<?php

namespace CorpusParole\Models;

use CorpusParole\Libraries\RdfModel\RdfModelResource;

use CorpusParole\Libraries\Utils;

use JsonSerializable;

use Log;

/**

 */

class GeoResource extends RdfModelResource implements JsonSerializable {

    public function __construct($uri, $graph) {

        parent::__construct($uri, $graph);

    }

    private $refLoc = false;

    private $notes = null;

    public function clearMemoizationCache() {

        $this->refLoc = false;

        $this->notes = null;

    }

    public function getRefLoc() {

        if($this->refLoc === false) {

            $refLoc = $this->getResource("<http://www.w3.org/2002/07/owl#sameAs>");

            $this->refLoc = is_null($refLoc)?null:$refLoc->getUri();

        }

        return $this->refLoc;

    }

    public function getNotes() {

        if(is_null($this->notes)) {

            $this->notes = $this->all('<http://www.w3.org/2004/02/skos/core#note>');

        }

        return $this->notes;

    }

    public function jsonSerialize() {

        $notes = array_map(

            function($note) { return Utils::processLiteralResourceOrString($note); },

            $this->getNotes()

        );

        return [

            'ref-loc' => $this->getRefLoc(),

            'notes' => $notes

        ];

    }

}