#include <ArduinoJson.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <Timers.h>

const char *ssid = "DataJugling";
const char *password = "jugle123";
const char *url = "http://dataserver.local/";

Timer requestTimer;

DynamicJsonDocument doc;
HTTPClient http;

void setup() {
  Serial.begin(115200);
  requestTimer.begin(500);

  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) delay(500);
  digitalWrite(LED_BUILTIN, HIGH);

  //Generating URL from server IP which is client gateway.
  //And URL have to look fine for HTTPClient
  //url = "http://" + WiFi.gatewayIP().toString() + "/";
  //url = "http://dataserver.local/";
}

void loop() {
  if(requestTimer.available()) {
    http.begin(url);
    int httpCode = http.GET();

    if (httpCode > 0) {
      String data = http.getString();

      deserializeJson(doc, data);
      JsonObject root = doc.as<JsonObject>();

      Serial.print("JSON decode: ");
      Serial.println(root["state"].as<bool>());
    } else {
      Serial.printf("[HTTP] Error: %s\n", http.errorToString(httpCode).c_str());
    }
    http.end();
    requestTimer.restart();
  }
}