// Copyright 2007-2021 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.

/* Copyright (C) 2005-2011, Thorvald Natvig <thorvald@natvig.com>
   Copyright (C) 2008, Andreas Messer <andi@bupfen.de>

   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   - Redistributions of source code must retain the above copyright notice,
	 this list of conditions and the following disclaimer.
   - Redistributions in binary form must reproduce the above copyright notice,
	 this list of conditions and the following disclaimer in the documentation
	 and/or other materials provided with the distribution.
   - Neither the name of the Mumble Developers nor the names of its
	 contributors may be used to endorse or promote products derived from this
	 software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "AudioConfigDialog.h"

#include "AudioInput.h"
#include "AudioOutput.h"
#include "AudioOutputSample.h"
#include "NetworkConfig.h"
#include "Utils.h"
#include "Global.h"

const QString AudioOutputDialog::name = QLatin1String("AudioOutputWidget");
const QString AudioInputDialog::name  = QLatin1String("AudioInputWidget");


static ConfigWidget *AudioInputDialogNew(Settings &st) {
	return new AudioInputDialog(st);
}

static ConfigWidget *AudioOutputDialogNew(Settings &st) {
	return new AudioOutputDialog(st);
}

static ConfigRegistrar registrarAudioInputDialog(1000, AudioInputDialogNew);
static ConfigRegistrar registrarAudioOutputDialog(1010, AudioOutputDialogNew);

void AudioInputDialog::hideEvent(QHideEvent *) {
	qtTick->stop();
}

void AudioInputDialog::showEvent(QShowEvent *) {
	qtTick->start(20);

	// In case the user has changed the audio output device and is now coming
	// back.
	updateEchoEnableState();
}

AudioInputDialog::AudioInputDialog(Settings &st) : ConfigWidget(st) {
	qtTick = new QTimer(this);
	qtTick->setObjectName(QLatin1String("Tick"));

	setupUi(this);

	qcbSystem->setAccessibleName(tr("Audio system"));
	qcbDevice->setAccessibleName(tr("Input device"));
	qcbEcho->setAccessibleName(tr("Echo cancellation mode"));
	qcbTransmit->setAccessibleName(tr("Transmission mode"));
	qsDoublePush->setAccessibleName(tr("PTT lock threshold"));
	qsPTTHold->setAccessibleName(tr("PTT hold threshold"));
	qsTransmitHold->setAccessibleName(tr("Silence below"));
	abSpeech->setAccessibleName(tr("Current speech detection chance"));
	qsTransmitMin->setAccessibleName(tr("Speech above"));
	qsTransmitMax->setAccessibleName(tr("Speech below"));
	qsFrames->setAccessibleName(tr("Audio per packet"));
	qsQuality->setAccessibleName(tr("Quality of compression (peak bandwidth)"));
	qsSpeexNoiseSupStrength->setAccessibleName(tr("Noise suppression"));
	qsAmp->setAccessibleName(tr("Maximum amplification"));
	qlePushClickPathOn->setAccessibleName(tr("Transmission started sound"));
	qlePushClickPathOff->setAccessibleName(tr("Transmission stopped sound"));
	qsbIdle->setAccessibleName(tr("Initiate idle action after (in minutes)"));
	qcbIdleAction->setAccessibleName(tr("Idle action"));
	qlInputHelp->setVisible(false);

	if (AudioInputRegistrar::qmNew) {
		QList< QString > keys = AudioInputRegistrar::qmNew->keys();
		foreach (QString key, keys) { qcbSystem->addItem(key); }
	}
	qcbSystem->setEnabled(qcbSystem->count() > 1);

	qcbTransmit->addItem(tr("Continuous"), Settings::Continuous);
	qcbTransmit->addItem(tr("Voice Activity"), Settings::VAD);
	qcbTransmit->addItem(tr("Push To Talk"), Settings::PushToTalk);

	abSpeech->qcBelow  = Qt::red;
	abSpeech->qcInside = Qt::yellow;
	abSpeech->qcAbove  = Qt::green;

	qcbDevice->view()->setTextElideMode(Qt::ElideRight);

	on_qcbPushClick_clicked(Global::get().s.bTxAudioCue);
	on_Tick_timeout();
	on_qcbIdleAction_currentIndexChanged(Global::get().s.iaeIdleAction);

	// Hide the slider by default
	showSpeexNoiseSuppressionSlider(false);

