#include <Arduino.h>
#include <WiFi.h>
#include <FirebaseESP32.h>
#include <IRremote.h>
#include <DHT.h>

#define FIREBASE_HOST "https://power-cdf0e-default-rtdb.firebaseio.com/"
#define FIREBASE_AUTH "nYnv5eVHpbj4rv6uSVZB9TFGHeWKlBhyPda8Vhyt"

static uint8_t RelayPin1 = 23;  //D23
static uint8_t RelayPin2 = 22;  //D22
static uint8_t RelayPin3 = 21;  //D21
static uint8_t RelayPin4 = 19;  //D19
static uint8_t RelayPin5 = 18;  //D18
static uint8_t RelayPin6 = 5;   //D5
static uint8_t RelayPin7 = 25;  //D25
static uint8_t RelayPin8 = 26;  //D26

static uint8_t ButtonPin1 = 13;  //D13
static uint8_t ButtonPin2 = 12;  //D12
static uint8_t ButtonPin3 = 14;  //D14
static uint8_t ButtonPin4 = 27;  //D27
static uint8_t ButtonPin5 = 33;  //D33
static uint8_t ButtonPin6 = 32;  //D32
static uint8_t ButtonPin7 = 15;  //D15
static uint8_t ButtonPin8 = 4;   //D4


//Update the HEX code of IR Remote buttons 0x<HEX CODE>
#define IR_Button_1 0x1767AF71
#define IR_Button_2 0x318A151
#define IR_Button_3 0xFCA418D1
#define IR_Button_4 0xAFD97D5
#define IR_Button_5 0xE7AF0F51
#define IR_Button_6 0x474E8371
#define IR_Button_7 0xB21EF5AD
#define IR_Button_8 0xC07874B1
#define IR_allOn 0x55B9A80D
#define IR_presentation 0x59C584175

static uint8_t IR_RECEIVER_PIN = 35;  // D35 (IR receiver pin)
// Create an IRrecv object
IRrecv irrecv(IR_RECEIVER_PIN);
// Create a decode_results object to store the IR data
decode_results results;

static uint8_t DHT_PIN = 16;  // RX2  pin connected with DHT
#define DHT_TYPE DHT11

DHT dht(DHT_PIN, DHT11);

static uint8_t wifiLed = 2;     // D2
static uint8_t gpio_reset = 0;  // Press BOOT for reset WiFi

static uint8_t LDR_PIN = 34;  // D34  pin connected with LDR



FirebaseData firebaseData;
String switchPath;

void setup() {

  Serial.begin(115200);

  pinMode(RelayPin1, OUTPUT);
  pinMode(RelayPin2, OUTPUT);
  pinMode(RelayPin3, OUTPUT);
  pinMode(RelayPin4, OUTPUT);
  pinMode(RelayPin5, OUTPUT);
  pinMode(RelayPin6, OUTPUT);
  pinMode(RelayPin7, OUTPUT);
  pinMode(RelayPin8, OUTPUT);
  //pinMode(wifiLed, OUTPUT);

  // Configure the input GPIOs
  pinMode(ButtonPin1, INPUT_PULLUP);
  pinMode(ButtonPin2, INPUT_PULLUP);
  pinMode(ButtonPin3, INPUT_PULLUP);
  pinMode(ButtonPin4, INPUT_PULLUP);
  pinMode(ButtonPin5, INPUT_PULLUP);
  pinMode(ButtonPin6, INPUT_PULLUP);
  pinMode(ButtonPin7, INPUT_PULLUP);
  pinMode(ButtonPin8, INPUT_PULLUP);



  // Connect to Wi-Fi
  WiFi.begin("Rakib", "12345678");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  // Initialize Firebase
  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
  Serial.println("Connected to Firebase");

  irrecv.enableIRIn();
}

void loop() {

  relayswitching();
  buttonswitching();

