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

 /*
  *
  *    Copyright (c) 2020 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 "LEDWidget.h"
 #include "LightingManager.h"
 #include "ThreadUtil.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>

 #include <platform/CHIPDeviceLayer.h>

 #include <lib/support/ErrorStr.h>
 #include <system/SystemClock.h>

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

 LOG_MODULE_DECLARE(app);

 namespace {

 constexpr int kFactoryResetTriggerTimeout      = 3000;
 constexpr int kFactoryResetCancelWindowTimeout = 3000;
 constexpr int kAppEventQueueSize               = 10;
 constexpr int kExampleVendorID                 = 0xabcd;
 constexpr uint8_t kButtonPushEvent             = 1;
 constexpr uint8_t kButtonReleaseEvent          = 0;

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

 LEDWidget sStatusLED;
 LEDWidget sUnusedLED;
 LEDWidget sUnusedLED_1;

 bool sIsThreadProvisioned     = false;
 bool sIsThreadEnabled         = false;
 bool sHaveBLEConnections      = false;
 bool sHaveServiceConnectivity = false;

 } // namespace

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

 AppTask AppTask::sAppTask;

 int AppTask::Init()
 {
     // Initialize LEDs
     LEDWidget::InitGpio();

     sStatusLED.Init(SYSTEM_STATE_LED);
     sUnusedLED.Init(DK_LED3);
     sUnusedLED_1.Init(DK_LED4);

     // Initialize buttons
     int ret = dk_buttons_init(ButtonEventHandler);
     if (ret)
     {
         LOG_ERR("dk_buttons_init() failed");
         return ret;
     }

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

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

     ret = LightingMgr().Init(LIGHTING_PWM_DEVICE, LIGHTING_PWM_CHANNEL);
     if (ret != 0)
         return ret;

     LightingMgr().SetCallbacks(ActionInitiated, ActionCompleted);

     // Init ZCL Data Model and start server
     InitServer();

     // Initialize device attestation config
     SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
     ConfigurationMgr().LogDeviceConfig();
     PrintOnboardingCodes(chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE));

 #if defined(CONFIG_CHIP_NFC_COMMISSIONING)
     PlatformMgr().AddEventHandler(ChipEventHandler, 0);
 #endif

     return 0;
 }

 int AppTask::StartApp()
 {
     int ret = Init();

     if (ret)
     {
         LOG_ERR("AppTask.Init() failed");
         return ret;
     }

     AppEvent event = {};

     while (true)
     {
         ret = k_msgq_get(&sAppEventQueue, &event, K_MSEC(10));

         while (!ret)
         {
             DispatchEvent(&event);
             ret = k_msgq_get(&sAppEventQueue, &event, K_NO_WAIT);
         }

         // Collect connectivity and configuration state from the CHIP stack.  Because the
         // CHIP event loop is being run in a separate task, the stack must be locked
         // while these values are queried.  However we use a non-blocking lock request
         // (TryLockChipStack()) to avoid blocking other UI activities when the CHIP
         // task is busy (e.g. with a long crypto operation).

         if (PlatformMgr().TryLockChipStack())
         {
             sIsThreadProvisioned     = ConnectivityMgr().IsThreadProvisioned();
             sIsThreadEnabled         = ConnectivityMgr().IsThreadEnabled();
             sHaveBLEConnections      = (ConnectivityMgr().NumBLEConnections() != 0);
             sHaveServiceConnectivity = ConnectivityMgr().HaveServiceConnectivity();
             PlatformMgr().UnlockChipStack();
         }

