extern OpenSprinkler os; // OpenSprinkler object
extern char tmp_buffer[];
byte findKeyVal (const char *str,char *strbuf, uint8_t maxlen,const char *key,bool key_in_pgm=false,uint8_t *keyfound=NULL);

// The weather function calls getweather.py on remote server to retrieve weather data
// the default script is WEATHER_SCRIPT_HOST/weather?.py
static char website[] PROGMEM = WEATHER_SCRIPT_HOST ;

static void getweather_callback(byte status, uint16_t off, uint16_t len) {
#if defined(ARDUINO)
  char *p = (char*)Ethernet::buffer + off;
#else
  char *p = ether_buffer;
#endif

// RAH variables added to calculate watering percentage
int  	maxh, minh, hf, tf, rf = -1;
float 	pre, prec = -1;
int 	meant = -500;

  /* scan the buffer until the first & symbol */
  while(*p && *p!='&') {
    p++;
  }
  if (*p != '&')  return;
  int v;
  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("sunrise"), true)) {
    v = atoi(tmp_buffer);
    if (v>=0 && v<=1440) {
      os.nvdata.sunrise_time = v;
    }
  }

  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("sunset"), true)) {
    v = atoi(tmp_buffer);
    if (v>=0 && v<=1440) {
      os.nvdata.sunset_time = v;
    }
  }
  os.nvdata_save(); // save non-volatile memory

////////////////////////////////////////////
// RAH calculate watering water percentage based on weather
////////////////////////////////////////////
  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("meant"), true)) 	{ meant = atoi(tmp_buffer);   }

  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("pre"), true)) 	{ pre   = atof(tmp_buffer);   }
  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("prec"), true)) 	{ prec  = atof(tmp_buffer);   }

  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("maxh"), true))   { maxh  = atoi(tmp_buffer);   }
  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("minh"), true))   { minh  = atoi(tmp_buffer);   }

	hf = 0;	if ((maxh>=0) and (minh>=0))	{hf = 40-(maxh+minh)/2;}
	
	tf = 0; if (meant>-100)			{tf = (meant - 70)*2;}

	rf = 0; 
	if (pre>=0)		{rf -= pre*200;}
	if (prec>=0)		{rf -= prec*200;}

	v = (int) (100 + hf + tf + rf);

    if (v>=0 && v<=250) 	
	{	os.options[OPTION_WATER_PERCENTAGE].value = v;
		os.options_save();		
	}

////////////////////////////////////////////
////////////////////////////////////////////

  
  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("tz"), true)) {
    v = atoi(tmp_buffer);
    if (v>=0 && v<= 96) {
      if (v != os.options[OPTION_TIMEZONE].value) {
        // if timezone changed, save change and force ntp sync
        os.options[OPTION_TIMEZONE].value = v;
        os.ntpsync_lasttime = 0;      
        os.options_save();
      }
    }
  }
  
  if (findKeyVal(p, tmp_buffer, TMP_BUFFER_SIZE, PSTR("eip"), true)) {
    os.external_ip = atol(tmp_buffer);
  }
  os.status.wt_received = 1;
}