#ifndef USE_RNNOISE
	// Hide options related to RNNoise
	qrbNoiseSupRNNoise->setVisible(false);
	qrbNoiseSupBoth->setVisible(false);
#endif
}

QString AudioInputDialog::title() const {
	return tr("Audio Input");
}

const QString &AudioInputDialog::getName() const {
	return AudioInputDialog::name;
}

QIcon AudioInputDialog::icon() const {
	return QIcon(QLatin1String("skin:config_audio_input.png"));
}

void AudioInputDialog::load(const Settings &r) {
	int i;
	QList< QString > keys;

	if (AudioInputRegistrar::qmNew)
		keys = AudioInputRegistrar::qmNew->keys();
	else
		keys.clear();
	i = keys.indexOf(AudioInputRegistrar::current);
	if (i >= 0)
		loadComboBox(qcbSystem, i);

	verifyMicrophonePermission();

	loadCheckBox(qcbExclusive, r.bExclusiveInput);

	qlePushClickPathOn->setText(r.qsTxAudioCueOn);
	qlePushClickPathOff->setText(r.qsTxAudioCueOff);

	loadComboBox(qcbTransmit, r.atTransmit);
	loadSlider(qsTransmitHold, r.iVoiceHold);
	loadSlider(qsTransmitMin, iroundf(r.fVADmin * 32767.0f + 0.5f));
	loadSlider(qsTransmitMax, iroundf(r.fVADmax * 32767.0f + 0.5f));
	loadSlider(qsFrames, (r.iFramesPerPacket == 1) ? 1 : (r.iFramesPerPacket / 2 + 1));
	loadSlider(qsDoublePush, iroundf(static_cast< float >(r.uiDoublePush) / 1000.f + 0.5f));
	loadSlider(qsPTTHold, static_cast< int >(r.pttHold));

	if (r.vsVAD == Settings::Amplitude)
		qrbAmplitude->setChecked(true);
	else
		qrbSNR->setChecked(true);

	loadCheckBox(qcbPushWindow, r.bShowPTTButtonWindow);
	loadCheckBox(qcbPushClick, r.bTxAudioCue);
	loadSlider(qsQuality, r.iQuality);
	loadCheckBox(qcbAllowLowDelay, r.bAllowLowDelay);
	if (r.iSpeexNoiseCancelStrength != 0) {
		loadSlider(qsSpeexNoiseSupStrength, -r.iSpeexNoiseCancelStrength);
	} else {
		loadSlider(qsSpeexNoiseSupStrength, 14);
	}

	bool allowRNNoise = SAMPLE_RATE == 48000;

	if (!allowRNNoise) {
		const QString tooltip = QObject::tr("RNNoise is not available due to a sample rate mismatch.");
		qrbNoiseSupRNNoise->setEnabled(false);
		qrbNoiseSupRNNoise->setToolTip(tooltip);
		qrbNoiseSupBoth->setEnabled(false);
		qrbNoiseSupBoth->setToolTip(tooltip);
	}

	switch (r.noiseCancelMode) {
		case Settings::NoiseCancelOff:
			loadCheckBox(qrbNoiseSupDeactivated, true);
			break;
		case Settings::NoiseCancelSpeex:
			loadCheckBox(qrbNoiseSupSpeex, true);
			break;
		case Settings::NoiseCancelRNN:
#ifdef USE_RNNOISE
			if (allowRNNoise) {
				loadCheckBox(qrbNoiseSupRNNoise, true);
			} else {
				// We have to switch to speex as a fallback
				loadCheckBox(qrbNoiseSupSpeex, true);
			}
#else
			// We have to switch to speex as a fallback
			loadCheckBox(qrbNoiseSupSpeex, true);
#endif
			break;
		case Settings::NoiseCancelBoth:
#ifdef USE_RNNOISE
			if (allowRNNoise) {
				loadCheckBox(qrbNoiseSupBoth, true);
			} else {
				// We have to switch to speex as a fallback
				loadCheckBox(qrbNoiseSupSpeex, true);
			}
#else
			// We have to switch to speex as a fallback
			loadCheckBox(qrbNoiseSupSpeex, true);
#endif
			break;
	}

	loadSlider(qsAmp, 20000 - r.iMinLoudness);

	// Idle auto actions
	qsbIdle->setValue(r.iIdleTime / 60);
	loadComboBox(qcbIdleAction, r.iaeIdleAction);
	loadCheckBox(qcbUndoIdleAction, r.bUndoIdleActionUponActivity);

	updateEchoEnableState();
}

void AudioInputDialog::verifyMicrophonePermission() {
	if (!AudioInputRegistrar::qmNew) {
		return;
	}

