examples/all-clusters-minimal-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 "AppEvent.h"
 #include "LEDUtil.h"
 #include "binding-handler.h"

 #include <app/server/OnboardingCodesUtil.h>
 #include <app/server/Server.h>

 #include <app-common/zap-generated/attribute-id.h>
 #include <app-common/zap-generated/attribute-type.h>
 #include <app-common/zap-generated/cluster-id.h>
 #include <app/util/attribute-storage.h>

 #include <credentials/DeviceAttestationCredsProvider.h>
 #include <credentials/examples/DeviceAttestationCredsExample.h>

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

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

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

 #define FACTORY_RESET_TRIGGER_TIMEOUT 3000
 #define FACTORY_RESET_CANCEL_WINDOW_TIMEOUT 3000
 #define APP_EVENT_QUEUE_SIZE 10
 #define BUTTON_PUSH_EVENT 1
 #define BUTTON_RELEASE_EVENT 0

 LOG_MODULE_DECLARE(app, CONFIG_MATTER_LOG_LEVEL);
 K_MSGQ_DEFINE(sAppEventQueue, sizeof(AppEvent), APP_EVENT_QUEUE_SIZE, alignof(AppEvent));

 static LEDWidget sStatusLED;
 static UnusedLedsWrapper<3> sUnusedLeds{ { DK_LED2, DK_LED3, DK_LED4 } };
 static k_timer sFunctionTimer;

 constexpr EndpointId kNetworkCommissioningEndpointSecondary = 0xFFFE;

 namespace LedConsts {
 constexpr uint32_t kBlinkRate_ms{ 500 };
 namespace StatusLed {
 namespace Unprovisioned {
 constexpr uint32_t kOn_ms{ 100 };
 constexpr uint32_t kOff_ms{ kOn_ms };
 } // namespace Unprovisioned
 namespace Provisioned {
 constexpr uint32_t kOn_ms{ 50 };
 constexpr uint32_t kOff_ms{ 950 };
 } // namespace Provisioned

 } // namespace StatusLed
 } // namespace LedConsts

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

     CHIP_ERROR err = chip::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");
         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");
         return err;
     }

     // Initialize LEDs
     LEDWidget::InitGpio();
     LEDWidget::SetStateUpdateCallback(LEDStateUpdateHandler);

     sStatusLED.Init(SYSTEM_STATE_LED);

     UpdateStatusLED();

     // Initialize buttons
     auto ret = dk_buttons_init(ButtonEventHandler);
     if (ret)
     {
         LOG_ERR("dk_buttons_init() failed");
         return chip::System::MapErrorZephyr(ret);
     }
     err = InitBindingHandlers();
     if (err != CHIP_NO_ERROR)
     {
         LOG_ERR("InitBindingHandlers() failed");
     }

     // Initialize timer user data
     k_timer_init(&sFunctionTimer, &AppTask::TimerEventHandler, nullptr);
     k_timer_user_data_set(&sFunctionTimer, this);

     // Initialize CHIP server
 #if CONFIG_CHIP_FACTORY_DATA
     ReturnErrorOnFailure(mFactoryDataProvider.Init());
     SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
     SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
     SetCommissionableDataProvider(&mFactoryDataProvider);
 #else
     SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
 #endif

     static chip::CommonCaseDeviceServerInitParams initParams;
     (void) initParams.InitializeStaticResourcesBeforeServerInit();
     ReturnErrorOnFailure(chip::Server::GetInstance().Init(initParams));

     // We only have network commissioning on endpoint 0.
     emberAfEndpointEnableDisable(kNetworkCommissioningEndpointSecondary, false);
     ConfigurationMgr().LogDeviceConfig();
     PrintOnboardingCodes(chip::RendezvousInformationFlag(chip::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;
 }

