<?php

/**
 * @Mode('mode' = 'view', 'title' = 'View', 'roles' = {'authenticated'}, 'valid' = {'isAssignedTask', 'validIsSecured'})
 * @Mode('mode' = 'copy', 'title' = 'Copy', 'roles' = {'authenticated'}, 'valid' = {'validIsSecured'}, 'exclude_from_nav' = true, template='copings.html')
 * @Mode('mode' = 'edit', 'title' = 'Edit', 'roles'= {'authenticated'}, 'valid' = {'isOwner', 'validIsDraft'})
 * @Mode('mode' = 'compile', 'title' = 'Compile', 'roles'= {'authenticated'}, 'valid' = {'isOwner', 'validIsDraft'})
 * @Mode('mode' = 'assignments', 'title' = 'Assignments', 'roles'= {'member','schooladm'}, valid={'validIsFinal'}, template='assignments.html')
 * @Mode('mode' = 'solve', 'title' = 'Solve', 'roles' = {'authenticated'}, 'exclude_from_nav' = true, 'valid' = {'isAssignedToMe'})
 * @Mode('mode' = 'answer', 'title' = 'Answer', 'roles' = {}, 'exclude_from_nav' = true, 'valid' = {'validIsPublic'})
 * @Mode('mode' = 'answers', 'title' = 'Answers', 'roles' = {'authenticated'}, 'valid' = {'isAssigner', 'validIsFinal'}, template='answers.html')
 * @Mode('mode' = 'exhibitions', 'title' = 'Exhibitions', 'roles' = {'member'}, 'valid' = {'isAssigner', 'validIsFinal', 'issetAid'}, template='exhibitions.html', 'exclude_from_nav' = true)
 * @Mode('mode' = 'settings', 'title' = 'Settings', 'roles' = {'authenticated'}, 'valid' = {'isOwner', 'validHasSettings'}, template='settings.html')
 * @Mode('mode' = 'comments', 'title' = 'Comments', 'roles' = {'authenticated'}, 'valid' = {'validIsSecured'}, template='comments.html', 'exclude_from_nav' = 1)
 * @MenuItem('title' = 'Home Folder', 'group' = 'resource', 'roles' = {'authenticated'}, 'page' = '?pid=MyFolder')
 * */
class BaseResource extends Assignments {

    private $resourceID;
    private $deleted;
    private $type;
    private $folderid;
    private $title;
    private $userID;
    private $created;
    private $modified;
    private $description;
    private $keywords;
    private $authors;
    private $rating;
    private $state = 'draft';
    private $security = 'public';
    protected $answer_object;
    private $waramuUID;

    function __construct($rid) {
        // common data loading
        global $kdb;
        $this->kdb = $kdb; //mida kuradit!!!
        if ( is_numeric($rid)) {
            $commData = $kdb->getCommonData($rid);
            $this->setData($commData);
        } else {
            $this->newObject();
        }
    }

    function setData($commData) {
        $this->setResourceID($commData['resourceID']);
        $this->setDeleted($commData['deleted']);
        $this->setFolderid($commData['folderid']);
        $this->setTitle($commData['title']);
        $this->setUserID((int)$commData['userID']);
        $this->setCreated($commData['created']);
        $this->setModified($commData['modified']);
        $this->setDescription($commData['description']);
        $this->setKeywords($commData['keywords']);
        $this->setAuthors($commData['authors']);
        $this->setRating($commData['rating']);
        $this->setState($commData['state']);
        $this->setSecurity($commData['security']);
        $this->waramuUID = $commData['waramuUID'];
    }

    function newObject() {
        global $user;
        $this->setResourceID("new");
        $this->setDeleted(0);
        if ( isset($_GET['folderid']) && is_numeric($_GET['folderid']) ) {
            $this->setFolderid($_GET['folderid']);
        } else if ( isset($_SESSION['folderid']) && is_numeric($_SESSION['folderid']) ) {
            $this->setFolderid($_SESSION['folderid']);
        }
        $this->setTitle("");
        $this->setUserID((int)$user->getId());
        $this->setCreated('0000-00-00 00:00:00');
        $this->setModified('0000-00-00 00:00:00');
        $this->setDescription("");
        $this->setKeywords("");
        $this->setAuthors($this->getFullname($this->getUserID()));
        $this->setRating(0);
    }

