#include <DHT.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <Arduino_JSON.h>

#define led 2
#define DHTPIN 15     
#define DHTTYPE DHT22
#define PIRPIN 13  

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

String serverName = "https://api.thingspeak.com/update?api_key=N068SN765UGJ45OR&field1=";
String serverName2 = "https://api.thingspeak.com/channels/2861278/feeds/last.json?api_key=FCARSJ9DWTR7CJXP";

DHT dht(DHTPIN, DHTTYPE);
int motionDetected;

void setup() {
  Serial.begin(9600);
  pinMode(led, OUTPUT);
  pinMode(PIRPIN, INPUT);  
  dht.begin();

  WiFi.begin(ssid, password);
  while(WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.println();
  Serial.print("WiFi connected: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  byte datalampu;
  float temperature, humidity;
  String mybuff;

  // Baca sensor DHT22
  temperature = dht.readTemperature();
  humidity = dht.readHumidity();
  motionDetected = digitalRead(PIRPIN);

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("%  Temperature: "));
  Serial.print(temperature);
  Serial.println(F("°C "));
  Serial.print("Gerakan :");
  Serial.println(motionDetected);

  // Kirim ke ThingSpeak
  if(WiFi.status() == WL_CONNECTED)
  {
    HTTPClient http;
    String serverPath = serverName + String(temperature) + "&field2=" + String(humidity) + "&field4=" + String(motionDetected);
    http.begin(serverPath);
    int httpResponseCode = http.GET();
    if (httpResponseCode == 200) 
    {
      Serial.println("HTTP Response code: " + String(httpResponseCode));
    }
    http.end();
  }
  else
  {
    Serial.println("WiFi Disconnected");
  }

  delay(5000);

  // Ambil data terakhir dari ThingSpeak
  if(WiFi.status() == WL_CONNECTED)
  {
    HTTPClient http;
    http.begin(serverName2);
    int httpResponseCode = http.GET();
    if (httpResponseCode == 200)
    {
      String payload = http.getString();
      JSONVar myObject = JSON.parse(payload);
      if (JSON.typeof(myObject) == "undefined")
      {
        Serial.println("Parsing error bro!");
      }
      else
      {
        JSONVar mykeys = myObject.keys();
        mybuff = JSON.stringify(myObject[mykeys[3]]);
        Serial.print("ini valuenya: ");
        Serial.println(mybuff);
        datalampu = mybuff.length();      
        mybuff.remove(datalampu - 1);
        mybuff.remove(0, 1);
        Serial.println(mybuff);
        datalampu = mybuff.toInt();
        Serial.println(datalampu);

        if(datalampu == 50)
        {
          digitalWrite(led, HIGH);
        }
        else if(datalampu == 100)
        {
          digitalWrite(led, LOW);
        }
          if (motionDetected == HIGH) 
          {
            Serial.println("Gerakan terdeteksi oleh sensor PIR!");
            digitalWrite(led, HIGH); 
            } else 
            {
             Serial.println("Tidak ada gerakan.");
             }
      }
    }
    Serial.println(httpResponseCode);
    http.end();
  }
  else
  {
    Serial.println("WiFi Disconnected");
  }
}