#define seven_datapin 2
#define seven_clk 4
#define seven_latch 3
#include "uRTCLib.h"
uRTCLib rtc(0x68);
byte seven_seg_data;
int year ;
int month ;
int day ;
int hour ;
int minute ; 
int sec ; 
int temp;
int modestate = 0;
int hourset = 0;
int minset = 0;
#define segA 5
#define segB 6
#define segC 7
#define segD 8
#define segE 9
#define segF 10
#define segG 11
#define blink 13
#define switchb 12
#define mode A0
#define inc A1
#define dec A2 

int m;
unsigned long value = 0UL;
unsigned long maxValue = 10UL;

void setup() {
  // put your setup code here, to run once:
    Serial.begin(9600);
    delay(3000); 
    URTCLIB_WIRE.begin();
     
    pinMode(seven_datapin,OUTPUT);
    pinMode(seven_clk,OUTPUT);
    pinMode(seven_latch,OUTPUT);
    pinMode(segA, OUTPUT);
    pinMode(segB, OUTPUT);
    pinMode(segC, OUTPUT);
    pinMode(segD, OUTPUT);
    pinMode(segE, OUTPUT);
    pinMode(segF, OUTPUT);
    pinMode(segG, OUTPUT);
    pinMode(blink, OUTPUT);
    pinMode(switchb, INPUT_PULLUP);
    pinMode(mode, INPUT_PULLUP);
    pinMode(inc, INPUT_PULLUP);
    
    digitalWrite(A0, HIGH);
    digitalWrite(A1, HIGH);
    digitalWrite(A2, HIGH);

}

void loop(){
  
  rtc.refresh();
  year = rtc.year();
  month = rtc.month();
  day = rtc.day();
  hour = rtc.hour();
  minute = rtc.minute();
  sec = rtc.second();
  temp = 25; 
   

  bool switchbstate = digitalRead(12);
  Serial.println(switchbstate);
  if(hour >= 13){
    hour = hour-12;
  }  
 
  bool blinkState = sec  % 2 == 0;
  setblink(blinkState);

 	
  if(digitalRead(12)==LOW){
   
   digitalWrite(seven_latch, LOW);
   lightNumber(hour/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b10000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(hour%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b01000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(minute/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00100000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(minute%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00010000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(sec/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00001000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(sec%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000100);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   //Date 

   digitalWrite(seven_latch, LOW);
   lightNumber(day/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b10000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(day%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b01000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(month/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00100000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(month%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00010000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(2);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00001000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(0);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000100);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(year/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000010);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(year%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000001);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
  }

  else if(digitalRead(12)==HIGH){
    
    
    if(digitalRead(A0)==LOW){
      modestate++;      
      Serial.print("Modestate = ");
      Serial.println(modestate);
      if(modestate>5){
        modestate = 1;
      }
    }

   if(modestate == 1){
    if(digitalRead(A1)==LOW){
      hour++;      
      Serial.print("hourset = ");
      Serial.println(hour);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }

    if(digitalRead(A2)==LOW){
      hour--;  
      Serial.print("hourset = ");
      Serial.println(hour);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }  
    

   digitalWrite(seven_latch, LOW);
   lightNumber(hour/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b10000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(hour%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b01000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   



    


  }

  if(modestate == 2){
    if(digitalRead(A1)==LOW){
      minute++;      
      Serial.print("minset = ");
      Serial.println(minset);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }

    if(digitalRead(A2)==LOW){
      minute--;  
      Serial.print("hourset = ");
      Serial.println(hour);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }  
    
    


   digitalWrite(seven_latch, LOW);
   lightNumber(minute/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00100000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(minute%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00010000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);    
    


  }

    if(modestate == 3){
    if(digitalRead(A1)==LOW){
      day++;      
      Serial.print("minset = ");
      Serial.println(minset);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }

    if(digitalRead(A2)==LOW){
      day--;  
      Serial.print("hourset = ");
      Serial.println(hour);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }  
   digitalWrite(seven_latch, LOW);
   lightNumber(day/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b10000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(day%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b01000000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);