         // Update the status LED if factory reset has not been initiated.
         //
         // If system has "full connectivity", keep the LED On constantly.
         //
         // If thread and service provisioned, but not attached to the thread network yet OR no
         // connectivity to the service OR subscriptions are not fully established
         // THEN blink the LED Off for a short period of time.
         //
         // If the system has ble connection(s) uptill the stage above, THEN blink the LEDs at an even
         // rate of 100ms.
         //
         // Otherwise, blink the LED ON for a very short time.
         if (sAppTask.mFunction != kFunction_FactoryReset)
         {
             if (sHaveServiceConnectivity)
             {
                 sStatusLED.Set(true);
             }
             else if (sIsThreadProvisioned && sIsThreadEnabled)
             {
                 sStatusLED.Blink(950, 50);
             }
             else if (sHaveBLEConnections)
             {
                 sStatusLED.Blink(100, 100);
             }
             else
             {
                 sStatusLED.Blink(50, 950);
             }
         }

         sStatusLED.Animate();
         sUnusedLED.Animate();
         sUnusedLED_1.Animate();
     }
 }

 void AppTask::LightingActionEventHandler(AppEvent * aEvent)
 {
     LightingManager::Action_t action = LightingManager::INVALID_ACTION;
     int32_t actor                    = 0;

     if (aEvent->Type == AppEvent::kEventType_Lighting)
     {
         action = static_cast<LightingManager::Action_t>(aEvent->LightingEvent.Action);
         actor  = aEvent->LightingEvent.Actor;
     }
     else if (aEvent->Type == AppEvent::kEventType_Button)
     {
         action = LightingMgr().IsTurnedOn() ? LightingManager::OFF_ACTION : LightingManager::ON_ACTION;
         actor  = AppEvent::kEventType_Button;
     }

     if (action != LightingManager::INVALID_ACTION && !LightingMgr().InitiateAction(action, actor, 0, NULL))
         LOG_INF("Action is already in progress or active.");
 }

 void AppTask::ButtonEventHandler(uint32_t button_state, uint32_t has_changed)
 {
     AppEvent button_event;
     button_event.Type = AppEvent::kEventType_Button;

     if (LIGHTING_BUTTON_MASK & button_state & has_changed)
     {
         button_event.ButtonEvent.PinNo  = LIGHTING_BUTTON;
         button_event.ButtonEvent.Action = kButtonPushEvent;
         button_event.Handler            = LightingActionEventHandler;
         sAppTask.PostEvent(&button_event);
     }

     if (FUNCTION_BUTTON_MASK & has_changed)
     {
         button_event.ButtonEvent.PinNo  = FUNCTION_BUTTON;
         button_event.ButtonEvent.Action = (FUNCTION_BUTTON_MASK & button_state) ? kButtonPushEvent : kButtonReleaseEvent;
         button_event.Handler            = FunctionHandler;
         sAppTask.PostEvent(&button_event);
     }

     if (THREAD_START_BUTTON_MASK & button_state & has_changed)
     {
         button_event.ButtonEvent.PinNo  = THREAD_START_BUTTON;
         button_event.ButtonEvent.Action = kButtonPushEvent;
         button_event.Handler            = StartThreadHandler;
         sAppTask.PostEvent(&button_event);
     }

     if (BLE_ADVERTISEMENT_START_BUTTON_MASK & button_state & has_changed)
     {
         button_event.ButtonEvent.PinNo  = BLE_ADVERTISEMENT_START_BUTTON;
         button_event.ButtonEvent.Action = kButtonPushEvent;
         button_event.Handler            = StartBLEAdvertisementHandler;
         sAppTask.PostEvent(&button_event);
     }
 }

 void AppTask::TimerEventHandler(k_timer * timer)
 {
     AppEvent event;
     event.Type               = AppEvent::kEventType_Timer;
     event.TimerEvent.Context = k_timer_user_data_get(timer);
     event.Handler            = FunctionTimerEventHandler;
     sAppTask.PostEvent(&event);
 }

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

     // If we reached here, the button was held past kFactoryResetTriggerTimeout, initiate factory reset
     if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_SoftwareUpdate)
     {
         LOG_INF("Factory Reset Triggered. Release button within %ums to cancel.", kFactoryResetTriggerTimeout);

         // Start timer for kFactoryResetCancelWindowTimeout to allow user to cancel, if required.
         sAppTask.StartTimer(kFactoryResetCancelWindowTimeout);
         sAppTask.mFunction = kFunction_FactoryReset;

