/*
    SPDX-FileCopyrightText: 2011 Ilia Kats <ilia-kats@gmx.net>
    SPDX-FileCopyrightText: 2011-2013 Lamarque V. Souza <lamarque@kde.org>
    SPDX-FileCopyrightText: 2013 Jan Grulich <jgrulich@redhat.com>

    SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/

#ifndef NETWORKMANAGERQT_VPNCONNECTION_H
#define NETWORKMANAGERQT_VPNCONNECTION_H

#include <networkmanagerqt/networkmanagerqt_export.h>

#include "activeconnection.h"

#include <QObject>

namespace NetworkManager
{
class Device;
class VpnConnectionPrivate;

/**
 * An active VPN connection
 */
class NETWORKMANAGERQT_EXPORT VpnConnection : public ActiveConnection
{
    Q_OBJECT

public:
    typedef QSharedPointer<VpnConnection> Ptr;
    typedef QList<Ptr> List;
    /**
     * Enum describing the possible VPN connection states
     */
    enum State {
        Unknown = 0, /**< The state of the VPN connection is unknown. */
        Prepare, /**< The VPN connection is preparing to connect. */
        NeedAuth, /**< The VPN connection needs authorization credentials. */
        Connecting, /**< The VPN connection is being established. */
        GettingIpConfig, /**< The VPN connection is getting an IP address. */
        Activated, /**< The VPN connection is active. */
        Failed, /**< The VPN connection failed. */
        Disconnected, /**< The VPN connection is disconnected. */
    };
    Q_ENUM(State)

    enum StateChangeReason {
        UnknownReason = 0, /**< The reason for the VPN connection state change is unknown.*/
        NoneReason, /**< No reason was given for the VPN connection state change. */
        UserDisconnectedReason, /**< The VPN connection changed state because the user disconnected it. */
        DeviceDisconnectedReason, /**< The VPN connection changed state because the device it was using was disconnected. */
        ServiceStoppedReason, /**< The service providing the VPN connection was stopped. */
        IpConfigInvalidReason, /**< The IP config of the VPN connection was invalid. */
        ConnectTimeoutReason, /**< The connection attempt to the VPN service timed out. */
        ServiceStartTimeoutReason, /**< A timeout occurred while starting the service providing the VPN connection. */
        ServiceStartFailedReason, /**< Starting the service starting the service providing the VPN connection failed. */
        NoSecretsReason, /**< Necessary secrets for the VPN connection were not provided. */
        LoginFailedReason, /**< Authentication to the VPN server failed. */
        ConnectionRemovedReason, /**< The connection was deleted from settings. */
    };
    Q_ENUM(StateChangeReason)

    /**
     * Creates a new VpnConnection object.
     *
     * @param path the DBus path of the device
     */
    explicit VpnConnection(const QString &path, QObject *parent = nullptr);
    /**
     * Destroys a VpnConnection object.
     */
    ~VpnConnection() override;
    /**
     * Return the current login banner
     */
    QString banner() const;
    /**
     * returns the current state
     */
    NetworkManager::VpnConnection::State state() const;
    /**
     * operator for casting an ActiveConnection into a VpnConnection. Returns 0 if this
     * object is not a VPN connection. Introduced to make it possible to create a VpnConnection
     * object for every active connection, without creating an ActiveConnection object, checking
     * if it's a VPN connection, deleting the ActiveConnection and creating a VpnConnection
     */
    operator VpnConnection *();

Q_SIGNALS:
    /**
     * This signal is emitted when the connection @p banner has changed
     */
    void bannerChanged(const QString &banner);
    /**
     * This signal is emitted when the VPN connection @p state has changed
     */
    void stateChanged(NetworkManager::VpnConnection::State state, NetworkManager::VpnConnection::StateChangeReason reason);

private:
    Q_DECLARE_PRIVATE(VpnConnection)
};

} // namespace NetworkManager
#endif // NETWORKMANAGERQT_VPNCONNECTION_H