    function updateData($commData) {
        $this->setTitle($commData['title']);
        $this->setDescription($commData['description']);
        $this->setKeywords($commData['keywords']);
        $this->setAuthors($commData['authors']);
    }
    
    public function getImages() {
        //return $this->kdb->getResourcesByType("Image", array("userID"=>$this->user->getId()));
        return $this->kdb->getResourcesByType("Image", array("security"=>"'public'"));
    }
    
    public function getVAuthor() {
        global $user;
        $ud = $user->getDetails();
        $fval = "BEGIN:VCARD\n";
        $fval .= "VERSION:3.0\n";
        $fval .= "N:".$ud->getLastname().";".$ud->getFirstname().";;;\n";
        $fval .= "FN:".$ud->getFullname()."\n";
        $fval .= "ORG:".$user->getSchool()."\n";
        $fval .= "EMAIL;TYPE=internet,pref:".$ud->getEmail()."\n";
        $fval .= "END:VCARD\n";
        return $fval;
    }


    protected function save() {
        // save
        if ( $this->getResourceID() == 'new' ) {
            $sql = "INSERT INTO resources (type, folderid, title, description, keywords, authors, userID) values ('%s', %s, '%s', '%s', '%s', '%s', %s)";
            $sql = sprintf($sql, 
                $this->getType(),
                $this->getFolderid() ? $this->getFolderid() : 'NULL',
                $this->getTitle(),
                $this->getDescription(),
                $this->keywords,
                $this->getFullname($this->getUserID()),
                $this->getUserID());
            $this->kdb->query($sql);
            $dbuid = mysql_insert_id();
            $this->setResourceID($dbuid);
            $this->kdb->query("INSERT INTO language (resourceID, language) values (".$dbuid.", 'et')");
        } else {
            $sql = "UPDATE resources SET title='%s', description='%s', keywords='%s', authors='%s', modified=NOW() WHERE resourceID=%s";
            $sql = sprintf($sql,
                $this->getTitle(),
                $this->getDescription(),
                $this->keywords,
                $this->authors,
                $this->getResourceID()
            );
            $this->kdb->query($sql);
        }
        if (isset($_POST)) {
            $this->setMetaData($_POST);
        }
        $this->updateFulltext();
    }
    
    protected function copy() {
        global $user;
        $sql = "INSERT INTO resources (type, folderid, title, description, keywords, authors, userID) values ('%s', %s, '%s', '%s', '%s', '%s', %s)";
        $fid = 'NULL';
        if ( isset($_POST['folderid']) && is_numeric($_POST['folderid']) && $_POST['folderid']>0) {
            $fid = $_POST['folderid'];
        }
        $sql = sprintf($sql, 
            $this->getType(),
            $fid,
            $this->getTitle(),
            $this->getDescription(),
            $this->keywords,
            $this->getAuthors(),
            $user->getID());
        $this->kdb->query($sql);
        $dbuid = mysql_insert_id();
        $this->setResourceID($dbuid);
        $this->updateFulltext();
    }

    protected function makeResourceFromXML($xml) {
        global $user;
        $sql = "INSERT INTO resources (type, folderid, title, description, keywords, authors, userID) values ('%s', %s, '%s', '%s', '%s', '%s', %s)";
        $fid = 'NULL';
        if ( isset($_POST['folderid']) && is_numeric($_POST['folderid']) && $_POST['folderid']>0) {
            $fid = $_POST['folderid'];
        }
        $sql = sprintf($sql, 
            $xml['type'],
            $fid,
            $xml['title'],
            $xml['description'],
            $xml['keywords'],
            $xml['authors'],
            $user->getID());
        $this->kdb->query($sql);
        $dbuid = mysql_insert_id();
        $this->setResourceID($dbuid);
        $this->setMetaData($xml, true);
        $this->updateFulltext();
    }

    protected function updateFulltext() {
        $sql_del = "DELETE FROM fti WHERE resourceID=".$this->getResourceID();
        $this->kdb->query($sql_del);
        $sql_fti = "INSERT INTO fti values (%s, '%s')";
        $fti = $this->getTitle()." ".$this->getDescription()." ".$this->getKeywords();
        if ( method_exists($this, "fulltext") ) {
            $fti .= " ".$this->fulltext();
        }
        $this->kdb->query(sprintf($sql_fti, $this->getResourceID(), $fti));
    }
    
    protected function isAnswerer() {
        $aobj = $this->getAnswrObject();
        if ($aobj->getUserID()==$this->user->getID()) {
            return true;
        }
        return false;
    }