         // Turn off all LEDs before starting blink to make sure blink is co-ordinated.
         sStatusLED.Set(false);
         sUnusedLED_1.Set(false);
         sUnusedLED.Set(false);

         sStatusLED.Blink(500);
         sUnusedLED.Blink(500);
         sUnusedLED_1.Blink(500);
     }
     else if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_FactoryReset)
     {
         // Actually trigger Factory Reset
         sAppTask.mFunction = kFunction_NoneSelected;
         ConfigurationMgr().InitiateFactoryReset();
     }
 }

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

     // To trigger software update: press the FUNCTION_BUTTON button briefly (< kFactoryResetTriggerTimeout)
     // To initiate factory reset: press the FUNCTION_BUTTON for kFactoryResetTriggerTimeout + kFactoryResetCancelWindowTimeout
     // All LEDs start blinking after kFactoryResetTriggerTimeout to signal factory reset has been initiated.
     // To cancel factory reset: release the FUNCTION_BUTTON once all LEDs start blinking within the
     // kFactoryResetCancelWindowTimeout
     if (aEvent->ButtonEvent.Action == kButtonPushEvent)
     {
         if (!sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_NoneSelected)
         {
             sAppTask.StartTimer(kFactoryResetTriggerTimeout);

             sAppTask.mFunction = kFunction_SoftwareUpdate;
         }
     }
     else
     {
         // If the button was released before factory reset got initiated, trigger a software update.
         if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_SoftwareUpdate)
         {
             sAppTask.CancelTimer();
             sAppTask.mFunction = kFunction_NoneSelected;

 #ifdef CONFIG_MCUMGR_SMP_BT
             GetDFUOverSMP().StartServer();
 #else
             LOG_INF("Software update is disabled");
 #endif
         }
         else if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_FactoryReset)
         {
             sUnusedLED.Set(false);
             sUnusedLED_1.Set(false);
             sAppTask.CancelTimer();
             sAppTask.mFunction = kFunction_NoneSelected;
             LOG_INF("Factory Reset has been Canceled");
         }
     }
 }

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

     if (AddTestCommissioning() != CHIP_NO_ERROR)
     {
         LOG_ERR("Failed to add test pairing");
     }

     if (!chip::DeviceLayer::ConnectivityMgr().IsThreadProvisioned())
     {
         StartDefaultThreadNetwork();
         LOG_INF("Device is not commissioned to a Thread network. Starting with the default configuration.");
     }
     else
     {
         LOG_INF("Device is commissioned to a Thread network.");
     }
 }

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

     // Don't allow on starting Matter service BLE advertising after Thread provisioning.
     if (ConnectivityMgr().IsThreadProvisioned())
     {
         LOG_INF("NFC Tag emulation and Matter service BLE advertising not started - device is commissioned to a Thread network.");
         return;
     }

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

     if (OpenBasicCommissioningWindow(chip::ResetFabrics::kNo) != CHIP_NO_ERROR)
     {
         LOG_ERR("OpenBasicCommissioningWindow() failed");
     }
 }

 #ifdef CONFIG_CHIP_NFC_COMMISSIONING
 void AppTask::ChipEventHandler(const ChipDeviceEvent * event, intptr_t /* arg */)
 {
     if (event->Type != DeviceEventType::kCHIPoBLEAdvertisingChange)
         return;

     if (event->CHIPoBLEAdvertisingChange.Result == kActivity_Started)
     {
         if (NFCMgr().IsTagEmulationStarted())
         {
             LOG_INF("NFC Tag emulation is already started");
         }
         else
         {
             ShareQRCodeOverNFC(chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE));
         }
     }
     else if (event->CHIPoBLEAdvertisingChange.Result == kActivity_Stopped)
     {
         NFCMgr().StopTagEmulation();
     }
 }
 #endif