	AudioInputRegistrar *air = AudioInputRegistrar::qmNew->value(qcbSystem->currentText());
	if (air->isMicrophoneAccessDeniedByOS()) {
		qcbDevice->setEnabled(false);
		if (air->name == QLatin1String("CoreAudio")) {
			qlInputHelp->setVisible(true);
			qlInputHelp->setText(
				tr("Access to the microphone was denied. Please allow Mumble to use the microphone "
				   "by changing the settings in System Preferences -> Security & Privacy -> Privacy -> "
				   "Microphone."));
		} else if (air->name == QLatin1String("WASAPI")) {
			qlInputHelp->setVisible(true);
			qlInputHelp->setText(tr("Access to the microphone was denied. Please check that your operating system's "
									"microphone settings allow Mumble to use the microphone."));
		}
	} else {
		qcbDevice->setEnabled(true);
		qlInputHelp->setVisible(false);
		qlInputHelp->setText("");
	}
}

void AudioInputDialog::save() const {
	s.iQuality                  = qsQuality->value();
	s.bAllowLowDelay            = qcbAllowLowDelay->isChecked();
	s.iSpeexNoiseCancelStrength = (qsSpeexNoiseSupStrength->value() == 14) ? 0 : -qsSpeexNoiseSupStrength->value();

	if (qrbNoiseSupDeactivated->isChecked()) {
		s.noiseCancelMode = Settings::NoiseCancelOff;
	} else if (qrbNoiseSupBoth->isChecked()) {
		s.noiseCancelMode = Settings::NoiseCancelBoth;
	} else if (qrbNoiseSupRNNoise->isChecked()) {
		s.noiseCancelMode = Settings::NoiseCancelRNN;
	} else {
		s.noiseCancelMode = Settings::NoiseCancelSpeex;
	}

	s.iMinLoudness     = 18000 - qsAmp->value() + 2000;
	s.iVoiceHold       = qsTransmitHold->value();
	s.fVADmin          = static_cast< float >(qsTransmitMin->value()) / 32767.0f;
	s.fVADmax          = static_cast< float >(qsTransmitMax->value()) / 32767.0f;
	s.vsVAD            = qrbSNR->isChecked() ? Settings::SignalToNoise : Settings::Amplitude;
	s.iFramesPerPacket = qsFrames->value();
	s.iFramesPerPacket = (s.iFramesPerPacket == 1) ? 1 : ((s.iFramesPerPacket - 1) * 2);
	s.uiDoublePush     = qsDoublePush->value() * 1000;
	s.pttHold          = qsPTTHold->value();
	s.atTransmit       = static_cast< Settings::AudioTransmit >(qcbTransmit->currentIndex());

	// Idle auto actions
	s.iIdleTime                   = qsbIdle->value() * 60;
	s.iaeIdleAction               = static_cast< Settings::IdleAction >(qcbIdleAction->currentIndex());
	s.bUndoIdleActionUponActivity = qcbUndoIdleAction->isChecked();

	s.bShowPTTButtonWindow = qcbPushWindow->isChecked();
	s.bTxAudioCue          = qcbPushClick->isChecked();
	s.qsTxAudioCueOn       = qlePushClickPathOn->text();
	s.qsTxAudioCueOff      = qlePushClickPathOff->text();

	s.qsAudioInput    = qcbSystem->currentText();
	s.echoOption      = static_cast< EchoCancelOptionID >(qcbEcho->currentData().toInt());
	s.bExclusiveInput = qcbExclusive->isChecked();

	if (AudioInputRegistrar::qmNew) {
		AudioInputRegistrar *air = AudioInputRegistrar::qmNew->value(qcbSystem->currentText());
		int idx                  = qcbDevice->currentIndex();
		if (idx > -1) {
			air->setDeviceChoice(qcbDevice->itemData(idx), s);
		}
	}
}

void AudioInputDialog::on_qsFrames_valueChanged(int v) {
	qlFrames->setText(tr("%1 ms").arg((v == 1) ? 10 : (v - 1) * 20));
	updateBitrate();
}

void AudioInputDialog::on_qsDoublePush_valueChanged(int v) {
	if (v == 0)
		qlDoublePush->setText(tr("Off"));
	else
		qlDoublePush->setText(tr("%1 ms").arg(v));
}

