<?php
/**
 * https://developers.google.com/maps/documentation/streetview/
 * Image de 640x640 max
 * Heading 0 à 360
 * 0, 45, 90, 135, 180, 225, 270, 315
 * Récup de chaque image enregistré SIRET-DEG
 */
class Scores_Google_Streetview
{
	/**
	 * Service URL
	 * @var string
	 */
	protected $url = 'http://maps.googleapis.com/maps/api/streetview?';

	/**
	 * Max size 640x640
	 * @var string
	 */
	protected $size = '640x640';

	/**
	 * GPS ou Adresse
	 * @var strign
	 */
	protected $location = null;

	/**
	 * Defaut 90, Max 120, represents zoom, with smaller numbers indicating a higher level of zoom
	 * @var unknown
	 */
	protected $fov = 90;

	/**
	 * (default is 0) Specifies the up or down angle of the camera relative to the Street View vehicle
	 * @var unknown
	 */
	protected $pitch = 0;

	/**
	 * (optional) identifies your application for quota purposes
	 * @var string
	 */
	protected $key = null;

	/**
	 * always false
	 * @var string
	 */
	protected $sensor = 'false';

	/**
	 * Indicates the compass heading of the camera (0 to 360)
	 */
	protected $heading = 0;

	/**
	 * Number of image by the circle (360°)
	 * @var int
	 */
	protected $nbImage = 8;

	/**
	 * File extension
	 * @var string
	 */
	protected $extension = 'jpg';

	/**
	 * Path where files are stored
	 */
	protected $path = '';

	/**
	 *
	 * @var string
	 */
	protected $siret;

	/**
	 *
	 */
	public function __construct($siret)
	{
		$this->size = '320x320';

		$this->siret = $siret;

		$c = Zend_Registry::get('config');
		$this->path = realpath($c->profil->path->data).'/google/streetview';
	}

	/**
	 *
	 * @param unknown $lattitude
	 * @param unknown $longitude
	 */
	public function setLocationGeo($lattitude, $longitude)
	{
		$this->location = $lattitude.','.$longitude;
	}

	/**
	 *
	 * @param unknown $adresse
	 */
	public function setLocationTxt($adresse){}

	/**
	 *
	 * @param unknown $num
	 */
	public function setHeading($num)
	{
		$this->heading = $num;
	}

	/**
	 *
	 * @return multitype:number
	 */
	public function getNumDeg()
	{
		$mark = array();
		$deg = 360/$this->nbImage;
		$i=$calc=0;
		while ($calc<360) {
			$mark[$i] = $calc;
			$calc+=$deg;
			$i++;
		}
		return $mark;
	}

	/**
	 *
	 * @return string
	 */
	public function urlImg()
	{
		$url = '';

		$params = array( 'size', 'location', 'fov', 'pitch', 'sensor', 'heading' );
		foreach ($params as $param) {
			if ( $this->{$param} !== null ) {
				$url.= '&'.$param.'='. $this->{$param};
			}
		}

		return $this->url . substr($url,1);
	}

	/**
	 *
	 */
	public function getImg()
	{
		require_once 'common/curl.php';
		$page = getUrl($this->url, '', '', '', false);

		Zend_Registry::get('firebug')->info('URL = '.$this->url);
		if ( !in_array($page['code'], array(400, 408, 403)) ) {
			$body = $page['body'];
			file_put_contents($this->pathImg(), $body);
		}
	}

	/**
	 *
	 * @return string
	 */
	public function pathImg()
	{
		$filename = $this->siret.'-'.$this->heading . '.' . $this->extension;
		return $this->path . DIRECTORY_SEPARATOR . $filename;
	}

	/**
	 *
	 * @return string
	 */
	public function display()
	{
		$this->url = $this->urlImg();
		$file = $this->pathImg();
		Zend_Registry::get('firebug')->info('Filename = '.$file);
		if ( !file_exists($file) ) {
			$this->getImg();
		}

		return basename($file);
	}

}