<?php

namespace CorpusParole\Models;

use Config;

use CorpusParole\Libraries\Utils;

use CorpusParole\Libraries\CocoonUtils;

use CorpusParole\Libraries\RdfModel\RdfModelResource;

use JsonSerializable;

use Log;

use EasyRdf\Literal;

use EasyRdf\Resource;

use EasyRdf\Graph;

/**

 */

class DocumentResult extends DocumentBase {

    public function __construct($uri, $graph = null) {

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

    }

    private $publishers = false;

    private $duration = false;

    private $durationMs = -1;

    protected function clearMemoizationCache() {

        parent::clearMemoizationCache();

        $this->publishers = false;

        $this->duration = false;

        $this->$durationMs = -1;

    }

    public function getPublishers() {

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

            try {

                $this->publishers = $this->getProvidedCHO()->getLiteral('dc11:publisher');

            } catch(\Exception $e) {

                $this->publishers = null;

            }

        }

        return $this->publishers;

    }

    public function getPublishersValue() {

        $publishers = $this->getPublishers();

        return is_null($publishers)?null:$publishers->getValue();

    }

    public function getDuration() {

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

            try {

                $this->duration = $this->getProvidedCHO()->getLiteral('<http://purl.org/dc/terms/extent>');

            } catch(\Exception $e) {

                $this->duration = null;

            }

        }

        return $this->duration;

    }

    public function getDurationValue() {

        if($this->durationMs === -1) {

            $this->durationMs = Utils::iso8601IntervalToMillis($this->getDuration());

        }

        return $this->durationMs;

    }

    public function jsonSerialize() {

        $res = parent::jsonSerialize();

        if($this->graph) {

            $res = array_merge($res, [

                'publishers' => $this->getPublishersValue(),

                'duration' => $this->getDurationValue()

            ]);

        }

        return $res;

    }

}