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

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

 void AppTask::ActionInitiated(LightingManager::Action_t aAction, int32_t aActor)
 {
     if (aAction == LightingManager::ON_ACTION)
     {
         LOG_INF("Turn On Action has been initiated");
     }
     else if (aAction == LightingManager::OFF_ACTION)
     {
         LOG_INF("Turn Off Action has been initiated");
     }
     else if (aAction == LightingManager::LEVEL_ACTION)
     {
         LOG_INF("Level Action has been initiated");
     }
 }

 void AppTask::ActionCompleted(LightingManager::Action_t aAction, int32_t aActor)
 {
     if (aAction == LightingManager::ON_ACTION)
     {
         LOG_INF("Turn On Action has been completed");
     }
     else if (aAction == LightingManager::OFF_ACTION)
     {
         LOG_INF("Turn Off Action has been completed");
     }
     else if (aAction == LightingManager::LEVEL_ACTION)
     {
         LOG_INF("Level Action has been completed");
     }

     if (aActor == AppEvent::kEventType_Button)
     {
         sAppTask.UpdateClusterState();
     }
 }

 void AppTask::PostLightingActionRequest(LightingManager::Action_t aAction)
 {
     AppEvent event;
     event.Type                 = AppEvent::kEventType_Lighting;
     event.LightingEvent.Action = aAction;
     event.Handler              = LightingActionEventHandler;
     PostEvent(&event);
 }

 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.");
     }
 }

 void AppTask::UpdateClusterState()
 {
     uint8_t onoff = LightingMgr().IsTurnedOn();

     // write the new on/off value
     EmberAfStatus status = emberAfWriteAttribute(1, ZCL_ON_OFF_CLUSTER_ID, ZCL_ON_OFF_ATTRIBUTE_ID, CLUSTER_MASK_SERVER, &onoff,
                                                  ZCL_BOOLEAN_ATTRIBUTE_TYPE);
     if (status != EMBER_ZCL_STATUS_SUCCESS)
     {
         LOG_ERR("Updating on/off cluster failed: %x", status);
     }

     uint8_t level = LightingMgr().GetLevel();

     status = emberAfWriteAttribute(1, ZCL_LEVEL_CONTROL_CLUSTER_ID, ZCL_CURRENT_LEVEL_ATTRIBUTE_ID, CLUSTER_MASK_SERVER, &level,
                                    ZCL_INT8U_ATTRIBUTE_TYPE);

     if (status != EMBER_ZCL_STATUS_SUCCESS)
     {
         LOG_ERR("Updating level cluster failed: %x", status);
     }
 }
	/*
	*
	* Copyright (c) 2020 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 "LEDWidget.h"
	#include "LightingManager.h"
	#include "ThreadUtil.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>

	#include <platform/CHIPDeviceLayer.h>

	#include <lib/support/ErrorStr.h>
	#include <system/SystemClock.h>

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

	LOG_MODULE_DECLARE(app);

	namespace {

	constexpr int kFactoryResetTriggerTimeout = 3000;
	constexpr int kFactoryResetCancelWindowTimeout = 3000;
	constexpr int kAppEventQueueSize = 10;
	constexpr int kExampleVendorID = 0xabcd;
	constexpr uint8_t kButtonPushEvent = 1;
	constexpr uint8_t kButtonReleaseEvent = 0;

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

	LEDWidget sStatusLED;
	LEDWidget sUnusedLED;
	LEDWidget sUnusedLED_1;

	bool sIsThreadProvisioned = false;
	bool sIsThreadEnabled = false;
	bool sHaveBLEConnections = false;
	bool sHaveServiceConnectivity = false;

	} // namespace

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

	AppTask AppTask::sAppTask;

	int AppTask::Init()
	{
	// Initialize LEDs
	LEDWidget::InitGpio();

	sStatusLED.Init(SYSTEM_STATE_LED);
	sUnusedLED.Init(DK_LED3);
	sUnusedLED_1.Init(DK_LED4);

	// Initialize buttons
	int ret = dk_buttons_init(ButtonEventHandler);
	if (ret)
	{
	LOG_ERR("dk_buttons_init() failed");
	return ret;
	}

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

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

	ret = LightingMgr().Init(LIGHTING_PWM_DEVICE, LIGHTING_PWM_CHANNEL);
	if (ret != 0)
	return ret;

	LightingMgr().SetCallbacks(ActionInitiated, ActionCompleted);

	// Init ZCL Data Model and start server
	InitServer();

	// Initialize device attestation config
	SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
	ConfigurationMgr().LogDeviceConfig();
	PrintOnboardingCodes(chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE));

