// SPDX-FileCopyrightText: 2017 Konstantinos Sideris <siderisk@auth.gr>
// SPDX-FileCopyrightText: 2021 Nheko Contributors
// SPDX-FileCopyrightText: 2022 Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <QAbstractListModel>
#include <QFontDatabase>
#include <QFrame>
#include <QProcessEnvironment>
#include <QSettings>
#include <QSharedPointer>
#include <QWidget>

#include "JdenticonProvider.h"
#include <optional>

class Toggle;
class QLabel;
class QFormLayout;
class QComboBox;
class QFontComboBox;
class QSpinBox;
class QHBoxLayout;
class QVBoxLayout;

constexpr int OptionMargin       = 6;
constexpr int LayoutTopMargin    = 50;
constexpr int LayoutBottomMargin = LayoutTopMargin;

class UserSettings : public QObject
{
    Q_OBJECT

    Q_PROPERTY(QString theme READ theme WRITE setTheme NOTIFY themeChanged)
    Q_PROPERTY(bool messageHoverHighlight READ messageHoverHighlight WRITE setMessageHoverHighlight
                 NOTIFY messageHoverHighlightChanged)
    Q_PROPERTY(bool enlargeEmojiOnlyMessages READ enlargeEmojiOnlyMessages WRITE
                 setEnlargeEmojiOnlyMessages NOTIFY enlargeEmojiOnlyMessagesChanged)
    Q_PROPERTY(bool tray READ tray WRITE setTray NOTIFY trayChanged)
    Q_PROPERTY(bool startInTray READ startInTray WRITE setStartInTray NOTIFY startInTrayChanged)
    Q_PROPERTY(bool groupView READ groupView WRITE setGroupView NOTIFY groupViewStateChanged)
    Q_PROPERTY(bool markdown READ markdown WRITE setMarkdown NOTIFY markdownChanged)
    Q_PROPERTY(bool animateImagesOnHover READ animateImagesOnHover WRITE setAnimateImagesOnHover
                 NOTIFY animateImagesOnHoverChanged)
    Q_PROPERTY(bool typingNotifications READ typingNotifications WRITE setTypingNotifications NOTIFY
                 typingNotificationsChanged)
    Q_PROPERTY(bool sortByImportance READ sortByImportance WRITE setSortByImportance NOTIFY
                 roomSortingChanged)
    Q_PROPERTY(bool buttonsInTimeline READ buttonsInTimeline WRITE setButtonsInTimeline NOTIFY
                 buttonInTimelineChanged)
    Q_PROPERTY(bool readReceipts READ readReceipts WRITE setReadReceipts NOTIFY readReceiptsChanged)
    Q_PROPERTY(bool desktopNotifications READ hasDesktopNotifications WRITE setDesktopNotifications
                 NOTIFY desktopNotificationsChanged)
    Q_PROPERTY(bool alertOnNotification READ hasAlertOnNotification WRITE setAlertOnNotification
                 NOTIFY alertOnNotificationChanged)
    Q_PROPERTY(
      bool avatarCircles READ avatarCircles WRITE setAvatarCircles NOTIFY avatarCirclesChanged)
    Q_PROPERTY(
      bool decryptSidebar READ decryptSidebar WRITE setDecryptSidebar NOTIFY decryptSidebarChanged)
    Q_PROPERTY(
      bool privacyScreen READ privacyScreen WRITE setPrivacyScreen NOTIFY privacyScreenChanged)
    Q_PROPERTY(int privacyScreenTimeout READ privacyScreenTimeout WRITE setPrivacyScreenTimeout
                 NOTIFY privacyScreenTimeoutChanged)
    Q_PROPERTY(int timelineMaxWidth READ timelineMaxWidth WRITE setTimelineMaxWidth NOTIFY
                 timelineMaxWidthChanged)
    Q_PROPERTY(
      int roomListWidth READ roomListWidth WRITE setRoomListWidth NOTIFY roomListWidthChanged)
    Q_PROPERTY(int communityListWidth READ communityListWidth WRITE setCommunityListWidth NOTIFY
                 communityListWidthChanged)