    public function addJS() {
        foreach ($this->js as $j) {
            $this->krihvel->out("head", '<script type="text/javascript" src="plugins/'.$this->getType().'/'.$j.'"></script>');
        }
        if ( $this->mode == "assignments" ) {
                $header = '<script type="text/javascript" src="skins/krihvel/js/calendar.js"></script><script type="text/javascript">window.addEvent("domready", function() { myCal = new Calendar({ date1: "Y-m-d", date2: "Y-m-d" }, { offset: 1, pad: 0, direction: .5, days: ["'.gettext("Sunday").'","'.gettext("Monday").'","'.gettext("Tuesday").'","'.gettext("Wednesday").'","'.gettext("Thursday").'","'.gettext("Friday").'","'.gettext("Saturday").'"], months: ["'.gettext("January").'","'.gettext("February").'","'.gettext("March").'","'.gettext("April").'","'.gettext("May").'","'.gettext("June").'","'.gettext("July").'","'.gettext("August").'","'.gettext("September").'","'.gettext("October").'","'.gettext("November").'","'.gettext("December").'"] }); });</script>';
                $this->krihvel->out("head", $header);
        }
    }

    public function addCSS() {
        foreach ($this->css as $c) {            
            $this->krihvel->out("head", '<link rel=StyleSheet href="plugins/'.$this->getType().'/'.$c.'" type="text/css" media=screen>');
        }
    }

    public function getFullname($uid=false) {  
        if ($uid) {
            $userid = $uid;
        } else {
            if ($this->mode=='answer') {
                $aob = $this->getAnswerObject();
                $userid = $aob->getUserID();
            } else {
                $userid = $this->getUserID();
            }
        }
        $user = new User((int)$userid);
        return $user->getDetails()->getFullnameDisplay();
    }

    protected function setResourceID($rid) {
        $this->resourceID = $rid;
    }

    public function getResourceID() {
        return $this->resourceID;
    }

    protected function setDeleted($d) {
        $this->deleted = $d;
    }

    public function getDeleted() {
        return $this->deleted;
    }

    public function getType() {
        return $this->dtype;
    }

    protected function setFolderid($f) {
        $this->folderid = $f;
    }

    public function getFolderid() {
        return $this->folderid;
    }

    protected function setTitle($t) {
        $this->title = $t;
    }

    public function getTitle() {
        return $this->title;
    }

    protected function setUserID($u) {
        $this->userID = $u;
    }

    public function getUserID() {
        return $this->userID;
    }

    public function getState() {
        return $this->state;
    }

    public function setState($val) {
        if ( $val != 'draft' && $val != 'final' ) {
            throw new Exception('hack hack');
        }
        $this->state = $val;
    }

    public function validIsDraft() {
        if ($this->getState() == 'draft' ) {
            return 0;
        }
        return 1;
    }

    public function validIsFinal() {
        if ($this->getState() == 'final' ) {
            return 0;
        }
        return 1;
    }
    
    public function validIsMyDraft() {        
        if (!$this->isOwner()) {
            return 0; 
        }
        if (!$this->validIsDraft()){
            return 1;  
        }
        return 0;
    }
    
    public function validIsMyPrivate() {
        if (!$this->isOwner()) {
            return 0; 
        }
        if (!$this->validIsPrivate()){
            return 1;  
        }
        return 0;
    }
    
    public function validIsSecured() {
        if (!$this->validIsMyDraft() && !$this->validIsMyPrivate()){
            return 0;  
        }
        return 1;
    }
    
    public function validIsPrivate() {
        if ($this->getSecurity() == 'private' ) {
            return 0;
        }
        return 1;
    }
    
    public function validHasSettings() {
        if (!in_array($this->getType(), array('gallery'))) {
            return 0;
        }
        return 1;
    }
    
    public function validIsPublic() {
        global $user, $krihvel;
        $roles = $user->getRoles();
        if ( $roles["authenticated"] > 0 ) {
            return 0;
        } else {
            $aob = $this->getAnswerObject();
            if ( $aob->getExponate()) {
                return 0;
            }
        }
        return 1;
    }
    
    public function issetAid() {
        if ( isset($_GET['aid']) ) {
            return 0;
        }
        return 1;
    }
    
    public function getSecurity() {
        return $this->security;
    }

    public function setSecurity($val) {
        if ( $val != 'public' && $val != 'private' ) {
            throw new Exception('hack hack');
        }
        $this->security = $val;
    }

