// Copyright 2005-2016 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>.

#ifndef MUMBLE_MUMBLE_SETTINGS_H_
#define MUMBLE_MUMBLE_SETTINGS_H_

#include <QtCore/QVariant>
#include <QtCore/QList>
#include <QtCore/QPair>
#include <QtCore/QRectF>
#include <QtCore/QSettings>
#include <QtCore/QStringList>
#include <QtGui/QColor>
#include <QtGui/QFont>
#include <QtNetwork/QSslCertificate>
#include <QtNetwork/QSslKey>

// Global helper classes to spread variables around across threads
// especially helpful to initialize things like the stored
// preference for audio transmission, since the GUI elements
// will be created long before the AudioInput object, and the
// latter lives in a separate thread and so cannot touch the
// GUI.

struct Shortcut {
	int iIndex;
	QList<QVariant> qlButtons;
	QVariant qvData;
	bool bSuppress;
	bool operator <(const Shortcut &) const;
	bool isServerSpecific() const;
	bool operator ==(const Shortcut &) const;
};

struct ShortcutTarget {
	bool bUsers;
	QStringList qlUsers;
	QList<unsigned int> qlSessions;
	int iChannel;
	QString qsGroup;
	bool bLinks;
	bool bChildren;
	bool bForceCenter;
	ShortcutTarget();
	bool isServerSpecific() const;
	bool operator <(const ShortcutTarget &) const;
	bool operator ==(const ShortcutTarget &) const;
};

quint32 qHash(const ShortcutTarget &);
quint32 qHash(const QList<ShortcutTarget> &);

QDataStream &operator<<(QDataStream &, const ShortcutTarget &);
QDataStream &operator>>(QDataStream &, ShortcutTarget &);
Q_DECLARE_METATYPE(ShortcutTarget)

struct OverlaySettings {
	enum OverlayPresets { AvatarAndName, LargeSquareAvatar };

	enum OverlayShow { Talking, Active, HomeChannel, LinkedChannels };

	enum OverlaySort { Alphabetical, LastStateChange };

	bool bEnable;

	QString qsStyle;

	OverlayShow osShow;
	bool bAlwaysSelf;
	int uiActiveTime; // Time in seconds for a user to stay active after talking
	OverlaySort osSort;

	float fX;
	float fY;

	qreal fZoom;
	unsigned int uiColumns;

	QColor qcUserName[4];
	QFont qfUserName;

	QColor qcChannel;
	QFont qfChannel;

	QColor qcFps;
	QFont qfFps;

	qreal fBoxPad;
	qreal fBoxPenWidth;
	QColor qcBoxPen;
	QColor qcBoxFill;

	bool bUserName;
	bool bChannel;
	bool bMutedDeafened;
	bool bAvatar;
	bool bBox;
	bool bFps;
	bool bTime;

	qreal fUserName;
	qreal fChannel;
	qreal fMutedDeafened;
	qreal fAvatar;
	qreal fUser[4];
	qreal fFps;

	QRectF qrfUserName;
	QRectF qrfChannel;
	QRectF qrfMutedDeafened;
	QRectF qrfAvatar;
	QRectF qrfFps;
	QRectF qrfTime;

	Qt::Alignment qaUserName;
	Qt::Alignment qaChannel;
	Qt::Alignment qaMutedDeafened;
	Qt::Alignment qaAvatar;

	bool bUseWhitelist;
	QStringList qslBlacklist;
	QStringList qslWhitelist;

	OverlaySettings();
	void setPreset(const OverlayPresets preset = AvatarAndName);

	void load();
	void load(QSettings*);
	void save();
	void save(QSettings*);
};

struct Settings {
	enum AudioTransmit { Continuous, VAD, PushToTalk };
	enum VADSource { Amplitude, SignalToNoise };
	enum LoopMode { None, Local, Server };
	enum ChannelExpand { NoChannels, ChannelsWithUsers, AllChannels };
	enum ChannelDrag { Ask, DoNothing, Move };
	enum ServerShow { ShowPopulated, ShowReachable, ShowAll };
	enum TalkState { Passive, Talking, Whispering, Shouting };
	enum IdleAction { Nothing, Deafen, Mute };
	typedef QPair<QList<QSslCertificate>, QSslKey> KeyPair;

	AudioTransmit atTransmit;
	quint64 uiDoublePush;
	quint64 pttHold;

	bool bExpert;

	bool bTxAudioCue;
	static const QString cqsDefaultPushClickOn;
	static const QString cqsDefaultPushClickOff;
	QString qsTxAudioCueOn;
	QString qsTxAudioCueOff;

	bool bTransmitPosition;
	bool bMute, bDeaf;
	bool bTTS;
	bool bUserTop;
	bool bWhisperFriends;
	bool bTTSMessageReadBack;
	int iTTSVolume, iTTSThreshold;
	/// The Text-to-Speech language to use. This setting overrides
	/// the default language for the Text-to-Speech engine, which
	/// is usually inferred from the current locale.
	///
	/// The language is expected to be in BCP47 form.
	///
	/// The setting is currently only supported by the speech-dispatcher
	///backend.
	QString qsTTSLanguage;
	int iQuality, iMinLoudness, iVoiceHold, iJitterBufferSize;
	int iNoiseSuppress;

	// Idle auto actions
	unsigned int iIdleTime;
	IdleAction iaeIdleAction;

	VADSource vsVAD;
	float fVADmin, fVADmax;
	int iFramesPerPacket;
	QString qsAudioInput, qsAudioOutput;
	float fVolume;
	float fOtherVolume;
	bool bAttenuateOthersOnTalk;
	bool bAttenuateOthers;
	bool bAttenuateUsersOnPrioritySpeak;
	bool bOnlyAttenuateSameOutput;
	bool bAttenuateLoopbacks;
	int iOutputDelay;

