<?php
class BaseObject {
    private $id = NULL;
    private $type;
    private $table = NULL;
    private $name;
    private $folder = 0;
    private $actions;
    private $title = "";
    private $instructions = "";
    private $instructions_top = false;
    private $created = 0;
    private $modified = 0;
    private $creator = 0;
    private $time = 0;
    private $time_button = 0;
    private $status = 'draft';
    private $security = 'private';
    private $rights = "";
    private $info = "";
    private $authors;
    private $build_error;
    private $position = 0;
    private $locked = 0;
    private $screenshot = NULL;
    
    function load($id) {
        $join = " ";
        if ($this->table) {
            $join = " LEFT JOIN " . DB_PREFIX . $this->getTable() . " t ON b.id=t.base_id ";
        }
        $data = query_row("SELECT * FROM " . DB_PREFIX . "base_object b" . $join . "WHERE b.id='{$id}'");
        if ($data) {
            $this->id = $id;
            $this->setTitle($data->title);
            $this->setInstructions($data->instructions);
            $this->setInstructionsTop($data->instructions_top);
            $this->setCreated($data->created);
            $this->setModified($data->modified);
            $this->setCreator($data->creator);
            $this->setTime($data->time);
            $this->setTimeButton($data->time_button);
            $this->setInfo($data->info);
            $this->setRights($data->rights);
            $this->setStatus($data->status);
            $this->setSecurity($data->security);
            $this->setFolder($data->folder);
            $this->setPosition($data->position);
            $this->setLocked($data->locked);
            $this->setScreenshot($data->screenshot);
            return $data;
        }
        return false;
    }
    
    function create() {
        $this->setCreator(get_logged_in_user()->getId());
        $q = query_row("SELECT count(id) as count FROM " . DB_PREFIX . "base_object WHERE folder=".$this->getFolder());
        $pos = ($q->count)+1;
        $insert = query_insert("INSERT INTO " . DB_PREFIX . "base_object (type, title, instructions, instructions_top, time, time_button, created, creator, info, rights, folder, position) values ('".mysql_real_escape_string($this->getType())."', '".mysql_real_escape_string($this->getTitle())."', '".mysql_real_escape_string($this->getInstructions())."', ".$this->getInstructionsTop().", ".$this->getTime().", ".$this->getTimeButton().", NOW(), ".$this->getCreator().", '".mysql_real_escape_string($this->getInfo())."', '".mysql_real_escape_string($this->getRights())."', ".$this->getFolder().", ".$pos.")");
        return $insert;
    }
    
    function save() {
        $update = query_update("UPDATE " . DB_PREFIX . "base_object SET title='".$this->getTitle()."', instructions='".mysql_real_escape_string($this->getInstructions())."', instructions_top=".$this->getInstructionsTop().", time=".$this->getTime().", time_button=".$this->getTimeButton().", modified=NOW(), info='".$this->getInfo()."', rights='".$this->getRights()."', screenshot=".$this->getScreenshot()." WHERE id=".$this->getId());
        return $update;
    }
    
    function copy($locked=false) {
        $crt = $this->create();
        if ($crt && $locked) {
            $lock = $this->lock($crt);
        }
        return $crt;
    }
    
    function lock($id=null) {
        if (!$id) $id = $this->getId();
        return query_update("UPDATE " . DB_PREFIX . "base_object SET locked=1 WHERE id=".$id);
    }
    
    function build($data) {
        if (!isset($data["title"]) || empty($data["title"])) {
      	    return false;
      	} else {
            $this->setTitle($data["title"]);
            if (isset($data["instructions"])) $this->setInstructions($data["instructions"]);
            if (isset($data["instructions_top"])) $this->setInstructionsTop($data["instructions_top"]);
            if (isset($data["time"])) $this->setTime($data["time"]);
            $this->setTimeButton(0);
            if (isset($data["time_button"])) $this->setTimeButton($data["time_button"]);
            if (isset($data["rights"])) $this->setRights($data["rights"]);
            if (isset($data["info"])) $this->setInfo($data["info"]);
            if (isset($data["folder"])) $this->setFolder($data["folder"]);
      	}
      	return true;
    }
    
