<?php
/**
 * @phpcs:disable PSR1.Classes.ClassDeclaration.MultipleClasses
 */

/**
 * SIOC::WikiDokuArticle object
 *
 * Contains information about a wiki article
 */
class SIOCDokuWikiArticle extends SIOCObject
{

    private $type = 'sioct:WikiArticle';
    private $id = null;
    private $url = null;
    private $subject = null;
    private $creator = array();
    private $contributors = array();
    private $created = null;
    private $modified = null;
    private $links = array();
    private $backlinks = array();
    private $previous_version = null;
    private $next_version = null;
    private $latest_version = false; // show latest version
    private $has_container = null;
    private $has_space = null;
    private $content = null;
    private $content_encoded = null;
    private $is_creator = false;

    public function __construct($id, $url, $subject, $content)
    {
        $this->id      = $id;
        $this->url     = $url;
        $this->subject = $subject;
        $this->content = $content;
    }

    public function addCreated($created)
    {
        $this->created = $created;
    }

    public function addModified($modified)
    {
        $this->modified = $modified;
    }

    public function addCreator($creator)
    {
        $this->creator = $creator;
    }

    public function addContributors($contributors)
    {
        $this->contributors = $contributors;
    }

    public function isCreator()
    {
        $this->is_creator = true;
    }

    public function addLinks($links)
    {
        if (is_array($links) && count($links) > 0) {
            $this->links = $links;
        }
    }

    public function addBacklinks($links)
    {
        $this->backlinks = $links;
    }

    //function addLinksExtern($links) { if (is_array($links) && count($links)>0) $this->ext_links = $links; }
    public function addVersionPrevious($rev)
    {
        $this->previous_version = $rev;
    }

    public function addVersionNext($rev)
    {
        $this->next_version = $rev;
    }

    public function addVersionLatest()
    {
        $this->latest_version = true;
    }

    public function addContentEncoded($encoded)
    {
        $this->content_encoded = $encoded;
    }

    public function addContainer($id)
    {
        $this->has_container = $id;
    }

    public function addSite($url)
    {
        $this->has_space = $url;
    }

    public function getContent(&$exp): string
    {
        $rdf = '<' . $this->type . " rdf:about=\"" . clean($this->url, true) . "\">\n";
        if ($this->subject) {
            $rdf .= "    <dc:title>" . clean($this->subject) . "</dc:title>\n";
            // if(strcmp($this->has_container, 'http://en.wikipedia.org')===0)
            //    $rdf .= "    <foaf:primaryTopic rdf:resource=\"".clean('http://dbpedia.org/resource/'
            //      .$this->subject)."\"/>\n";
        }

        $creator_name = null;

        if (count($this->contributors) > 0) {
            foreach ($this->contributors as $cont_id => $cont_name) {
                if (!isset($this->creator['sioc:modifier']) || ($this->creator['sioc:modifier'] != $cont_id)) {
                    $rdf .= "    <sioc:has_modifier rdf:resource=\"" . normalizeUri(
                            $exp->siocURL('user', $cont_id)
                        ) . "\" rdfs:label=\"" . clean($cont_name) . "\"/>\n";
                }
            }

            if (isset($this->contributors[$this->creator['sioc:modifier']])) {
                $creator_name = 'rdfs:label="' . clean($this->contributors[$this->creator['sioc:modifier']]) . '"';
            }
        }

        if (is_array($this->creator)) {
            // if ($this->creator['foaf:maker'])
            //     $rdf .= "    <foaf:maker rdf:resource=\"".clean($this->creator['foaf:maker'])."\"/>\n";
            if ($this->creator['sioc:modifier']) {
                if ($this->is_creator === false) {
                    $rdf .= "    <sioc:has_modifier rdf:resource=\"" . normalizeUri(
                            $exp->siocURL('user', $this->creator['sioc:modifier'])
                        ) . "\" $creator_name/>\n";
                }
                if ($this->is_creator === true) {
                    $rdf .= "    <sioc:has_creator rdf:resource=\"" . normalizeUri(
                            $exp->siocURL('user', $this->creator['sioc:modifier'])
                        ) . "\" $creator_name/>\n";
                }
            }
        }

        if ($this->created) {
            $rdf .= "    <dcterms:created>" . $this->created . "</dcterms:created>\n";
        }

        if ($this->modified) {
            $rdf .= "    <dcterms:modified>" . $this->modified . "</dcterms:modified>\n";
        }

        if ($this->has_space) {
            $rdf .= "    <sioc:has_space rdf:resource=\"" . clean($this->has_space, true) . "\" />\n";
            // TODO: rdfs:label
        }

        if ($this->has_container) {
            $rdf .= "    <sioc:has_container rdf:resource=\"" . normalizeUri(
                    $exp->siocURL('container', $this->has_container)
                ) . "\" />\n";
            // TODO: rdfs:label
        }

        if ($this->content) {
            $rdf .= "    <sioc:content><![CDATA[" . pureContent($this->content) . "]]></sioc:content>\n";
        }

        if ($this->content_encoded) {
            $rdf .= "    <content:encoded><![CDATA[" . $this->content_encoded . "]]></content:encoded>\n";
        }

