("gb.bios", m_ui.gbBios);
	loadSetting("gbc.bios", m_ui.gbcBios);
	loadSetting("sgb.bios", m_ui.sgbBios);
	loadSetting("sgb.borders", m_ui.sgbBorders, true);
	loadSetting("useBios", m_ui.useBios);
	loadSetting("skipBios", m_ui.skipBios);
	loadSetting("audioBuffers", m_ui.audioBufferSize);
	loadSetting("sampleRate", m_ui.sampleRate);
	loadSetting("videoSync", m_ui.videoSync);
	loadSetting("audioSync", m_ui.audioSync);
	loadSetting("frameskip", m_ui.frameskip);
	loadSetting("fpsTarget", m_ui.fpsTarget);
	loadSetting("autofireThreshold", m_ui.autofireThreshold);
	loadSetting("lockAspectRatio", m_ui.lockAspectRatio);
	loadSetting("lockIntegerScaling", m_ui.lockIntegerScaling);
	loadSetting("interframeBlending", m_ui.interframeBlending);
	loadSetting("showOSD", m_ui.showOSD, true);
	loadSetting("showFrameCounter", m_ui.showFrameCounter);
	loadSetting("showResetInfo", m_ui.showResetInfo);
	loadSetting("volume", m_ui.volume, 0x100);
	loadSetting("mute", m_ui.mute, false);
	loadSetting("fastForwardVolume", m_ui.volumeFf, m_ui.volume->value());
	loadSetting("fastForwardMute", m_ui.muteFf, m_ui.mute->isChecked());
	loadSetting("rewindEnable", m_ui.rewind);
	loadSetting("rewindBufferCapacity", m_ui.rewindCapacity);
	loadSetting("rewindBufferInterval", m_ui.rewindBufferInterval);
	loadSetting("resampleVideo", m_ui.resampleVideo);
	loadSetting("allowOpposingDirections", m_ui.allowOpposingDirections);
	loadSetting("suspendScreensaver", m_ui.suspendScreensaver);
	loadSetting("pauseOnFocusLost", m_ui.pauseOnFocusLost);
	loadSetting("pauseOnMinimize", m_ui.pauseOnMinimize);
	loadSetting("muteOnFocusLost", m_ui.muteOnFocusLost);
	loadSetting("muteOnMinimize", m_ui.muteOnMinimize);
	loadSetting("savegamePath", m_ui.savegamePath);
	loadSetting("savestatePath", m_ui.savestatePath);
	loadSetting("screenshotPath", m_ui.screenshotPath);
	loadSetting("patchPath", m_ui.patchPath);
	loadSetting("cheatsPath", m_ui.cheatsPath);
	loadSetting("showLibrary", m_ui.showLibrary);
	loadSetting("preload", m_ui.preload);
	loadSetting("showFps", m_ui.showFps, true);
	loadSetting("cheatAutoload", m_ui.cheatAutoload, true);
	loadSetting("cheatAutosave", m_ui.cheatAutosave, true);
	loadSetting("showFilename", m_ui.showFilename, false);
	loadSetting("autoload", m_ui.autoload, true);
	loadSetting("autosave", m_ui.autosave, false);
	loadSetting("logToFile", m_ui.logToFile);
	loadSetting("logToStdout", m_ui.logToStdout);
	loadSetting("logFile", m_ui.logFile);
	loadSetting("useDiscordPresence", m_ui.useDiscordPresence);
	loadSetting("gba.audioHle", m_ui.audioHle);
	loadSetting("dynamicTitle", m_ui.dynamicTitle, true);
	loadSetting("gba.forceGbp", m_ui.forceGbp);
	loadSetting("vbaBugCompat", m_ui.vbaBugCompat, true);
	loadSetting("updateAutoCheck", m_ui.updateAutoCheck);
	loadSetting("showFilenameInLibrary", m_ui.showFilenameInLibrary);
	loadSetting("backgroundImage", m_ui.bgImage);

	m_ui.libraryStyle->setCurrentIndex(loadSetting("libraryStyle").toInt());

	double fastForwardRatio = loadSetting("fastForwardRatio").toDouble();
	if (fastForwardRatio <= 0) {
		m_ui.fastForwardUnbounded->setChecked(true);
		m_ui.fastForwardRatio->setEnabled(false);
	} else {
		m_ui.fastForwardUnbounded->setChecked(false);
		m_ui.fastForwardRatio->setEnabled(true);
		m_ui.fastForwardRatio->setValue(fastForwardRatio);
	}