    function delete() {
        if (is_numeric($this->getId()) && $this->getId() > 0) {
            if (is_admin() || $this->creator==get_logged_in_user()->getId()) {
                return query("DELETE FROM " . DB_PREFIX . "base_object WHERE id=".$this->getId());
            }
        }
        return false;
    }
    
    function reposition() {
        return query_update("UPDATE " . DB_PREFIX . "base_object SET position=position-1 WHERE folder=".$this->getFolder()." AND position>".$this->getPosition()." AND position>1");
    }
    
    function move_up() {
        $max_pos = query_row("SELECT count(id) as count FROM " . DB_PREFIX . "base_object WHERE folder=".$this->getFolder());
        if (query_update("UPDATE " . DB_PREFIX . "base_object SET position=position+1 WHERE folder=".$this->getFolder()." AND position=".($this->getPosition()-1)." AND position>0 AND position<".$max_pos->count)) {
            return query_update("UPDATE " . DB_PREFIX . "base_object SET position=position-1 WHERE folder=".$this->getFolder()." AND id=".$this->getId()." AND position>0");
        }
        return false;
    }
    
    function move_down() {
        $max_pos = query_row("SELECT count(id) as count FROM " . DB_PREFIX . "base_object WHERE folder=".$this->getFolder());
        if (query_update("UPDATE " . DB_PREFIX . "base_object SET position=position-1 WHERE folder=".$this->getFolder()." AND position=".($this->getPosition()+1)." AND position>2")) {
            return query_update("UPDATE " . DB_PREFIX . "base_object SET position=position+1 WHERE folder=".$this->getFolder()." AND id=".$this->getId()." AND position<".$max_pos->count." AND position>0");
        }
        return false;
    }

    function getScreenshot() {
        return $this->screenshot;
    }

    function setScreenshot($screenshot_id) {
        return $this->screenshot = $screenshot_id;
    }

    function takeScreenshot($screenshot_string) {
        if ($this->getScreenshot() > 0) {
            $screenshot = new Screenshot($this->getScreenshot());
        } else {
            $screenshot = new Screenshot();
        }
        $screenshot_id = $screenshot->saveScreenshot($screenshot_string, $this->getTitle());
        if ($screenshot_id) {
            $this->setScreenshot($screenshot_id);
            $this->save();
        }
    }
    
    public function getId() {
        return $this->id;
    }
    
    public function setId($id) {
        $this->id = $id;
    }
    
    public function getType() {
        return $this->type;
    }
    
    function setType($type) {
        $this->type = $type;
    }
    
    public function getTable() {
        return $this->table;
    }
    
    function setTable($table) {
        $this->table = $table;
    }
    
    public function getName() {
        return $this->name;
    }
    
    function setName($name) {
        $this->name = $name;
    }
    
    function getActions() {
        return $this->actions;
    }
    
    function setActions($actions) {
        $this->actions = $actions;
    }
    
    public function getLocked() {
        return $this->locked;
    }
    
    public function setLocked($locked) {
        if ($locked) {
            $this->locked = 1;
        } else {
            $this->locked = 0;
        }
    }
    
    public function getTitle() {
        return $this->title;
    }
    
    function setTitle($title) {
        $this->title = $title;
    }
    
    public function getInstructions() {
        return $this->instructions;
    }
    
    function setInstructions($desc) {
        $this->instructions = $desc;
    }
    
    public function getInstructionsTop() {
        return $this->instructions_top;
    }
    
    function setInstructionsTop($top) {
        if ($top) {
            $this->instructions_top = 1;
        } else {
            $this->instructions_top = 0;
        }
    }
    
    public function getCreated() {
        return $this->created;
    }
    
    function setCreated($created) {
        $this->created = $created;
    }
    
    public function getModified() {
        return $this->modified;
    }
    
    function setModified($modified) {
        $this->modified = $modified;
    }
    
    public function getCreator() {
        return $this->creator;
    }
    
    function setCreator($creator) {
        $this->creator = $creator;
    }
    
    public function getAuthors() {
        return $this->authors;
    }
    
    function setAuthors($authors) {
        $this->authors = $authors;
    }
    
    public function getTime() {
        return $this->time;
    }
    
    function setTime($time) {
        if (!$time) $time = 0;
        $this->time = $time;
    }
    