    Q_PROPERTY(bool mobileMode READ mobileMode WRITE setMobileMode NOTIFY mobileModeChanged)
    Q_PROPERTY(double fontSize READ fontSize WRITE setFontSize NOTIFY fontSizeChanged)
    Q_PROPERTY(QString font READ font WRITE setFontFamily NOTIFY fontChanged)
    Q_PROPERTY(QString emojiFont READ emojiFont WRITE setEmojiFontFamily NOTIFY emojiFontChanged)
    Q_PROPERTY(Presence presence READ presence WRITE setPresence NOTIFY presenceChanged)
    Q_PROPERTY(QString ringtone READ ringtone WRITE setRingtone NOTIFY ringtoneChanged)
    Q_PROPERTY(QString microphone READ microphone WRITE setMicrophone NOTIFY microphoneChanged)
    Q_PROPERTY(QString camera READ camera WRITE setCamera NOTIFY cameraChanged)
    Q_PROPERTY(QString cameraResolution READ cameraResolution WRITE setCameraResolution NOTIFY
                 cameraResolutionChanged)
    Q_PROPERTY(QString cameraFrameRate READ cameraFrameRate WRITE setCameraFrameRate NOTIFY
                 cameraFrameRateChanged)
    Q_PROPERTY(int screenShareFrameRate READ screenShareFrameRate WRITE setScreenShareFrameRate
                 NOTIFY screenShareFrameRateChanged)
    Q_PROPERTY(
      bool screenSharePiP READ screenSharePiP WRITE setScreenSharePiP NOTIFY screenSharePiPChanged)
    Q_PROPERTY(bool screenShareRemoteVideo READ screenShareRemoteVideo WRITE
                 setScreenShareRemoteVideo NOTIFY screenShareRemoteVideoChanged)
    Q_PROPERTY(bool screenShareHideCursor READ screenShareHideCursor WRITE setScreenShareHideCursor
                 NOTIFY screenShareHideCursorChanged)
    Q_PROPERTY(
      bool useStunServer READ useStunServer WRITE setUseStunServer NOTIFY useStunServerChanged)
    Q_PROPERTY(bool onlyShareKeysWithVerifiedUsers READ onlyShareKeysWithVerifiedUsers WRITE
                 setOnlyShareKeysWithVerifiedUsers NOTIFY onlyShareKeysWithVerifiedUsersChanged)
    Q_PROPERTY(bool shareKeysWithTrustedUsers READ shareKeysWithTrustedUsers WRITE
                 setShareKeysWithTrustedUsers NOTIFY shareKeysWithTrustedUsersChanged)
    Q_PROPERTY(bool useOnlineKeyBackup READ useOnlineKeyBackup WRITE setUseOnlineKeyBackup NOTIFY
                 useOnlineKeyBackupChanged)
    Q_PROPERTY(QString profile READ profile WRITE setProfile NOTIFY profileChanged)
    Q_PROPERTY(QString userId READ userId WRITE setUserId NOTIFY userIdChanged)
    Q_PROPERTY(QString accessToken READ accessToken WRITE setAccessToken NOTIFY accessTokenChanged)
    Q_PROPERTY(QString deviceId READ deviceId WRITE setDeviceId NOTIFY deviceIdChanged)
    Q_PROPERTY(QString homeserver READ homeserver WRITE setHomeserver NOTIFY homeserverChanged)
    Q_PROPERTY(bool disableCertificateValidation READ disableCertificateValidation WRITE
                 setDisableCertificateValidation NOTIFY disableCertificateValidationChanged)
    Q_PROPERTY(bool useIdenticon READ useIdenticon WRITE setUseIdenticon NOTIFY useIdenticonChanged)

    Q_PROPERTY(QStringList hiddenPins READ hiddenPins WRITE setHiddenPins NOTIFY hiddenPinsChanged)
    Q_PROPERTY(QStringList recentReactions READ recentReactions WRITE setRecentReactions NOTIFY
                 recentReactionsChanged)

    UserSettings();

public:
    static QSharedPointer<UserSettings> instance();
    static void initialize(std::optional<QString> profile);

