#include<WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>

const char* ssid = "Wokwi-GUEST";
const char* pass = "";

#define LED_PIN 13

const String url = "https://dvtask2-0484385b2670.herokuapp.com";
String payload = "";

void setup(){
  Serial.begin(115200);
  WiFi.begin(ssid, pass);
  pinMode(13, OUTPUT);
  Serial.print("Connecting to WiFi...");
  while(WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println();
  }
  Serial.print("Ok! IP = ");
  Serial.println(WiFi.localIP());
  Serial.print("Fetching "+ url +"...");
  Serial.println();
}

void loop(){
  HTTPClient http;
  http.begin(url);
  int httpResponCode = http.GET();
  if(httpResponCode > 0){
    Serial.print("HTTP ");
    Serial.println(httpResponCode);
    payload = http.getString();
    Serial.println();
    Serial.println(payload);
    DynamicJsonDocument doc(1024);
    deserializeJson(doc, payload);
    const char* command = doc["command"];
    if (strcasecmp(command, "Forward") == 0){
      digitalWrite(LED_PIN, HIGH);
    } else if (strcasecmp(command, "Left") == 0){
      digitalWrite(LED_PIN, HIGH);
    } else if (strcasecmp(command, "Backword") == 0){
      digitalWrite(LED_PIN, HIGH);
    } else if (strcasecmp(command, "Right") == 0){
      digitalWrite(LED_PIN, HIGH);
    } else {
      digitalWrite(LED_PIN, LOW);
    }
  }else{
    Serial.print("Error code: ");
    Serial.println(httpResponCode);
  }
}