/*
 * WakeupFormPEKKey: Use AXP202 interrupt pin to wake up T-Watch
 * Copyright 2020 Lewis he
 */

#include "config.h"

TTGOClass *watch;
TFT_eSPI *tft;
AXP20X_Class *power;
bool irq = false;

void setup()
{
    // Get TTGOClass instance
    watch = TTGOClass::getWatch();

    // Initialize the hardware, the BMA423 sensor has been initialized internally
    watch->begin();

    // Turn on the backlight
    watch->openBL();

    //Receive objects for easy writing
    tft = watch->tft;
    power = watch->power;

    tft->setTextColor(TFT_GREEN);

    pinMode(AXP202_INT, INPUT_PULLUP);
    attachInterrupt(AXP202_INT, [] {
        irq = true;
    }, FALLING);


    // Must be enabled first, and then clear the interrupt status,
    // otherwise abnormal
    power->enableIRQ(AXP202_PEK_SHORTPRESS_IRQ,
                     true);

    //  Clear interrupt status
    power->clearIRQ();

    tft->println("Wait for the PEKKey interrupt to come...");

    // Wait for the power button to be pressed
    while (!irq) {
        delay(1000);
    }
    /*
    After the AXP202 interrupt is triggered, the interrupt status must be cleared,
    * otherwise the next interrupt will not be triggered
    */
    power->clearIRQ();

    for (int i = 5; i > 0; i--) {
        tft->print("Go to sleep after ");
        tft->print(i);
        tft->println(" seconds");
        delay(1000);
    }
    tft->println("Sleep now ...");
    delay(1000);


    // Set screen and touch to sleep mode
    watch->displaySleep();

    /*
    When using T - Watch2020V1, you can directly call power->powerOff(),
    if you use the 2019 version of TWatch, choose to turn off
    according to the power you need to turn off
    */
#ifdef LILYGO_WATCH_2020_V1
    watch->powerOff();
    // LDO2 is used to power the display, and LDO2 can be turned off if needed
    // power->setPowerOutPut(AXP202_LDO2, false);
#else
    power->setPowerOutPut(AXP202_LDO3, false);
    power->setPowerOutPut(AXP202_LDO4, false);
    power->setPowerOutPut(AXP202_LDO2, false);
    // The following power channels are not used
    power->setPowerOutPut(AXP202_EXTEN, false);
    power->setPowerOutPut(AXP202_DCDC2, false);
#endif

    // Use ext0 for external wakeup
    // esp_sleep_enable_ext0_wakeup((gpio_num_t)AXP202_INT, LOW);

    // Use ext1 for external wakeup
    esp_sleep_enable_ext1_wakeup(GPIO_SEL_35, ESP_EXT1_WAKEUP_ALL_LOW);

    esp_deep_sleep_start();
}

void loop()
{
}