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

// Define GPIO pins
#define LED1_GPIO 2  // LED1 on GPIO 2
#define LED2_GPIO 4  // LED2 on GPIO 4
#define BUTTON_GPIO 18 // Button on GPIO 18

// Function for LED state
void toggleLED(int gpioPin) {
int current_level = gpio_get_level(gpioPin);
//current level == 1 then turn and hold LED
gpio_set_level(gpioPin, !current_level); // GPIO pin state
}

// Function to blink LED 
void blinkLED(int gpioPin, int times) {
for (int i = 0; i < times; i++) {
gpio_set_level(gpioPin, 1); // Turn on LED
vTaskDelay(pdMS_TO_TICKS(500)); 
gpio_set_level(gpioPin, 0); // 
vTaskDelay(pdMS_TO_TICKS(500)); 
    }
}

void app_main(void) {

// Initialize GPIO LED1 and LED2 as outputs
gpio_set_direction(LED1_GPIO, GPIO_MODE_OUTPUT);
gpio_set_direction(LED2_GPIO, GPIO_MODE_OUTPUT);

    

while (1) {

if (gpio_get_level(BUTTON_GPIO) == 0) {
toggleLED(LED1_GPIO);

// Blink LED2 (GPIO 4) 3 times
blinkLED(LED2_GPIO, 3);
            
vTaskDelay(pdMS_TO_TICKS(300)); 
}
   
vTaskDelay(pdMS_TO_TICKS(50)); 
    }
}