#include <LiquidCrystal_I2C.h>
#include <Keypad.h>
#include <RTClib.h>
#include <ESP32Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const byte ROWS = 4; // Four rows
const byte COLS = 4; // Three columns


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


// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins.
byte rowPins[ROWS] = { 14, 27, 26, 25 };

// Connect keypad COL0, COL1 and COL2 to these Arduino pins.
byte colPins[COLS] = { 33, 32, 35, 34 };

//  Create the Keypad
Keypad kpd = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

RTC_DS1307  rtc;
// DS1307_ON;
// RTCDateTime dt; 
// RTCDateTime aktualny_czas; 

// RTC_DS1307  rtc(12, 13);
Servo servo_test;      //initialize a servo object for the connected servo  
// LiquidCrystal lcd(A0, A1, A2, 11, 12, 13); // Creates an LC object. Parameters: (rs, enable, d4, d5, d6, d7)

// int angle = 0;    
// int potentio = A0;      
// initialize the A0analog pin for potentiometer

int t1, t2, t3, t4, t5, t6;

boolean feed = true; // condition for alarm

 char key;

 int r[6];

 void setup() 
 { 
  servo_test.attach(10);   // attach the signal pin of servo to pin9 of arduino
  rtc.begin();
  lcd.begin(16,2);
  servo_test.write(55); 
  Serial.begin(9600);
  // pinMode(A0, OUTPUT);
  // pinMode(A1, OUTPUT);
  // pinMode(A2, OUTPUT);
 } 

 void loop() 
 { 
	lcd.setCursor(0,0);
	int buttonPress;
	buttonPress = digitalRead(A3);

	if (buttonPress==1)
	 setFeedingTime();

	//Serial.println(buttonPress);

	 lcd.print("Time:  ");
	 String t = "";
	 
	 t1 = t.charAt(0)-48;
	 t2 = t.charAt(1)-48;
	 t3 = t.charAt(3)-48;
	 t4 = t.charAt(4)-48;
	 t5 = t.charAt(6)-48;
	 t6 = t.charAt(7)-48;

	
	 lcd.setCursor(0,1);
	 lcd.print("Date: ");
	

	 if (t1==r[0] && t2==r[1] && t3==r[2] && t4==r[3]&& t5<1 && t6<3 && feed==true)
	 { 
	  servo_test.write(100);                   //command to rotate the servo to the specified angle 
	   delay(400);   
	  servo_test.write(55); 
	  feed=false;
	 } 
 }

void setFeedingTime()
{
  feed = true;
   int i=0;
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Set feeding Time");
  lcd.clear();
  lcd.print("HH:MM");
  lcd.setCursor(0,1);

  while(1){
    key = kpd.getKey();
    char j;

  if(key!=NO_KEY){
    lcd.setCursor(j,1);  
    lcd.print(key);
    r[i] = key-48;
    i++;
    j++;

    if (j==2)
    {
      lcd.print(":"); j++;
    }

    delay(500);

  }
  if (key == 'D')
  {key=0; break; }
  }
}