#include <Shifter.h>
#include "DCF77.h"
#include "Time.h"

#define DCF_PIN 2	         // Connection pin to DCF 77 device
#define DCF_INTERRUPT 0		 // Interrupt number associated with pin
#define SER_Pin 10 //SER_IN
#define RCLK_Pin 9 //L_CLOCK
#define SRCLK_Pin 8 //CLOCK
#define NUM_REGISTERS 3 
time_t time;
DCF77 DCF = DCF77(DCF_PIN,DCF_INTERRUPT);
long lastsync=0;
long diffsync=0;
int anzsyncs=0;
Shifter shifter(SER_Pin, RCLK_Pin, SRCLK_Pin, NUM_REGISTERS);

void setup() {
//  Serial.begin(9600); 
  DCF.Start();
}

void loop() {
  delay(1000);
  if (diffsync>10800 || lastsync==0) // alle 3 Stunden oder wenn noch kein Sync...
  {
    time_t DCFtime = DCF.getTime(); // Check if new DCF77 time is available
    if (DCFtime!=0)
    {
      setTime(DCFtime);
      lastsync=DCFtime;
      anzsyncs+=1;
    }
  }	
  diffsync=now()-lastsync;
  zeitzuled(hour(),minute());
}

void zeitzuled(int h, int m)
{
  shifter.clear();
  if (lastsync!=0){
    if(m> 2 && m< 8) {shifter.setPin(1, HIGH); shifter.setPin(5, HIGH);}                            //  5 nach
    if(m> 7 && m<13) {shifter.setPin(2, HIGH); shifter.setPin(5, HIGH);}                            // 10 nach
    if(m>12 && m<18) {shifter.setPin(3, HIGH); shifter.setPin(5, HIGH);}                            // viertel nach
    if(m>17 && m<23) {shifter.setPin(2, HIGH); shifter.setPin(4, HIGH); shifter.setPin(6, HIGH);}   // 10 vor  halb
    if(m>22 && m<28) {shifter.setPin(1, HIGH); shifter.setPin(4, HIGH); shifter.setPin(6, HIGH);}   //  5 vor  halb
    if(m>27 && m<33) shifter.setPin(6, HIGH);                                                       //         halb 
    if(m>32 && m<38) {shifter.setPin(1, HIGH); shifter.setPin(5, HIGH); shifter.setPin(6, HIGH);}   //  5 nach halb 
    if(m>37 && m<43) {shifter.setPin(2, HIGH); shifter.setPin(5, HIGH); shifter.setPin(6, HIGH);}   // 10 nach halb
    if(m>42 && m<48) {shifter.setPin(3, HIGH); shifter.setPin(4, HIGH);}                            // viertel vor
    if(m>47 && m<53) {shifter.setPin(2, HIGH); shifter.setPin(4, HIGH);}                            // 10 vor
    if(m>52 && m<58) {shifter.setPin(1, HIGH); shifter.setPin(4, HIGH);}                            //  5 vor
    if(m>17) h++;                                                    // nach minute 17 std +1 anzeigen
    if(h==0) h=12;
    if(h>12) h=h-12;                                                 // 24h-Format -12
    if(h<11) shifter.setPin(h+6, HIGH);                              // StundenPins 1-10
    if(h==11) {shifter.setPin(17, LOW); shifter.setPin(18,HIGH);}    // ELF
    if(h==12) {shifter.setPin(17, HIGH); shifter.setPin(18, HIGH);}  // ZWO-ELF
  }
  if(lastsync==0) shifter.setPin(19, HIGH);                        // rote LED vor erstem sync
  if(lastsync!=0) shifter.setPin(0, HIGH);                         // ES IST ab erstem sync
  if(lastsync!=0 && second() % 2 ==0) shifter.setPin(20, HIGH);    // sekundenblinker 0, sobald sync
  if(lastsync!=0 && second() % 2 ==1) shifter.setPin(21, HIGH);    // sekundenblinker 1, sobald sync
  if(diffsync>11400) shifter.setPin(22, HIGH);                     // gelbe LED (letzer sync über 3 std 10 minuten her)
  shifter.write();

//Debug-Teil:
/*  Serial.print(lastsync);
  Serial.print ("\t");
  Serial.print(now());
  Serial.print ("\t");
  Serial.print (diffsync);
  Serial.print ("\t");
  Serial.print (hour());
  Serial.print (":");
  Serial.print (minute());
  Serial.print (":");
  Serial.println (second());
*/

}