examples/light-switch-app/nrfconnect/main/AppTask.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2022 Project CHIP Authors
  *    All rights reserved.
  *
  *    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.
  */

 #include "AppTask.h"
 #include "AppConfig.h"
 #include "LEDWidget.h"
 #include "LightSwitch.h"

 #include <DeviceInfoProviderImpl.h>
 #include <app/clusters/identify-server/identify-server.h>
 #include <app/clusters/ota-requestor/OTATestEventTriggerDelegate.h>
 #include <app/server/OnboardingCodesUtil.h>
 #include <app/server/Server.h>
 #include <credentials/DeviceAttestationCredsProvider.h>
 #include <credentials/examples/DeviceAttestationCredsExample.h>
 #include <lib/support/CHIPMem.h>
 #include <lib/support/CodeUtils.h>
 #include <lib/support/SafeInt.h>
 #include <platform/CHIPDeviceLayer.h>
 #include <system/SystemError.h>

 #ifdef CONFIG_CHIP_OTA_REQUESTOR
 #include "OTAUtil.h"
 #endif

 #include <dk_buttons_and_leds.h>
 #include <zephyr/logging/log.h>
 #include <zephyr/zephyr.h>

 using namespace ::chip;
 using namespace ::chip::app;
 using namespace ::chip::Credentials;
 using namespace ::chip::DeviceLayer;

 LOG_MODULE_DECLARE(app, CONFIG_MATTER_LOG_LEVEL);
 namespace {
 constexpr EndpointId kLightDimmerSwitchEndpointId  = 1;
 constexpr EndpointId kLightGenericSwitchEndpointId = 2;
 constexpr EndpointId kLightEndpointId              = 1;

 constexpr uint32_t kFactoryResetTriggerTimeout = 3000;
 constexpr uint32_t kFactoryResetCancelWindow   = 3000;
 constexpr uint32_t kDimmerTriggeredTimeout     = 500;
 constexpr uint32_t kDimmerInterval             = 300;
 constexpr uint32_t kIdentifyBlinkRateMs        = 500;
 constexpr size_t kAppEventQueueSize            = 10;

 K_MSGQ_DEFINE(sAppEventQueue, sizeof(AppEvent), kAppEventQueueSize, alignof(AppEvent));

 Identify sIdentify = { kLightEndpointId, AppTask::IdentifyStartHandler, AppTask::IdentifyStopHandler,
                        EMBER_ZCL_IDENTIFY_IDENTIFY_TYPE_VISIBLE_LED };

 // NOTE! This key is for test/certification only and should not be available in production devices!
 // If CONFIG_CHIP_FACTORY_DATA is enabled, this value is read from the factory data.
 uint8_t sTestEventTriggerEnableKey[TestEventTriggerDelegate::kEnableKeyLength] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
                                                                                    0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };

 LEDWidget sStatusLED;
 LEDWidget sBleLED;
 LEDWidget sIdentifyLED;
 LEDWidget sUnusedLED;

 bool sIsThreadProvisioned    = false;
 bool sIsThreadEnabled        = false;
 bool sIsThreadBLEAdvertising = false;
 #ifdef CONFIG_MCUMGR_SMP_BT
 bool sIsSMPAdvertising = false;
 #endif
 bool sHaveBLEConnections = false;
 bool sWasDimmerTriggered = false;

 k_timer sFunctionTimer;
 k_timer sDimmerPressKeyTimer;
 k_timer sDimmerTimer;

 chip::DeviceLayer::DeviceInfoProviderImpl gExampleDeviceInfoProvider;

 } /* namespace */

 AppTask AppTask::sAppTask;

 CHIP_ERROR AppTask::Init()
 {
     // Initialize CHIP
     LOG_INF("Init CHIP stack");

     CHIP_ERROR err = Platform::MemoryInit();
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("Platform::MemoryInit() failed");
         return err;
     }

     err = PlatformMgr().InitChipStack();
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("PlatformMgr().InitChipStack() failed");
         return err;
     }

     err = ThreadStackMgr().InitThreadStack();
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("ThreadStackMgr().InitThreadStack() failed: %s", ErrorStr(err));
         return err;
     }

 #ifdef CONFIG_OPENTHREAD_MTD_SED
     err = ConnectivityMgr().SetThreadDeviceType(ConnectivityManager::kThreadDeviceType_SleepyEndDevice);
 #else
     err = ConnectivityMgr().SetThreadDeviceType(ConnectivityManager::kThreadDeviceType_MinimalEndDevice);
 #endif
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("ConnectivityMgr().SetThreadDeviceType() failed: %s", ErrorStr(err));
         return err;
     }

     LightSwitch::GetInstance().Init(kLightDimmerSwitchEndpointId, kLightGenericSwitchEndpointId);

     // Initialize UI components
     LEDWidget::InitGpio();
     LEDWidget::SetStateUpdateCallback(LEDStateUpdateHandler);
     sStatusLED.Init(SYSTEM_STATE_LED);
     sBleLED.Init(DFU_BLE_LED);
     sIdentifyLED.Init(IDENTIFY_LED);
     sUnusedLED.Init(DK_LED4);
     UpdateStatusLED();

     int ret = dk_buttons_init(ButtonEventHandler);

     if (ret)
     {
         LOG_ERR("dk_buttons_init() failed");
         return System::MapErrorZephyr(ret);
     }

     // Initialize Timers
     k_timer_init(&sFunctionTimer, AppTask::TimerEventHandler, nullptr);
     k_timer_init(&sDimmerPressKeyTimer, AppTask::TimerEventHandler, nullptr);
     k_timer_init(&sDimmerTimer, AppTask::TimerEventHandler, nullptr);
     k_timer_user_data_set(&sDimmerTimer, this);
     k_timer_user_data_set(&sDimmerPressKeyTimer, this);
     k_timer_user_data_set(&sFunctionTimer, this);