    QSettings *qsettings() { return &settings; }

    enum class Presence
    {
        AutomaticPresence,
        Online,
        Unavailable,
        Offline,
    };
    Q_ENUM(Presence)

    void save();
    void load(std::optional<QString> profile);
    void applyTheme();
    void setTheme(QString theme);
    void setMessageHoverHighlight(bool state);
    void setEnlargeEmojiOnlyMessages(bool state);
    void setTray(bool state);
    void setStartInTray(bool state);
    void setMobileMode(bool mode);
    void setFontSize(double size);
    void setFontFamily(QString family);
    void setEmojiFontFamily(QString family);
    void setGroupView(bool state);
    void setMarkdown(bool state);
    void setAnimateImagesOnHover(bool state);
    void setReadReceipts(bool state);
    void setTypingNotifications(bool state);
    void setSortByImportance(bool state);
    void setButtonsInTimeline(bool state);
    void setTimelineMaxWidth(int state);
    void setCommunityListWidth(int state);
    void setRoomListWidth(int state);
    void setDesktopNotifications(bool state);
    void setAlertOnNotification(bool state);
    void setAvatarCircles(bool state);
    void setDecryptSidebar(bool state);
    void setPrivacyScreen(bool state);
    void setPrivacyScreenTimeout(int state);
    void setPresence(Presence state);
    void setRingtone(QString ringtone);
    void setMicrophone(QString microphone);
    void setCamera(QString camera);
    void setCameraResolution(QString resolution);
    void setCameraFrameRate(QString frameRate);
    void setScreenShareFrameRate(int frameRate);
    void setScreenSharePiP(bool state);
    void setScreenShareRemoteVideo(bool state);
    void setScreenShareHideCursor(bool state);
    void setUseStunServer(bool state);
    void setOnlyShareKeysWithVerifiedUsers(bool state);
    void setShareKeysWithTrustedUsers(bool state);
    void setUseOnlineKeyBackup(bool state);
    void setProfile(QString profile);
    void setUserId(QString userId);
    void setAccessToken(QString accessToken);
    void setDeviceId(QString deviceId);
    void setHomeserver(QString homeserver);
    void setDisableCertificateValidation(bool disabled);
    void setHiddenTags(QStringList hiddenTags);
    void setHiddenPins(QStringList hiddenTags);
    void setRecentReactions(QStringList recent);
    void setUseIdenticon(bool state);
    void setCollapsedSpaces(QList<QStringList> spaces);

    QString theme() const { return !theme_.isEmpty() ? theme_ : defaultTheme_; }
    bool messageHoverHighlight() const { return messageHoverHighlight_; }
    bool enlargeEmojiOnlyMessages() const { return enlargeEmojiOnlyMessages_; }
    bool tray() const { return tray_; }
    bool startInTray() const { return startInTray_; }
    bool groupView() const { return groupView_; }
    bool avatarCircles() const { return avatarCircles_; }
    bool decryptSidebar() const { return decryptSidebar_; }
    bool privacyScreen() const { return privacyScreen_; }
    int privacyScreenTimeout() const { return privacyScreenTimeout_; }
    bool markdown() const { return markdown_; }
    bool animateImagesOnHover() const { return animateImagesOnHover_; }
    bool typingNotifications() const { return typingNotifications_; }
    bool sortByImportance() const { return sortByImportance_; }
    bool buttonsInTimeline() const { return buttonsInTimeline_; }
    bool mobileMode() const { return mobileMode_; }
    bool readReceipts() const { return readReceipts_; }
    bool hasDesktopNotifications() const { return hasDesktopNotifications_; }
    bool hasAlertOnNotification() const { return hasAlertOnNotification_; }
    bool hasNotifications() const { return hasDesktopNotifications() || hasAlertOnNotification(); }
    int timelineMaxWidth() const { return timelineMaxWidth_; }
    int communityListWidth() const { return communityListWidth_; }
    int roomListWidth() const { return roomListWidth_; }
    double fontSize() const { return baseFontSize_; }
    QString font() const { return font_; }
    QString emojiFont() const
    {
        if (emojiFont_ == QLatin1String("Default")) {
            return tr("Default");
        }