	double fastForwardHeldRatio = loadSetting("fastForwardHeldRatio").toDouble();
	if (fastForwardHeldRatio <= 0) {
		m_ui.fastForwardHeldUnbounded->setChecked(true);
		m_ui.fastForwardHeldRatio->setEnabled(false);
	} else {
		m_ui.fastForwardHeldUnbounded->setChecked(false);
		m_ui.fastForwardHeldRatio->setEnabled(true);
		m_ui.fastForwardHeldRatio->setValue(fastForwardHeldRatio);
	}

	QString idleOptimization = loadSetting("idleOptimization");
	if (idleOptimization == "ignore") {
		m_ui.idleOptimization->setCurrentIndex(0);
	} else if (idleOptimization == "remove") {
		m_ui.idleOptimization->setCurrentIndex(1);
	} else if (idleOptimization == "detect") {
		m_ui.idleOptimization->setCurrentIndex(2);
	}

	bool ok;
	int loadState = loadSetting("loadStateExtdata").toInt(&ok);
	if (!ok) {
		loadState = SAVESTATE_SCREENSHOT | SAVESTATE_RTC;
	}
	m_ui.loadStateScreenshot->setChecked(loadState & SAVESTATE_SCREENSHOT);
	m_ui.loadStateSave->setChecked(loadState & SAVESTATE_SAVEDATA);
	m_ui.loadStateCheats->setChecked(loadState & SAVESTATE_CHEATS);

	int saveState = loadSetting("saveStateExtdata").toInt(&ok);
	if (!ok) {
		saveState = SAVESTATE_SCREENSHOT | SAVESTATE_SAVEDATA | SAVESTATE_CHEATS | SAVESTATE_RTC | SAVESTATE_METADATA;
	}
	m_ui.saveStateScreenshot->setChecked(saveState & SAVESTATE_SCREENSHOT);
	m_ui.saveStateSave->setChecked(saveState & SAVESTATE_SAVEDATA);
	m_ui.saveStateCheats->setChecked(saveState & SAVESTATE_CHEATS);

	m_logModel.reset();

#ifdef M_CORE_GB
	QString modelGB = m_controller->getOption("gb.model");
	if (!modelGB.isNull()) {
		GBModel model = GBNameToModel(modelGB.toUtf8().constData());
		int index = m_ui.gbModel->findData(model);
		m_ui.gbModel->setCurrentIndex(index >= 0 ? index : 0);
	}

	QString modelSGB = m_controller->getOption("sgb.model");
	if (!modelSGB.isNull()) {
		GBModel model = GBNameToModel(modelSGB.toUtf8().constData());
		int index = m_ui.sgbModel->findData(model);
		m_ui.sgbModel->setCurrentIndex(index >= 0 ? index : 0);
	}

	QString modelCGB = m_controller->getOption("cgb.model");
	if (!modelCGB.isNull()) {
		GBModel model = GBNameToModel(modelCGB.toUtf8().constData());
		int index = m_ui.cgbModel->findData(model);
		m_ui.cgbModel->setCurrentIndex(index >= 0 ? index : 0);
	}

	QString modelCGBHybrid = m_controller->getOption("cgb.hybridModel");
	if (!modelCGBHybrid.isNull()) {
		GBModel model = GBNameToModel(modelCGBHybrid.toUtf8().constData());
		int index = m_ui.cgbHybridModel->findData(model);
		m_ui.cgbHybridModel->setCurrentIndex(index >= 0 ? index : 0);
	}

	QString modelCGBSGB = m_controller->getOption("cgb.sgbModel");
	if (!modelCGBSGB.isNull()) {
		GBModel model = GBNameToModel(modelCGBSGB.toUtf8().constData());
		int index = m_ui.cgbSgbModel->findData(model);
		m_ui.cgbSgbModel->setCurrentIndex(index >= 0 ? index : 0);
	}

	switch (m_controller->getOption("gb.colors", m_controller->getOption("useCgbColors", true).toInt()).toInt()) {
	case GB_COLORS_NONE:
		m_ui.gbColor->setChecked(true);
		break;
	default:
	case GB_COLORS_CGB:
		m_ui.cgbColor->setChecked(true);
		break;
	case GB_COLORS_SGB:
		m_ui.sgbColor->setChecked(true);
		break;
	case GB_COLORS_SGB_CGB_FALLBACK:
		m_ui.scgbColor->setChecked(true);
		break;
	}
#endif

