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

#pragma once

#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)

    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 setUseIdenticon(bool state);

    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_ == "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_; }
    bool useIdenticon() const { return useIdenticon_ && JdenticonProvider::isAvailable(); }

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);

private:
    // Default to system theme if QT_QPA_PLATFORMTHEME var is set.
    QString defaultTheme_ =
      QProcessEnvironment::systemEnvironment().value("QT_QPA_PLATFORMTHEME", "").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_;
    bool useIdenticon_;

    QSettings settings;

    static QSharedPointer<UserSettings> instance_;
};

class HorizontalLine : public QFrame
{
    Q_OBJECT

public:
    HorizontalLine(QWidget *parent = nullptr);
};

class UserSettingsPage : public QWidget
{
    Q_OBJECT

public:
    UserSettingsPage(QSharedPointer<UserSettings> settings, QWidget *parent = nullptr);

protected:
    void showEvent(QShowEvent *event) override;
    void paintEvent(QPaintEvent *event) override;

signals:
    void moveBack();
    void trayOptionChanged(bool value);
    void themeChanged();
    void decryptSidebarChanged();

public slots:
    void updateSecretStatus();

private slots:
    void importSessionKeys();
    void exportSessionKeys();

private:
    // Layouts
    QVBoxLayout *topLayout_;
    QHBoxLayout *topBarLayout_;
    QFormLayout *formLayout_;

    // Shared settings object.
    QSharedPointer<UserSettings> settings_;

    Toggle *trayToggle_;
    Toggle *startInTrayToggle_;
    Toggle *groupViewToggle_;
    Toggle *timelineButtonsToggle_;
    Toggle *typingNotifications_;
    Toggle *messageHoverHighlight_;
    Toggle *enlargeEmojiOnlyMessages_;
    Toggle *sortByImportance_;
    Toggle *readReceipts_;
    Toggle *markdown_;
    Toggle *animateImagesOnHover_;
    Toggle *desktopNotifications_;
    Toggle *alertOnNotification_;
    Toggle *avatarCircles_;
    Toggle *useIdenticon_;
    Toggle *useStunServer_;
    Toggle *decryptSidebar_;
    Toggle *privacyScreen_;
    QSpinBox *privacyScreenTimeout_;
    Toggle *shareKeysWithTrustedUsers_;
    Toggle *onlyShareKeysWithVerifiedUsers_;
    Toggle *useOnlineKeyBackup_;
    Toggle *mobileMode_;
    QLabel *deviceFingerprintValue_;
    QLabel *deviceIdValue_;
    QLabel *backupSecretCached;
    QLabel *masterSecretCached;
    QLabel *selfSigningSecretCached;
    QLabel *userSigningSecretCached;

    QComboBox *themeCombo_;
    QComboBox *scaleFactorCombo_;
    QComboBox *fontSizeCombo_;
    QFontComboBox *fontSelectionCombo_;
    QComboBox *emojiFontSelectionCombo_;
    QComboBox *ringtoneCombo_;
    QComboBox *microphoneCombo_;
    QComboBox *cameraCombo_;
    QComboBox *cameraResolutionCombo_;
    QComboBox *cameraFrameRateCombo_;

    QSpinBox *timelineMaxWidthSpin_;

    int sideMargin_ = 0;
};