#include <Wire.h>
#include <RTClib.h>
#include <EEPROM.h>
#include <LiquidCrystal.h>

LiquidCrystal lcd(12,11,4,5,6,7); 
RTC_DS1307 RTC;

const int button1 = 53; // Button SELECT MENU'
const int button2 = 52; // Button +
const int button3 = 51; // Button -
const int stop_button = 50; // button stop alarm

#define   buzzer 33
int temp,hours,minute,add=52;
int HOUR,MINUTE,SECOND;
char daysOfTheWeek[7][12] = {"SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY"};
char* medicineType[]={"Blood", "Heart", "Diabetes"};
char* medicinedose[]={"1","2","3"};

void setup()
{
  Wire.begin();
 RTC.begin();
 lcd.begin(16,2);

 pinMode(button1, INPUT_PULLUP);
 pinMode(button2, INPUT_PULLUP);
 pinMode(button3, INPUT_PULLUP);
 pinMode(stop_button, OUTPUT);
 pinMode(buzzer, OUTPUT);
 
    lcd.setCursor(0,0);
    lcd.print("Hello");
    lcd.setCursor(0,1);
    lcd.print("   Med Reminder  ");
    delay(2000);
    lcd.setCursor(0,0);
    lcd.print("By   Ikram Hanafi  ");
    delay(2000);

 if(!RTC.isrunning())
   {
      RTC.adjust(DateTime(__DATE__,__TIME__));
   }
}

void loop()
{
   int temp=0,val=1,temp4;
   DateTime now   = RTC.now();
   if(digitalRead(button1) == 0)      //set medicine time
   {   
     lcd.setCursor(0,0);
     lcd.print("  Set Medicine  ");
     lcd.setCursor(0,1);
     lcd.print("  Reminder time ");
     delay(2000);
     lcd.clear();
     lcd.setCursor(0,0);
     lcd.print("Enter Time 1");
     scr();
     time(1);
     delay(1000);
     lcd.clear();
     lcd.setCursor(0,0);
     lcd.print("Enter Time 2");
     scr();
     time(2);
     delay(1000);
     lcd.clear();
     lcd.setCursor(0,0);
     lcd.print("Enter Time 3");
     lcd.setCursor(0,1);
     scr();
     time(3);
     lcd.setCursor(0,0);
     lcd.print("Medicine   reminder");
     lcd.setCursor(0,1);
     lcd.print("  time has set  ");
     delay(2000);
   } 
  
   {
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Time:");
    lcd.setCursor(6,0);
    lcd.print(HOUR=now.hour(),DEC); 
    lcd.print(":");
    lcd.print(MINUTE=now.minute(),DEC);
    lcd.print(":");
    lcd.print(SECOND=now.second(),DEC);
    lcd.setCursor(0,1);
    lcd.print("Date: ");
    lcd.print(now.day(),DEC);
    lcd.print("/");
    lcd.print(now.month(),DEC);
    lcd.print("/");
    lcd.print(now.year(),DEC);
    delay(200);
   }
 
}
void scr()
   { 
    lcd.setCursor(0,1);
    lcd.print(HOUR);
    lcd.print(":");
    lcd.print(MINUTE);
    lcd.print(":");
    lcd.print(SECOND);
   }
void time(int x)  
{
  int temp=1,minuts=0,hours=0,seconds=0;
     while(temp==1)
    {
     if(digitalRead(button2)==0)
     {
       HOUR++;
       if(HOUR==24)
       {
         HOUR=0;
       }
       while(digitalRead(button2)==0);
     }     
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("Enter   Time ");
      lcd.print(x); 
      lcd.setCursor(0,1);
      lcd.print(HOUR);
      lcd.print(":");
      lcd.print(MINUTE);
      lcd.print(":");
      lcd.print(SECOND);
      delay(100);

      if(digitalRead(button3)==0)
     {
       hours=HOUR;
       EEPROM.write(add++,hours);
       temp=2;
       while(digitalRead(button3)==0);
     }
    } 

    while(temp==2)
    {     
      if(digitalRead(button2)==0)
      {
       MINUTE++;
       if(MINUTE==60)
        {
          MINUTE=0;
        }
       while(digitalRead(button2)==0);
      }
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("Enter   Time ");
      lcd.print(x); 
      lcd.setCursor(0,1);
      lcd.print(HOUR);
      lcd.print(":");
      lcd.print(MINUTE);
      lcd.print(":");
      lcd.print(SECOND);
      delay(100);
      if(digitalRead(button3)==0)
       {
        minute=MINUTE;
        EEPROM.write(add++, minute);
        temp=0;
        while(digitalRead(button3)==0);
       }
    }
    delay(1000);
}