#include "DHT.h"
#include <Adafruit_SSD1306.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Servo.h>
#include <Keypad.h>
Servo monServ ;
DHT dht(5, DHT11);
int sen1=1;
int sen2=0;
int bserv=3;
int rel=4;
int led=2;
int x;
int esen1=LOW;
int esen2=LOW;
#define SCREEN_WIDTH 128 
#define SCREEN_HEIGHT 64 
#define OLED_RESET    -1 
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
#include <Keypad.h>
const byte ROWS = 4; 
const byte COLS = 4; 
byte rowPins[ROWS] = { 9, 8, 7, 6 };
byte colPins[COLS] = { 13, 12, 11, 10 };
char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};
const char password[] = "0000";
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );


void setup() {
  pinMode(1,INPUT);
  pinMode(0,INPUT);
  pinMode(5,INPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(2,OUTPUT);
  monServ.attach(bserv);
  dht.begin();
  Serial.begin(9600);
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  display.clearDisplay();
  display.setTextSize(1);      
  display.setTextColor(SSD1306_WHITE);  
  display.setCursor(0,0);

  display.display();
  
  
}

void loop() {
    float h = dht.readHumidity();
    float t = dht.readTemperature();
    
    Serial.print("Humidity: ");
    Serial.println(h);
    Serial.print("Temperature: ");
    Serial.println(t);
    
    if (t < 24) {digitalWrite(4, LOW);
     
      
      display.setTextSize(1);      
      display.setTextColor(SSD1306_WHITE);  
      display.setCursor(0,40); 
      display.print("AC OFF!");
      display.display();
      
    }
    if (t > 24) {digitalWrite(4, HIGH);
    
      display.setTextSize(1);      
      display.setTextColor(SSD1306_WHITE);  
      display.setCursor(0,40); 
      display.print("AC ON!");
      display.display();
    }

    int valeurTemperature = t;
    display.clearDisplay();
    display.setTextSize(1);      
    display.setTextColor(SSD1306_WHITE);  
    display.setCursor(0,0);
    display.print("temperature: ");
    display.println(t); 
    display.setTextSize(1);      
    display.setTextColor(SSD1306_WHITE);  
    display.setCursor(0,10); 
    display.print("humidite: ");
    display.println(h); 
    display.display(); 
    delay(100); 
    int nesen1 = digitalRead(sen1);
    int nesen2 = digitalRead(sen2);
    
    if(nesen1 != esen1)
    {
      
      if(nesen1==HIGH)
      {
      
        x++;
       
 
      }
      
      
 
    }
    esen1 = nesen1;

    if(nesen2 != esen2)
    {
      if(nesen2==HIGH)
      {
        x--;
        
 
      }
      
      
    }
    esen2 = nesen2;
    
    display.setTextSize(1);      
    display.setTextColor(SSD1306_WHITE);  
    display.setCursor(0,20); 
    display.print("Nbr Per =  ");
    display.println(x); 
    display.display(); 
    delay(10);
    if(x==0){monServ.write(180);
           }
      else{monServ.write(90);}
    if(x!=0)  {
      digitalWrite(2,HIGH);
      display.setTextSize(1);      
      display.setTextColor(SSD1306_WHITE);  
      display.setCursor(0,30); 
      display.print("light on ");
      display.display();
      delay(5);
      
      
    }
    else{
      digitalWrite(2, LOW);
      display.setTextSize(1);      
      display.setTextColor(SSD1306_WHITE);  
      display.setCursor(0,30); 
      display.print("light off");
      display.display();
      delay(5);
      
      
      
      
    }
  static char enteredPassword[sizeof(password)] = "";
  char key = keypad.getKey();
  if (key != NO_KEY) {
    Serial.print("Key pressed: ");
    Serial.println(key);
    if (strlen(enteredPassword) < sizeof(password) - 1) {
      strcat(enteredPassword, &key); 
      Serial.print("enter passcode");
      Serial.println(enteredPassword);
    }
    else {
      if (strcmp(enteredPassword, password) == 0) {
            digitalWrite(2, HIGH);
            }
    
      else {
        memset(enteredPassword, 0, sizeof(password));
             digitalWrite(2,LOW);
           }
    }
  }
}