#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "sdkconfig.h"
#include <inttypes.h>

#define LED 2
#define Push_Button 4

bool gpio_value = false;

static void IRAM_ATTR gpio_isr_handler(void* arg)
{ 
  gpio_set_level(LED, gpio_value);    // Set the level of the LED pin
  gpio_value = !gpio_value;          // Reset the level of the LED Pin

}

void app_main(void)
{
  /* Reset the pin */
  gpio_reset_pin(LED);                                    // Reset the LED Pin
  gpio_reset_pin(Push_Button);                           // Reset the PushButton Pin

  /* Set the GPIOs to Output mode */
  gpio_set_direction(LED, GPIO_MODE_OUTPUT);            // Set the GPIO MODE of the LED as ouyput
  gpio_set_direction(Push_Button, GPIO_MODE_INPUT);     // Set the GPIO Mode of the Push button as input

  /* Enable Pullup for Input Pin */
  gpio_pullup_en(Push_Button);                        // Enable PullUp

  /* Disable pulldown for Input Pin */
  gpio_pulldown_dis(Push_Button);

  /* Configure Raising Edge detection Interrupt for Input Pin */
  gpio_set_intr_type(Push_Button, GPIO_INTR_POSEDGE);        // Set the interupt on the GPIO as positive edge or rising edge

  /* install gpio isr service to default values */
  gpio_install_isr_service(0);

  /* Attach the ISR to the GPIO interrupt */
  gpio_isr_handler_add(Push_Button, gpio_isr_handler, NULL);

  /* Enable the Interrupt */
  // gpio_intr_enable(Push_Button);


  while (1)
  {
    if (gpio_get_level(LED)==1)
    {
      printf("ON \n");
    }
else
    {
      printf("OFF \n");
    }
    vTaskDelay(100 / portTICK_PERIOD_MS);
  }
}