     // Initialize DFU
 #ifdef CONFIG_MCUMGR_SMP_BT
     GetDFUOverSMP().Init(RequestSMPAdvertisingStart);
     GetDFUOverSMP().ConfirmNewImage();
 #endif

     // Print initial configs
 #if CONFIG_CHIP_FACTORY_DATA
     ReturnErrorOnFailure(mFactoryDataProvider.Init());
     SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
     SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
     SetCommissionableDataProvider(&mFactoryDataProvider);
     // Read EnableKey from the factory data.
     MutableByteSpan enableKey(sTestEventTriggerEnableKey);
     err = mFactoryDataProvider.GetEnableKey(enableKey);
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("mFactoryDataProvider.GetEnableKey() failed. Could not delegate a test event trigger");
         memset(sTestEventTriggerEnableKey, 0, sizeof(sTestEventTriggerEnableKey));
     }
 #else
     SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
 #endif

     static CommonCaseDeviceServerInitParams initParams;
     static OTATestEventTriggerDelegate testEventTriggerDelegate{ ByteSpan(sTestEventTriggerEnableKey) };
     (void) initParams.InitializeStaticResourcesBeforeServerInit();
     initParams.testEventTriggerDelegate = &testEventTriggerDelegate;
     ReturnErrorOnFailure(chip::Server::GetInstance().Init(initParams));

     gExampleDeviceInfoProvider.SetStorageDelegate(&Server::GetInstance().GetPersistentStorage());
     chip::DeviceLayer::SetDeviceInfoProvider(&gExampleDeviceInfoProvider);

     ConfigurationMgr().LogDeviceConfig();
     PrintOnboardingCodes(RendezvousInformationFlags(RendezvousInformationFlag::kBLE));

     // Add CHIP event handler and start CHIP thread.
     // Note that all the initialization code should happen prior to this point
     // to avoid data races between the main and the CHIP threads.
     PlatformMgr().AddEventHandler(ChipEventHandler, 0);

     err = PlatformMgr().StartEventLoopTask();
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("PlatformMgr().StartEventLoopTask() failed");
         return err;
     }

     return err;
 }

 CHIP_ERROR AppTask::StartApp()
 {
     ReturnErrorOnFailure(Init());

     AppEvent event{};

     while (true)
     {
         k_msgq_get(&sAppEventQueue, &event, K_FOREVER);
         DispatchEvent(&event);
     }

     return CHIP_NO_ERROR;
 }

 void AppTask::ButtonPushHandler(AppEvent * aEvent)
 {
     if (aEvent->Type == AppEvent::kEventType_Button)
     {
         switch (aEvent->ButtonEvent.PinNo)
         {
         case FUNCTION_BUTTON:
             sAppTask.StartTimer(Timer::Function, kFactoryResetTriggerTimeout);
             sAppTask.mFunction = TimerFunction::SoftwareUpdate;
             break;
         case DIMMER_SWITCH_BUTTON:
             LOG_INF("Button has been pressed, keep in this state for at least 500 ms to change light sensitivity of binded "
                     "lighting devices.");
             sAppTask.StartTimer(Timer::DimmerTrigger, kDimmerTriggeredTimeout);
             break;
         case GENERIC_SWITCH_BUTTON:
             LOG_INF("GenericSwitch: InitialPress");
             LightSwitch::GetInstance().GenericSwitchInitialPress();
             break;
         default:
             break;
         }
     }
 }

 void AppTask::ButtonReleaseHandler(AppEvent * aEvent)
 {

     if (aEvent->Type == AppEvent::kEventType_Button)
     {
         switch (aEvent->ButtonEvent.PinNo)
         {
         case FUNCTION_BUTTON:
             if (sAppTask.mFunction == TimerFunction::SoftwareUpdate)
             {
                 sAppTask.CancelTimer(Timer::Function);
                 sAppTask.mFunction = TimerFunction::NoneSelected;

 #ifdef CONFIG_MCUMGR_SMP_BT
                 GetDFUOverSMP().StartServer();
                 sIsSMPAdvertising = true;
                 UpdateStatusLED();
 #else
                 LOG_INF("Software update is disabled");
 #endif
             }
             else if (sAppTask.mFunction == TimerFunction::FactoryReset)
             {
                 UpdateStatusLED();

                 sAppTask.CancelTimer(Timer::Function);
                 sAppTask.mFunction = TimerFunction::NoneSelected;
                 LOG_INF("Factory Reset has been canceled");
             }
             break;
         case DIMMER_SWITCH_BUTTON:
             if (!sWasDimmerTriggered)
             {
                 LightSwitch::GetInstance().InitiateActionSwitch(LightSwitch::Action::Toggle);
             }
             sAppTask.CancelTimer(Timer::Dimmer);
             sAppTask.CancelTimer(Timer::DimmerTrigger);
             sWasDimmerTriggered = false;
             break;
         case GENERIC_SWITCH_BUTTON:
             LOG_INF("GenericSwitch: ShortRelease");
             LightSwitch::GetInstance().GenericSwitchReleasePress();
             break;
         default:
             break;
         }
     }
 }

 void AppTask::TimerEventHandler(AppEvent * aEvent)
 {
     if (aEvent->Type == AppEvent::kEventType_Timer)
     {
         switch ((Timer) aEvent->TimerEvent.TimerType)
         {
         case Timer::Function:
             if (sAppTask.mFunction == TimerFunction::SoftwareUpdate)
             {
                 LOG_INF("Factory Reset has been triggered. Release button within %u ms to cancel.", kFactoryResetCancelWindow);
                 sAppTask.StartTimer(Timer::Function, kFactoryResetCancelWindow);
                 sAppTask.mFunction = TimerFunction::FactoryReset;