	#if defined(CONFIG_CHIP_NFC_COMMISSIONING)
	PlatformMgr().AddEventHandler(ChipEventHandler, 0);
	#endif

	return 0;
	}

	int AppTask::StartApp()
	{
	int ret = Init();

	if (ret)
	{
	LOG_ERR("AppTask.Init() failed");
	return ret;
	}

	AppEvent event = {};

	while (true)
	{
	ret = k_msgq_get(&sAppEventQueue, &event, K_MSEC(10));

	while (!ret)
	{
	DispatchEvent(&event);
	ret = k_msgq_get(&sAppEventQueue, &event, K_NO_WAIT);
	}

	// Collect connectivity and configuration state from the CHIP stack. Because the
	// CHIP event loop is being run in a separate task, the stack must be locked
	// while these values are queried. However we use a non-blocking lock request
	// (TryLockChipStack()) to avoid blocking other UI activities when the CHIP
	// task is busy (e.g. with a long crypto operation).

	if (PlatformMgr().TryLockChipStack())
	{
	sIsThreadProvisioned = ConnectivityMgr().IsThreadProvisioned();
	sIsThreadEnabled = ConnectivityMgr().IsThreadEnabled();
	sHaveBLEConnections = (ConnectivityMgr().NumBLEConnections() != 0);
	sHaveServiceConnectivity = ConnectivityMgr().HaveServiceConnectivity();
	PlatformMgr().UnlockChipStack();
	}

	// Update the status LED if factory reset has not been initiated.
	//
	// If system has "full connectivity", keep the LED On constantly.
	//
	// If thread and service provisioned, but not attached to the thread network yet OR no
	// connectivity to the service OR subscriptions are not fully established
	// THEN blink the LED Off for a short period of time.
	//
	// If the system has ble connection(s) uptill the stage above, THEN blink the LEDs at an even
	// rate of 100ms.
	//
	// Otherwise, blink the LED ON for a very short time.
	if (sAppTask.mFunction != kFunction_FactoryReset)
	{
	if (sHaveServiceConnectivity)
	{
	sStatusLED.Set(true);
	}
	else if (sIsThreadProvisioned && sIsThreadEnabled)
	{
	sStatusLED.Blink(950, 50);
	}
	else if (sHaveBLEConnections)
	{
	sStatusLED.Blink(100, 100);
	}
	else
	{
	sStatusLED.Blink(50, 950);
	}
	}

	sStatusLED.Animate();
	sUnusedLED.Animate();
	sUnusedLED_1.Animate();
	}
	}

	void AppTask::LightingActionEventHandler(AppEvent * aEvent)
	{
	LightingManager::Action_t action = LightingManager::INVALID_ACTION;
	int32_t actor = 0;

	if (aEvent->Type == AppEvent::kEventType_Lighting)
	{
	action = static_cast<LightingManager::Action_t>(aEvent->LightingEvent.Action);
	actor = aEvent->LightingEvent.Actor;
	}
	else if (aEvent->Type == AppEvent::kEventType_Button)
	{
	action = LightingMgr().IsTurnedOn() ? LightingManager::OFF_ACTION : LightingManager::ON_ACTION;
	actor = AppEvent::kEventType_Button;
	}

	if (action != LightingManager::INVALID_ACTION && !LightingMgr().InitiateAction(action, actor, 0, NULL))
	LOG_INF("Action is already in progress or active.");
	}

	void AppTask::ButtonEventHandler(uint32_t button_state, uint32_t has_changed)
	{
	AppEvent button_event;
	button_event.Type = AppEvent::kEventType_Button;

	if (LIGHTING_BUTTON_MASK & button_state & has_changed)
	{
	button_event.ButtonEvent.PinNo = LIGHTING_BUTTON;
	button_event.ButtonEvent.Action = kButtonPushEvent;
	button_event.Handler = LightingActionEventHandler;
	sAppTask.PostEvent(&button_event);
	}

