#include <ThingSpeak.h>
#include <WiFi.h>
#include <DHTesp.h>

const char * SSID = "Wokwi-GUEST";
const char * PASS = "";
WiFiClient  client;

DHTesp dhtSensor;
const int DHT_PIN = 15;

int lampu1 = 14;
int lampu2 = 4;

int trigPin = 13; // Trigger Ultrasonic
int echoPin = 2; // Echo Ultrasonic
int buzzerPin = 5;


unsigned long ChannelNumber =  1976271;
const char * ReadAPIKey = "15QTT5ZFMDVKN33P";
const char * WriteAPIKey = "HVJDCU0P3ID12XVG";
unsigned long FieldNumber1 = 1;
unsigned long FieldNumber2 = 2;
unsigned long FieldNumber3 = 3;
unsigned long FieldNumber4 = 4;
unsigned long FieldNumber5 = 5;
unsigned long FieldNumber6 = 6;

float readDistanceCM() {
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  int duration = pulseIn(echoPin, HIGH);
  float durasi = duration * 0.034 / 2;
  return durasi;
}


void setup() {

  pinMode(lampu1, OUTPUT);
  pinMode(lampu2, OUTPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  Serial.begin(115200);
  Serial.println();

  WiFi.begin(SSID, PASS);
  Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.println();
  Serial.print("Connected, IP address: ");
  Serial.println(WiFi.localIP());
  ThingSpeak.begin(client);
}

void loop() {
  int A = ThingSpeak.readLongField(ChannelNumber, FieldNumber1, ReadAPIKey);
  int B = ThingSpeak.readLongField(ChannelNumber, FieldNumber2, ReadAPIKey);
  int Buzzer = ThingSpeak.readLongField(ChannelNumber, FieldNumber6, ReadAPIKey);
  int distance = ThingSpeak.writeField(ChannelNumber, FieldNumber5, readDistanceCM(), WriteAPIKey);

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  float sensorTemp = data.temperature;
  float sensorHumidity = data.humidity;
  int temp = ThingSpeak.writeField(ChannelNumber, FieldNumber3, sensorTemp, WriteAPIKey);
  int humidity = ThingSpeak.writeField(ChannelNumber, FieldNumber4, sensorHumidity, WriteAPIKey);

  readDistanceCM();

  Serial.println("Temp: " + String(sensorTemp, 2) + "°C");
  Serial.println("Humidity: " + String(sensorHumidity, 1) + "%");
  Serial.println(readDistanceCM());


  if (Buzzer == 1) {
    tone(buzzerPin, 2000);
  }
  else if (Buzzer == 0) {
    noTone(buzzerPin);
  }

  if (temp == 200 && humidity == 200) {
    Serial.println("Channel update successful.");
  }
  else {
    Serial.println("Problem updating channel. HTTP error code " + String(temp));
  }

  // Menghidupkan dan mematikan lampu1
  if (A == 1) {
    Serial.println("lampu1 Nyala");
    digitalWrite(lampu1, HIGH);

  } else if (A == 0) {
    Serial.println("lampu1 Mati");
    digitalWrite(lampu1, LOW);
  }

  // Menghidupkan dan mematikan lampu2
  if (B == 1) {
    Serial.println("lampu2 Nyala");
    digitalWrite(lampu2, HIGH);

  } else if (B == 0) {
    Serial.println("lampu2 Mati");
    digitalWrite(lampu2, LOW);
  }
  delay(100);
}