void AudioInputDialog::on_qsPTTHold_valueChanged(int v) {
	if (v == 0)
		qlPTTHold->setText(tr("Off"));
	else
		qlPTTHold->setText(tr("%1 ms").arg(v));
}

void AudioInputDialog::on_qsTransmitHold_valueChanged(int v) {
	float val = static_cast< float >(v * 10);
	val       = val / 1000.0f;
	qlTransmitHold->setText(tr("%1 s").arg(val, 0, 'f', 2));
}

void AudioInputDialog::on_qsQuality_valueChanged(int v) {
	qlQuality->setText(tr("%1 kb/s").arg(static_cast< float >(v) / 1000.0f, 0, 'f', 1));
	updateBitrate();
}

void AudioInputDialog::on_qsSpeexNoiseSupStrength_valueChanged(int v) {
	QPalette pal;

	if (v < 15) {
		qlSpeexNoiseSupStrength->setText(tr("Off"));
		pal.setColor(qlSpeexNoiseSupStrength->foregroundRole(), Qt::red);
	} else {
		qlSpeexNoiseSupStrength->setText(tr("-%1 dB").arg(v));
	}
	qlSpeexNoiseSupStrength->setPalette(pal);
}

void AudioInputDialog::on_qsAmp_valueChanged(int v) {
	v       = 18000 - v + 2000;
	float d = 20000.0f / static_cast< float >(v);
	qlAmp->setText(QString::fromLatin1("%1").arg(d, 0, 'f', 2));
}

void AudioInputDialog::updateBitrate() {
	if (!qsQuality || !qsFrames || !qlBitrate)
		return;
	int q = qsQuality->value();
	int p = qsFrames->value();

	int audiorate, overhead, posrate;

	audiorate = q;

	// 50 packets, in bits, IP + UDP + Crypt + type + seq + frameheader
	overhead = 100 * 8 * (20 + 8 + 4 + 1 + 2 + p);

	// TCP is 12 more bytes than UDP
	if (NetworkConfig::TcpModeEnabled())
		overhead += 100 * 8 * 12;

	if (Global::get().s.bTransmitPosition)
		posrate = 12;
	else
		posrate = 0;

	posrate = posrate * 100 * 8;

	overhead = overhead / p;
	posrate  = posrate / p;

	int total = audiorate + overhead + posrate;

	QPalette pal;

	if (Global::get().uiSession && (total > Global::get().iMaxBandwidth)) {
		pal.setColor(qlBitrate->foregroundRole(), Qt::red);
	}

	qlBitrate->setPalette(pal);

	QString v = tr("%1 kbit/s (Audio %2, Position %4, Overhead %3)")
					.arg(total / 1000.0, 0, 'f', 1)
					.arg(audiorate / 1000.0, 0, 'f', 1)
					.arg(overhead / 1000.0, 0, 'f', 1)
					.arg(posrate / 1000.0, 0, 'f', 1);

	qlBitrate->setText(v);

	qsQuality->setMinimum(8000);
}

void AudioInputDialog::on_qcbPushClick_clicked(bool b) {
	qpbPushClickBrowseOn->setEnabled(b);
	qpbPushClickBrowseOff->setEnabled(b);
	qpbPushClickPreview->setEnabled(b);
	qpbPushClickReset->setEnabled(b);
	qlePushClickPathOn->setEnabled(b);
	qlePushClickPathOff->setEnabled(b);
	qlPushClickOn->setEnabled(b);
	qlPushClickOff->setEnabled(b);
}

void AudioInputDialog::on_qpbPushClickBrowseOn_clicked() {
	QString defaultpath(qlePushClickPathOn->text());
	QString qsnew = AudioOutputSample::browseForSndfile(defaultpath);
	if (!qsnew.isEmpty())
		qlePushClickPathOn->setText(qsnew);
}

void AudioInputDialog::on_qpbPushClickBrowseOff_clicked() {
	QString defaultpath(qlePushClickPathOff->text());
	QString qsnew = AudioOutputSample::browseForSndfile(defaultpath);
	if (!qsnew.isEmpty())
		qlePushClickPathOff->setText(qsnew);
}

void AudioInputDialog::on_qpbPushClickPreview_clicked() {
	AudioOutputPtr ao = Global::get().ao;
	if (ao) {
		AudioOutputSample *sample = ao->playSample(qlePushClickPathOn->text());
		if (sample)
			connect(sample, SIGNAL(playbackFinished()), this, SLOT(continuePlayback()));
		else // If we fail to playback the first play on play at least off
			ao->playSample(qlePushClickPathOff->text());
	}
}

