#include "WiFi.h"
const char* ssid = "Wokwi-GUEST";
const char* password = "";

#include "ThingSpeak.h"
#include <HTTPClient.h>
WiFiClient client;
const char* server = "api.thingspeak.com";
const String apikey = "FFUY7TWKF4GYWJZ4";

#include "DHTesp.h"
DHTesp dhtSensor;
const int DHT_PIN = 15;

const int LDR_PIN = A0;
const float GAMMA = 0.7;
const float RL10 = 50;
int day = 0;

#include "FirebaseESP32.h"
#define FIREBASE_AUTH "Y0t4miyh4jOq6WoJMLHVaq0LGEg4Kubwa2QwMFKG"
#define FIREBASE_HOST "https://jobwokwi-default-rtdb.asia-southeast1.firebasedatabase.app/"
FirebaseData firebaseData;
String path = "/";
void initFirebase() {
  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
  Firebase.reconnectWiFi(true);
  if (!Firebase.beginStream(firebaseData, path))
  {
    Serial.println("REASON: " + firebaseData.errorReason());
    Serial.println();
  }
  Serial.println("Kết nối Firebase thành công");
}

#include <ESP32Servo.h>
const int servoPin = 18;
Servo servo;
int pos = 0;

int PIR = 2;  //pir
int nilai = 0;

void setup() {
  Serial.begin(115200);
  delay(200);
  Serial.println();
  Serial.print("Connecting to wifi: ");
  Serial.println(ssid);
  WiFi.begin(ssid, password,6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Kết nối Wifi thành công!");
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22); //DHT22
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(PIR, INPUT);
  pinMode(LDR_PIN, INPUT);
  servo.attach(servoPin, 500, 2400);

  ThingSpeak.begin(client); // kết nối thingspeak
  initFirebase(); // Kêt nối Firebase
}

void loop() {
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  String temp = String(data.temperature, 2);
  String humidity = String(data.humidity, 2);
  float valueLDR = analogRead(LDR_PIN);
  valueLDR = map(valueLDR, 4095, 0, 1024, 0);
  float voltage = valueLDR / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  String luxRes = String(lux,2);
  if(isfinite(lux))
  {
    Serial.print("Ánh sáng: ");
    Serial.print(lux);
    Serial.println(" lx");
  }
  else
  {
    Serial.println("Too bright to measure");
    luxRes = "oo";
  }

  day = digitalRead(33);

  nilai = digitalRead(PIR);
  if (nilai == HIGH) {
    digitalWrite(12, HIGH);
    Serial.println("");
    Serial.println("Phat hien vat the!");
  } else {
    digitalWrite(12, LOW);
    Serial.println("sensor not active!");
  }

  bool c1 = Firebase.setString(firebaseData, "/nhietdo", temp);
  bool c2 = Firebase.setString(firebaseData, "/doam", humidity);
  bool c3 = Firebase.setString(firebaseData, "/dosang", luxRes);
  bool c4 = Firebase.setString(firebaseData, "/day", String(day,2));
  bool c5 = Firebase.setString(firebaseData, "/pir", String(nilai,2));
  if (c1 && c2 && c3 && c4 && c5) {
    Serial.println("Firebase_nhietdo: " + temp);
    Serial.println("Firebase_doam: " + humidity);
    Serial.println("Firebase_dosang: " + String(lux,2));
    Serial.println("Firebase_day: " + String(day,2));
    Serial.println("Firebase_PIR: " + String(nilai,2));
  }

  ThingSpeak.setField(1, temp);
  ThingSpeak.setField(2, humidity);
  ThingSpeak.setField(3,lux);
  int httpResponseCode = ThingSpeak.writeFields(1, apikey.c_str());
  if (httpResponseCode == 200) {
    Serial.println("Data sent to Thingspeak successfully");
  } else {
    Serial.print("Error sending data to Thingspeak. HTTP response code: ");
    Serial.println(httpResponseCode);
  }

  // get data _ mo cua
  if (Firebase.getInt(firebaseData, "/mocua")==true) {
    int mocua = firebaseData.to<int>();
    if (mocua==1){
      Serial.println("Mo cua");
      while (pos <= 180) {
        servo.write(pos);
        delay(15);
        pos++;
      }
    } else {
      Serial.println("Dong cua");
      while (pos >= 0) {
        servo.write(pos);
        delay(15);
        pos--;
      }
    }
  }
  // get data _ mo den
  if (Firebase.getInt(firebaseData, "/batden")==true) {
    int batden = firebaseData.to<int>();
    if (batden ==1){
      Serial.println("Bat den");
      digitalWrite(13, HIGH);
    } else {
      Serial.println("Tat den");
      digitalWrite(13, LOW);
    }
}

  Serial.println("");
  delay(100);
}