<?

// Call from Weatherstation
// "GET /wetterstation.php?ID=1&PASSWORD=1&indoortempf=81.1&tempf=70.5&dewptf=52.7&windchillf=70.5&indoorhumidity=40&humidity=53&windspeedmph=1.6&windgustmph=2.2&winddir=79&absbaromin=29.064&baromin=29.903&rainin=0.000&dailyrainin=0.000&weeklyrainin=0.000&monthlyrainin=0.000&solarradiation=0.00&UV=0&dateutc=2020-06-12%2020:29:37&softwaretype=EasyWeatherV1.5.0&action=updateraw&realtime=1&rtfreq=5 HTTP/1.0" 200 913 "-" "-"
$weatherprefix = "Weatherstation_"; // if you have a prefix in your OH2 items configuration
// resends all GET-Values directly to OH2 API
foreach ($_GET as $key => $value) {
	// looking for suffixes and redirecting them
	/* Weatherunderground format looks like this:
		* ID				ID (configuratble in the App)
		* PASSWORD			KEY (configurable in the App)
		* indoortempf		in Fahrenheit
		* windchillf		in Fahrenheit
		* indoorhumidity	in percent
		* humidity			in pfpro_cleanup	
		* windspeedmph		in mp/h
		* windgustmph		in mp/h	
		* winddir			in degrees
		* absbaromin		in inch of mercury
		* baromin			in inch of mercury
		* rainin			in inch
		* dailyrainin		in inch
		* weeklyrainin		in inch
		* monthlyrainin		in inch
		* solarradiation	in W/m2
		* UV				in index (0 - 11)
		* dateutc			current date (UTC)
		* softwaretype		used software
		* action			usually "updateraw"
		* realtime			using real-time updates (0/1)
		* rtfreq			update frequency (configurable in the App)
		
		as seen here, with the last character(s) of a attribute you can tell, which unit is used
	*/
	
	switch (substr($key, -3)) {
		case "mpf":
			// unit is in Fahrenheit (remove "f")
			sendOH2Command($weatherprefix.str_replace("mpf", "mp", $key), f2c($value));
			break;
		case "ptf":
			// unit is in Fahrenheit also (remove "f")
			sendOH2Command($weatherprefix.str_replace("ptf", "pt", $key), f2c($value));
			break;
		case "llf":
			// unit is in Fahrenheit also (remove "f")
			sendOH2Command($weatherprefix.str_replace("llf", "ll", $key), f2c($value));
			break;
		case "min":
			// unit is in inHg (remove "min")
			sendOH2Command($weatherprefix.str_replace("min", "", $key), inHG2hPa($value));
			break;
		case "nin":
			// unit is in inch (remove "in")
			sendOH2Command($weatherprefix.str_replace("nin", "n", $key), in2cm($value));
			break;
		case "mph":
			// unit is in mph (remove "mph")
			sendOH2Command($weatherprefix.str_replace("mph", "", $key), mph2kmh($value));
			break;
		case "utc":
			// unit is in UTC
			sendOH2Command($weatherprefix.$key, str2UTC($value)."");			
			break;
		default:
			// everything else: not a unit, or percent or string
			sendOH2Command($weatherprefix.$key, $value);
	}	
}

function sendOH2Command($item, $data) {
  $url = "http://192.168.1.100:8080/rest/items/" . $item;

  $options = array(
	'http' => array(
		'header'  => "Content-type: text/plain\r\n",
		'method'  => 'POST',
		'content' => '' . $data  //http_build_query($data),
	),
  );

  $context  = stream_context_create($options);
  $result = file_get_contents($url, false, $context);
  return $result;
}

function str2UTC($given_value) {
	return str_replace(" ", "T", $given_value);
}

function mph2kmh($given_value) {
	return '' . round( floatval($given_value) * 1.60934, 1);
}

function in2cm($given_value) {
	return '' . round( floatval($given_value) * 2.54, 1);
}

function inHG2hPa($given_value) {
	return '' . round( floatval($given_value) * 33.8639 , 1); //1 inHG = 3386,39 Pa, Bespielwert: 29.064 sollte ca 985 sein
}

function f2c($given_value) {
	return '' . round( (5.0 / 9 * (floatval($given_value) - 32 )), 1);
}


?>