        /*
        if(is_array($this->topics)) {
            foreach($this->topics as $topic=>$url) {
                $rdf .= "    <sioc:topic>\n";
                $rdf .= "        <sioct:Category rdf:about=\"" . clean($url) ."\">\n";
                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
                        clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$url);
                if ($this->api) $rdf .= clean("&api=" . $this->api);
                $rdf .= "\"/>\n";
                $rdf .= "        </sioct:Category>\n";
                $rdf .= "    </sioc:topic>\n";
            }
        }
        */

        if (is_array($this->links) && count($this->links) > 0) {
            foreach ($this->links as $link_id => $link_exists) {
                if ($link_exists && !isHiddenPage($link_id)) {
                    $rdf .= "    <sioc:links_to rdf:resource=\"" . normalizeUri(
                            $exp->siocURL('post', $link_id)
                        ) . "\"/>\n";
                    // TODO: rdfs:label
                }
            }
        }

        if (count($this->backlinks) > 0) {
            foreach ($this->backlinks as $link_id) {
                if (!isHiddenPage($link_id)) {
                    $rdf .= "    <dcterms:isReferencedBy rdf:resource=\"" . normalizeUri(
                            $exp->siocURL('post', $link_id)
                        ) . "\"/>\n";
                    // TODO: rdfs:label
                }
            }
        }

        /*
        if(is_array($this->ext_links)) {
            foreach($this->ext_links as $label=>$url) {
                $rdf .= "    <sioc:links_to rdf:resource=\"" . clean($url) ."\"/>\n";
            }
        }
        */

        if ($this->previous_version) {
            $rdf .= "    <sioc:previous_version rdf:resource=\"" . normalizeUri(
                    $exp->siocURL(
                        'post',
                        $this->id . $exp->_urlseparator . 'rev' . $exp->_urlequal . $this->previous_version
                    )
                ) . "\"/>\n";
            // TODO: rdfs:label

            /* If there is support for inference and transitivity the following is not needed */
            $rdf .= "    <sioc:earlier_version rdf:resource=\"" . normalizeUri(
                    $exp->siocURL(
                        'post',
                        $this->id . $exp->_urlseparator . 'rev' . $exp->_urlequal . $this->previous_version
                    )
                ) . "\"/>\n";
            // TODO: rdfs:label

        }

        if ($this->next_version) {
            $rdf .= "    <sioc:next_version rdf:resource=\"" . normalizeUri(
                    $exp->siocURL(
                        'post',
                        $this->id . $exp->_urlseparator . 'rev' . $exp->_urlequal . $this->next_version
                    )
                ) . "\"/>\n";
            // TODO: rdfs:label

            /* If there is support for inference and transitivity the following is not needed */
            $rdf .= "    <sioc:later_version rdf:resource=\"" . normalizeUri(
                    $exp->siocURL(
                        'post',
                        $this->id . $exp->_urlseparator . 'rev' . $exp->_urlequal . $this->next_version
                    )
                ) . "\"/>\n";
            // TODO: rdfs:label
        }

        if ($this->latest_version) {
            $rdf .= "    <sioc:latest_version rdf:resource=\"" . normalizeUri(
                    $exp->siocURL('post', $this->id)
                ) . "\"/>\n";
            // TODO: rdfs:label
        }

        /*
        if($this->has_discussion && (strpos($this->has_discussion, 'Talk:Talk:') == FALSE)) {
                $rdf .= "    <sioc:has_discussion>\n";
                $rdf .= "        <sioct:WikiArticle rdf:about=\"" . clean($this->has_discussion) ."\">\n";
                $rdf .= "            <rdfs:seeAlso rdf:resource=\"" .
                        clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->has_discussion);
                if ($this->api) $rdf .= clean("&api=" . $this->api);
                $rdf .= "\"/>\n";
                $rdf .= "        </sioct:WikiArticle>\n";
                $rdf .= "    </sioc:has_discussion>\n";
        }
        */

        /*
        if($this->redirpage)
        {
            $rdf .= "    <owl:sameAs rdf:resource=\"" . clean($this->redirpage) ."\"/>\n";
            $rdf .= "    <rdfs:seeAlso rdf:resource=\"" . 
                        clean('http://ws.sioc-project.org/mediawiki/mediawiki.php?wiki='.$this->redirpage);
            if ($this->api) $rdf .= clean("&api=" . $this->api);
            $rdf .= "\"/>\n";
        }
        */