	if (FUNCTION_BUTTON_MASK & has_changed)
	{
	button_event.ButtonEvent.PinNo = FUNCTION_BUTTON;
	button_event.ButtonEvent.Action = (FUNCTION_BUTTON_MASK & button_state) ? kButtonPushEvent : kButtonReleaseEvent;
	button_event.Handler = FunctionHandler;
	sAppTask.PostEvent(&button_event);
	}

	if (THREAD_START_BUTTON_MASK & button_state & has_changed)
	{
	button_event.ButtonEvent.PinNo = THREAD_START_BUTTON;
	button_event.ButtonEvent.Action = kButtonPushEvent;
	button_event.Handler = StartThreadHandler;
	sAppTask.PostEvent(&button_event);
	}

	if (BLE_ADVERTISEMENT_START_BUTTON_MASK & button_state & has_changed)
	{
	button_event.ButtonEvent.PinNo = BLE_ADVERTISEMENT_START_BUTTON;
	button_event.ButtonEvent.Action = kButtonPushEvent;
	button_event.Handler = StartBLEAdvertisementHandler;
	sAppTask.PostEvent(&button_event);
	}
	}

	void AppTask::TimerEventHandler(k_timer * timer)
	{
	AppEvent event;
	event.Type = AppEvent::kEventType_Timer;
	event.TimerEvent.Context = k_timer_user_data_get(timer);
	event.Handler = FunctionTimerEventHandler;
	sAppTask.PostEvent(&event);
	}

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

	// If we reached here, the button was held past kFactoryResetTriggerTimeout, initiate factory reset
	if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_SoftwareUpdate)
	{
	LOG_INF("Factory Reset Triggered. Release button within %ums to cancel.", kFactoryResetTriggerTimeout);

	// Start timer for kFactoryResetCancelWindowTimeout to allow user to cancel, if required.
	sAppTask.StartTimer(kFactoryResetCancelWindowTimeout);
	sAppTask.mFunction = kFunction_FactoryReset;

	// Turn off all LEDs before starting blink to make sure blink is co-ordinated.
	sStatusLED.Set(false);
	sUnusedLED_1.Set(false);
	sUnusedLED.Set(false);

	sStatusLED.Blink(500);
	sUnusedLED.Blink(500);
	sUnusedLED_1.Blink(500);
	}
	else if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_FactoryReset)
	{
	// Actually trigger Factory Reset
	sAppTask.mFunction = kFunction_NoneSelected;
	ConfigurationMgr().InitiateFactoryReset();
	}
	}

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

	// To trigger software update: press the FUNCTION_BUTTON button briefly (< kFactoryResetTriggerTimeout)
	// To initiate factory reset: press the FUNCTION_BUTTON for kFactoryResetTriggerTimeout + kFactoryResetCancelWindowTimeout
	// All LEDs start blinking after kFactoryResetTriggerTimeout to signal factory reset has been initiated.
	// To cancel factory reset: release the FUNCTION_BUTTON once all LEDs start blinking within the
	// kFactoryResetCancelWindowTimeout
	if (aEvent->ButtonEvent.Action == kButtonPushEvent)
	{
	if (!sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_NoneSelected)
	{
	sAppTask.StartTimer(kFactoryResetTriggerTimeout);

	sAppTask.mFunction = kFunction_SoftwareUpdate;
	}
	}
	else
	{
	// If the button was released before factory reset got initiated, trigger a software update.
	if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_SoftwareUpdate)
	{
	sAppTask.CancelTimer();
	sAppTask.mFunction = kFunction_NoneSelected;

	#ifdef CONFIG_MCUMGR_SMP_BT
	GetDFUOverSMP().StartServer();
	#else
	LOG_INF("Software update is disabled");
	#endif
	}
	else if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_FactoryReset)
	{
	sUnusedLED.Set(false);
	sUnusedLED_1.Set(false);
	sAppTask.CancelTimer();
	sAppTask.mFunction = kFunction_NoneSelected;
	LOG_INF("Factory Reset has been Canceled");
	}
	}
	}

