<?php
class Wetter extends CWidget {
	
	public $ort;
	
	public function run(){
		$wetter=Yii::app()->cache->get('extensions.Wetter.wetter');
		if($wetter===false)
		{
			$mwetter = $this->website_wetter($this->ort,'Germany');
			$wetter['Ort'] = $this->ort;
			$wetter['jetzt']['tag']='Aktuell';
			$wetter['jetzt']['temperatur'] = (string) $mwetter[0]['temperatur'];
			$wetter['jetzt']['zustand'] = (string) $mwetter[0]['zustand'];
			$wetter['jetzt']['icon'] = str_replace(".gif",".png",(string) $mwetter[0]['icon']);
			$wetter['jetzt']['hoechsttemperatur']= (string) $mwetter[1]['hoechsttemperatur'];
			$wetter['jetzt']['tiefsttemperatur']= (string) $mwetter[1]['tiefsttemperatur'];
			
			$wetter['morgen']['tag']=(string) $mwetter[2]['wochentag'];
			$wetter['morgen']['hoechsttemperatur'] = (string) $mwetter[2]['hoechsttemperatur'];
			$wetter['morgen']['tiefsttemperatur'] = (string) $mwetter[2]['tiefsttemperatur'];
			$wetter['morgen']['zustand'] = (string) $mwetter[2]['zustand'];
			$wetter['morgen']['icon'] = str_replace(".gif",".png",(string) $mwetter[2]['icon']);
			Yii::app()->cache->set('extensions.Wetter.wetter',$wetter,3600);
			//Yii::app()->user->setFlash('new', "Data retrieved from google");
		}

		$this->render('wetter', compact('wetter'));
	}
	
	/*
	 Nutzung dieses Scripts nur gestattet, wenn Kommentare in PHP nicht entfernt werden oder ein Link zu folgender Adresse gesetzt wird:
	URL: http://www.web-spirit.de/webdesign-tutorial/9/Wetter-auf-eigener-Website-mit-Google-Weahter-API
	Beschreibung: Wettervorhersage auf der eigenen Website mit Zugriff auf die Google Weather API
	Autor: Sebastian Gollus
	Internet: http://www.web-spirit.de
	Version: 1.0.201106
	*/
	
	// Funktionsaufruf z.B.: $wetter = website_wetter("46562", "Germany", "/images/wetter/icons/", "de");
	
	private function website_wetter($plz, $land, $icons_src="/", $sprache="de", $ort="")
	{
		$icons_google = "/ig/images/weather/"; //alte Google-Version
		//$icons_google = "http://g0.gstatic.com/images/icons/onebox/"; //neue Google-Version (bzw. zwischenzeitlich ge�ndert)
	
		if($ort != "")
		{
			$station = $ort;
		}
		else
		{
			$station = $plz."-".$land;
		}
	
		$api = simplexml_load_string(utf8_encode(file_get_contents("http://www.google.com/ig/api?weather=".$station."&hl=".$sprache)));
	
		$wetter = array();
	
		// Allgemeine Informationen
		$wetter['stadt'] = $api->weather->forecast_information->city->attributes()->data;
		$wetter['datum'] = $api->weather->forecast_information->forecast_date->attributes()->data;
		$wetter['zeit'] = $api->weather->forecast_information->current_date_time->attributes()->data;
	
		// Aktuelles Wetter
		$wetter[0]['zustand'] = $api->weather->current_conditions->condition->attributes()->data;
		$wetter[0]['temperatur'] = $api->weather->current_conditions->temp_c->attributes()->data;
		$wetter[0]['luftfeuchtigkeit'] = $api->weather->current_conditions->humidity->attributes()->data;
		$wetter[0]['wind'] = $api->weather->current_conditions->wind_condition->attributes()->data;
		$wetter[0]['icon'] = str_replace($icons_google, $icons_src, $api->weather->current_conditions->icon->attributes()->data);
	
		// Wettervorhersage heute, morgen, in zwei und in drei Tagen ($wetter[1] bis $wetter[4])
		$i = 1;
		foreach($api->weather->forecast_conditions as $weather)
		{
			$wetter[$i]['wochentag'] = $weather->day_of_week->attributes()->data;
			$wetter[$i]['zustand'] = $weather->condition->attributes()->data;
			$wetter[$i]['tiefsttemperatur'] = $weather->low->attributes()->data;
			$wetter[$i]['hoechsttemperatur'] = $weather->high->attributes()->data;
			$wetter[$i]['icon'] = str_replace($icons_google, $icons_src, $weather->icon->attributes()->data);
	
			$i++;
		}
	
		return $wetter;
	}
}