 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::ButtonEventHandler(uint32_t aButtonState, uint32_t aHasChanged)
 {
     AppEvent event;
     event.Type = AppEvent::Type::Button;

     if (FUNCTION_BUTTON_MASK & aHasChanged)
     {
         event.ButtonEvent.PinNo  = FUNCTION_BUTTON;
         event.ButtonEvent.Action = (FUNCTION_BUTTON_MASK & aButtonState) ? BUTTON_PUSH_EVENT : BUTTON_RELEASE_EVENT;
         event.Handler            = FunctionHandler;
         PostEvent(&event);
     }

     if (BLE_ADVERTISEMENT_START_BUTTON_MASK & aButtonState & aHasChanged)
     {
         event.ButtonEvent.PinNo  = BLE_ADVERTISEMENT_START_BUTTON;
         event.ButtonEvent.Action = BUTTON_PUSH_EVENT;
         event.Handler            = StartBLEAdvertisementHandler;
         PostEvent(&event);
     }
 }

 void AppTask::TimerEventHandler(k_timer * aTimer)
 {
     if (!aTimer)
         return;

     AppEvent event;
     event.Type               = AppEvent::Type::Timer;
     event.TimerEvent.Context = k_timer_user_data_get(aTimer);
     event.Handler            = FunctionTimerEventHandler;
     PostEvent(&event);
 }

 void AppTask::FunctionTimerEventHandler(AppEvent * aEvent)
 {
     if (!aEvent)
         return;
     if (aEvent->Type != AppEvent::Type::Timer)
         return;

     // If we reached here, the button was held past FACTORY_RESET_TRIGGER_TIMEOUT, initiate factory reset
     if (Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::Normal)
     {
         LOG_INF("Factory Reset Triggered. Release button within %ums to cancel.", FACTORY_RESET_TRIGGER_TIMEOUT);

         // Start timer for FACTORY_RESET_CANCEL_WINDOW_TIMEOUT to allow user to cancel, if required.
         StartTimer(FACTORY_RESET_CANCEL_WINDOW_TIMEOUT);
         Instance().mMode = OperatingMode::FactoryReset;

 #ifdef CONFIG_STATE_LEDS
         // Turn off all LEDs before starting blink to make sure blink is co-ordinated.
         sStatusLED.Set(false);
         sUnusedLeds.Set(false);

         sStatusLED.Blink(LedConsts::kBlinkRate_ms);
         sUnusedLeds.Blink(LedConsts::kBlinkRate_ms);
 #endif
     }
     else if (Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::FactoryReset)
     {
         // Actually trigger Factory Reset
         Instance().mMode = OperatingMode::Normal;
         ConfigurationMgr().InitiateFactoryReset();
     }
 }

 void AppTask::FunctionHandler(AppEvent * aEvent)
 {
     if (!aEvent)
         return;
     if (aEvent->ButtonEvent.PinNo != FUNCTION_BUTTON)
         return;

     // To initiate factory reset: press the FUNCTION_BUTTON for FACTORY_RESET_TRIGGER_TIMEOUT + FACTORY_RESET_CANCEL_WINDOW_TIMEOUT
     // All LEDs start blinking after FACTORY_RESET_TRIGGER_TIMEOUT to signal factory reset has been initiated.
     // To cancel factory reset: release the FUNCTION_BUTTON once all LEDs start blinking within the
     // FACTORY_RESET_CANCEL_WINDOW_TIMEOUT
     if (aEvent->ButtonEvent.Action == BUTTON_PUSH_EVENT)
     {
         if (!Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::Normal)
         {
             StartTimer(FACTORY_RESET_TRIGGER_TIMEOUT);
         }
     }
     else
     {
         if (Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::FactoryReset)
         {
             sUnusedLeds.Set(false);

             UpdateStatusLED();
             CancelTimer();

             // Change the function to none selected since factory reset has been canceled.
             Instance().mMode = OperatingMode::Normal;

             LOG_INF("Factory Reset has been Canceled");
         }
         else if (Instance().mFunctionTimerActive)
         {
             CancelTimer();
             Instance().mMode = OperatingMode::Normal;
         }
     }
 }

 void AppTask::StartBLEAdvertisementHandler(AppEvent *)
 {
     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;
     }

