/*
 *
 *    Copyright (c) 2020 Project CHIP Authors
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#pragma once

#include <platform/CHIPDeviceConfig.h>

#include <platform/ConnectivityManager.h>
#include <platform/internal/GenericConnectivityManagerImpl.h>
#include <platform/internal/GenericConnectivityManagerImpl_UDP.h>

#if INET_CONFIG_ENABLE_TCP_ENDPOINT
#include <platform/internal/GenericConnectivityManagerImpl_TCP.h>
#endif

#if CHIP_DEVICE_CONFIG_ENABLE_WIFI
#include <netsocket/WiFiInterface.h>
#include <platform/internal/GenericConnectivityManagerImpl_WiFi.h>
#else
#include <platform/internal/GenericConnectivityManagerImpl_NoWiFi.h>
#endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI

#if CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE
#include <platform/internal/GenericConnectivityManagerImpl_BLE.h>
#else
#include <platform/internal/GenericConnectivityManagerImpl_NoBLE.h>
#endif // CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE

#if CHIP_DEVICE_CONFIG_ENABLE_THREAD
#include <platform/internal/GenericConnectivityManagerImpl_Thread.h>
#else
#include <platform/internal/GenericConnectivityManagerImpl_NoThread.h>
#endif // CHIP_DEVICE_CONFIG_ENABLE_THREAD

namespace chip {
namespace DeviceLayer {

/**
 * Concrete implementation of the ConnectivityManager singleton object for mbed platforms.
 */
class ConnectivityManagerImpl final : public ConnectivityManager,
                                      public Internal::GenericConnectivityManagerImpl<ConnectivityManagerImpl>,
                                      public Internal::GenericConnectivityManagerImpl_UDP<ConnectivityManagerImpl>,
#if INET_CONFIG_ENABLE_TCP_ENDPOINT
                                      public Internal::GenericConnectivityManagerImpl_TCP<ConnectivityManagerImpl>,
#endif
#if CHIP_DEVICE_CONFIG_ENABLE_WIFI
                                      public Internal::GenericConnectivityManagerImpl_WiFi<ConnectivityManagerImpl>,
#else
                                      public Internal::GenericConnectivityManagerImpl_NoWiFi<ConnectivityManagerImpl>,
#endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI
#if CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE
                                      public Internal::GenericConnectivityManagerImpl_BLE<ConnectivityManagerImpl>,
#else
                                      public Internal::GenericConnectivityManagerImpl_NoBLE<ConnectivityManagerImpl>,
#endif // CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE
#if CHIP_DEVICE_CONFIG_ENABLE_THREAD
                                      public Internal::GenericConnectivityManagerImpl_Thread<ConnectivityManagerImpl>,
#else
                                      public Internal::GenericConnectivityManagerImpl_NoThread<ConnectivityManagerImpl>
#endif // CHIP_DEVICE_CONFIG_ENABLE_THREAD

{
    // Allow the ConnectivityManager interface class to delegate method calls to
    // the implementation methods provided by this class.
    friend class ConnectivityManager;

private:
    CHIP_ERROR _Init(void);
    void _OnPlatformEvent(const ChipDeviceEvent * event);

#if CHIP_DEVICE_CONFIG_ENABLE_WIFI
private:
    CHIP_ERROR InitWiFi(void);
    void OnWiFiPlatformEvent(const ChipDeviceEvent * event);

    void ChangeWiFiStationState(WiFiStationState newState);

    WiFiStationMode _GetWiFiStationMode();
    CHIP_ERROR _SetWiFiStationMode(WiFiStationMode val);
    bool _IsWiFiStationEnabled();
    bool _IsWiFiStationApplicationControlled();
    System::Clock::Timeout _GetWiFiStationReconnectInterval();
    CHIP_ERROR _SetWiFiStationReconnectInterval(System::Clock::Timeout val);
    bool _IsWiFiStationProvisioned();
    bool _IsWiFiStationConnected(void);
    void _ClearWiFiStationProvision();

    // ===== Members for internal use by the following friends.

    WiFiStationMode mWiFiStationMode   = kWiFiStationMode_NotSupported;
    WiFiStationState mWiFiStationState = kWiFiStationState_NotConnected;
    System::Clock::Timeout mWiFiStationReconnectInterval =
        System::Clock::Milliseconds32(CHIP_DEVICE_CONFIG_WIFI_STATION_RECONNECT_INTERVAL);
    bool mIsProvisioned = false;
#endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI

    friend ConnectivityManager & ConnectivityMgr(void);
    friend ConnectivityManagerImpl & ConnectivityMgrImpl(void);

    static ConnectivityManagerImpl sInstance;

public:
    CHIP_ERROR PostEvent(const ChipDeviceEvent * event, bool die);
    void AddTask(AsyncWorkFunct workFunct, intptr_t arg);
    void AddQueueEvent(void (*func)(nsapi_event_t, intptr_t), nsapi_event_t event, intptr_t data);
};

#if CHIP_DEVICE_CONFIG_ENABLE_WIFI
inline ConnectivityManager::WiFiStationMode ConnectivityManagerImpl::_GetWiFiStationMode(void)
{
    return mWiFiStationMode;
}

inline bool ConnectivityManagerImpl::_IsWiFiStationEnabled(void)
{
    return mWiFiStationMode == kWiFiStationMode_Enabled;
}

inline bool ConnectivityManagerImpl::_IsWiFiStationApplicationControlled(void)
{
    return mWiFiStationMode == kWiFiStationMode_ApplicationControlled;
}

inline System::Clock::Timeout ConnectivityManagerImpl::_GetWiFiStationReconnectInterval(void)
{
    return mWiFiStationReconnectInterval;
}

inline bool ConnectivityManagerImpl::_IsWiFiStationProvisioned(void)
{
    return mIsProvisioned;
}

inline bool ConnectivityManagerImpl::_IsWiFiStationConnected(void)
{
    return mWiFiStationState == kWiFiStationState_Connected;
}

#endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI

/**
 * Returns the public interface of the ConnectivityManager singleton object.
 *
 * chip applications should use this to access features of the ConnectivityManager object
 * that are common to all platforms.
 */
inline ConnectivityManager & ConnectivityMgr(void)
{
    return ConnectivityManagerImpl::sInstance;
}

/**
 * Returns the platform-specific implementation of the ConnectivityManager singleton object.
 *
 * chip applications can use this to gain access to features of the ConnectivityManager
 * that are specific to the mbed platform.
 */
inline ConnectivityManagerImpl & ConnectivityMgrImpl(void)
{
    return ConnectivityManagerImpl::sInstance;
}

} // namespace DeviceLayer
} // namespace chip