//#define BLYNK_TEMPLATE_ID "TMPLxcfn51g5"
//#define BLYNK_DEVICE_NAME "DHT22 IoT4 7"
//#define BLYNK_AUTH_TOKEN "FbBef1Vmx70Byq8nMFfLTRoGtNlEsgf0"

#define PIN_LDR 34
#define PIN_LED 25
#define BLYNK_TEMPLATE_ID "TMPLZ7zwlBlj"
#define BLYNK_DEVICE_NAME "DHT22"
#define BLYNK_AUTH_TOKEN "M29LJObIDdB_LMXKVHabifs1WYp38c3x"


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"

const int DHT_PIN = 15;
const float GAMMA = 0.7;
const float RL10 = 50;

DHTesp dhtSensor;

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

void alertTemp(float temperature){
  if(temperature > 50){
    Serial.println("Suhu Tinggi");
    Blynk.virtualWrite(V4, "Suhu Tinggi"); 
  } else if (temperature < 5){
    Serial.println("Suhu Rendah");
    Blynk.virtualWrite(V4, "Suhu Rendah"); 
  } else {
    Serial.println("Suhu Normal");
    Blynk.virtualWrite(V4, "Suhu Normal");
  }
}

void alertHumid(float humidity){
  if(humidity > 90){
    Serial.println("RH Tinggi");
    Blynk.virtualWrite(V3, "RH Tinggi"); 
  } else if (humidity < 20){
    Serial.println("RH Rendah");
    Blynk.virtualWrite(V3, "RH Rendah"); 
  } else {
    Serial.println("RH Normal");
    Blynk.virtualWrite(V3, "RH Normal");
  }
}

void alertLux(float lux){
  if(lux >= 50){
    Serial.println("Terang");
    digitalWrite(PIN_LED, LOW);
    Blynk.virtualWrite(V5, "Terang");
    Blynk.virtualWrite(V1, 0);
  } else {
    Serial.println("Gelap");
    digitalWrite(PIN_LED, HIGH);
    Blynk.virtualWrite(V5, "Gelap");
    Blynk.virtualWrite(V1, 1); 
  }
}

void readLux(){
  int value = analogRead(PIN_LDR);
  float voltage = value * 5 / 4095.0;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10,GAMMA) / resistance, (1/GAMMA));
  Serial.print("lux: ");
  Serial.println(lux);
  Blynk.virtualWrite(V7, lux);
  alertLux(lux);
}

void sendSensor()
{
 TempAndHumidity  data = dhtSensor.getTempAndHumidity();
 Serial.println("Temp: " + String(data.temperature, 2) + "°C");
 Serial.println("Humidity: " + String(data.humidity, 1) + "%");
 Serial.println("---");
 Blynk.virtualWrite(V0, data.temperature); 
 float data_temp = data.temperature;
 float data_humid = data.humidity;
 alertTemp(data_temp);
 alertHumid(data_humid);
 Blynk.virtualWrite(V2, data.humidity);//mengirimkan data ke Virtual pin di Blynk Cloud
}

BLYNK_WRITE(V1){
  int pinValue = param.asInt();
  Serial.println(pinValue);
  digitalWrite(PIN_LED, pinValue);
}

void setup()
{
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode(PIN_LDR, INPUT);
  pinMode(PIN_LED, OUTPUT);
  digitalWrite(PIN_LED, LOW);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  timer.setInterval(1L, sendSensor);
  timer.setInterval(1L, readLux);
}

void loop()
{
  Blynk.run();
  timer.run();
}