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

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

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

 void AppTask::UpdateStatusLED()
 {
 #ifdef CONFIG_STATE_LEDS
     /* Update the status LED.
      *
      * If thread and service provisioned, keep the LED On constantly.
      *
      * If the system has ble connection(s) uptill the stage above, THEN blink the LED at an even
      * rate of 100ms.
      *
      * Otherwise, blink the LED On for a very short time. */
     if (Instance().mIsThreadProvisioned && Instance().mIsThreadEnabled)
     {
         sStatusLED.Set(true);
     }
     else if (Instance().mHaveBLEConnections)
     {
         sStatusLED.Blink(LedConsts::StatusLed::Unprovisioned::kOn_ms, LedConsts::StatusLed::Unprovisioned::kOff_ms);
     }
     else
     {
         sStatusLED.Blink(LedConsts::StatusLed::Provisioned::kOn_ms, LedConsts::StatusLed::Provisioned::kOff_ms);
     }
 #endif
 }

 void AppTask::ChipEventHandler(const ChipDeviceEvent * aEvent, intptr_t /* aArg */)
 {
     if (!aEvent)
         return;
     switch (aEvent->Type)
     {
     case DeviceEventType::kCHIPoBLEAdvertisingChange:
         Instance().mHaveBLEConnections = ConnectivityMgr().NumBLEConnections() != 0;
         UpdateStatusLED();
         break;
     case DeviceEventType::kThreadStateChange:
         Instance().mIsThreadProvisioned = ConnectivityMgr().IsThreadProvisioned();
         Instance().mIsThreadEnabled     = ConnectivityMgr().IsThreadEnabled();
         UpdateStatusLED();
         break;
     case DeviceEventType::kDnssdPlatformInitialized:
 #if CONFIG_CHIP_OTA_REQUESTOR
         InitBasicOTARequestor();
 #endif
         break;
     default:
         break;
     }
 }

 void AppTask::CancelTimer()
 {
     k_timer_stop(&sFunctionTimer);
     Instance().mFunctionTimerActive = false;
 }

 void AppTask::StartTimer(uint32_t aTimeoutInMs)
 {
     k_timer_start(&sFunctionTimer, K_MSEC(aTimeoutInMs), K_NO_WAIT);
     Instance().mFunctionTimerActive = true;
 }

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

 void AppTask::DispatchEvent(AppEvent * aEvent)
 {
     if (!aEvent)
         return;
     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 "AppEvent.h"
	#include "LEDUtil.h"
	#include "binding-handler.h"

	#include <app/server/OnboardingCodesUtil.h>
	#include <app/server/Server.h>

	#include <app-common/zap-generated/attribute-id.h>
	#include <app-common/zap-generated/attribute-type.h>
	#include <app-common/zap-generated/cluster-id.h>
	#include <app/util/attribute-storage.h>

	#include <credentials/DeviceAttestationCredsProvider.h>
	#include <credentials/examples/DeviceAttestationCredsExample.h>

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

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

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

	#define FACTORY_RESET_TRIGGER_TIMEOUT 3000
	#define FACTORY_RESET_CANCEL_WINDOW_TIMEOUT 3000
	#define APP_EVENT_QUEUE_SIZE 10
	#define BUTTON_PUSH_EVENT 1
	#define BUTTON_RELEASE_EVENT 0

	LOG_MODULE_DECLARE(app, CONFIG_MATTER_LOG_LEVEL);
	K_MSGQ_DEFINE(sAppEventQueue, sizeof(AppEvent), APP_EVENT_QUEUE_SIZE, alignof(AppEvent));

	static LEDWidget sStatusLED;
	static UnusedLedsWrapper<3> sUnusedLeds{ { DK_LED2, DK_LED3, DK_LED4 } };
	static k_timer sFunctionTimer;

	constexpr EndpointId kNetworkCommissioningEndpointSecondary = 0xFFFE;

	namespace LedConsts {
	constexpr uint32_t kBlinkRate_ms{ 500 };
	namespace StatusLed {
	namespace Unprovisioned {
	constexpr uint32_t kOn_ms{ 100 };
	constexpr uint32_t kOff_ms{ kOn_ms };
	} // namespace Unprovisioned
	namespace Provisioned {
	constexpr uint32_t kOn_ms{ 50 };
	constexpr uint32_t kOff_ms{ 950 };
	} // namespace Provisioned