void AudioInputDialog::continuePlayback() {
	AudioOutputPtr ao = Global::get().ao;
	if (ao) {
		ao->playSample(qlePushClickPathOff->text());
	}
}

void AudioInputDialog::on_qpbPushClickReset_clicked() {
	qlePushClickPathOn->setText(Settings::cqsDefaultPushClickOn);
	qlePushClickPathOff->setText(Settings::cqsDefaultPushClickOff);
}

void AudioInputDialog::on_qcbTransmit_currentIndexChanged(int v) {
	switch (v) {
		case 0:
			qswTransmit->setCurrentWidget(qwContinuous);
			break;
		case 1:
			qswTransmit->setCurrentWidget(qwVAD);
			break;
		case 2:
			qswTransmit->setCurrentWidget(qwPTT);
			break;
	}
}

void AudioInputDialog::on_qcbSystem_currentIndexChanged(int) {
	qcbDevice->clear();

	QList< audioDevice > ql;

	if (AudioInputRegistrar::qmNew) {
		AudioInputRegistrar *air = AudioInputRegistrar::qmNew->value(qcbSystem->currentText());
		ql                       = air->getDeviceChoices();

		int idx = 0;

		foreach (audioDevice d, ql) {
			qcbDevice->addItem(d.first, d.second);
			qcbDevice->setItemData(idx, d.first.toHtmlEscaped(), Qt::ToolTipRole);
			++idx;
		}

		updateEchoEnableState();

		qcbExclusive->setEnabled(air->canExclusive());
	}

	qcbDevice->setEnabled(ql.count() > 1);
	verifyMicrophonePermission();
}

void AudioInputDialog::updateEchoEnableState() {
	AudioInputRegistrar *air = AudioInputRegistrar::qmNew->value(qcbSystem->currentText());

	AudioOutputDialog *outputWidget =
		static_cast< AudioOutputDialog * >(ConfigDialog::getConfigWidget(AudioOutputDialog::name));
	QString outputInterface;
	if (outputWidget) {
		outputInterface = outputWidget->getCurrentlySelectedOutputInterfaceName();
	} else {
		// Fallback for when the outputWIdget is not (yet) available -> use the value from the current settings
		outputInterface = s.qsAudioOutput;
	}

	qcbEcho->clear();
	qcbEcho->setToolTip(QObject::tr("If enabled this tries to cancel out echo from the audio stream."));
	qcbEcho->setCurrentIndex(0);

	bool hasUsableEchoOption = false;

	qcbEcho->insertItem(0, tr("Disabled"), "disabled");
	qcbEcho->setItemData(0, tr("Disable echo cancellation."), Qt::ToolTipRole);

	int i = 0;
	for (EchoCancelOptionID ecoid : air->echoOptions) {
		if (air->canEcho(ecoid, outputInterface)) {
			++i;
			hasUsableEchoOption                = true;
			const EchoCancelOption &echoOption = echoCancelOptions[static_cast< int >(ecoid)];
			qcbEcho->insertItem(i, echoOption.description, static_cast< int >(ecoid));
			qcbEcho->setItemData(i, echoOption.explanation, Qt::ToolTipRole);
			if (s.echoOption == ecoid) {
				qcbEcho->setCurrentIndex(i);
			}
		}
	}

	if (hasUsableEchoOption) {
		qcbEcho->setEnabled(true);
	} else {
		qcbEcho->setCurrentIndex(0);
		qcbEcho->setEnabled(false);
		qcbEcho->setToolTip(QObject::tr("Echo cancellation is not supported for the interface "
										"combination \"%1\" (in) and \"%2\" (out).")
								.arg(air->name)
								.arg(outputInterface));
	}
}

void AudioInputDialog::showSpeexNoiseSuppressionSlider(bool show) {
	qlSpeexNoiseSup->setVisible(show);
	qsSpeexNoiseSupStrength->setVisible(show);
	qlSpeexNoiseSupStrength->setVisible(show);
}

void AudioInputDialog::on_Tick_timeout() {
	AudioInputPtr ai = Global::get().ai;

	if (!ai.get() || !ai->sppPreprocess)
		return;

	abSpeech->iBelow = qsTransmitMin->value();
	abSpeech->iAbove = qsTransmitMax->value();

