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

//Variable to Read the pin state
int readPinStateWithDebounce(int pin);

// Pin definitions
#define BUTTON_PIN 4  // Button connected to GPIO 4
uint8_t led_pins[] = {38, 37, 36, 35, 0, 45, 48, 47};

void app_main() {
  // setting the GPIO to input mode
    gpio_set_direction(BUTTON_PIN, GPIO_MODE_INPUT);

//looping the LEDS and setting the LEDS to output
    for (int i = 0; i < 8; i++) {
        gpio_set_direction(led_pins[i], GPIO_MODE_OUTPUT);
    }

    while (1) {
      //setting the button state to the debounce state
        int btnState = readPinStateWithDebounce(BUTTON_PIN);

// if button state is 1 then loop LED pins
        if (btnState == 1) {
            for (int i = 0; i < 8; i++) {
                gpio_set_level(led_pins[i], 0);
            }
        } else {
            for (int i = 0; i < 8; i++) {
                gpio_set_level(led_pins[i], 1);
            }
        }

        vTaskDelay(pdMS_TO_TICKS(200));  // Small delay to prevent excessive looping
    }
}

/* Function Name    - readPinStateWithDebounce
 * Description      - reads pin with a debounce
 * Return type      - int
 * Parameters       -integer -pin 
 */
 //reading the pin state
int readPinStateWithDebounce(int pin) {
    
    //button state is the same as the pin Level
int btnstate = gpio_get_level(pin);

//when button is not presses the display state which is 1 
if (btnstate == 0) {
vTaskDelay(pdMS_TO_TICKS(50));
int btnState = gpio_get_level(pin);
printf("Button state 1 = 0 \n");
// if presses state pin = 0
  if (btnstate == 0) {
  printf("Button state 2 = 0 \n");
  return 0;
  }
return 1;
}

  else{
printf("Button not pressed. ");

printf("Button state = 1 \n");

return 1;

}
}