        return emojiFont_;
    }
    Presence presence() const { return presence_; }
    QString ringtone() const { return ringtone_; }
    QString microphone() const { return microphone_; }
    QString camera() const { return camera_; }
    QString cameraResolution() const { return cameraResolution_; }
    QString cameraFrameRate() const { return cameraFrameRate_; }
    int screenShareFrameRate() const { return screenShareFrameRate_; }
    bool screenSharePiP() const { return screenSharePiP_; }
    bool screenShareRemoteVideo() const { return screenShareRemoteVideo_; }
    bool screenShareHideCursor() const { return screenShareHideCursor_; }
    bool useStunServer() const { return useStunServer_; }
    bool shareKeysWithTrustedUsers() const { return shareKeysWithTrustedUsers_; }
    bool onlyShareKeysWithVerifiedUsers() const { return onlyShareKeysWithVerifiedUsers_; }
    bool useOnlineKeyBackup() const { return useOnlineKeyBackup_; }
    QString profile() const { return profile_; }
    QString userId() const { return userId_; }
    QString accessToken() const { return accessToken_; }
    QString deviceId() const { return deviceId_; }
    QString homeserver() const { return homeserver_; }
    bool disableCertificateValidation() const { return disableCertificateValidation_; }
    QStringList hiddenTags() const { return hiddenTags_; }
    QStringList hiddenPins() const { return hiddenPins_; }
    QStringList recentReactions() const { return recentReactions_; }
    bool useIdenticon() const { return useIdenticon_ && JdenticonProvider::isAvailable(); }
    QList<QStringList> collapsedSpaces() const { return collapsedSpaces_; }

signals:
    void groupViewStateChanged(bool state);
    void roomSortingChanged(bool state);
    void themeChanged(QString state);
    void messageHoverHighlightChanged(bool state);
    void enlargeEmojiOnlyMessagesChanged(bool state);
    void trayChanged(bool state);
    void startInTrayChanged(bool state);
    void markdownChanged(bool state);
    void animateImagesOnHoverChanged(bool state);
    void typingNotificationsChanged(bool state);
    void buttonInTimelineChanged(bool state);
    void readReceiptsChanged(bool state);
    void desktopNotificationsChanged(bool state);
    void alertOnNotificationChanged(bool state);
    void avatarCirclesChanged(bool state);
    void decryptSidebarChanged(bool state);
    void privacyScreenChanged(bool state);
    void privacyScreenTimeoutChanged(int state);
    void timelineMaxWidthChanged(int state);
    void roomListWidthChanged(int state);
    void communityListWidthChanged(int state);
    void mobileModeChanged(bool mode);
    void fontSizeChanged(double state);
    void fontChanged(QString state);
    void emojiFontChanged(QString state);
    void presenceChanged(Presence state);
    void ringtoneChanged(QString ringtone);
    void microphoneChanged(QString microphone);
    void cameraChanged(QString camera);
    void cameraResolutionChanged(QString resolution);
    void cameraFrameRateChanged(QString frameRate);
    void screenShareFrameRateChanged(int frameRate);
    void screenSharePiPChanged(bool state);
    void screenShareRemoteVideoChanged(bool state);
    void screenShareHideCursorChanged(bool state);
    void useStunServerChanged(bool state);
    void onlyShareKeysWithVerifiedUsersChanged(bool state);
    void shareKeysWithTrustedUsersChanged(bool state);
    void useOnlineKeyBackupChanged(bool state);
    void profileChanged(QString profile);
    void userIdChanged(QString userId);
    void accessTokenChanged(QString accessToken);
    void deviceIdChanged(QString deviceId);
    void homeserverChanged(QString homeserver);
    void disableCertificateValidationChanged(bool disabled);
    void useIdenticonChanged(bool state);
    void hiddenPinsChanged();
    void recentReactionsChanged();