	int hwaccelVideo = m_controller->getOption("hwaccelVideo", 0).toInt();
	m_ui.hwaccelVideo->setCurrentIndex(hwaccelVideo);

	connect(m_ui.videoScale, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged), [this](int value) {
		m_ui.videoScaleSize->setText(tr("(%1×%2)").arg(GBA_VIDEO_HORIZONTAL_PIXELS * value).arg(GBA_VIDEO_VERTICAL_PIXELS * value));
	});
	loadSetting("videoScale", m_ui.videoScale, 1);

	QString multiplayerAudio = m_controller->getQtOption("multiplayerAudio").toString();
	if (multiplayerAudio == QLatin1String("p1")) {
		m_ui.multiplayerAudio1->setChecked(true);
	} else if (multiplayerAudio == QLatin1String("active")) {
		m_ui.multiplayerAudioActive->setChecked(true);
	} else {
		m_ui.multiplayerAudioAll->setChecked(true);
	}
}

void SettingsView::updateChecked() {
	QDateTime now(QDateTime::currentDateTimeUtc());
	QDateTime lastCheck(GBAApp::app()->updater()->lastCheck());
	if (!lastCheck.isValid()) {
		m_ui.lastChecked->setText(tr("Never"));
		return;
	}
	qint64 ago = GBAApp::app()->updater()->lastCheck().secsTo(now);
	if (ago < 60) {
		m_ui.lastChecked->setText(tr("Just now"));
		return;
	}
	if (ago < 3600) {
		m_ui.lastChecked->setText(tr("Less than an hour ago"));
		return;
	}
	ago /= 3600;
	if (ago < 24) {
		m_ui.lastChecked->setText(tr("%n hour(s) ago", nullptr, ago));
		return;
	}
	ago /= 24;
	m_ui.lastChecked->setText(tr("%n day(s) ago", nullptr, ago));
}

void SettingsView::addPage(const QString& name, QWidget* view, Page index) {
	m_pageIndex[index] = m_ui.tabs->count();
	m_ui.tabs->addItem(name);
	m_ui.stackedWidget->addWidget(view);
}

void SettingsView::saveSetting(const char* key, const QAbstractButton* field) {
	m_controller->setOption(key, field->isChecked());
	m_controller->updateOption(key);
}

void SettingsView::saveSetting(const char* key, const QComboBox* field) {
	saveSetting(key, field->lineEdit());
}

void SettingsView::saveSetting(const char* key, const QDoubleSpinBox* field) {
	saveSetting(key, field->value());
}

void SettingsView::saveSetting(const char* key, const QLineEdit* field) {
	saveSetting(key, field->text());
}

void SettingsView::saveSetting(const char* key, const QSlider* field) {
	saveSetting(key, field->value());
}

void SettingsView::saveSetting(const char* key, const QSpinBox* field) {
	saveSetting(key, field->value());
}

void SettingsView::saveSetting(const char* key, const QVariant& field) {
	m_controller->setOption(key, field);
	m_controller->updateOption(key);
}

void SettingsView::loadSetting(const char* key, QAbstractButton* field, bool defaultVal) {
	QString option = loadSetting(key);
	field->setChecked(option.isNull() ? defaultVal : option != "0");
}

void SettingsView::loadSetting(const char* key, QComboBox* field) {
	loadSetting(key, field->lineEdit());
}

void SettingsView::loadSetting(const char* key, QDoubleSpinBox* field) {
	QString option = loadSetting(key);
	field->setValue(option.toDouble());
}

void SettingsView::loadSetting(const char* key, QLineEdit* field) {
	QString option = loadSetting(key);
	field->setText(option);
}

void SettingsView::loadSetting(const char* key, QSlider* field, int defaultVal) {
	QString option = loadSetting(key);
	field->setValue(option.isNull() ? defaultVal : option.toInt());
}

void SettingsView::loadSetting(const char* key, QSpinBox* field, int defaultVal) {
	QString option = loadSetting(key);
	field->setValue(option.isNull() ? defaultVal : option.toInt());
}

QString SettingsView::loadSetting(const char* key) {
	return m_controller->getOption(key);
}