    public function setWaramuUID($val) {
        $this->waramuUID = $val;
        $this->kdb->query("UPDATE resources SET waramuUID='".$val."' WHERE resourceID=".$this->getResourceID());
    }

    public function getWaramuUID() {
        return $this->waramuUID;
    }

    protected function setCreated($c) {
        $this->created = $c;
    }

    public function getCreated() {
        return $this->created;
    }

    public function getFormattedCreated() {
        date_default_timezone_set('UTC');
        if ($this->mode=='answer') {
            $aob = $this->getAnswerObject();
            $d = strtotime($aob->getCreated());
        }if ($this->getResourceID()=="new") {
            $d = strtotime("NOW");
        }else {
            $d = strtotime($this->created);
        }
        return strftime("%e %B %G", $d);
    }
    
    public function getFormattedToday() {
        date_default_timezone_set('UTC');
        $d = strtotime("NOW");
        return strftime("%e %B %G", $d);
    }

    protected function setModified($m) {
        $this->modified = $m;
    }

    public function getModified() {
        return $this->modified;
    }

    protected function setDescription($d) {
        $this->description = $d;
    }

    public function getDescription() {
        return $this->description;
    }

    protected function setKeywords($kws) {
        $kws_raw = preg_split("/,/", $kws);
        $kws = ",";
        foreach ($kws_raw as $kw_raw){
            $kw = trim($kw_raw);
            $kws .= mb_strtolower($kw, "UTF-8").",";
        }
        $this->keywords = $kws;
    }

    public function getKeywords() {
        $k = trim($this->keywords, ",");
        $kws_raw = preg_split("/,/", $k);
        $kws = implode(", ", $kws_raw);
        return $kws;
    }
    
    protected function setAuthors($kws) {
        $kws_raw = preg_split("/,/", $kws);
        $kws = ",";
        foreach ($kws_raw as $kw_raw){
            $kw = trim($kw_raw);
            $kws .= $kw.",";
        }
        $this->authors = $kws;
    }

    public function getAuthors() {
        $k = trim($this->authors, ",");
        $kws_raw = preg_split("/,/", $k);
        $kws = implode(", ", $kws_raw);
        return $kws;
    }
    
    public function getAnswerObject() {
        if ($this->answer_object != NULL) {
            return $this->answer_object;
        }
        $at = $this->getType()."Answer";
        $aob = NULL;
        if (isset($_GET['aid']) && is_numeric($_GET['aid'])) {
            $aob = $this->kdb->getAnswerByID($_GET['aid'], $at);
        } else if (isset($_POST['aid']) && is_numeric($_POST['aid'])) {
            $aob = $this->kdb->getAnswerByID($_POST['aid'], $at);
        } else {
            $aob = $this->kdb->getAnswerByLatest($this->getResourceID(), $this->user->getId(), $at);
        }
        $this->answer_object = $aob;
        return $aob;
    }
    
    public function getAnswers() {
        $assid = false;
        $at = $this->getType()."Answer";
        if (isset($_GET['assignmentid'])) {
            $assid = $_GET['assignmentid'];
            return $this->kdb->getAnswerByRID($this->getResourceId(), array('assignmentID'=>$assid, 'order'=>array('by'=>'created', 'order'=>'ASC')), $at);
        }
        return $this->kdb->getAnswerByRID($this->getResourceId(), array(), $at);   
    }
    
    public function getNumberOfAnswers() {
        return $this->kdb->hasAnswers($this->getResourceId());   
    }
    
    public function getOverallRating() {
        $rating = $this->getRating();
        return $this->getRatingStars($rating);
    }
    
    public function getMyRating() {
        $rating = $this->kdb->getRatingByResource($this->getResourceId());
        if ($rating) {
            return $rating;
        }
        return false;
    }
    
    public function getRComments() {
        return $this->kdb->getCommentsByResource($this->getResourceId());
    }
    
    public function getRatingStars($rating) {
        $stars = array(0,0,0,0,0);
        for ($r=0; $r<$rating; $r++) {
            if ($rating>$r) {
                $stars[$r] = 1;
                if ($rating-$r<1) {
                    $stars[$r] = 2;
                }
            }
        }  
        return $stars;
    }
    