  }

      if(modestate == 4){
    if(digitalRead(A1)==LOW){
      month++;      
      Serial.print("minset = ");
      Serial.println(minset);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }

    if(digitalRead(A2)==LOW){
      month--;  
      Serial.print("hourset = ");
      Serial.println(hour);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, 23); }  
      digitalWrite(seven_latch, LOW);  
   lightNumber(month/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00100000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(month%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00010000);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);


  }


  if(modestate == 5){
    if(digitalRead(A1)==LOW){
      year++;      
      Serial.print("minset = ");
      Serial.println(minset);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, year); }

    if(digitalRead(A2)==LOW){
      year--;  
      Serial.print("hourset = ");
      Serial.println(hour);
      delay(100);
      
      rtc.set(hour, minute, sec, 5, day, month, year); }  
      digitalWrite(seven_latch, LOW);  
   digitalWrite(seven_latch, LOW);  
   lightNumber(year/10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000010);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);

   digitalWrite(seven_latch, LOW);  
   lightNumber(year%10);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000001);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
   delay(2);

   digitalWrite(seven_latch, LOW);  
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   shiftOut(seven_datapin,seven_clk,LSBFIRST,0b00000000);
   digitalWrite(seven_latch, HIGH);
  

  }

  
    delay(200);

 }
}

void lightNumber(int numberTodisplay){
  switch(numberTodisplay){
case 0:
   digitalWrite(segA,LOW);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,LOW);
   digitalWrite(segE,LOW);
   digitalWrite(segF,LOW);
   digitalWrite(segG,HIGH);
     break;   
  case 1:
   digitalWrite(segA,HIGH);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,HIGH);
   digitalWrite(segE,HIGH);
   digitalWrite(segF,HIGH);
   digitalWrite(segG,HIGH);
    break; 
  case 2:
   digitalWrite(segA,LOW);
   digitalWrite(segB,LOW);
   digitalWrite(segC,HIGH);
   digitalWrite(segD,LOW);
   digitalWrite(segE,LOW);
   digitalWrite(segF,HIGH);
   digitalWrite(segG,LOW);
    break;
  case 3:
   digitalWrite(segA,LOW);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,LOW);
   digitalWrite(segE,HIGH);
   digitalWrite(segF,HIGH);
   digitalWrite(segG,LOW);
    break;
 case 4:
   digitalWrite(segA,HIGH);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,HIGH);
   digitalWrite(segE,HIGH);
   digitalWrite(segF,LOW);
   digitalWrite(segG,LOW);
    break;
 case 5:
   digitalWrite(segA,LOW);
   digitalWrite(segB,HIGH);
   digitalWrite(segC,LOW);
   digitalWrite(segD,LOW);
   digitalWrite(segE,HIGH);
   digitalWrite(segF,LOW);
   digitalWrite(segG,LOW);
    break;
 case 6:
   digitalWrite(segA,LOW);
   digitalWrite(segB,HIGH);
   digitalWrite(segC,LOW);
   digitalWrite(segD,LOW);
   digitalWrite(segE,LOW);
   digitalWrite(segF,LOW);
   digitalWrite(segG,LOW);
   break;
 case 7:
   digitalWrite(segA,LOW);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,HIGH);
   digitalWrite(segE,HIGH);
   digitalWrite(segF,HIGH);
   digitalWrite(segG,HIGH);
  break;
 case 8:
   digitalWrite(segA,LOW);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,LOW);
   digitalWrite(segE,LOW);
   digitalWrite(segF,LOW);
   digitalWrite(segG,LOW);
    break;
 case 9:
   digitalWrite(segA,LOW);
   digitalWrite(segB,LOW);
   digitalWrite(segC,LOW);
   digitalWrite(segD,LOW);
   digitalWrite(segE,HIGH);
   digitalWrite(segF,LOW);
   digitalWrite(segG,LOW);
   break; 
  
  }}
  void setblink(bool value) {
  digitalWrite(blink, value ? LOW : HIGH);
}

  void setTime(int m){

  switch(m){
    case 1 : 
    if(value++ >= maxValue)
    {
	/* The Arduino executes this code approx. once every second
 	*  (assuming clock speed = 16MHz)
 	*/
  if(digitalRead(A1) == LOW){
    hour  = hour+1;

    Serial.print("hour = ");
    Serial.println(hour);


 	// Don't forget to reset the counter
 	value = 0UL;
  }


  } 
  break; 
  }
  }