/* --------------------------------------------------------------
   Application: 01 - Rev1
   Release Type: Sub - Optimal Baseline Code 
   Class: Real Time Systems - Su 2025
   AI Use: Commented inline
---------------------------------------------------------------*/
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"

#define LED_PIN GPIO_NUM_2
#define LED_OFF 0
#define LED_ON 1
#define SHORT_DURATION 250
#define LONG_DELAY 10000
#define TINY_DURATION 50

// Global LED state variable
int ledState = LED_OFF;

void blink_task(void *pvParameters) {
  while (1) {
    ledState = !(ledState);          // Toggle LED state
    gpio_set_level(LED_PIN, ledState);   // Set GPIO output
    vTaskDelay(pdMS_TO_TICKS(SHORT_DURATION));
    // vTaskDelay(pdMS_TO_TICKS(TINY_DURATION));
  }
}

void print_task(void *pvParameters) {
  while (1) {
    printf("System alive and transmitting, time = %lu ms, LED = %s\n",
           (unsigned long)(xTaskGetTickCount() * portTICK_PERIOD_MS),
           ledState ? "ON" : "OFF");
    // vTaskDelay(pdMS_TO_TICKS(LONG_DELAY));
    // vTaskDelay(pdMS_TO_TICKS(TINY_DURATION));
  }
}

void app_main() {
  gpio_reset_pin(LED_PIN);
  gpio_set_direction(LED_PIN, GPIO_MODE_OUTPUT);
  // Initially start with a LED_OFF 
  gpio_set_level(LED_PIN, ledState); // Ensure it starts in the OFF state

  xTaskCreate(blink_task, "BlinkTask", 2048, NULL, 1, NULL);
  xTaskCreate(print_task, "PrintTask", 2048, NULL, 1, NULL);

}