velopass.php

<?php
Class PubliBike {
	const ONLINE = 1;
    const OFFLINE = 3;
	const CONSTRUCTION = 0;
	const CACHE_FILE = "/home/www/804dba0db44da871b3b97d6441c7ff89/web/getvelo/cache";

	public function getNetworks(){
		$networks = $this->cache_fetch();
		if(!$networks){
			$networks = $this->fetchNetworkList();
		}
		return $networks;
	}
	
	private function cache_fetch(){
		if (file_exists(self::CACHE_FILE) and time() - filemtime(self::CACHE_FILE) < 60){
			return unserialize(file_get_contents(self::CACHE_FILE));
		}else{
			return false;
		}
	}
	
	private function cache_store($data){
		file_put_contents(self::CACHE_FILE, serialize($data));
	}
	
 	private function fetchNetworkList(){
		$networks = array();
		$networks_map = array();
		$url = "https://www.publibike.ch/myinterfaces/terminals.fr.json?filterid=0&stationArrow=show%20all%20stations";
		// use key 'http' even if you send the request to https://...
		$options = array('http' => array('method'  => 'GET'));
		$context  = stream_context_create($options);
		$result = file_get_contents($url, false, $context);
		$root = json_decode($result);
		
		foreach($root->groups as $group){
			if( $group->id != 35 ){ //remove SwissPass
				$network = array(
					'id' => $group->id,
					'name' => $group->name,
					'timestamp' => date('Y-m-d H:i:s'),
					'stations' => array());
				$networks_map[$group->id]  = $network;
			}
		}
		
		foreach($root->terminals as $terminal){
			if($terminal->status != self::OFFLINE){
				$bikes = $terminal->bikes[0]->available;
				$racks = $terminal->bikeholders[0]->holdersfree;
				$station = array(
					'id' => $terminal->terminalid,
					'name' => $terminal->name,
					'city' => $terminal->city,
					'lat' =>  $terminal->lat,
					'long' =>  $terminal->lng,
					'status' => $terminal->status == 1 ? 0 : 1,
					'bikes' => $bikes ? $bikes : 0, //type, available
					'racks' => $racks ? $racks : 0, //type, holders, holdersfree
					'r' => str_repeat('4', $bikes) . str_repeat('0', $racks),
					'r2' => ''
				);
				foreach($terminal->groupids as $id){
					if( $id != 35 ) { //remove SwissPass
						$networks_map[$id]['stations'][] = $station;
					}
				}
			}
		}
		$networks = array();
		
		foreach($networks_map as $n){
			$networks[] = $n;
		}
		
		$this->cache_store($networks);
		return $networks;
	}
	
	
}

function findById($array, $id){
	for($i=0; $i < count($array); $i++){
		if($array[$i]['id'] == $id){
			return $array[$i];
		}
	}
	return array('name' => 'NOT FOUND', 'stations' => array());
}

$velopass = new PubliBike();
if(isset($_GET['action']) && $_GET['action'] == 'tile'){
	if(isset($_GET['network']) && isset($_GET['station'])){
		$network = findById($velopass->getNetworks(), $_GET['network']);
		$station = findById($network['stations'], $_GET['station']);
		drawTile($station);
	}

}else{
	print json_encode($velopass->getNetworks());
}


function drawTile($station){

//TileSquareText01 if len <10?				
//translate
//singular, plurals
header('Content-type: text/xml');
$tile = <<<EOT
<?xml version="1.0" encoding="utf-8" ?>
<tile>
  <visual>
    <binding template="TileWideText01" branding="logo">
      <text id="1">{$station['name']}</text>
      <text id="2">{$station['city']}</text>
      <text id="3">▲ {$station['bikes']} vélos</text>
      <text id="4">▼ {$station['racks']} bornes</text>
    </binding>
    <binding template="TileSquareText03" branding="logo">
      <text id="1">{$station['name']}</text>
      <text id="2">{$station['city']}</text>
      <text id="3">▲ {$station['bikes']} vélos</text>
      <text id="4">▼ {$station['racks']} bornes</text>
    </binding>   
  </visual>
</tile>
EOT;
print $tile;
}
?>