	if (qrbAmplitude->isChecked()) {
		abSpeech->iValue = iroundf((32767.f / 96.0f) * (96.0f + ai->dPeakCleanMic) + 0.5f);
	} else {
		abSpeech->iValue = iroundf(ai->fSpeechProb * 32767.0f + 0.5f);
	}
	abSpeech->update();
}


void AudioInputDialog::on_qcbIdleAction_currentIndexChanged(int v) {
	const Settings::IdleAction action = static_cast< Settings::IdleAction >(v);

	const bool enabled = (action != Settings::Nothing);

	qlIdle->setEnabled(enabled);
	qlIdle2->setEnabled(enabled);
	qsbIdle->setEnabled(enabled);
	qcbUndoIdleAction->setEnabled(enabled);
}

void AudioInputDialog::on_qrbNoiseSupSpeex_toggled(bool checked) {
	showSpeexNoiseSuppressionSlider(checked);
}

void AudioInputDialog::on_qrbNoiseSupBoth_toggled(bool checked) {
	showSpeexNoiseSuppressionSlider(checked);
}

void AudioOutputDialog::enablePulseAudioAttenuationOptionsFor(const QString &outputName) {
	if (outputName == QLatin1String("PulseAudio")) {
		qcbOnlyAttenuateSameOutput->show();
		qcbAttenuateLoopbacks->show();
	} else {
		qcbOnlyAttenuateSameOutput->hide();
		qcbAttenuateLoopbacks->hide();
	}
}

AudioOutputDialog::AudioOutputDialog(Settings &st) : ConfigWidget(st) {
	setupUi(this);

	qcbSystem->setAccessibleName(tr("Output system"));
	qcbDevice->setAccessibleName(tr("Output device"));
	qsJitter->setAccessibleName(tr("Default jitter buffer"));
	qsVolume->setAccessibleName(tr("Volume of incoming speech"));
	qsDelay->setAccessibleName(tr("Output delay"));
	qsOtherVolume->setAccessibleName(tr("Attenuation of other applications during speech"));
	qsMinDistance->setAccessibleName(tr("Minimum distance"));
	qsMaxDistance->setAccessibleName(tr("Maximum distance"));
	qsMaxDistVolume->setAccessibleName(tr("Minimum volume"));
	qsBloom->setAccessibleName(tr("Bloom"));
	qsPacketDelay->setAccessibleName(tr("Delay variance"));
	qsPacketLoss->setAccessibleName(tr("Packet loss"));
	qcbLoopback->setAccessibleName(tr("Loopback"));

	if (AudioOutputRegistrar::qmNew) {
		QList< QString > keys = AudioOutputRegistrar::qmNew->keys();
		foreach (QString key, keys) { qcbSystem->addItem(key); }
	}
	qcbSystem->setEnabled(qcbSystem->count() > 1);

	qcbLoopback->addItem(tr("None"), Settings::None);
	qcbLoopback->addItem(tr("Local"), Settings::Local);
	qcbLoopback->addItem(tr("Server"), Settings::Server);

	qcbDevice->view()->setTextElideMode(Qt::ElideRight);
}

QString AudioOutputDialog::title() const {
	return tr("Audio Output");
}

const QString &AudioOutputDialog::getName() const {
	return AudioOutputDialog::name;
}

QIcon AudioOutputDialog::icon() const {
	return QIcon(QLatin1String("skin:config_audio_output.png"));
}

QString AudioOutputDialog::getCurrentlySelectedOutputInterfaceName() const {
	if (qcbSystem) {
		return qcbSystem->currentText();
	}

	return QString();
}

void AudioOutputDialog::load(const Settings &r) {
	int i;
	QList< QString > keys;

	if (AudioOutputRegistrar::qmNew)
		keys = AudioOutputRegistrar::qmNew->keys();
	else
		keys.clear();
	i = keys.indexOf(AudioOutputRegistrar::current);
	if (i >= 0)
		loadComboBox(qcbSystem, i);

	loadCheckBox(qcbExclusive, r.bExclusiveOutput);
	loadSlider(qsDelay, r.iOutputDelay);
	loadSlider(qsVolume, iroundf(r.fVolume * 100.0f + 0.5f));
	loadSlider(qsOtherVolume, iroundf((1.0f - r.fOtherVolume) * 100.0f + 0.5f));
	loadCheckBox(qcbAttenuateOthersOnTalk, r.bAttenuateOthersOnTalk);
	loadCheckBox(qcbAttenuateOthers, r.bAttenuateOthers);
	loadCheckBox(qcbAttenuateUsersOnPrioritySpeak, r.bAttenuateUsersOnPrioritySpeak);
	loadCheckBox(qcbOnlyAttenuateSameOutput, r.bOnlyAttenuateSameOutput);
	loadCheckBox(qcbAttenuateLoopbacks, r.bAttenuateLoopbacks);