    public function getRating() {
        return $this->rating;  
    }
    
    protected function setRating($r) {
        $this->rating = $r;  
    }
    
    public function getFolders() {
        global $kdb, $user;
        $ret = $kdb->query("SELECT * FROM folders WHERE userID=".$user->getId());
        $res = array();
        while ( $row = mysql_fetch_array($ret) ) {
            $res[] = $row;
        }
        return $res;
    }

    function getCurrentFolderID() {
        return $this->getFolderid();
    }
    
    function getMyExhibitions() {
        global $kdb, $user;
        $q = "SELECT * FROM exhibitions WHERE security='public' AND userID=".$user->getId();
        $ret = $kdb->query($q);
        $exs = array();
        while ( $row = mysql_fetch_array($ret) ) {
            $exs []= $row;
        }
        return $exs;
    }
    
    function getNumberOfExponates($exhib) {
        $ret = $this->kdb->query("SELECT exponateID FROM exponates WHERE exhibitionID=".$exhib);
        return mysql_num_rows($ret);
    }
    
    function getIsExponated($exhib) {
        if ( isset($_GET['aid']) ) {
            $ret = $this->kdb->query("SELECT * FROM exponates WHERE answerID=".$_GET['aid']." AND exhibitionID=".$exhib);
            while ( $row = mysql_fetch_array($ret) ) {
                return true;
            }
        }
        return false;
    }
    
    /** 
     * @Secured('roles' = {'member'}, 'valid' = {}) 
     * */
    function actionSetExponate() {
        $expids = array();
        if ( isset($_POST['exponate']) && is_array($_POST['exponate']) ) {
            $expids = array_keys($_POST['exponate']);
        }
        $aid = $_POST['aid'];        
        $ret = $this->kdb->query("SELECT * FROM exponates WHERE answerID=".$aid);
        $exhibs = array();
        while ( $row = mysql_fetch_array($ret) ) {
            if (in_array($row['exhibitionID'], $expids)) {
                $exhibs []= $row['exhibitionID'];
            } else {
                $this->kdb->query("DELETE from exponates WHERE exhibitionID=".$row['exhibitionID']." AND answerID=".$aid);
                $this->kdb->query("UPDATE answers SET exponate=0 WHERE answerID=".$aid);
            }
        }
        foreach ($expids as $expid) {
            if (!in_array($expid, $exhibs)) {
                $this->kdb->query("INSERT INTO exponates (exhibitionID, answerID) VALUES (".$expid.", ".$aid.")");
                $this->kdb->query("UPDATE answers SET exponate=1 WHERE answerID=".$aid);
            }
        }
        $_SESSION['krihvel_notice'] = gettext("Exponates set");
        return array('rid' => $this->getResourceID(), 'mode' => "answer", 'aid' => $_POST['aid']);
    }
    
    /** 
     * @Secured('roles' = {'member'}, 'valid' = {}) 
     * */
    public function actionGrade() {
        if (isset($_POST['grade'])) {
            $sql = "UPDATE answers SET grade='%s', comment='%s' WHERE answerID=%s";
            $this->kdb->query(sprintf($sql, $_POST['grade'], $_POST['comment'], $_POST['aid']));
        }
        $_SESSION['krihvel_notice'] = gettext("Grade saved");
        return array('rid' => $this->getResourceID(), 'mode' => "answer", 'aid' => $_POST['aid']);
    }
    
    /** 
     * @Secured('roles' = {'member'}, 'valid' = {}) 
     * */
    public function actionExhibitions() {        
        return array('rid' => $this->getResourceID(), 'mode' => "exhibitions", 'aid' => $_POST['aid']);
    }
    
    /** 
     * @Secured('roles' = {'member'}, 'valid' = {}) 
     * */
    public function actionAddToExponates() {
        $this->kdb->query(sprintf("UPDATE answers SET exponate=1 WHERE answerID=".$_POST['aid']));
        $_SESSION['krihvel_notice'] = gettext("Answer is now in exhibition");
        return array('rid' => $this->getResourceID(), 'mode' => "answer", 'aid' => $_POST['aid']);
    }
    
