/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2014 Denis Shienkov <denis.shienkov@gmail.com>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
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** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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****************************************************************************/

#ifndef QBLUETOOTHLOCALDEVICE_P_H
#define QBLUETOOTHLOCALDEVICE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtBluetooth/qtbluetoothglobal.h>

#include "qbluetoothlocaldevice.h"

#if QT_CONFIG(bluez)
#include <QObject>
#include <QDBusObjectPath>
#include <QDBusMessage>
#include <QSet>
#include "bluez/bluez5_helper_p.h"

class OrgBluezAdapter1Interface;
class OrgFreedesktopDBusPropertiesInterface;
class OrgFreedesktopDBusObjectManagerInterface;
class OrgBluezDevice1Interface;

QT_BEGIN_NAMESPACE
class QDBusPendingCallWatcher;
QT_END_NAMESPACE
#endif

#ifdef QT_WINRT_BLUETOOTH
#include "qbluetoothutils_winrt_p.h"
#include <winrt/Windows.Devices.Bluetooth.h>
QT_BEGIN_NAMESPACE
struct PairingWorker;
QT_END_NAMESPACE
#endif

#ifdef QT_ANDROID_BLUETOOTH
#include <jni.h>
#include <QtCore/QJniEnvironment>
#include <QtCore/QJniObject>
#include <QtCore/QPair>
#endif

QT_BEGIN_NAMESPACE

extern void registerQBluetoothLocalDeviceMetaType();

class QBluetoothAddress;

#ifdef QT_ANDROID_BLUETOOTH
class LocalDeviceBroadcastReceiver;
class QBluetoothLocalDevicePrivate : public QObject
{
    Q_OBJECT
public:
    QBluetoothLocalDevicePrivate(
        QBluetoothLocalDevice *q, const QBluetoothAddress &address = QBluetoothAddress());
    ~QBluetoothLocalDevicePrivate();

    QJniObject *adapter();
    void initialize(const QBluetoothAddress &address);
    static bool startDiscovery();
    static bool cancelDiscovery();
    static bool isDiscovering();
    bool isValid() const;

private slots:
    void processHostModeChange(QBluetoothLocalDevice::HostMode newMode);
    void processPairingStateChanged(const QBluetoothAddress &address,
                                    QBluetoothLocalDevice::Pairing pairing);
    void processConnectDeviceChanges(const QBluetoothAddress &address, bool isConnectEvent);

private:
    QBluetoothLocalDevice *q_ptr;
    QJniObject *obj = nullptr;

    int pendingPairing(const QBluetoothAddress &address);

public:
    LocalDeviceBroadcastReceiver *receiver;
    bool pendingConnectableHostModeTransition = false;
    QList<QPair<QBluetoothAddress, bool> > pendingPairings;

    QList<QBluetoothAddress> connectedDevices;
};

#elif QT_CONFIG(bluez)
class QBluetoothLocalDevicePrivate : public QObject
{
    Q_OBJECT
    Q_DECLARE_PUBLIC(QBluetoothLocalDevice)
public:
    QBluetoothLocalDevicePrivate(QBluetoothLocalDevice *q,
                                 QBluetoothAddress localAddress = QBluetoothAddress());
    ~QBluetoothLocalDevicePrivate();

    QSet<QBluetoothAddress> connectedDevicesSet;
    OrgBluezAdapter1Interface *adapter = nullptr;
    OrgFreedesktopDBusPropertiesInterface *adapterProperties = nullptr;
    OrgFreedesktopDBusObjectManagerInterface *manager = nullptr;
    QMap<QString, OrgFreedesktopDBusPropertiesInterface *> deviceChangeMonitors;

    QList<QBluetoothAddress> connectedDevices() const;

    QBluetoothAddress localAddress;
    QBluetoothAddress address;
    QBluetoothLocalDevice::Pairing pairing;
    OrgBluezDevice1Interface *pairingTarget = nullptr;
    QTimer *pairingDiscoveryTimer = nullptr;
    QBluetoothLocalDevice::HostMode currentMode;
    int pendingHostModeChange;

public slots:
    void pairingCompleted(QDBusPendingCallWatcher *);

    bool isValid() const;

    void requestPairing(const QBluetoothAddress &address,
                        QBluetoothLocalDevice::Pairing targetPairing);

private Q_SLOTS:
    void PropertiesChanged(const QString &interface,
                           const QVariantMap &changed_properties,
                           const QStringList &invalidated_properties,
                           const QDBusMessage &signal);
    void InterfacesAdded(const QDBusObjectPath &object_path,
                         InterfaceList interfaces_and_properties);
    void InterfacesRemoved(const QDBusObjectPath &object_path,
                           const QStringList &interfaces);
    void processPairing(const QString &objectPath, QBluetoothLocalDevice::Pairing target);
    void pairingDiscoveryTimedOut();

private:
    void connectDeviceChanges();

    QString deviceAdapterPath;

    QBluetoothLocalDevice *q_ptr;

    void initializeAdapter();
};

#elif defined(QT_WINRT_BLUETOOTH)
class QBluetoothLocalDevicePrivate : public QObject
{
    Q_OBJECT
    Q_DECLARE_PUBLIC(QBluetoothLocalDevice)
public:
    QBluetoothLocalDevicePrivate(QBluetoothLocalDevice *q,
                                 QBluetoothAddress = QBluetoothAddress());
    ~QBluetoothLocalDevicePrivate();

    bool isValid() const;

    void updateAdapterState(QBluetoothLocalDevice::HostMode mode);
    Q_SLOT void onAdapterRemoved(winrt::hstring id);
    Q_SLOT void onAdapterAdded(winrt::hstring id);
    Q_SLOT void radioModeChanged(winrt::hstring id, QBluetoothLocalDevice::HostMode mode);

    QBluetoothLocalDevice *q_ptr;
    winrt::com_ptr<PairingWorker> mPairingWorker;
    winrt::Windows::Devices::Bluetooth::BluetoothAdapter mAdapter;
    winrt::hstring mDeviceId;
    QString mAdapterName;
    QBluetoothLocalDevice::HostMode mMode;
    winrt::event_token mModeChangeToken;

signals:
    void updateMode(winrt::hstring id, QBluetoothLocalDevice::HostMode mode);
};
#elif !defined(QT_OSX_BLUETOOTH) // dummy backend
class QBluetoothLocalDevicePrivate : public QObject
{
public:
    QBluetoothLocalDevicePrivate(QBluetoothLocalDevice * = nullptr,
                                 QBluetoothAddress = QBluetoothAddress())
    {
    }

    bool isValid() const
    {
        return false;
    }
};
#endif

QT_END_NAMESPACE

#endif // QBLUETOOTHLOCALDEVICE_P_H