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

	if (AddTestCommissioning() != CHIP_NO_ERROR)
	{
	LOG_ERR("Failed to add test pairing");
	}

	if (!chip::DeviceLayer::ConnectivityMgr().IsThreadProvisioned())
	{
	StartDefaultThreadNetwork();
	LOG_INF("Device is not commissioned to a Thread network. Starting with the default configuration.");
	}
	else
	{
	LOG_INF("Device is commissioned to a Thread network.");
	}
	}

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

	// Don't allow on starting Matter service BLE advertising after Thread provisioning.
	if (ConnectivityMgr().IsThreadProvisioned())
	{
	LOG_INF("NFC Tag emulation and Matter service BLE advertising not started - device is commissioned to a Thread network.");
	return;
	}

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

	if (OpenBasicCommissioningWindow(chip::ResetFabrics::kNo) != CHIP_NO_ERROR)
	{
	LOG_ERR("OpenBasicCommissioningWindow() failed");
	}
	}

	#ifdef CONFIG_CHIP_NFC_COMMISSIONING
	void AppTask::ChipEventHandler(const ChipDeviceEvent * event, intptr_t /* arg */)
	{
	if (event->Type != DeviceEventType::kCHIPoBLEAdvertisingChange)
	return;

	if (event->CHIPoBLEAdvertisingChange.Result == kActivity_Started)
	{
	if (NFCMgr().IsTagEmulationStarted())
	{
	LOG_INF("NFC Tag emulation is already started");
	}
	else
	{
	ShareQRCodeOverNFC(chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE));
	}
	}
	else if (event->CHIPoBLEAdvertisingChange.Result == kActivity_Stopped)
	{
	NFCMgr().StopTagEmulation();
	}
	}
	#endif

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

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

	void AppTask::ActionInitiated(LightingManager::Action_t aAction, int32_t aActor)
	{
	if (aAction == LightingManager::ON_ACTION)
	{
	LOG_INF("Turn On Action has been initiated");
	}
	else if (aAction == LightingManager::OFF_ACTION)
	{
	LOG_INF("Turn Off Action has been initiated");
	}
	else if (aAction == LightingManager::LEVEL_ACTION)
	{
	LOG_INF("Level Action has been initiated");
	}
	}

	void AppTask::ActionCompleted(LightingManager::Action_t aAction, int32_t aActor)
	{
	if (aAction == LightingManager::ON_ACTION)
	{
	LOG_INF("Turn On Action has been completed");
	}
	else if (aAction == LightingManager::OFF_ACTION)
	{
	LOG_INF("Turn Off Action has been completed");
	}
	else if (aAction == LightingManager::LEVEL_ACTION)
	{
	LOG_INF("Level Action has been completed");
	}

	if (aActor == AppEvent::kEventType_Button)
	{
	sAppTask.UpdateClusterState();
	}
	}

	void AppTask::PostLightingActionRequest(LightingManager::Action_t aAction)
	{
	AppEvent event;
	event.Type = AppEvent::kEventType_Lighting;
	event.LightingEvent.Action = aAction;
	event.Handler = LightingActionEventHandler;
	PostEvent(&event);
	}

	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.");
	}
	}

	void AppTask::UpdateClusterState()
	{
	uint8_t onoff = LightingMgr().IsTurnedOn();

	// write the new on/off value
	EmberAfStatus status = emberAfWriteAttribute(1, ZCL_ON_OFF_CLUSTER_ID, ZCL_ON_OFF_ATTRIBUTE_ID, CLUSTER_MASK_SERVER, &onoff,
	ZCL_BOOLEAN_ATTRIBUTE_TYPE);
	if (status != EMBER_ZCL_STATUS_SUCCESS)
	{
	LOG_ERR("Updating on/off cluster failed: %x", status);
	}

	uint8_t level = LightingMgr().GetLevel();

	status = emberAfWriteAttribute(1, ZCL_LEVEL_CONTROL_CLUSTER_ID, ZCL_CURRENT_LEVEL_ATTRIBUTE_ID, CLUSTER_MASK_SERVER, &level,
	ZCL_INT8U_ATTRIBUTE_TYPE);

	if (status != EMBER_ZCL_STATUS_SUCCESS)
	{
	LOG_ERR("Updating level cluster failed: %x", status);
	}
	}