#include "project.h"


static uint8_t code[16];
static int code_len;
static int hide;
static int show;


void
code_display (void)
{
  size_t i;

#if 1
  lcd_erase_line (0, 16);

  if (code_len != 16)
    lcd_write ("Enter code:", 0, 0);
  else
    lcd_write ("Code entered:", 0, 0);
#endif

  for (i = 0; i < sizeof (code); ++i)
    lcd_write_char (hide ? '*' : (code[i] ? code[i] : ' '), i, 1);


  lcd_backlight (!hide);
}


void
code_tick (void)
{
  if (!show)
    return;
  show--;
  if (!show)
    {
      hide++;
      code_display ();
    }

}




void
key_event (uint8_t v, int ud)
{
  if (!ud)
    return;

  if (code_len == sizeof (code))
    {
      code_len = 0;
      memset (code, ' ', sizeof (code));
    }


  show = 5000;
  hide = 0;

  code[code_len++] = v;


  code_display ();


}