  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    unsigned long receivedIRCode = results.value;


     if (receivedIRCode == IR_Button_1) {
      if (digitalRead(RelayPin1) == HIGH) {
        digitalWrite(RelayPin1, LOW);
        Firebase.setString(firebaseData,"switches/switch1", "On");
      } 
      else {
        digitalWrite(RelayPin1, HIGH);
        Firebase.setString(firebaseData , "switches/switch1", "Off");
      }
    }

    else if (receivedIRCode == IR_Button_2) {
      if (digitalRead(RelayPin2) == HIGH) {
        digitalWrite(RelayPin2, LOW);
        Firebase.setString(firebaseData, "switches/switch2", "On");
        } 
      else {
        digitalWrite(RelayPin2, HIGH);
        Firebase.setString(firebaseData, "switches/switch2", "Off");
      }
    }

    else if (receivedIRCode == IR_Button_3) {
      if (digitalRead(RelayPin3) == HIGH) {
        digitalWrite(RelayPin3, LOW);
        Firebase.setString(firebaseData, "switches/switch3", "On");
      } 
      else {
        digitalWrite(RelayPin3, HIGH);
        Firebase.setString(firebaseData, "switches/switch3", "Off");
      }
    }


    else if (receivedIRCode == IR_Button_4) {
      if (digitalRead(RelayPin4) == HIGH) {
        digitalWrite(RelayPin4, LOW);
        Firebase.setString(firebaseData, "switches/switch4", "On");
      } else {
        digitalWrite(RelayPin4, HIGH);
        Firebase.setString(firebaseData, "switches/switch4", "Off");
      }
    }

    else if (receivedIRCode == IR_Button_5) {
      if (digitalRead(RelayPin5) == HIGH) {
        digitalWrite(RelayPin5, LOW);
        Firebase.setString(firebaseData, "switches/switch5", "On");
      } else {
        digitalWrite(RelayPin5, HIGH);
        Firebase.setString(firebaseData, "switches/switch5", "Off");
      }

    }

    else if (receivedIRCode == IR_Button_6) {
      if (digitalRead(RelayPin6) == HIGH) {
        digitalWrite(RelayPin6, LOW);
        Firebase.setString(firebaseData, "switches/switch6", "On");
      } else {
        digitalWrite(RelayPin6, HIGH);
        Firebase.setString(firebaseData, "switches/switch6", "Off");
      }

    }

    else if (receivedIRCode == IR_Button_7) {
      if (digitalRead(RelayPin7) == HIGH) {
        digitalWrite(RelayPin7, LOW);
        Firebase.setString(firebaseData, "switches/switch7", "On");
      } else {
        digitalWrite(RelayPin7, HIGH);
        Firebase.setString(firebaseData, "switches/switch7", "Off");
      }

    }

    else if (receivedIRCode == IR_Button_8) {
      if (digitalRead(RelayPin8) == HIGH) {
        digitalWrite(RelayPin8, LOW);
        Firebase.setString(firebaseData, "switches/switch8", "On");
      } else {
        digitalWrite(RelayPin8, HIGH);
        Firebase.setString(firebaseData, "switches/switch8", "Off");
      }
    }

    else if (receivedIRCode == IR_allOn) {
      Firebase.setString(firebaseData, "switches/allOn", "On");
    }

    else if (receivedIRCode == IR_presentation) {
      Firebase.setString(firebaseData, "switches/presentation", "On");
    } 
    
    else {
    }

    irrecv.resume();
  }


  humidity();
}

void humidity() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  if (!isnan(temperature) && !isnan(humidity)) {
    Serial.print(temperature);
    Serial.print(humidity);
    Firebase.setFloat(firebaseData, "temperature", temperature);
    Firebase.setFloat(firebaseData, "humidity", humidity);
  }
}

void IRremote() {
}

void buttonswitching() {
  Serial.println("button entry");

  if (digitalRead(ButtonPin1) == LOW) {
    if (digitalRead(RelayPin1) == HIGH) {
      digitalWrite(RelayPin1, LOW);
      Firebase.setString(firebaseData, "switches/switch1", "On");
    } else {
      digitalWrite(RelayPin1, HIGH);
      Firebase.setString(firebaseData, "switches/switch1", "Off");
    }
  }

  if (digitalRead(ButtonPin2) == LOW) {
    if (digitalRead(RelayPin2) == HIGH) {
      digitalWrite(RelayPin2, LOW);
      Firebase.setString(firebaseData, "switches/switch2", "On");
    } else {
      digitalWrite(RelayPin2, HIGH);
      Firebase.setString(firebaseData, "switches/switch2", "Off");
    }
  }