    /** 
     * @Secured('roles' = {'member'}, 'valid' = {}) 
     * */
    public function actionRemoveFromExponates() {
        $this->kdb->query(sprintf("UPDATE answers SET exponate=0 WHERE answerID=".$_POST['aid']));
        $_SESSION['krihvel_notice'] = gettext("Answer removed from exhibition");
        return array('rid' => $this->getResourceID(), 'mode' => "answer", 'aid' => $_POST['aid']);
    }

    public function isOwner() {
        if ( isset($_GET['debug'])) {
            $this->krihvel->out("debug", "Object owner: ".$this->getUserID()." user id:". $this->user->getId());
        }
        if ( $this->getUserID() == $this->user->getId() ) {
            return 0;
        }
        return 1;
    }
    
    public function getMDFDB($md) {
        $tgs = array();
        if (is_numeric($this->getResourceID())) {
            $ret = $this->kdb->query("SELECT ".$md." FROM ".$md." WHERE resourceID=".$this->getResourceID());            
            while ( $row = mysql_fetch_array($ret) ) {
                $tgs []= $row[$md];
            }
        }
        return $tgs;
    }
    
    protected function setMetaData($pd, $xml=false) {
        foreach (array('targetgroup','language','resourcetype','lre','difficulty') as $md) {
            if (isset($pd[$md])) {
                if (!$xml) {
                    $this->kdb->query("DELETE from ".$md." WHERE resourceID=".$this->getResourceID());
                    $mda = $pd[$md];
                } else {
                    $mda = unserialize($pd[$md]);
                }
                foreach ($mda as $tg) {
                    $this->kdb->query("INSERT INTO ".$md." (resourceID, ".$md.") values (".$this->getResourceID().", '".$tg."')");
                }
            }
        }
    }
    
    public function useImage($iid) {
        if ($iid) {
            $q = "INSERT INTO usedimages (resourceID, imageUID) SELECT ".$this->getResourceID().", '".$iid."' FROM dual WHERE not exists (SELECT * FROM usedimages WHERE usedimages.resourceID = ".$this->getResourceID()." AND usedimages.imageUID = '".$iid."')";
            $this->kdb->query($q);
        }
    }
    
    public function removeUsedImages() {
        $q = "DELETE FROM usedimages WHERE resourceID=".$this->getResourceID();
        $this->kdb->query($q);
    }
    
    function getUsedImages() {
        $q = "SELECT imageUID FROM usedimages WHERE resourceID=".$this->getResourceID();
        $ret = $this->kdb->query($q);
        $uids = array();
        while ( $row = mysql_fetch_array($ret) ) {
            $uids []= $row['imageUID'];
        }
        return $uids;
    }

    /**
     * @Secured('roles' = {'authenticated'}, 'valid' = {'isOwner'})
     * */
    public function actionSaveSettings() {
        if (isset($_POST['status'])) {
            $this->setState($_POST['status']);
        }
        $this->setSecurity($_POST['security']);
        $this->kdb->query("UPDATE resources SET state='".$this->getState()."', security='".$this->getSecurity()."' WHERE resourceID=".$this->getResourceID());
        $_SESSION['krihvel_notice'] = gettext("Saved");
        if ( !strcmp($this->getState(), 'final') && !strcmp($this->getSecurity(), 'public') && !in_array($this->getType(),array('link'))) {
            return array('rid' => $this->getResourceID(), 'mode' => 'assignments');
        }
        return array('rid' => $this->getResourceID(), 'mode' => 'view');  
    }
    
    /**
     * @Secured('roles' = {'member','manager'}, 'valid' = {'isOwner'})
     * */
    public function actionDeleteFromWaramu() {
        $_SESSION['krihvel_notice'] = gettext("Deletion from Waramu failed");
        if ( $this->getWaramuUID() ) {
            global $user;
            $au = '<info><appUser>'.$user->getUsername().'</appUser></info>';
            require_once("Waramu.php");
            $ws = new Waramu();
            $ws->connect();
            $r = $ws->deleteResource($au, $this->getWaramuUID());
            $ws->disconnect();
            $this->setWaramuUID(NULL);
            $_SESSION['krihvel_notice'] = gettext("Resource deleted from Waramu");
        } else {
            $_SESSION['krihvel_notice'] = gettext("Resource not in Waramu");
        }
        return array('rid' => $this->getResourceID());
    }