private:
    // Default to system theme if QT_QPA_PLATFORMTHEME var is set.
    QString defaultTheme_ = QProcessEnvironment::systemEnvironment()
                                .value(QStringLiteral("QT_QPA_PLATFORMTHEME"), QLatin1String(""))
                                .isEmpty()
                              ? "light"
                              : "system";
    QString theme_;
    bool messageHoverHighlight_;
    bool enlargeEmojiOnlyMessages_;
    bool tray_;
    bool startInTray_;
    bool groupView_;
    bool markdown_;
    bool animateImagesOnHover_;
    bool typingNotifications_;
    bool sortByImportance_;
    bool buttonsInTimeline_;
    bool readReceipts_;
    bool hasDesktopNotifications_;
    bool hasAlertOnNotification_;
    bool avatarCircles_;
    bool decryptSidebar_;
    bool privacyScreen_;
    int privacyScreenTimeout_;
    bool shareKeysWithTrustedUsers_;
    bool onlyShareKeysWithVerifiedUsers_;
    bool useOnlineKeyBackup_;
    bool mobileMode_;
    int timelineMaxWidth_;
    int roomListWidth_;
    int communityListWidth_;
    double baseFontSize_;
    QString font_;
    QString emojiFont_;
    Presence presence_;
    QString ringtone_;
    QString microphone_;
    QString camera_;
    QString cameraResolution_;
    QString cameraFrameRate_;
    int screenShareFrameRate_;
    bool screenSharePiP_;
    bool screenShareRemoteVideo_;
    bool screenShareHideCursor_;
    bool useStunServer_;
    bool disableCertificateValidation_ = false;
    QString profile_;
    QString userId_;
    QString accessToken_;
    QString deviceId_;
    QString homeserver_;
    QStringList hiddenTags_;
    QStringList hiddenPins_;
    QStringList recentReactions_;
    QList<QStringList> collapsedSpaces_;
    bool useIdenticon_;

    QSettings settings;

    static QSharedPointer<UserSettings> instance_;
};

class UserSettingsModel : public QAbstractListModel
{
    Q_OBJECT

    enum Indices
    {
        GeneralSection,
        Theme,
        MobileMode,
#ifndef Q_OS_MAC
        ScaleFactor,
#endif
        Font,
        FontSize,
        EmojiFont,
        AvatarCircles,
        UseIdenticon,
        PrivacyScreen,
        PrivacyScreenTimeout,

        TimelineSection,
        TimelineMaxWidth,
        MessageHoverHighlight,
        EnlargeEmojiOnlyMessages,
        AnimateImagesOnHover,
        TypingNotifications,
        ReadReceipts,
        ButtonsInTimeline,
        Markdown,

        SidebarSection,
        GroupView,
        SortByImportance,
        DecryptSidebar,

        TraySection,
        Tray,
        StartInTray,

        NotificationsSection,
        DesktopNotifications,
        AlertOnNotification,

        VoipSection,
        UseStunServer,
        Microphone,
        Camera,
        CameraResolution,
        CameraFrameRate,
        Ringtone,

        EncryptionSection,
        OnlyShareKeysWithVerifiedUsers,
        ShareKeysWithTrustedUsers,
        SessionKeys,
        UseOnlineKeyBackup,
        OnlineBackupKey,
        SelfSigningKey,
        UserSigningKey,
        MasterKey,
        CrossSigningSecrets,
        DeviceId,
        DeviceFingerprint,

        LoginInfoSection,
        UserId,
        Homeserver,
        Profile,
        Version,
        Platform,
        COUNT,
        // hidden for now
        AccessToken,
#ifdef Q_OS_MAC
        ScaleFactor,
#endif
    };

public:
    enum Types
    {
        Toggle,
        ReadOnlyText,
        Options,
        Integer,
        Double,
        SectionTitle,
        SectionBar,
        KeyStatus,
        SessionKeyImportExport,
        XSignKeysRequestDownload,
    };
    Q_ENUM(Types);

    enum Roles
    {
        Name,
        Description,
        Value,
        Type,
        ValueLowerBound,
        ValueUpperBound,
        ValueStep,
        Values,
        Good,
        Enabled,
    };

    UserSettingsModel(QObject *parent = nullptr);
    QHash<int, QByteArray> roleNames() const override;
    int rowCount(const QModelIndex &parent = QModelIndex()) const override
    {
        (void)parent;
        return (int)COUNT;
    }
    QVariant data(const QModelIndex &index, int role) const override;
    bool setData(const QModelIndex &index, const QVariant &value, int role) override;

    Q_INVOKABLE void importSessionKeys();
    Q_INVOKABLE void exportSessionKeys();
    Q_INVOKABLE void requestCrossSigningSecrets();
    Q_INVOKABLE void downloadCrossSigningSecrets();
};