	} // namespace StatusLed
	} // namespace LedConsts

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

	CHIP_ERROR err = chip::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");
	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");
	return err;
	}

	// Initialize LEDs
	LEDWidget::InitGpio();
	LEDWidget::SetStateUpdateCallback(LEDStateUpdateHandler);

	sStatusLED.Init(SYSTEM_STATE_LED);

	UpdateStatusLED();

	// Initialize buttons
	auto ret = dk_buttons_init(ButtonEventHandler);
	if (ret)
	{
	LOG_ERR("dk_buttons_init() failed");
	return chip::System::MapErrorZephyr(ret);
	}
	err = InitBindingHandlers();
	if (err != CHIP_NO_ERROR)
	{
	LOG_ERR("InitBindingHandlers() failed");
	}

	// Initialize timer user data
	k_timer_init(&sFunctionTimer, &AppTask::TimerEventHandler, nullptr);
	k_timer_user_data_set(&sFunctionTimer, this);

	// Initialize CHIP server
	#if CONFIG_CHIP_FACTORY_DATA
	ReturnErrorOnFailure(mFactoryDataProvider.Init());
	SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
	SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
	SetCommissionableDataProvider(&mFactoryDataProvider);
	#else
	SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
	#endif

	static chip::CommonCaseDeviceServerInitParams initParams;
	(void) initParams.InitializeStaticResourcesBeforeServerInit();
	ReturnErrorOnFailure(chip::Server::GetInstance().Init(initParams));

	// We only have network commissioning on endpoint 0.
	emberAfEndpointEnableDisable(kNetworkCommissioningEndpointSecondary, false);
	ConfigurationMgr().LogDeviceConfig();
	PrintOnboardingCodes(chip::RendezvousInformationFlag(chip::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;
	}

	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::ButtonEventHandler(uint32_t aButtonState, uint32_t aHasChanged)
	{
	AppEvent event;
	event.Type = AppEvent::Type::Button;

	if (FUNCTION_BUTTON_MASK & aHasChanged)
	{
	event.ButtonEvent.PinNo = FUNCTION_BUTTON;
	event.ButtonEvent.Action = (FUNCTION_BUTTON_MASK & aButtonState) ? BUTTON_PUSH_EVENT : BUTTON_RELEASE_EVENT;
	event.Handler = FunctionHandler;
	PostEvent(&event);
	}

	if (BLE_ADVERTISEMENT_START_BUTTON_MASK & aButtonState & aHasChanged)
	{
	event.ButtonEvent.PinNo = BLE_ADVERTISEMENT_START_BUTTON;
	event.ButtonEvent.Action = BUTTON_PUSH_EVENT;
	event.Handler = StartBLEAdvertisementHandler;
	PostEvent(&event);
	}
	}

	void AppTask::TimerEventHandler(k_timer * aTimer)
	{
	if (!aTimer)
	return;

	AppEvent event;
	event.Type = AppEvent::Type::Timer;
	event.TimerEvent.Context = k_timer_user_data_get(aTimer);
	event.Handler = FunctionTimerEventHandler;
	PostEvent(&event);
	}

	void AppTask::FunctionTimerEventHandler(AppEvent * aEvent)
	{
	if (!aEvent)
	return;
	if (aEvent->Type != AppEvent::Type::Timer)
	return;

	// If we reached here, the button was held past FACTORY_RESET_TRIGGER_TIMEOUT, initiate factory reset
	if (Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::Normal)
	{
	LOG_INF("Factory Reset Triggered. Release button within %ums to cancel.", FACTORY_RESET_TRIGGER_TIMEOUT);

	// Start timer for FACTORY_RESET_CANCEL_WINDOW_TIMEOUT to allow user to cancel, if required.
	StartTimer(FACTORY_RESET_CANCEL_WINDOW_TIMEOUT);
	Instance().mMode = OperatingMode::FactoryReset;