	const bool attenuationActive = r.bAttenuateOthers || r.bAttenuateOthersOnTalk;
	qcbOnlyAttenuateSameOutput->setEnabled(attenuationActive);
	qcbAttenuateLoopbacks->setEnabled(attenuationActive && r.bOnlyAttenuateSameOutput);

	enablePulseAudioAttenuationOptionsFor(AudioOutputRegistrar::current);

	loadSlider(qsJitter, r.iJitterBufferSize);
	loadComboBox(qcbLoopback, r.lmLoopMode);
	loadSlider(qsPacketDelay, static_cast< int >(r.dMaxPacketDelay));
	loadSlider(qsPacketLoss, iroundf(r.dPacketLoss * 100.0f + 0.5f));
	loadSlider(qsMinDistance, iroundf(r.fAudioMinDistance * 10.0f + 0.5f));
	loadSlider(qsMaxDistance, iroundf(r.fAudioMaxDistance * 10.0f + 0.5f));
	loadSlider(qsMaxDistVolume, iroundf(r.fAudioMaxDistVolume * 100.0f + 0.5f));
	loadSlider(qsBloom, iroundf(r.fAudioBloom * 100.0f + 0.5f));
	loadCheckBox(qcbHeadphones, r.bPositionalHeadphone);
	loadCheckBox(qcbPositional, r.bPositionalAudio);

	qsOtherVolume->setEnabled(r.bAttenuateOthersOnTalk || r.bAttenuateOthers);
	qlOtherVolume->setEnabled(r.bAttenuateOthersOnTalk || r.bAttenuateOthers);
	qcbAttenuateLoopbacks->setEnabled(r.bOnlyAttenuateSameOutput);
}

void AudioOutputDialog::save() const {
	s.iOutputDelay                   = qsDelay->value();
	s.fVolume                        = static_cast< float >(qsVolume->value()) / 100.0f;
	s.fOtherVolume                   = 1.0f - (static_cast< float >(qsOtherVolume->value()) / 100.0f);
	s.bAttenuateOthersOnTalk         = qcbAttenuateOthersOnTalk->isChecked();
	s.bAttenuateOthers               = qcbAttenuateOthers->isChecked();
	s.bOnlyAttenuateSameOutput       = qcbOnlyAttenuateSameOutput->isChecked();
	s.bAttenuateLoopbacks            = qcbAttenuateLoopbacks->isChecked();
	s.bAttenuateUsersOnPrioritySpeak = qcbAttenuateUsersOnPrioritySpeak->isChecked();
	s.iJitterBufferSize              = qsJitter->value();
	s.qsAudioOutput                  = qcbSystem->currentText();
	s.lmLoopMode                     = static_cast< Settings::LoopMode >(qcbLoopback->currentIndex());
	s.dMaxPacketDelay                = static_cast< float >(qsPacketDelay->value());
	s.dPacketLoss                    = static_cast< float >(qsPacketLoss->value()) / 100.0f;
	s.fAudioMinDistance              = static_cast< float >(qsMinDistance->value()) / 10.0f;
	s.fAudioMaxDistance              = static_cast< float >(qsMaxDistance->value()) / 10.0f;
	s.fAudioMaxDistVolume            = static_cast< float >(qsMaxDistVolume->value()) / 100.0f;
	s.fAudioBloom                    = static_cast< float >(qsBloom->value()) / 100.0f;
	s.bPositionalAudio               = qcbPositional->isChecked();
	s.bPositionalHeadphone           = qcbHeadphones->isChecked();
	s.bExclusiveOutput               = qcbExclusive->isChecked();


	if (AudioOutputRegistrar::qmNew) {
		AudioOutputRegistrar *aor = AudioOutputRegistrar::qmNew->value(qcbSystem->currentText());
		int idx                   = qcbDevice->currentIndex();
		if (idx > -1) {
			aor->setDeviceChoice(qcbDevice->itemData(idx), s);
		}
	}
}

void AudioOutputDialog::on_qcbSystem_currentIndexChanged(int) {
	qcbDevice->clear();