 #ifdef CONFIG_STATE_LEDS
                 // reset all LEDs to synchronize factory reset blinking
                 sStatusLED.Set(false);
                 sIdentifyLED.Set(false);
                 sBleLED.Set(false);
                 sUnusedLED.Set(false);

                 sStatusLED.Blink(500);
                 sIdentifyLED.Blink(500);
                 sBleLED.Blink(500);
                 sUnusedLED.Blink(500);
 #endif
             }
             else if (sAppTask.mFunction == TimerFunction::FactoryReset)
             {
                 sAppTask.mFunction = TimerFunction::NoneSelected;
                 LOG_INF("Factory Reset triggered");
                 ConfigurationMgr().InitiateFactoryReset();
             }
             break;
         case Timer::DimmerTrigger:
             LOG_INF("Dimming started...");
             sWasDimmerTriggered = true;
             LightSwitch::GetInstance().InitiateActionSwitch(LightSwitch::Action::On);
             sAppTask.StartTimer(Timer::Dimmer, kDimmerInterval);
             sAppTask.CancelTimer(Timer::DimmerTrigger);
             break;
         case Timer::Dimmer:
             LightSwitch::GetInstance().DimmerChangeBrightness();
             break;
         default:
             break;
         }
     }
 }

 void AppTask::IdentifyStartHandler(Identify *)
 {
     AppEvent event;
     event.Type    = AppEvent::kEventType_IdentifyStart;
     event.Handler = [](AppEvent *) { sIdentifyLED.Blink(kIdentifyBlinkRateMs); };
     sAppTask.PostEvent(&event);
 }

 void AppTask::IdentifyStopHandler(Identify *)
 {
     AppEvent event;
     event.Type    = AppEvent::kEventType_IdentifyStop;
     event.Handler = [](AppEvent *) { sIdentifyLED.Set(false); };
     sAppTask.PostEvent(&event);
 }

 void AppTask::StartBLEAdvertisingHandler(AppEvent * aEvent)
 {
     /// Don't allow on starting Matter service BLE advertising after Thread provisioning.
     if (Server::GetInstance().GetFabricTable().FabricCount() != 0)
     {
         LOG_INF("Matter service BLE advertising not started - device is already commissioned");
         return;
     }

     if (ConnectivityMgr().IsBLEAdvertisingEnabled())
     {
         LOG_INF("BLE advertising is already enabled");
         return;
     }

     LOG_INF("Enabling BLE advertising...");
     if (Server::GetInstance().GetCommissioningWindowManager().OpenBasicCommissioningWindow() != CHIP_NO_ERROR)
     {
         LOG_ERR("OpenBasicCommissioningWindow() failed");
     }
 }

 void AppTask::ChipEventHandler(const ChipDeviceEvent * aEvent, intptr_t /* arg */)
 {
     switch (aEvent->Type)
     {
     case DeviceEventType::kCHIPoBLEAdvertisingChange:
         sIsThreadBLEAdvertising = true;
         UpdateStatusLED();
 #ifdef CONFIG_CHIP_NFC_COMMISSIONING
         if (aEvent->CHIPoBLEAdvertisingChange.Result == kActivity_Started)
         {
             if (NFCMgr().IsTagEmulationStarted())
             {
                 LOG_INF("NFC Tag emulation is already started");
             }
             else
             {
                 ShareQRCodeOverNFC(RendezvousInformationFlags(RendezvousInformationFlag::kBLE));
             }
         }
         else if (aEvent->CHIPoBLEAdvertisingChange.Result == kActivity_Stopped)
         {
             NFCMgr().StopTagEmulation();
         }
 #endif
         sHaveBLEConnections = ConnectivityMgr().NumBLEConnections() != 0;
         UpdateStatusLED();
         break;
     case DeviceEventType::kThreadStateChange:
         sIsThreadProvisioned = ConnectivityMgr().IsThreadProvisioned();
         sIsThreadEnabled     = ConnectivityMgr().IsThreadEnabled();
         UpdateStatusLED();
         break;
     case DeviceEventType::kThreadConnectivityChange:
 #if CONFIG_CHIP_OTA_REQUESTOR
         if (aEvent->ThreadConnectivityChange.Result == kConnectivity_Established)
         {
             InitBasicOTARequestor();
         }
 #endif
         break;
     default:
         if ((ConnectivityMgr().NumBLEConnections() == 0) && (!sIsThreadProvisioned || !sIsThreadEnabled))
         {
             LOG_ERR("Commissioning with a Thread network has not been done. An error occurred...");
             sIsThreadBLEAdvertising = false;
             sHaveBLEConnections     = false;
             UpdateStatusLED();
         }
         break;
     }
 }

 void AppTask::UpdateStatusLED()
 {
 #ifdef CONFIG_STATE_LEDS
     sUnusedLED.Set(false);

     // Status LED indicates:
     // - blinking 1 s - advertising, ready to commission
     // - blinking 200 ms - commissioning in progress
     // - constant lightning means commissioned with Thread network
     if (sIsThreadBLEAdvertising && !sHaveBLEConnections)
     {
         sStatusLED.Blink(50, 950);
     }
     else if (sIsThreadProvisioned && sIsThreadEnabled)
     {
         sStatusLED.Set(true);
     }
     else if (sHaveBLEConnections)
     {
         sStatusLED.Blink(30, 170);
     }
     else
     {
         sStatusLED.Set(false);
     }