	#ifdef CONFIG_STATE_LEDS
	// Turn off all LEDs before starting blink to make sure blink is co-ordinated.
	sStatusLED.Set(false);
	sUnusedLeds.Set(false);

	sStatusLED.Blink(LedConsts::kBlinkRate_ms);
	sUnusedLeds.Blink(LedConsts::kBlinkRate_ms);
	#endif
	}
	else if (Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::FactoryReset)
	{
	// Actually trigger Factory Reset
	Instance().mMode = OperatingMode::Normal;
	ConfigurationMgr().InitiateFactoryReset();
	}
	}

	void AppTask::FunctionHandler(AppEvent * aEvent)
	{
	if (!aEvent)
	return;
	if (aEvent->ButtonEvent.PinNo != FUNCTION_BUTTON)
	return;

	// To initiate factory reset: press the FUNCTION_BUTTON for FACTORY_RESET_TRIGGER_TIMEOUT + FACTORY_RESET_CANCEL_WINDOW_TIMEOUT
	// All LEDs start blinking after FACTORY_RESET_TRIGGER_TIMEOUT to signal factory reset has been initiated.
	// To cancel factory reset: release the FUNCTION_BUTTON once all LEDs start blinking within the
	// FACTORY_RESET_CANCEL_WINDOW_TIMEOUT
	if (aEvent->ButtonEvent.Action == BUTTON_PUSH_EVENT)
	{
	if (!Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::Normal)
	{
	StartTimer(FACTORY_RESET_TRIGGER_TIMEOUT);
	}
	}
	else
	{
	if (Instance().mFunctionTimerActive && Instance().mMode == OperatingMode::FactoryReset)
	{
	sUnusedLeds.Set(false);

	UpdateStatusLED();
	CancelTimer();

	// Change the function to none selected since factory reset has been canceled.
	Instance().mMode = OperatingMode::Normal;

	LOG_INF("Factory Reset has been Canceled");
	}
	else if (Instance().mFunctionTimerActive)
	{
	CancelTimer();
	Instance().mMode = OperatingMode::Normal;
	}
	}
	}

	void AppTask::StartBLEAdvertisementHandler(AppEvent *)
	{
	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;
	}

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

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

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

	void AppTask::UpdateStatusLED()
	{
	#ifdef CONFIG_STATE_LEDS
	/* Update the status LED.
	*
	* If thread and service provisioned, keep the LED On constantly.
	*
	* If the system has ble connection(s) uptill the stage above, THEN blink the LED at an even
	* rate of 100ms.
	*
	* Otherwise, blink the LED On for a very short time. */
	if (Instance().mIsThreadProvisioned && Instance().mIsThreadEnabled)
	{
	sStatusLED.Set(true);
	}
	else if (Instance().mHaveBLEConnections)
	{
	sStatusLED.Blink(LedConsts::StatusLed::Unprovisioned::kOn_ms, LedConsts::StatusLed::Unprovisioned::kOff_ms);
	}
	else
	{
	sStatusLED.Blink(LedConsts::StatusLed::Provisioned::kOn_ms, LedConsts::StatusLed::Provisioned::kOff_ms);
	}
	#endif
	}

	void AppTask::ChipEventHandler(const ChipDeviceEvent * aEvent, intptr_t /* aArg */)
	{
	if (!aEvent)
	return;
	switch (aEvent->Type)
	{
	case DeviceEventType::kCHIPoBLEAdvertisingChange:
	Instance().mHaveBLEConnections = ConnectivityMgr().NumBLEConnections() != 0;
	UpdateStatusLED();
	break;
	case DeviceEventType::kThreadStateChange:
	Instance().mIsThreadProvisioned = ConnectivityMgr().IsThreadProvisioned();
	Instance().mIsThreadEnabled = ConnectivityMgr().IsThreadEnabled();
	UpdateStatusLED();
	break;
	case DeviceEventType::kDnssdPlatformInitialized:
	#if CONFIG_CHIP_OTA_REQUESTOR
	InitBasicOTARequestor();
	#endif
	break;
	default:
	break;
	}
	}

	void AppTask::CancelTimer()
	{
	k_timer_stop(&sFunctionTimer);
	Instance().mFunctionTimerActive = false;
	}

	void AppTask::StartTimer(uint32_t aTimeoutInMs)
	{
	k_timer_start(&sFunctionTimer, K_MSEC(aTimeoutInMs), K_NO_WAIT);
	Instance().mFunctionTimerActive = true;
	}

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

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