  if (digitalRead(ButtonPin3) == LOW) {
    if (digitalRead(RelayPin3) == HIGH) {
      digitalWrite(RelayPin3, LOW);
      Firebase.setString(firebaseData, "switches/switch3", "On");
    } else {
      digitalWrite(RelayPin3, HIGH);
      Firebase.setString(firebaseData, "switches/switch3", "Off");
    }
  }

  if (digitalRead(ButtonPin4) == LOW) {
    if (digitalRead(RelayPin4) == HIGH) {
      digitalWrite(RelayPin4, LOW);
      Firebase.setString(firebaseData, "switches/switch4", "On");
    } else {
      digitalWrite(RelayPin4, HIGH);
      Firebase.setString(firebaseData, "switches/switch4", "Off");
    }
  }

  if (digitalRead(ButtonPin5) == LOW) {
    if (digitalRead(RelayPin5) == HIGH) {
      digitalWrite(RelayPin5, LOW);
      Firebase.setString(firebaseData, "switches/switch5", "On");
    } else {
      digitalWrite(RelayPin5, HIGH);
      Firebase.setString(firebaseData, "switches/switch5", "Off");
    }
  }

  if (digitalRead(ButtonPin6) == LOW) {
    if (digitalRead(RelayPin6) == HIGH) {
      digitalWrite(RelayPin6, LOW);
      Firebase.setString(firebaseData, "switches/switch6", "On");
    } else {
      digitalWrite(RelayPin6, HIGH);
      Firebase.setString(firebaseData, "switches/switch6", "Off");
    }
  }

  if (digitalRead(ButtonPin7) == LOW) {
    if (digitalRead(RelayPin7) == HIGH) {
      digitalWrite(RelayPin7, LOW);
      Firebase.setString(firebaseData, "switches/switch7", "On");
    } else {
      digitalWrite(RelayPin7, HIGH);
      Firebase.setString(firebaseData, "switches/switch7", "Off");
    }
  }

  if (digitalRead(ButtonPin8) == LOW) {
    if (digitalRead(RelayPin8) == HIGH) {
      digitalWrite(RelayPin8, LOW);
      Firebase.setString(firebaseData, "switches/switch8", "On");
    } else {
      digitalWrite(RelayPin8, HIGH);
      Firebase.setString(firebaseData, "switches/switch8", "Off");
    }
  }
}


void relayswitching() {

  switchPath = "switches/switch1";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin1, LOW);
    Serial.println("relay1 is on");
  }

  else {
    digitalWrite(RelayPin1, HIGH);
    Serial.println("relay1 is off");
  }


  switchPath = "switches/switch2";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin2, LOW);
    Serial.println("relay2 is on");
  } else {
    digitalWrite(RelayPin2, HIGH);
    Serial.println("relay2 is off");
  }


  switchPath = "switches/switch3";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin3, LOW);
    Serial.println("relay3 is on");
  } else {
    digitalWrite(RelayPin3, HIGH);
    Serial.println("relay3 is off");
  }

  switchPath = "switches/switch4";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin4, LOW);
    Serial.println("relay4 is on");
  } else {
    digitalWrite(RelayPin4, HIGH);
    Serial.println("relay4 is off");
  }


  switchPath = "switches/switch5";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin5, LOW);
    Serial.println("relay5 is on");
  } else {
    digitalWrite(RelayPin5, HIGH);
    Serial.println("relay5 is off");
  }


  switchPath = "switches/switch6";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin6, LOW);
    Serial.println("relay6 is on");
  } else {
    digitalWrite(RelayPin6, HIGH);
    Serial.println("relay6 is off");
  }


  switchPath = "switches/switch7";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin7, LOW);
    Serial.println("relay7 is on");
  } else {
    digitalWrite(RelayPin7, HIGH);
    Serial.println("relay7 is off");
  }

  switchPath = "switches/switch8";
  Firebase.getString(firebaseData, switchPath.c_str());
  if (firebaseData.stringData() == "On") {
    digitalWrite(RelayPin8, LOW);
    Serial.println("relay8 is on");
  } else {
    digitalWrite(RelayPin8, HIGH);
    Serial.println("relay8 is off");
  }
}