 // Ble LED indicates BLE connectivity:
 //- blinking 200 ms means BLE advertising
 #ifdef CONFIG_MCUMGR_SMP_BT
     if (sIsSMPAdvertising)
     {
         sBleLED.Blink(30, 170);
     }
     else
     {
         sBleLED.Set(false);
     }
 #else
     sBleLED.Set(false);
 #endif
 #endif
 }

 void AppTask::ButtonEventHandler(uint32_t aButtonState, uint32_t aHasChanged)
 {

     AppEvent buttonEvent;
     buttonEvent.Type = AppEvent::kEventType_Button;

     if (FUNCTION_BUTTON_MASK & aButtonState & aHasChanged)
     {
         buttonEvent.ButtonEvent.PinNo  = FUNCTION_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
         buttonEvent.Handler            = ButtonPushHandler;
         sAppTask.PostEvent(&buttonEvent);
     }
     else if (FUNCTION_BUTTON_MASK & aHasChanged)
     {
         buttonEvent.ButtonEvent.PinNo  = FUNCTION_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonReleaseEvent;
         buttonEvent.Handler            = ButtonReleaseHandler;
         sAppTask.PostEvent(&buttonEvent);
     }

     if (DIMMER_SWITCH_BUTTON_MASK & aButtonState & aHasChanged)
     {
         buttonEvent.ButtonEvent.PinNo  = DIMMER_SWITCH_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
         buttonEvent.Handler            = ButtonPushHandler;
         sAppTask.PostEvent(&buttonEvent);
     }
     else if (DIMMER_SWITCH_BUTTON_MASK & aHasChanged)
     {
         buttonEvent.ButtonEvent.PinNo  = DIMMER_SWITCH_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonReleaseEvent;
         buttonEvent.Handler            = ButtonReleaseHandler;
         sAppTask.PostEvent(&buttonEvent);
     }

     if (GENERIC_SWITCH_BUTTON_MASK & aButtonState & aHasChanged)
     {
         buttonEvent.ButtonEvent.PinNo  = GENERIC_SWITCH_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
         buttonEvent.Handler            = ButtonPushHandler;
         sAppTask.PostEvent(&buttonEvent);
     }
     else if (GENERIC_SWITCH_BUTTON_MASK & aHasChanged)
     {
         buttonEvent.ButtonEvent.PinNo  = GENERIC_SWITCH_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonReleaseEvent;
         buttonEvent.Handler            = ButtonReleaseHandler;
         sAppTask.PostEvent(&buttonEvent);
     }

     if (BLE_ADVERTISEMENT_START_BUTTON_MASK & aHasChanged & aButtonState)
     {
         buttonEvent.ButtonEvent.PinNo  = BLE_ADVERTISEMENT_START_BUTTON;
         buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
         buttonEvent.Handler            = StartBLEAdvertisingHandler;
         sAppTask.PostEvent(&buttonEvent);
     }
 }

 void AppTask::StartTimer(Timer aTimer, uint32_t aTimeoutMs)
 {
     switch (aTimer)
     {
     case Timer::Function:
         k_timer_start(&sFunctionTimer, K_MSEC(aTimeoutMs), K_NO_WAIT);
         break;
     case Timer::DimmerTrigger:
         k_timer_start(&sDimmerPressKeyTimer, K_MSEC(aTimeoutMs), K_NO_WAIT);
         break;
     case Timer::Dimmer:
         k_timer_start(&sDimmerTimer, K_MSEC(aTimeoutMs), K_MSEC(aTimeoutMs));
         break;
     default:
         break;
     }
 }

 void AppTask::CancelTimer(Timer aTimer)
 {
     switch (aTimer)
     {
     case Timer::Function:
         k_timer_stop(&sFunctionTimer);
         break;
     case Timer::DimmerTrigger:
         k_timer_stop(&sDimmerPressKeyTimer);
         break;
     case Timer::Dimmer:
         k_timer_stop(&sDimmerTimer);
         break;
     default:
         break;
     }
 }

 void AppTask::UpdateLedStateEventHandler(AppEvent * aEvent)
 {
     if (aEvent->Type == AppEvent::kEventType_UpdateLedState)
     {
         aEvent->UpdateLedStateEvent.LedWidget->UpdateState();
     }
 }

 void AppTask::LEDStateUpdateHandler(LEDWidget & aLedWidget)
 {
     AppEvent event;
     event.Type                          = AppEvent::kEventType_UpdateLedState;
     event.Handler                       = UpdateLedStateEventHandler;
     event.UpdateLedStateEvent.LedWidget = &aLedWidget;
     sAppTask.PostEvent(&event);
 }

 void AppTask::TimerEventHandler(k_timer * aTimer)
 {
     AppEvent event;
     if (aTimer == &sFunctionTimer)
     {
         event.Type                 = AppEvent::kEventType_Timer;
         event.TimerEvent.TimerType = (uint8_t) Timer::Function;
         event.TimerEvent.Context   = k_timer_user_data_get(aTimer);
         event.Handler              = TimerEventHandler;
         sAppTask.PostEvent(&event);
     }
     if (aTimer == &sDimmerPressKeyTimer)
     {
         event.Type                 = AppEvent::kEventType_Timer;
         event.TimerEvent.TimerType = (uint8_t) Timer::DimmerTrigger;
         event.TimerEvent.Context   = k_timer_user_data_get(aTimer);
         event.Handler              = TimerEventHandler;
         sAppTask.PostEvent(&event);
     }
     if (aTimer == &sDimmerTimer)
     {
         event.Type                 = AppEvent::kEventType_Timer;
         event.TimerEvent.TimerType = (uint8_t) Timer::Dimmer;
         event.TimerEvent.Context   = k_timer_user_data_get(aTimer);
         event.Handler              = TimerEventHandler;
         sAppTask.PostEvent(&event);
     }
 }

 #ifdef CONFIG_MCUMGR_SMP_BT
 void AppTask::RequestSMPAdvertisingStart(void)
 {
     AppEvent event;
     event.Type    = AppEvent::kEventType_StartSMPAdvertising;
     event.Handler = [](AppEvent *) { GetDFUOverSMP().StartBLEAdvertising(); };
     sAppTask.PostEvent(&event);
 }
 #endif

 void AppTask::PostEvent(AppEvent * aEvent)
 {
     if (k_msgq_put(&sAppEventQueue, aEvent, K_NO_WAIT) != 0)
     {
         LOG_INF("Failed to post event to app task event queue");
     }
 }

 void AppTask::DispatchEvent(AppEvent * aEvent)
 {
     if (aEvent->Handler)
     {
         aEvent->Handler(aEvent);
     }
     else
     {
         LOG_INF("Event received with no handler. Dropping event.");
     }
 }
	/*
	*
	* Copyright (c) 2022 Project CHIP Authors
	* All rights reserved.
	*
	* 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.
	*/

