/*
 *
 *    Copyright (c) 2023 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.
 */

/**********************************************************
 * Includes
 *********************************************************/

#include "AppTask.h"
#include "AppConfig.h"
#include "AppEvent.h"

#include "LEDWidget.h"

#ifdef DISPLAY_ENABLED
#include "lcd.h"
#ifdef QR_CODE_ENABLED
#include "qrcodegen.h"
#endif // QR_CODE_ENABLED
#endif // DISPLAY_ENABLED

#include <app-common/zap-generated/attributes/Accessors.h>
#include <app-common/zap-generated/ids/Clusters.h>
#include <app/server/OnboardingCodesUtil.h>
#include <app/server/Server.h>
#include <app/util/attribute-storage.h>
#include <assert.h>
#include <lib/support/CodeUtils.h>
#include <platform/CHIPDeviceLayer.h>
#include <platform/silabs/platformAbstraction/SilabsPlatform.h>
#include <setup_payload/QRCodeSetupPayloadGenerator.h>
#include <setup_payload/SetupPayload.h>

/**********************************************************
 * Defines and Constants
 *********************************************************/

#define SYSTEM_STATE_LED &sl_led_led0

#define APP_FUNCTION_BUTTON 0
#define APP_USER_ACTION 1

using namespace chip;
using namespace chip::app;
using namespace ::chip::DeviceLayer;
using namespace ::chip::DeviceLayer::Silabs;

using namespace chip::TLV;
using namespace ::chip::DeviceLayer;

/**********************************************************
 * AppTask Definitions
 *********************************************************/

AppTask AppTask::sAppTask;

CHIP_ERROR AppTask::Init()
{
    CHIP_ERROR err = CHIP_NO_ERROR;
    chip::DeviceLayer::Silabs::GetPlatform().SetButtonsCb(AppTask::ButtonEventHandler);

#ifdef DISPLAY_ENABLED
    GetLCD().Init((uint8_t *) "LIT ICD");
#endif

    err = BaseApplication::Init();
    if (err != CHIP_NO_ERROR)
    {
        SILABS_LOG("BaseApplication::Init() failed");
        appError(err);
    }

    return err;
}

CHIP_ERROR AppTask::StartAppTask()
{
    return BaseApplication::StartAppTask(AppTaskMain);
}

void AppTask::AppTaskMain(void * pvParameter)
{
    AppEvent event;
    osMessageQueueId_t sAppEventQueue = *(static_cast<osMessageQueueId_t *>(pvParameter));

    CHIP_ERROR err = sAppTask.Init();
    if (err != CHIP_NO_ERROR)
    {
        SILABS_LOG("AppTask.Init() failed");
        appError(err);
    }

    chip::Server::GetInstance().GetICDManager().RegisterObserver(&sAppTask);

#if !(defined(CHIP_CONFIG_ENABLE_ICD_SERVER) && CHIP_CONFIG_ENABLE_ICD_SERVER)
    sAppTask.StartStatusLEDTimer();
#endif

    SILABS_LOG("App Task started");
    while (true)
    {
        osStatus_t eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, osWaitForever);
        while (eventReceived == osOK)
        {
            sAppTask.DispatchEvent(&event);
            eventReceived = osMessageQueueGet(sAppEventQueue, &event, NULL, 0);
        }
    }
}

void AppTask::ApplicationEventHandler(AppEvent * aEvent)
{
    VerifyOrReturn(aEvent->Type == AppEvent::kEventType_Button);
    VerifyOrReturn(aEvent->ButtonEvent.Action == static_cast<uint8_t>(SilabsPlatform::ButtonAction::ButtonPressed));

    // Simple Application logic that toggles the BoleanState StateValue attribute.
    // DO NOT COPY for product logic. LIT ICD app is a test app with very simple application logic to enable testing.
    // The goal of the app is just to enable testing of LIT ICD features without impacting product sample apps.
    PlatformMgr().ScheduleWork([](intptr_t) {
        bool state = true;

        Protocols::InteractionModel::Status status = chip::app::Clusters::BooleanState::Attributes::StateValue::Get(1, &state);
        if (status != Protocols::InteractionModel::Status::Success)
        {
            // Failed to read StateValue. Default to true (open state)
            state = true;
            ChipLogError(NotSpecified, "ERR: reading boolean status value %x", to_underlying(status));
        }

        status = chip::app::Clusters::BooleanState::Attributes::StateValue::Set(1, !state);
        if (status != Protocols::InteractionModel::Status::Success)
        {
            ChipLogError(NotSpecified, "ERR: updating boolean status value %x", to_underlying(status));
        }
    });
}

void AppTask::ButtonEventHandler(uint8_t button, uint8_t btnAction)
{
    AppEvent button_event           = {};
    button_event.Type               = AppEvent::kEventType_Button;
    button_event.ButtonEvent.Action = btnAction;

    if (button == APP_USER_ACTION)
    {
        button_event.Handler = ApplicationEventHandler;
        sAppTask.PostEvent(&button_event);
    }
    else if (button == APP_FUNCTION_BUTTON)
    {
        button_event.Handler = BaseApplication::ButtonHandler;
        sAppTask.PostEvent(&button_event);
    }
}

// DO NOT COPY for product logic. LIT ICD app is a test app with very simple application logic to enable testing.
void AppTask::OnEnterActiveMode()
{
#ifdef DISPLAY_ENABLED
    sAppTask.GetLCD().WriteDemoUI(true);
#endif
}

// DO NOT COPY for product logic. LIT ICD app is a test app with very simple application logic to enable testing.
void AppTask::OnEnterIdleMode()
{
#ifdef DISPLAY_ENABLED
    sAppTask.GetLCD().WriteDemoUI(false);
#endif
}