        $rdf .= "</" . $this->type . ">\n";
        return $rdf;
    }
}

/**
 * SIOC::DokuWikiUser object
 *
 * Contains information about a wiki user
 */
class SIOCDokuWikiUser extends SIOCObject
{

    private $type = 'user';

    private $id;
    private $nick;
    private $url;
    private $name;
    private $email;
    private $sha1;
    private $homepage;
    private $foaf_uri;
    private $role;
    private $sioc_url;
    private $foaf_url;

    public function __construct($id, $url, $userid, $name, $email)
    {
        $this->id   = $id;
        $this->nick = $userid;
        $this->name = $name;
        //$this->email = $email;
        $this->url = $url;

        if (preg_match_all('/^.+@.+\..+$/Ui', $email, $check, PREG_SET_ORDER)) {
            if (preg_match_all('/^mailto:(.+@.+\..+$)/Ui', $email, $matches, PREG_SET_ORDER)) {
                $this->email = $email;
                $this->sha1  = sha1($email);
            } else {
                $this->email = "mailto:" . $email;
                $this->sha1  = sha1("mailto:" . $email);
            }
        }
    }

    public function getContent(&$exp): string
    {
        $rdf = "<sioc:UserAccount rdf:about=\"" . clean($this->url, true) . "\">\n";
        if ($this->nick) {
            $rdf .= "    <sioc:name>" . clean($this->nick) . "</sioc:name>\n";
        }
        if ($this->email) {
            if ($exp->_export_email) {
                $rdf .= "    <sioc:email rdf:resource=\"" . $this->email . "\"/>\n";
            }
            $rdf .= "    <sioc:email_sha1>" . $this->sha1 . "</sioc:email_sha1>\n";
        }
        if ($this->role) {
            $rdf .= "    <sioc:has_function>\n";
            $rdf .= "        <sioc:Role>\n";
            $rdf .= "            <sioc:name>" . $this->role . "</sioc:name>\n";
            $rdf .= "        </sioc:Role>\n";
            $rdf .= "    </sioc:has_function>\n";
        }
        $rdf .= "    <sioc:account_of>\n";
        $rdf .= "        <foaf:Person>\n";
        if ($this->name) {
            $rdf .= "            <foaf:name>" . clean($this->name) . "</foaf:name>\n";
        }
        if ($this->email) {
            $rdf .= "            <foaf:mbox_sha1sum>" . $this->sha1 . "</foaf:mbox_sha1sum>\n";
        }
        if ($this->foaf_url) {
            $rdf .= "            <rdfs:seeAlso rdf:resource=\"" . $this->foaf_url . "\"/>\n";
        }
        $rdf .= "        </foaf:Person>\n";
        $rdf .= "    </sioc:account_of>\n";
        //if($this->sioc_url) { $rdf .= "            <rdfs:seeAlso rdf:resource=\"". $this->sioc_url ."\"/>\n"; }
        $rdf .= "</sioc:UserAccount>\n";

        return $rdf;
    }
}

/**
 * SIOC::DokuWikiContainer object
 *
 * Contains information about a wiki container
 */
class SIOCDokuWikiContainer extends SIOCObject
{

    private $type = 'sioc:Container';

    private $id = null;
    private $url = null;
    private $posts = array();
    private $subcontainers = array();
    private $has_parent = null;
    private $title = null;

    public function __construct($id, $url)
    {
        $this->id  = $id;
        $this->url = $url;
    }

    public function isWiki()
    {
        $this->type = 'sioct:Wiki';
    }

    public function addArticles($posts)
    {
        $this->posts = $posts;
    }

    public function addContainers($containers)
    {
        $this->subcontainers = $containers;
    }

    public function addTitle($title)
    {
        $this->title = $title;
    }

    public function addParent($id)
    {
        $this->_has_parent = $id;
    }

    public function getContent(&$exp): string
    {
        $rdf = '<' . $this->type . " rdf:about=\"" . normalizeUri(clean($this->url, true)) . "\" >\n";

        if ($this->title) {
            $rdf .= "    <sioc:name>" . clean($this->title) . "</sioc:name>\n";
        }

        if ($this->_has_parent) {
            $rdf .= "    <sioc:has_parent rdf:resource=\"" . normalizeUri(
                    $exp->siocURL('container', $this->_has_parent)
                ) . "\" />\n";
            // TODO: rdfs:label
        }

        foreach ($this->posts as $article) {
            // TODO: test permission before?
            $rdf .= "    <sioc:container_of rdf:resource=\"" . normalizeUri(
                    $exp->siocURL('post', $article['id'])
                ) . "\"/>\n";
            // TODO: inluding title/name
        }

        foreach ($this->subcontainers as $container) {
            $rdf .= "    <sioc:parent_of rdf:resource=\"" . normalizeUri(
                    $exp->siocURL('container', $container['id'])
                ) . "\"/>\n";
            // TODO: inluding title/name
        }

        $rdf .= "</" . $this->type . ">\n";
        return $rdf;
    }

}