	#include "AppTask.h"
	#include "AppConfig.h"
	#include "LEDWidget.h"
	#include "LightSwitch.h"

	#include <DeviceInfoProviderImpl.h>
	#include <app/clusters/identify-server/identify-server.h>
	#include <app/clusters/ota-requestor/OTATestEventTriggerDelegate.h>
	#include <app/server/OnboardingCodesUtil.h>
	#include <app/server/Server.h>
	#include <credentials/DeviceAttestationCredsProvider.h>
	#include <credentials/examples/DeviceAttestationCredsExample.h>
	#include <lib/support/CHIPMem.h>
	#include <lib/support/CodeUtils.h>
	#include <lib/support/SafeInt.h>
	#include <platform/CHIPDeviceLayer.h>
	#include <system/SystemError.h>

	#ifdef CONFIG_CHIP_OTA_REQUESTOR
	#include "OTAUtil.h"
	#endif

	#include <dk_buttons_and_leds.h>
	#include <zephyr/logging/log.h>
	#include <zephyr/zephyr.h>

	using namespace ::chip;
	using namespace ::chip::app;
	using namespace ::chip::Credentials;
	using namespace ::chip::DeviceLayer;

	LOG_MODULE_DECLARE(app, CONFIG_MATTER_LOG_LEVEL);
	namespace {
	constexpr EndpointId kLightDimmerSwitchEndpointId = 1;
	constexpr EndpointId kLightGenericSwitchEndpointId = 2;
	constexpr EndpointId kLightEndpointId = 1;

	constexpr uint32_t kFactoryResetTriggerTimeout = 3000;
	constexpr uint32_t kFactoryResetCancelWindow = 3000;
	constexpr uint32_t kDimmerTriggeredTimeout = 500;
	constexpr uint32_t kDimmerInterval = 300;
	constexpr uint32_t kIdentifyBlinkRateMs = 500;
	constexpr size_t kAppEventQueueSize = 10;

	K_MSGQ_DEFINE(sAppEventQueue, sizeof(AppEvent), kAppEventQueueSize, alignof(AppEvent));

	Identify sIdentify = { kLightEndpointId, AppTask::IdentifyStartHandler, AppTask::IdentifyStopHandler,
	EMBER_ZCL_IDENTIFY_IDENTIFY_TYPE_VISIBLE_LED };

	// NOTE! This key is for test/certification only and should not be available in production devices!
	// If CONFIG_CHIP_FACTORY_DATA is enabled, this value is read from the factory data.
	uint8_t sTestEventTriggerEnableKey[TestEventTriggerDelegate::kEnableKeyLength] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
	0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };

	LEDWidget sStatusLED;
	LEDWidget sBleLED;
	LEDWidget sIdentifyLED;
	LEDWidget sUnusedLED;

	bool sIsThreadProvisioned = false;
	bool sIsThreadEnabled = false;
	bool sIsThreadBLEAdvertising = false;
	#ifdef CONFIG_MCUMGR_SMP_BT
	bool sIsSMPAdvertising = false;
	#endif
	bool sHaveBLEConnections = false;
	bool sWasDimmerTriggered = false;

	k_timer sFunctionTimer;
	k_timer sDimmerPressKeyTimer;
	k_timer sDimmerTimer;

	chip::DeviceLayer::DeviceInfoProviderImpl gExampleDeviceInfoProvider;

	} /* namespace */

	AppTask AppTask::sAppTask;

	CHIP_ERROR AppTask::Init()
	{
	// Initialize CHIP
	LOG_INF("Init CHIP stack");

	CHIP_ERROR err = Platform::MemoryInit();
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("Platform::MemoryInit() failed");
	return err;
	}

	err = PlatformMgr().InitChipStack();
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("PlatformMgr().InitChipStack() failed");
	return err;
	}

	err = ThreadStackMgr().InitThreadStack();
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("ThreadStackMgr().InitThreadStack() failed: %s", ErrorStr(err));
	return err;
	}

	#ifdef CONFIG_OPENTHREAD_MTD_SED
	err = ConnectivityMgr().SetThreadDeviceType(ConnectivityManager::kThreadDeviceType_SleepyEndDevice);
	#else
	err = ConnectivityMgr().SetThreadDeviceType(ConnectivityManager::kThreadDeviceType_MinimalEndDevice);
	#endif
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("ConnectivityMgr().SetThreadDeviceType() failed: %s", ErrorStr(err));
	return err;
	}

	LightSwitch::GetInstance().Init(kLightDimmerSwitchEndpointId, kLightGenericSwitchEndpointId);

	// Initialize UI components
	LEDWidget::InitGpio();
	LEDWidget::SetStateUpdateCallback(LEDStateUpdateHandler);
	sStatusLED.Init(SYSTEM_STATE_LED);
	sBleLED.Init(DFU_BLE_LED);
	sIdentifyLED.Init(IDENTIFY_LED);
	sUnusedLED.Init(DK_LED4);
	UpdateStatusLED();

	int ret = dk_buttons_init(ButtonEventHandler);

	if (ret)
	{
	LOG_ERR("dk_buttons_init() failed");
	return System::MapErrorZephyr(ret);
	}

	// Initialize Timers
	k_timer_init(&sFunctionTimer, AppTask::TimerEventHandler, nullptr);
	k_timer_init(&sDimmerPressKeyTimer, AppTask::TimerEventHandler, nullptr);
	k_timer_init(&sDimmerTimer, AppTask::TimerEventHandler, nullptr);
	k_timer_user_data_set(&sDimmerTimer, this);
	k_timer_user_data_set(&sDimmerPressKeyTimer, this);
	k_timer_user_data_set(&sFunctionTimer, this);