    /**
     * @Secured('roles' = {'member','manager'}, 'valid' = {'isOwner'})
     * */
    public function actionExportToWaramu() {
        $_SESSION['krihvel_notice'] = gettext("Export to Waramu failed");
        if ( !$this->getWaramuUID() ) {
            global $user;
            $au = '<info><appUser>'.$user->getUsername().'</appUser></info>';
            require_once("Waramu.php");
            $ws = new Waramu();
            $ws->connect();
            $r = $ws->newResource($au, $this->toWaramu());
            if ( is_int($r) ) { // error
            } else {
                $this->setWaramuUID($r);
            }
            $zipcontent = $this->makeThisAsZipFile();
            $ares = $ws->addAttachment($au, $this->getWaramuUID(), $zipcontent, $this->getTitle().'.zip');
            $ws->disconnect();
            $_SESSION['krihvel_notice'] = gettext("Resource exported to Waramu");
        } else {
            $_SESSION['krihvel_notice'] = gettext("Resource already in Waramu");
        }
        return array('rid' => $this->getResourceID());
    }

    public function toWaramu() {
        $xml = '<?xml '.WARAMU_XML_VERSION.' '.WARAMU_XML_ENCODING.' ?>';
        $xml .= '<data '.WARAMU_XMLNS.'>';
        $xml .= '<k_type>'.$this->dtype.'</k_type>';
        $xml .= '<title>'.$this->getTitle().'</title>';
        $xml .= '<desc>'.$this->getDescription().'</desc>';
        $xml .= '<keywords>'.$this->getKeywords().'</keywords>';
        $xml .= '<vauthor>'.$this->getVAuthor().'</vauthor>';
        //$xml .= '<min>0</min>';   // agerange minimum
        //$xml .= '<max>99</max>';   // agerange maximum
        $xml .= '<targetgroup>'.$this->getMDFDB('targetgroup').'</targetgroup>';
        $xml .= '<lotype>'.$this->getMDFDB('resourcetype').'</lotype>';
        $xml .= '<license>http://creativecommons.org/licenses/by-sa/3.0/</license>';
        $xml .= '<language>'.$this->getMDFDB('language').'</language>';
        $xml .= '<difficulty>'.$this->getMDFDB('difficulty').'</difficulty>';
        $xml .= '<LREkeywords>'.$this->getMDFDB('lre').'</LREkeywords>';
        $xml .= '</data>';
        return $xml;
    }
    
    public function makeBaseXML() {
        $xml  = '<type><![CDATA['.$this->dtype.']]></type>\n';
        $xml .= '<classname><![CDATA['.$this->cname.']]></classname>\n';
        $xml .= '<title><![CDATA['.$this->getTitle().']]></title>\n';
        $xml .= '<description><![CDATA['.$this->getDescription().']]></description>\n';
        $xml .= '<authors><![CDATA['.$this->authors.']]></authors>\n';
        $xml .= '<keywords><![CDATA['.$this->keywords.']]></keywords>\n';
        $xml .= '<author><![CDATA['.$this->getFullname().']]></author>\n';
        $xml .= '<created><![CDATA['.$this->getCreated().']]></created>\n';
        $xml .= '<targetgroup><![CDATA['.serialize($this->getMDFDB('targetgroup')).']]></targetgroup>\n';
        $xml .= '<language><![CDATA['.serialize($this->getMDFDB('language')).']]></language>\n';
        $xml .= '<lre><![CDATA['.serialize($this->getMDFDB('lre')).']]></lre>\n';
        $xml .= '<difficulty><![CDATA['.serialize($this->getMDFDB('difficulty')).']]></difficulty>\n';
        $xml .= '<resourcetype><![CDATA['.serialize($this->getMDFDB('resourcetype')).']]></resourcetype>\n';
        $xml .= '<license><![CDATA[http://creativecommons.org/licenses/by-sa/3.0/]]></license>\n';
        return $xml;
    }
    
