/*
 * Sets of pins used for the LED displays.
 * These are LSB first, with a trailing 0 to indicate the last LED in the set.
 * Note that this means we can't drive an LED with pin 0. Use it for a switch.
 */
static int dow_pins[] = {4, 3, 2, 0} ;
static int ampm_pins[] = {18, 17, 0} ;
static int hour_pins[] = {9, 8, 7, 6, 5, 0} ;
static int minute_pins[] = {15, 14, 13, 12, 11, 10, 0} ;
static int second_pins[] = {16, 0} ;

/*
 * We use a single blinking LED for seconds. By making it an RGB LED
 * and setting the ampm pins to the other two color pins in it, we can
 * change the color of the blink to indicate 24 hour mode, am, or pm.
 * Define AMPMRGB if that is the case.
 */
//#define AMPMRGB

// Define the delays on button actions
#define DEBOUNCE	50	// debounce time
#define AUTO_DELAY	100	// Automatic counter
#define LONG_DELAY	250	// Delay befoer starting automatic counter

// We want to use the internal pullup resistors if we can.
#define INPUT_TYPE(down) (down == LOW ? INPUT_PULLUP : INPUT)

/*
 * Now the structure used to drive the display.
 * Tuples consisting of the pin arrays from above and a function to extract
 * the displayed value from a time_t. Terminated by a pair of NULL pointers.


 */
typedef struct {
  int *pins ;			// The pin array for this display
  int (*fetch)(time_t) ;	// Function to fetch value from time_t
  void (*adjuster)(time_t) ;	// Adjust this value
} Display ;

  }
}

/*
 * Routines for adjusting settings.
 * Each is called when the SET button is pressed to advance the selected
 * objects to the next state.
 *
 * Time settings always set the seconds back to 0 to avoid the clock
 * advancing while we're setting it. To get the seconds "right", set minutes
 * to the current minute, then advance it when your reference clock advances.
 */
static void
adjust_dow(time_t t) {
  setTime(hour(t), minute(t), 0, (day(t) % 7) + 1, month(t), year(t)) ;
}

// adjusting ampm adjust our display mode, not the time, and is saved to EEPROM
static void
adjust_ampm(time_t) {
  ampm = !ampm ;
  EEPROM.write(AMPM, ampm) ;
}

static void
adjust_hour(time_t t) {
  setTime((hour(t) + 1) % 24, minute(t), 0, day(t), month(t), year(t)) ;
}





static void
adjust_minute(time_t t) {
  setTime(hour(t), (minute(t) + 1) % 60, 0, day(t), month(t), year(t)) ;
}