	// Initialize DFU
	#ifdef CONFIG_MCUMGR_SMP_BT
	GetDFUOverSMP().Init(RequestSMPAdvertisingStart);
	GetDFUOverSMP().ConfirmNewImage();
	#endif

	// Print initial configs
	#if CONFIG_CHIP_FACTORY_DATA
	ReturnErrorOnFailure(mFactoryDataProvider.Init());
	SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
	SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
	SetCommissionableDataProvider(&mFactoryDataProvider);
	// Read EnableKey from the factory data.
	MutableByteSpan enableKey(sTestEventTriggerEnableKey);
	err = mFactoryDataProvider.GetEnableKey(enableKey);
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("mFactoryDataProvider.GetEnableKey() failed. Could not delegate a test event trigger");
	memset(sTestEventTriggerEnableKey, 0, sizeof(sTestEventTriggerEnableKey));
	}
	#else
	SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
	#endif

	static CommonCaseDeviceServerInitParams initParams;
	static OTATestEventTriggerDelegate testEventTriggerDelegate{ ByteSpan(sTestEventTriggerEnableKey) };
	(void) initParams.InitializeStaticResourcesBeforeServerInit();
	initParams.testEventTriggerDelegate = &testEventTriggerDelegate;
	ReturnErrorOnFailure(chip::Server::GetInstance().Init(initParams));

	gExampleDeviceInfoProvider.SetStorageDelegate(&Server::GetInstance().GetPersistentStorage());
	chip::DeviceLayer::SetDeviceInfoProvider(&gExampleDeviceInfoProvider);

	ConfigurationMgr().LogDeviceConfig();
	PrintOnboardingCodes(RendezvousInformationFlags(RendezvousInformationFlag::kBLE));

	// Add CHIP event handler and start CHIP thread.
	// Note that all the initialization code should happen prior to this point
	// to avoid data races between the main and the CHIP threads.
	PlatformMgr().AddEventHandler(ChipEventHandler, 0);

	err = PlatformMgr().StartEventLoopTask();
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("PlatformMgr().StartEventLoopTask() failed");
	return err;
	}

	return err;
	}

	CHIP_ERROR AppTask::StartApp()
	{
	ReturnErrorOnFailure(Init());

	AppEvent event{};

	while (true)
	{
	k_msgq_get(&sAppEventQueue, &event, K_FOREVER);
	DispatchEvent(&event);
	}

	return CHIP_NO_ERROR;
	}

	void AppTask::ButtonPushHandler(AppEvent * aEvent)
	{
	if (aEvent->Type == AppEvent::kEventType_Button)
	{
	switch (aEvent->ButtonEvent.PinNo)
	{
	case FUNCTION_BUTTON:
	sAppTask.StartTimer(Timer::Function, kFactoryResetTriggerTimeout);
	sAppTask.mFunction = TimerFunction::SoftwareUpdate;
	break;
	case DIMMER_SWITCH_BUTTON:
	LOG_INF("Button has been pressed, keep in this state for at least 500 ms to change light sensitivity of binded "
	"lighting devices.");
	sAppTask.StartTimer(Timer::DimmerTrigger, kDimmerTriggeredTimeout);
	break;
	case GENERIC_SWITCH_BUTTON:
	LOG_INF("GenericSwitch: InitialPress");
	LightSwitch::GetInstance().GenericSwitchInitialPress();
	break;
	default:
	break;
	}
	}
	}

	void AppTask::ButtonReleaseHandler(AppEvent * aEvent)
	{

	if (aEvent->Type == AppEvent::kEventType_Button)
	{
	switch (aEvent->ButtonEvent.PinNo)
	{
	case FUNCTION_BUTTON:
	if (sAppTask.mFunction == TimerFunction::SoftwareUpdate)
	{
	sAppTask.CancelTimer(Timer::Function);
	sAppTask.mFunction = TimerFunction::NoneSelected;

	#ifdef CONFIG_MCUMGR_SMP_BT
	GetDFUOverSMP().StartServer();
	sIsSMPAdvertising = true;
	UpdateStatusLED();
	#else
	LOG_INF("Software update is disabled");
	#endif
	}
	else if (sAppTask.mFunction == TimerFunction::FactoryReset)
	{
	UpdateStatusLED();

	sAppTask.CancelTimer(Timer::Function);
	sAppTask.mFunction = TimerFunction::NoneSelected;
	LOG_INF("Factory Reset has been canceled");
	}
	break;
	case DIMMER_SWITCH_BUTTON:
	if (!sWasDimmerTriggered)
	{
	LightSwitch::GetInstance().InitiateActionSwitch(LightSwitch::Action::Toggle);
	}
	sAppTask.CancelTimer(Timer::Dimmer);
	sAppTask.CancelTimer(Timer::DimmerTrigger);
	sWasDimmerTriggered = false;
	break;
	case GENERIC_SWITCH_BUTTON:
	LOG_INF("GenericSwitch: ShortRelease");
	LightSwitch::GetInstance().GenericSwitchReleasePress();
	break;
	default:
	break;
	}
	}
	}

	void AppTask::TimerEventHandler(AppEvent * aEvent)
	{
	if (aEvent->Type == AppEvent::kEventType_Timer)
	{
	switch ((Timer) aEvent->TimerEvent.TimerType)
	{
	case Timer::Function:
	if (sAppTask.mFunction == TimerFunction::SoftwareUpdate)
	{
	LOG_INF("Factory Reset has been triggered. Release button within %u ms to cancel.", kFactoryResetCancelWindow);
	sAppTask.StartTimer(Timer::Function, kFactoryResetCancelWindow);
	sAppTask.mFunction = TimerFunction::FactoryReset;

