#include <LiquidCrystal_I2C.h>
#include <Keypad.h>
#include "DHT.h"

#define DHTPIN1 19     
#define DHTPIN2 13  
#define DHTTYPE DHT22  

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display

DHT dht1(DHTPIN1, DHTTYPE);
DHT dht2(DHTPIN2, DHTTYPE);

const uint8_t ROWS = 4;
const uint8_t COLS = 4;
char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};

uint8_t colPins[COLS] = { 4, 0, 2, 15 }; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 18, 5, 17, 16 }; // Pins connected to R1, R2, R3, R4

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);
String keyinput = "";
String keysave = "121103";
bool statusmatch = false;
bool ruanganA = false;
bool ruanganB = false;

void setup() {
  Serial.begin(9600);
  lcd.init();                  
  lcd.backlight();

  while(!statusmatch) {
    lcd.setCursor(0,0);
    lcd.print("Input Password");

    char key = keypad.getKey();
    if (key != NO_KEY) {
      if(key !='D') {
        keyinput = keyinput+key;
        Serial.println(keyinput);
        lcd.setCursor(0,1);
        lcd.print(keyinput);
      } else {
        if(keyinput == keysave) {
          statusmatch = true;
          lcd.setCursor(0,1);
          lcd.print("     Sukses     ");
          delay(2000);
          lcd.clear();
        } else {
          keyinput = "";
          lcd.setCursor(0,1);
          lcd.print("     Salah      ");
          delay(2000);
          lcd.clear();
        }
      }
    }
  }

  Serial.println("Login Success");
  keyinput = "";
  dht1.begin();
  dht2.begin();
}

void loop() {
  float h1 = dht1.readHumidity();
  float t1 = dht1.readTemperature();
  float h2 = dht2.readHumidity();
  float t2 = dht2.readTemperature();

  if(ruanganA) {
    inkey();
    Serial.print("Ruangan 1 ");
    Serial.print("Suhu 1 : ");
    Serial.print(t1); 
    Serial.print(" Kel  1 : ");
    Serial.println(h1); 
    lcd.setCursor(0,0);
    lcd.print("1.");
  //Tampilan LCD Humidity
    lcd.setCursor(2,0);
    lcd.print("Hum=");
    lcd.setCursor(7,0);
    lcd.print(h1);
    lcd.setCursor(12,0);
    lcd.print("%");
//Tampilan LCD Temperature
    lcd.setCursor(2,1);
    lcd.print("Tem=");
    lcd.setCursor(7,1);
    lcd.print(t1);
    lcd.setCursor(12,1);
    lcd.print((char)223);
    lcd.print("C");
    delay(10);
  } 
  
  else if (ruanganB) {
    inkey();
    Serial.print("Ruangan 2 ");
    Serial.print("Suhu 2 : ");
    Serial.print(t2); 
    Serial.print(" Kel  2 : ");
    Serial.println(h2); 
    lcd.setCursor(0,0);
    lcd.print("2.");
  //Tampilan LCD Humidity
    lcd.setCursor(2,0);
    lcd.print("Hum=");
    lcd.setCursor(7,0);
    lcd.print(h2);
    lcd.setCursor(12,0);
    lcd.print("%");
//Tampilan LCD Temperature
    lcd.setCursor(2,1);
    lcd.print("Tem=");
    lcd.setCursor(7,1);
    lcd.print(t2);
    lcd.setCursor(12,1);
    lcd.print((char)223);
    lcd.print("C");
    delay(10);
  } else {
    inkey();
  }
}

void inkey() {
  char key = keypad.getKey();
  // lcd.setCursor(0,0);
  // lcd.print("Masukkan Ruangan");
  // lcd.setCursor(0,1);
  // lcd.print("--> ");
  if (key != NO_KEY) {
    if(key !='D') {
      keyinput = key;
      lcd.setCursor(15,0);
      lcd.print(keyinput);
    } else {
      if(keyinput == "A") {
        ruanganA = !ruanganA;
        ruanganB = false;
        // Tambahkan perintah untuk menonaktifkan tampilan ruangan B di sini
        lcd.clear();
      } else if(keyinput == "B") {
        ruanganB = !ruanganB;  
        ruanganA = false;  
        // Tambahkan perintah untuk menonaktifkan tampilan ruangan A di sini
        lcd.clear();      
      } else {
        keyinput = "";
        Serial.print("Ruangan Tidak Ditemukan.");
      }
    }
  }
}