#include <Arduino.h>
#include <HTTPClient.h>
#include <WiFi.h>
#include <freertos/task.h>

const char* wifi_ssid = "ssid";    
const char* wifi_password = "123456789";   // WiFi password
const char* wifi_hostname = "esp32";

bool wifiIsConnected(void){
  return WiFi.status() == WL_CONNECTED;
}

int numberReq = 0;
bool taskRun = false;
void dummyTask(void *pvParameters){
  
  HTTPClient http;
  http.setReuse(false);
  http.begin("10.42.0.1", 5000, "/api/test");
  
  Serial.print("After begin Heap Size: ");
  Serial.print(ESP.getHeapSize());
  Serial.print(", free: ");
  Serial.println(ESP.getFreeHeap());
  
  int code = http.GET();
  String payload = http.getString();
  numberReq ++;
  Serial.print("Number of requests: ");
  Serial.print(numberReq);
  Serial.print("   -------------------------, code ");
  Serial.println(code);

  Serial.print("After get Heap Size: ");
  Serial.print(ESP.getHeapSize());
  Serial.print(", free: ");
  Serial.println(ESP.getFreeHeap());

  http.end();

  Serial.print("After end Heap Size: ");
  Serial.print(ESP.getHeapSize());
  Serial.print(", free: ");
  Serial.println(ESP.getFreeHeap());

  taskRun = false;
  vTaskDelete(NULL); // Delete this task
}

void setup() { 
  TickType_t xLastWakeTime = xTaskGetTickCount();
    
  // Init serial
  Serial.begin(115200);
  vTaskDelayUntil(&xLastWakeTime, pdMS_TO_TICKS(200));

  // Configure and initialize WiFi
  WiFi.disconnect(true, true); // Deletes old config 
  vTaskDelayUntil(&xLastWakeTime, pdMS_TO_TICKS(200));
  WiFi.mode(WIFI_STA); // Station mode, connect to AP
  WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE); // Use default params 
  WiFi.setAutoConnect(true);
  WiFi.begin(wifi_ssid, wifi_password); // Begin searching for wifi network
  WiFi.setHostname(wifi_hostname); 

  while(!wifiIsConnected()){
    vTaskDelayUntil(&xLastWakeTime, pdMS_TO_TICKS(200));
  }
  Serial.println("------- WiFi Connected");
}

void loop() {
  TickType_t xLastWakeTime = xTaskGetTickCount();
  vTaskDelayUntil(&xLastWakeTime, pdMS_TO_TICKS(200));

  Serial.print("Initial Heap Size: ");
  Serial.print(ESP.getHeapSize());
  Serial.print(", free: ");
  Serial.println(ESP.getFreeHeap());

  if(!taskRun){
    taskRun = true;
    Serial.println("Created Task");
    xTaskCreatePinnedToCore(
      dummyTask,   /* Task Function */
      "dummyTask", /* Task Name. */
      7500,       /* Stack Size */
      NULL,        /* Task Param */
      0,           /* Task Priority */
      NULL, /* Task Handle*/
      1 /* Core 0-1*/
    ); 
    Serial.print("After create task: ");
    Serial.print(ESP.getHeapSize());
    Serial.print(", free: ");
    Serial.println(ESP.getFreeHeap());
  }
}