	#ifdef CONFIG_STATE_LEDS
	// reset all LEDs to synchronize factory reset blinking
	sStatusLED.Set(false);
	sIdentifyLED.Set(false);
	sBleLED.Set(false);
	sUnusedLED.Set(false);

	sStatusLED.Blink(500);
	sIdentifyLED.Blink(500);
	sBleLED.Blink(500);
	sUnusedLED.Blink(500);
	#endif
	}
	else if (sAppTask.mFunction == TimerFunction::FactoryReset)
	{
	sAppTask.mFunction = TimerFunction::NoneSelected;
	LOG_INF("Factory Reset triggered");
	ConfigurationMgr().InitiateFactoryReset();
	}
	break;
	case Timer::DimmerTrigger:
	LOG_INF("Dimming started...");
	sWasDimmerTriggered = true;
	LightSwitch::GetInstance().InitiateActionSwitch(LightSwitch::Action::On);
	sAppTask.StartTimer(Timer::Dimmer, kDimmerInterval);
	sAppTask.CancelTimer(Timer::DimmerTrigger);
	break;
	case Timer::Dimmer:
	LightSwitch::GetInstance().DimmerChangeBrightness();
	break;
	default:
	break;
	}
	}
	}

	void AppTask::IdentifyStartHandler(Identify *)
	{
	AppEvent event;
	event.Type = AppEvent::kEventType_IdentifyStart;
	event.Handler = [](AppEvent *) { sIdentifyLED.Blink(kIdentifyBlinkRateMs); };
	sAppTask.PostEvent(&event);
	}

	void AppTask::IdentifyStopHandler(Identify *)
	{
	AppEvent event;
	event.Type = AppEvent::kEventType_IdentifyStop;
	event.Handler = [](AppEvent *) { sIdentifyLED.Set(false); };
	sAppTask.PostEvent(&event);
	}

	void AppTask::StartBLEAdvertisingHandler(AppEvent * aEvent)
	{
	/// Don't allow on starting Matter service BLE advertising after Thread provisioning.
	if (Server::GetInstance().GetFabricTable().FabricCount() != 0)
	{
	LOG_INF("Matter service BLE advertising not started - device is already commissioned");
	return;
	}

	if (ConnectivityMgr().IsBLEAdvertisingEnabled())
	{
	LOG_INF("BLE advertising is already enabled");
	return;
	}

	LOG_INF("Enabling BLE advertising...");
	if (Server::GetInstance().GetCommissioningWindowManager().OpenBasicCommissioningWindow() != CHIP_NO_ERROR)
	{
	LOG_ERR("OpenBasicCommissioningWindow() failed");
	}
	}

	void AppTask::ChipEventHandler(const ChipDeviceEvent * aEvent, intptr_t /* arg */)
	{
	switch (aEvent->Type)
	{
	case DeviceEventType::kCHIPoBLEAdvertisingChange:
	sIsThreadBLEAdvertising = true;
	UpdateStatusLED();
	#ifdef CONFIG_CHIP_NFC_COMMISSIONING
	if (aEvent->CHIPoBLEAdvertisingChange.Result == kActivity_Started)
	{
	if (NFCMgr().IsTagEmulationStarted())
	{
	LOG_INF("NFC Tag emulation is already started");
	}
	else
	{
	ShareQRCodeOverNFC(RendezvousInformationFlags(RendezvousInformationFlag::kBLE));
	}
	}
	else if (aEvent->CHIPoBLEAdvertisingChange.Result == kActivity_Stopped)
	{
	NFCMgr().StopTagEmulation();
	}
	#endif
	sHaveBLEConnections = ConnectivityMgr().NumBLEConnections() != 0;
	UpdateStatusLED();
	break;
	case DeviceEventType::kThreadStateChange:
	sIsThreadProvisioned = ConnectivityMgr().IsThreadProvisioned();
	sIsThreadEnabled = ConnectivityMgr().IsThreadEnabled();
	UpdateStatusLED();
	break;
	case DeviceEventType::kThreadConnectivityChange:
	#if CONFIG_CHIP_OTA_REQUESTOR
	if (aEvent->ThreadConnectivityChange.Result == kConnectivity_Established)
	{
	InitBasicOTARequestor();
	}
	#endif
	break;
	default:
	if ((ConnectivityMgr().NumBLEConnections() == 0) && (!sIsThreadProvisioned \|\| !sIsThreadEnabled))
	{
	LOG_ERR("Commissioning with a Thread network has not been done. An error occurred...");
	sIsThreadBLEAdvertising = false;
	sHaveBLEConnections = false;
	UpdateStatusLED();
	}
	break;
	}
	}

	void AppTask::UpdateStatusLED()
	{
	#ifdef CONFIG_STATE_LEDS
	sUnusedLED.Set(false);

	// Status LED indicates:
	// - blinking 1 s - advertising, ready to commission
	// - blinking 200 ms - commissioning in progress
	// - constant lightning means commissioned with Thread network
	if (sIsThreadBLEAdvertising && !sHaveBLEConnections)
	{
	sStatusLED.Blink(50, 950);
	}
	else if (sIsThreadProvisioned && sIsThreadEnabled)
	{
	sStatusLED.Set(true);
	}
	else if (sHaveBLEConnections)
	{
	sStatusLED.Blink(30, 170);
	}
	else
	{
	sStatusLED.Set(false);
	}