    public function makeImageObjectsXml($rid) {
        $xml = '<?xml version="1.0" encoding="UTF-8"?>\n';
        $xml .= '<image>\n';
        $iobs = $this->kdb->getResourcesByType("image", array('resourceID'=>$rid), 1);
        if ($iobs) {
            $iob = $iobs[0];
            $xml .= '<type><![CDATA['.$iob->dtype.']]></type>\n';
            $xml .= '<classname><![CDATA['.$iob->cname.']]></classname>\n';
            $xml .= '<title><![CDATA['.$iob->getTitle().']]></title>\n';
            $xml .= '<description><![CDATA['.$iob->getDescription().']]></description>\n';
            $xml .= '<authors><![CDATA['.$iob->authors.']]></authors>\n';
            $xml .= '<keywords><![CDATA['.$iob->keywords.']]></keywords>\n';
            $xml .= '<author><![CDATA['.$iob->getFullname().']]></author>\n';
            $xml .= '<created><![CDATA['.$iob->getCreated().']]></created>\n';
            $xml .= '<targetgroup><![CDATA['.serialize($iob->getMDFDB('targetgroup')).']]></targetgroup>\n';
            $xml .= '<language><![CDATA['.serialize($iob->getMDFDB('language')).']]></language>\n';
            $xml .= '<lre><![CDATA['.serialize($iob->getMDFDB('lre')).']]></lre>\n';
            $xml .= '<difficulty><![CDATA['.serialize($iob->getMDFDB('difficulty')).']]></difficulty>\n';
            $xml .= '<resourcetype><![CDATA['.serialize($iob->getMDFDB('resourcetype')).']]></resourcetype>\n';
            $xml .= '<license><![CDATA[http://creativecommons.org/licenses/by-sa/3.0/]]></license>\n';
            $xml .= $iob->makeXML();
        }
        $xml .= '</image>\n';
        return $xml;
    }
    
    public function makeThisAsZipFile() {
        $xml = '<?xml version="1.0" encoding="UTF-8"?>\n';
        $xml .= '<resource>\n';
        $xml .= $this->makeBaseXML();
        $xml .= $this->makeXML();
        $xml .= '</resource>\n';
        $contains_images = $this->getUsedImages();
        $zip = new ZipArchive();
        $filename = tempnam(sys_get_temp_dir(), 'Krihvel');
        if ( $zip->open($filename, ZIPARCHIVE::OVERWRITE) !== TRUE ) {
            $_SESSION['krihvel_notice'] = gettext("Cannot open"). " <$filename>\n";
            return array('rid' => $this->getResourceID(), 'mode' => 'settings');
        }
        $zip->addFromString("resource_data.xml", $xml);
        if ($contains_images) {
            foreach ($contains_images as $imid) {
                $res = $this->kdb->query("SELECT * FROM images WHERE imageUID='".$imid."'");
                $im = mysql_fetch_array($res);
                $image = $zip->addFile(IMAGES_PATH.$im['resourceID'], $im['imageName']);
                $zip->addFromString($im['imageName'].".xml", $this->makeImageObjectsXml($im['resourceID']));
            }
        }
        $zip->close();
        $zc = file_get_contents($filename);
        unlink($filename);
        return $zc;
    }
    
    /**
     * @Secured('roles' = {'authenticated'}, 'valid' = {'isOwner'})
     * */
    public function actionExportResource() {
        $xml = '<?xml version="1.0" encoding="UTF-8"?>\n';
        $xml .= '<resource>\n';
        $xml .= $this->makeBaseXML();
        $xml .= $this->makeXML();
        $xml .= '</resource>\n';
        $contains_images = $this->getUsedImages();
        $zip = new ZipArchive();
        $filename = tempnam(sys_get_temp_dir(), 'Krihvel');
        if ( $zip->open($filename, ZIPARCHIVE::OVERWRITE) !== TRUE ) {
            $_SESSION['krihvel_notice'] = gettext("Cannot open"). " <$filename>\n";
            return array('rid' => $this->getResourceID(), 'mode' => 'settings');
        }
        $zip->addFromString("resource_data.xml", $xml);
        if ($contains_images) {
            foreach ($contains_images as $imid) {
                $res = $this->kdb->query("SELECT * FROM images WHERE imageUID='".$imid."'");
                $im = mysql_fetch_array($res);
                $image = $zip->addFile(IMAGES_PATH.$im['resourceID'], $im['imageName']);
                $zip->addFromString($im['imageName'].".xml", $this->makeImageObjectsXml($im['resourceID']));
            }
        }
        $zip->close();
        header("Content-Type: application/zip");
        header("Content-Length: " . filesize($filename));
        header("Content-Disposition: attachment; filename=\"".$this->getTitle().".zip\"");
        unlink($filename);
    }
    
    /**
     * @Secured(roles={'authenticated'})
     * */
    function actionCancel() {
        $_SESSION['krihvel_notice'] = gettext("Action cancelled!");
        if ( in_array($this->getType(), array('link', 'image')) ) {
            if (isset($_SESSION['folderid']) && $_SESSION['folderid']!="NULL") {
                return array('pid' => 'Folder', 'fid' => $_SESSION['folderid']);    
            }
            return array('pid' => 'MyFolder');
        }
        return array('pid' => 'TaskCreator');
    }
    
}

?>