#include "WiFi.h"

WiFiClient client;

#include "DHTesp.h"

const int DHT_PIN = 15;

DHTesp dhtSensor;

String thingSpeakAddress = "api.thingspeak.com";
String writeAPIKey;
String tsfield1Name;
String request_string;


void setup ()
{
  Serial.begin(9600);
  WiFi.disconnect();
  WiFi.begin("Wokwi-GUEST", "");
  while ((!(WiFi.status() == WL_CONNECTED))) {
      delay(300);
      Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected"); 
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}


void loop()
{
  delay(2000);
  TempAndHumidity data = dhtSensor.getTempAndHumidity();

  float t = data.temperature;
  float h = data.humidity;

  kirim_thingspeak(t, h);

  // jika salah satu dari nilai temperatur atau humidity kosong/nan
  // maka akan di print
  if (isnan(h) || isnan(t) ) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
}

void kirim_thingspeak(float suhu, float hum) {
  if (client.connect("api.thingspeak.com",80 )) {
    request_string = "/update?";
    request_string += "key=";
    request_string += "GJPOLXBIGBKFJAJO";
    request_string += "&";
    request_string += "field1";
    request_string += "RNZU9GY6754ZHZBO";
    request_string += suhu;
    request_string += "&";
    request_string += "field1";
    request_string += "=";
    request_string += suhu;
    request_string += "&";
    request_string += "field2";
    request_string += "K58K1BC6AMXWIFYW";
    request_string += hum;
    request_string += "&";
    request_string += "field2";
    request_string += "=";
    request_string += hum;
    
    Serial.println(String("GET ") + request_string + "HTTP/1.1\r\n" +
                  "Host: " + thingSpeakAddress + "\r\n" +
                  "Connection: close\r\n\r\n");

   client.print(String("GET ") + request_string + " HTTP/1.1\r\n" + 
                  "Host: " + thingSpeakAddress + "\r\n" +
                  "Connection: close\r\n\r\n");
  unsigned long timeout = millis();
  while (client.available() == 0) {
    if (millis() - timeout > 5000){
      Serial.println(">>> Client Timeout !");
      client.stop();
      return;
    }
  }
  }
}