#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

#define BUTTON_PIN 15

// Declare a TaskHandle_t to manage the task state
TaskHandle_t TaskHandle_0;

void Core0Task(void* pvParameters) {
  // This task will run on core 0 and do nothing but delay itself.
  for (;;) {
    Serial.print("Task running on core ");
    Serial.println(xPortGetCoreID());
    delay(500); // Task action goes here.
  }
}

void setup() {
  // Initialize the button pin as an input.
  pinMode(BUTTON_PIN, INPUT_PULLUP);

  // Print the core number.
  Serial.begin(115200);
  while(!Serial);
  Serial.print("Setup running on core ");
  Serial.println(xPortGetCoreID());

  // Create a suspended task on core 0
  xTaskCreatePinnedToCore(
      Core0Task, /* Task function. */
      "Core0Task", /* name of task. */
      10000, /* Stack size of task */
      NULL, /* parameter of the task */
      1, /* priority of the task */
      &TaskHandle_0, /* Task handle to keep track of created task */
      0); /* pin task to core 0 */

  vTaskSuspend(TaskHandle_0); // Start the task suspended
}

void loop() {
  // Check for button press
  if (digitalRead(BUTTON_PIN) == LOW) {
    // Invert the state of the task on core 0
    if (eTaskGetState(TaskHandle_0) == eSuspended) {
      Serial.println("Resumed");
      vTaskResume(TaskHandle_0);
    } else {
      Serial.println("Suspended");
      vTaskSuspend(TaskHandle_0);
    }
    
    // Delay to debounce the button
    delay(200);
  }
}