#include <WiFi.h>

#include "DHTesp.h"

WiFiClient client;

DHTesp dhtSensor;

String thingSpeakAddress = "G1BWQR5K11N7K0LV";
String tsfield1Name;
String request_string;
String apiKey = "G1BWQR5K11N7K0LV";
const int DHT_PIN = 15;
const int LDR_PIN = 36;
const float GAMMA = 0.7; 
const float RL10 = 50;


void setup()
{
  Serial.begin(9600);

  WiFi.disconnect();
  delay(3000);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  Serial.println("START");
  WiFi.begin("Wokwi-GUEST", "");
  while ((!(WiFi.status() == WL_CONNECTED))) {
    delay(300);
    Serial.print("..");

  }
  Serial.println("Connected");
  Serial.println("Your IP is");
  Serial.println((WiFi.localIP()));

}


void kirimThingspeak(){
  if (client.connect("api.thingspeak.com",80)) {
      Serial.println("I\'m Connected To The service");
      TempAndHumidity  data = dhtSensor.getTempAndHumidity();
      float LDR_val = analogRead(LDR_PIN);
      float voltage = LDR_val / 1024. * 5;
      float resistance = 2000 * voltage / (1 - voltage / 5);
      float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));

      request_string = thingSpeakAddress;
      request_string += "&field1=";
      request_string += data.temperature;
      request_string += "&field2=";
      request_string += data.humidity;
      request_string += "&field3=";
      request_string += lux;
    
      client.print("POST /update HTTP/1.1\n");
      client.print("Host: api.thingspeak.com\n");
      client.print("Connection: close\n");
      client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
      client.print("Content-Type: application/x-www-form-urlencoded\n");
      client.print("Content-Length: ");
      client.print(request_string.length());
      client.print("\n\n");
      client.print(request_string);

    } else {
      Serial.println("Not Connected To The service");

    }
}

void loop()
{
    kirimThingspeak();
    delay(10000);

}