	// Ble LED indicates BLE connectivity:
	//- blinking 200 ms means BLE advertising
	#ifdef CONFIG_MCUMGR_SMP_BT
	if (sIsSMPAdvertising)
	{
	sBleLED.Blink(30, 170);
	}
	else
	{
	sBleLED.Set(false);
	}
	#else
	sBleLED.Set(false);
	#endif
	#endif
	}

	void AppTask::ButtonEventHandler(uint32_t aButtonState, uint32_t aHasChanged)
	{

	AppEvent buttonEvent;
	buttonEvent.Type = AppEvent::kEventType_Button;

	if (FUNCTION_BUTTON_MASK & aButtonState & aHasChanged)
	{
	buttonEvent.ButtonEvent.PinNo = FUNCTION_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
	buttonEvent.Handler = ButtonPushHandler;
	sAppTask.PostEvent(&buttonEvent);
	}
	else if (FUNCTION_BUTTON_MASK & aHasChanged)
	{
	buttonEvent.ButtonEvent.PinNo = FUNCTION_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonReleaseEvent;
	buttonEvent.Handler = ButtonReleaseHandler;
	sAppTask.PostEvent(&buttonEvent);
	}

	if (DIMMER_SWITCH_BUTTON_MASK & aButtonState & aHasChanged)
	{
	buttonEvent.ButtonEvent.PinNo = DIMMER_SWITCH_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
	buttonEvent.Handler = ButtonPushHandler;
	sAppTask.PostEvent(&buttonEvent);
	}
	else if (DIMMER_SWITCH_BUTTON_MASK & aHasChanged)
	{
	buttonEvent.ButtonEvent.PinNo = DIMMER_SWITCH_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonReleaseEvent;
	buttonEvent.Handler = ButtonReleaseHandler;
	sAppTask.PostEvent(&buttonEvent);
	}

	if (GENERIC_SWITCH_BUTTON_MASK & aButtonState & aHasChanged)
	{
	buttonEvent.ButtonEvent.PinNo = GENERIC_SWITCH_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
	buttonEvent.Handler = ButtonPushHandler;
	sAppTask.PostEvent(&buttonEvent);
	}
	else if (GENERIC_SWITCH_BUTTON_MASK & aHasChanged)
	{
	buttonEvent.ButtonEvent.PinNo = GENERIC_SWITCH_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonReleaseEvent;
	buttonEvent.Handler = ButtonReleaseHandler;
	sAppTask.PostEvent(&buttonEvent);
	}

	if (BLE_ADVERTISEMENT_START_BUTTON_MASK & aHasChanged & aButtonState)
	{
	buttonEvent.ButtonEvent.PinNo = BLE_ADVERTISEMENT_START_BUTTON;
	buttonEvent.ButtonEvent.Action = AppEvent::kButtonPushEvent;
	buttonEvent.Handler = StartBLEAdvertisingHandler;
	sAppTask.PostEvent(&buttonEvent);
	}
	}

	void AppTask::StartTimer(Timer aTimer, uint32_t aTimeoutMs)
	{
	switch (aTimer)
	{
	case Timer::Function:
	k_timer_start(&sFunctionTimer, K_MSEC(aTimeoutMs), K_NO_WAIT);
	break;
	case Timer::DimmerTrigger:
	k_timer_start(&sDimmerPressKeyTimer, K_MSEC(aTimeoutMs), K_NO_WAIT);
	break;
	case Timer::Dimmer:
	k_timer_start(&sDimmerTimer, K_MSEC(aTimeoutMs), K_MSEC(aTimeoutMs));
	break;
	default:
	break;
	}
	}

	void AppTask::CancelTimer(Timer aTimer)
	{
	switch (aTimer)
	{
	case Timer::Function:
	k_timer_stop(&sFunctionTimer);
	break;
	case Timer::DimmerTrigger:
	k_timer_stop(&sDimmerPressKeyTimer);
	break;
	case Timer::Dimmer:
	k_timer_stop(&sDimmerTimer);
	break;
	default:
	break;
	}
	}

	void AppTask::UpdateLedStateEventHandler(AppEvent * aEvent)
	{
	if (aEvent->Type == AppEvent::kEventType_UpdateLedState)
	{
	aEvent->UpdateLedStateEvent.LedWidget->UpdateState();
	}
	}

	void AppTask::LEDStateUpdateHandler(LEDWidget & aLedWidget)
	{
	AppEvent event;
	event.Type = AppEvent::kEventType_UpdateLedState;
	event.Handler = UpdateLedStateEventHandler;
	event.UpdateLedStateEvent.LedWidget = &aLedWidget;
	sAppTask.PostEvent(&event);
	}

	void AppTask::TimerEventHandler(k_timer * aTimer)
	{
	AppEvent event;
	if (aTimer == &sFunctionTimer)
	{
	event.Type = AppEvent::kEventType_Timer;
	event.TimerEvent.TimerType = (uint8_t) Timer::Function;
	event.TimerEvent.Context = k_timer_user_data_get(aTimer);
	event.Handler = TimerEventHandler;
	sAppTask.PostEvent(&event);
	}
	if (aTimer == &sDimmerPressKeyTimer)
	{
	event.Type = AppEvent::kEventType_Timer;
	event.TimerEvent.TimerType = (uint8_t) Timer::DimmerTrigger;
	event.TimerEvent.Context = k_timer_user_data_get(aTimer);
	event.Handler = TimerEventHandler;
	sAppTask.PostEvent(&event);
	}
	if (aTimer == &sDimmerTimer)
	{
	event.Type = AppEvent::kEventType_Timer;
	event.TimerEvent.TimerType = (uint8_t) Timer::Dimmer;
	event.TimerEvent.Context = k_timer_user_data_get(aTimer);
	event.Handler = TimerEventHandler;
	sAppTask.PostEvent(&event);
	}
	}

	#ifdef CONFIG_MCUMGR_SMP_BT
	void AppTask::RequestSMPAdvertisingStart(void)
	{
	AppEvent event;
	event.Type = AppEvent::kEventType_StartSMPAdvertising;
	event.Handler = [](AppEvent *) { GetDFUOverSMP().StartBLEAdvertising(); };
	sAppTask.PostEvent(&event);
	}
	#endif

	void AppTask::PostEvent(AppEvent * aEvent)
	{
	if (k_msgq_put(&sAppEventQueue, aEvent, K_NO_WAIT) != 0)
	{
	LOG_INF("Failed to post event to app task event queue");
	}
	}

	void AppTask::DispatchEvent(AppEvent * aEvent)
	{
	if (aEvent->Handler)
	{
	aEvent->Handler(aEvent);
	}
	else
	{
	LOG_INF("Event received with no handler. Dropping event.");
	}
	}