	QString qsALSAInput, qsALSAOutput;
	QString qsPulseAudioInput, qsPulseAudioOutput;
	QString qsOSSInput, qsOSSOutput;
	int iPortAudioInput, iPortAudioOutput;

	bool bASIOEnable;
	QString qsASIOclass;
	QList<QVariant> qlASIOmic;
	QList<QVariant> qlASIOspeaker;

	QString qsCoreAudioInput, qsCoreAudioOutput;
	QString qsWASAPIInput, qsWASAPIOutput;
	QByteArray qbaDXInput, qbaDXOutput;

	bool bExclusiveInput, bExclusiveOutput;
	bool bEcho;
	bool bEchoMulti;
	bool bPositionalAudio;
	bool bPositionalHeadphone;
	float fAudioMinDistance, fAudioMaxDistance, fAudioMaxDistVolume, fAudioBloom;
	QMap<QString, bool> qmPositionalAudioPlugins;

	OverlaySettings os;

	int iOverlayWinHelperRestartCooldownMsec;
	bool bOverlayWinHelperX86Enable;
	bool bOverlayWinHelperX64Enable;

	int iLCDUserViewMinColWidth;
	int iLCDUserViewSplitterWidth;
	QMap<QString, bool> qmLCDDevices;

	bool bShortcutEnable;
	bool bSuppressMacEventTapWarning;
	bool bEnableEvdev;
	bool bEnableXInput2;
	bool bEnableGKey;
	bool bEnableXboxInput;
	QList<Shortcut> qlShortcuts;

	enum MessageLog { LogNone = 0x00, LogConsole = 0x01, LogTTS = 0x02, LogBalloon = 0x04, LogSoundfile = 0x08};
	int iMaxLogBlocks;
	QMap<int, QString> qmMessageSounds;
	QMap<int, quint32> qmMessages;

	QString qsLanguage;

	/// Name of the theme to use. @see Themes
	QString themeName;
	/// Name of the style to use from theme. @see Themes
	QString themeStyleName;
	
	QByteArray qbaMainWindowGeometry, qbaMainWindowState, qbaMinimalViewGeometry, qbaMinimalViewState, qbaSplitterState, qbaHeaderState;
	QByteArray qbaConfigGeometry;
	enum WindowLayout { LayoutClassic, LayoutStacked, LayoutHybrid, LayoutCustom };
	WindowLayout wlWindowLayout;
	ChannelExpand ceExpand;
	ChannelDrag ceChannelDrag;
	bool bMinimalView;
	bool bHideFrame;
	enum AlwaysOnTopBehaviour { OnTopNever, OnTopAlways, OnTopInMinimal, OnTopInNormal };
	AlwaysOnTopBehaviour aotbAlwaysOnTop;
	bool bAskOnQuit;
	bool bHideInTray;
	bool bStateInTray;
	bool bUsage;
	bool bShowUserCount;
	bool bChatBarUseSelection;
	bool bFilterHidesEmptyChannels;
	bool bFilterActive;
	QByteArray qbaConnectDialogHeader, qbaConnectDialogGeometry;
	bool bShowContextMenuInMenuBar;

	QString qsUsername;
	QString qsLastServer;
	ServerShow ssFilter;

	QString qsImagePath;

	bool bUpdateCheck;
	bool bPluginCheck;

	// PTT Button window
	bool bShowPTTButtonWindow;
	QByteArray qbaPTTButtonWindowGeometry;

	// Network settings
	enum ProxyType { NoProxy, HttpProxy, Socks5Proxy };
	bool bTCPCompat;
	bool bReconnect;
	bool bAutoConnect;
	bool bQoS;
	ProxyType ptProxyType;
	QString qsProxyHost, qsProxyUsername, qsProxyPassword;
	unsigned short usProxyPort;

	/// The service prefix that the WebFetch class will use
	/// when it constructs its fully-qualified URL. If this
	/// is empty, no prefix is used.
	///
	/// When the WebFetch class receives a HTTP response which
	/// includes the header "Use-Service-Prefix", this setting
	/// is updated to reflect the received service prefix.
	///
	/// For more information, see the documentation for WebFetch::fetch().
	QString qsServicePrefix;

	// Network settings - SSL
	QString qsSslCiphers;

	static const int ciDefaultMaxImageSize = 50 * 1024; // Restrict to 50KiB as a default
	int iMaxImageSize;
	int iMaxImageWidth;
	int iMaxImageHeight;
	KeyPair kpCertificate;
	bool bSuppressIdentity;

	bool bShowTransmitModeComboBox;

	// Accessibility
	bool bHighContrast;

	// Recording
	QString qsRecordingPath;
	QString qsRecordingFile;
	enum RecordingMode { RecordingMixdown, RecordingMultichannel };
	RecordingMode rmRecordingMode;
	int iRecordingFormat;

	// Special configuration options not exposed to UI
	
	/// Codec kill-switch
	bool bDisableCELT;
	
	/// Disables the "Public Internet" section in the connect dialog if set.
	bool disablePublicList;
	
	/// Removes the add and edit options in the connect dialog if set.
	bool disableConnectDialogEditing;
	
	// Config updates
	unsigned int uiUpdateCounter;

	// Nonsaved
	LoopMode lmLoopMode;
	float dPacketLoss;
	float dMaxPacketDelay;
	/// If true settings in this structure require a client restart to apply fully
	bool requireRestartToApply;

	bool doEcho() const;
	bool doPositionalAudio() const;

	Settings();
	void load();
	void load(QSettings*);
	void save();
};

#endif