	QList< audioDevice > ql;

	if (AudioOutputRegistrar::qmNew) {
		AudioOutputRegistrar *aor = AudioOutputRegistrar::qmNew->value(qcbSystem->currentText());
		ql                        = aor->getDeviceChoices();

		int idx = 0;

		foreach (audioDevice d, ql) {
			qcbDevice->addItem(d.first, d.second);
			qcbDevice->setItemData(idx, d.first.toHtmlEscaped(), Qt::ToolTipRole);
			++idx;
		}
		bool canmute = aor->canMuteOthers();
		qsOtherVolume->setEnabled(canmute);
		qcbAttenuateOthersOnTalk->setEnabled(canmute);

		enablePulseAudioAttenuationOptionsFor(aor->name);

		qcbAttenuateOthers->setEnabled(canmute);
		qlOtherVolume->setEnabled(canmute);

		bool usesdelay = aor->usesOutputDelay();
		qsDelay->setEnabled(usesdelay);
		qlDelay->setEnabled(usesdelay);

		qcbExclusive->setEnabled(aor->canExclusive());
	}

	qcbDevice->setEnabled(ql.count() > 1);
}

void AudioOutputDialog::on_qsJitter_valueChanged(int v) {
	qlJitter->setText(tr("%1 ms").arg(v * 10));
}

void AudioOutputDialog::on_qsVolume_valueChanged(int v) {
	QPalette pal;

	if (v > 100) {
		pal.setColor(qlVolume->foregroundRole(), Qt::red);
	}
	qlVolume->setPalette(pal);

	qlVolume->setText(tr("%1 %").arg(v));
}

void AudioOutputDialog::on_qsOtherVolume_valueChanged(int v) {
	qlOtherVolume->setText(tr("%1 %").arg(v));
}

void AudioOutputDialog::on_qsPacketDelay_valueChanged(int v) {
	qlPacketDelay->setText(tr("%1 ms").arg(v));
}

void AudioOutputDialog::on_qsPacketLoss_valueChanged(int v) {
	qlPacketLoss->setText(tr("%1 %").arg(v));
}

void AudioOutputDialog::on_qsDelay_valueChanged(int v) {
	qlDelay->setText(tr("%1 ms").arg(v * 10));
}

void AudioOutputDialog::on_qcbLoopback_currentIndexChanged(int v) {
	bool ena = false;
	if (v == 1)
		ena = true;

	qsPacketDelay->setEnabled(ena);
	qlPacketDelay->setEnabled(ena);
	qsPacketLoss->setEnabled(ena);
	qlPacketLoss->setEnabled(ena);
}

void AudioOutputDialog::on_qsMinDistance_valueChanged(int v) {
	qlMinDistance->setText(tr("%1 m").arg(v / 10.0, 0, 'f', 1));
	if (qsMaxDistance->value() < v)
		qsMaxDistance->setValue(v);
}

void AudioOutputDialog::on_qsMaxDistance_valueChanged(int v) {
	qlMaxDistance->setText(tr("%1 m").arg(v / 10.0, 0, 'f', 1));
	if (qsMinDistance->value() > v)
		qsMinDistance->setValue(v);
}

void AudioOutputDialog::on_qsMaxDistVolume_valueChanged(int v) {
	qlMaxDistVolume->setText(tr("%1 %").arg(v));
}

void AudioOutputDialog::on_qsBloom_valueChanged(int v) {
	qlBloom->setText(tr("%1 %").arg(v + 100));
}

void AudioOutputDialog::on_qcbAttenuateOthersOnTalk_clicked(bool checked) {
	bool b = qcbAttenuateOthers->isChecked() || checked;
	qsOtherVolume->setEnabled(b);
	qlOtherVolume->setEnabled(b);

	qcbOnlyAttenuateSameOutput->setEnabled(b);
	qcbAttenuateLoopbacks->setEnabled(b && qcbOnlyAttenuateSameOutput->isChecked());
}

void AudioOutputDialog::on_qcbAttenuateOthers_clicked(bool checked) {
	bool b = qcbAttenuateOthersOnTalk->isChecked() || checked;
	qsOtherVolume->setEnabled(b);
	qlOtherVolume->setEnabled(b);

	qcbOnlyAttenuateSameOutput->setEnabled(b);
	qcbAttenuateLoopbacks->setEnabled(b && qcbOnlyAttenuateSameOutput->isChecked());
}

void AudioOutputDialog::on_qcbOnlyAttenuateSameOutput_clicked(bool checked) {
	qcbAttenuateLoopbacks->setEnabled(checked);
}