// Copyright (C) 2021 The Qt Company Ltd.
// Copyright (C) 2019 Luxoft Sweden AB
// Copyright (C) 2018 Pelagicore AG
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#ifndef NOTIFICATIONMANAGER_H
#define NOTIFICATIONMANAGER_H

#include <QtCore/QObject>
#include <QtCore/QAbstractListModel>
#include <QtAppManCommon/global.h>

QT_FORWARD_DECLARE_CLASS(QQmlEngine)
QT_FORWARD_DECLARE_CLASS(QJSEngine)

QT_BEGIN_NAMESPACE_AM

struct NotificationData;
class NotificationManagerPrivate;

// A place to collect signals used internally by appman without polluting
// NotificationManager's public QML API.
class NotificationManagerInternalSignals : public QObject
{
    Q_OBJECT
Q_SIGNALS:
    // these correspond to the org.freedesktop.Notifications signals
    void notificationClosed(uint id, uint reason);
    void actionInvoked(uint id, const QString &action_key);
};

class NotificationManager : public QAbstractListModel
{
    Q_OBJECT
    Q_CLASSINFO("D-Bus Interface", "org.freedesktop.Notifications")
    Q_PROPERTY(int count READ count NOTIFY countChanged FINAL)

public:
    ~NotificationManager() override;
    static NotificationManager *createInstance();
    static NotificationManager *instance();

    // the item model part
    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
    QVariant data(const QModelIndex &index, int role) const override;
    QHash<int, QByteArray> roleNames() const override;

    int count() const;
    Q_INVOKABLE QVariantMap get(int index) const;
    Q_INVOKABLE QVariantMap notification(uint id) const;
    Q_INVOKABLE int indexOfNotification(uint id) const;

    Q_INVOKABLE void acknowledgeNotification(uint id);
    Q_INVOKABLE void triggerNotificationAction(uint id, const QString &actionId);
    Q_INVOKABLE void dismissNotification(uint id);

    NotificationManagerInternalSignals internalSignals;

    uint showNotification(const QString &app_name, uint replaces_id, const QString &app_icon,
                          const QString &summary, const QString &body, const QStringList &actions,
                          const QVariantMap &hints, int timeout);
    void closeNotification(uint id);

Q_SIGNALS:
    void countChanged();
    void notificationAdded(uint id);
    void notificationAboutToBeRemoved(uint id);
    void notificationChanged(uint id, const QStringList &rolesChanged);

private:
    uint notifyHelper(NotificationData *n, bool replaces, int timeout);

private:
    NotificationManager(QObject *parent = nullptr);
    NotificationManager(const NotificationManager &);
    NotificationManager &operator=(const NotificationManager &);
    static NotificationManager *s_instance;

    NotificationManagerPrivate *d;
    friend class NotificationManagerPrivate;
};

QT_END_NAMESPACE_AM

#endif // NOTIFICATIONMANAGER_H