    public function getTimeButton() {
        return $this->time_button;
    }
    
    function setTimeButton($but) {
        if ($but) {
            $this->time_button = 1;
        } else {
            $this->time_button = 0;
        }
    }
    
    public function getRights() {
        return $this->rights;
    }
    
    function setRights($rights) {
        $this->rights = $rights;
    }
    
    public function getInfo() {
        return $this->info;
    }
    
    function setInfo($info) {
        $this->info = $info;
    }
    
    public function getStatus() {
        return $this->status;
    }
    
    function setStatus($status) {
        $this->status = $status;
    }
    
    public function getSecurity() {
        return $this->security;
    }
    
    function setSecurity($security) {
        $this->security = $security;
    }
    
    public function getFolder() {
        return $this->folder;
    }
    
    function setFolder($folder) {
        $this->folder = $folder;
    }
    
    public function getPosition() {
        return $this->position;
    }
    
    function setPosition($pos) {
        $this->position = $pos;
    }
    
    function addBuildError($err) {
        $this->build_error []= $err;
    }
    
    function getBuildError() {
        return $this->build_error;
    }
    
    function viewImage($id, $thumb=false, $mini = false) {
        $image = new Image($id);
        return $image->view($thumb, $mini);
    }
    
    public function isLocked() {
        return false;    
    }
    
    public function answer($data) {
        return true;    
    }
    
    function collect($examinees) {
        return array();
    }
    
    function buildFromXML($obj, $folder=0, $dir, $version=1) {
        $this->setFolder($folder);
        $this->setTitle($obj->title[0][0]);
        if (isset($obj->description[0][0])) {
            $this->setInstructions($obj->description[0][0]);
            if (isset($obj->descriptionIsTop) && $obj->descriptionIsTop[0][0] && $obj->descriptionIsTop[0][0] != "False") {
                $this->setInstructionsTop(1);
            } else {
                $this->setInstructionsTop(0);    
            }
        } else if (isset($obj->instructions[0][0])) {
            $this->setInstructions($obj->instructions[0][0]);
            $this->setInstructionsTop($obj->instructionsTop[0][0]);
        }
        $this->setAuthors($obj->author[0][0]);
        if (!empty($obj->rights[0][0])) $this->setRights(implode("\n", $obj->rights[0][0]));
        if (!empty($obj->info[0][0])) $this->setInfo(implode("\n", $obj->info[0][0]));
        $this->setCreated($obj->created[0][0]);
    }
    
    public function getBaseXML() {
        $xml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<object version=\"2\">\n";
        $xml .= "<type>".$this->getType()."</type>\n";
        $xml .= "<created><![CDATA[".$this->getCreated()."]]></created>\n";
        $xml .= "<title><![CDATA[".$this->getTitle()."]]></title>\n";
        $xml .= "<instructions><![CDATA[".$this->getInstructions()."]]></instructions>\n";
        $xml .= "<instructionsTop><![CDATA[".$this->getInstructionsTop()."]]></instructionsTop>\n";
        $xml .= "<author><![CDATA[".$this->getCreator()."]]></author>\n";
        $xml .= "<rights><![CDATA[".$this->getRights()."]]></rights>\n";
        $xml .= "<info><![CDATA[".$this->getInfo()."]]></info>\n";
        $xml .= $this->getObjectsXML();
        $xml .= "</object>\n";
        return $xml;
     }
    
     public function getNavigationTree() {
         $nav = array();
         $folder = $this->getFolder();
         $level = 2;
         $fd_level = 1;
         $f_level = 1;
         if ($folder>0) {
             $fd = query_row("SELECT id, title, folder FROM " . DB_PREFIX . "test_folder WHERE id=".$folder);
             if ($fd->folder) {
               $f = query_row("SELECT id, title, folder FROM " . DB_PREFIX . "folder WHERE id=".$fd->folder);
               $nav []= array('title' => $f->title, 'url'=>"library/Folder/".$f->id."/view", 'current'=>false, 'level'=>$f_level);
               $fd_level = 2;
               $level = 3;
             }
             $nav []= array('title' => $fd->title, 'url'=>"library/TestFolder/".$folder."/view", 'current'=>false, 'level'=>$fd_level);
         }
         
         $nav []= array('title' => $this->getTitle(), 'url'=>"library/".$this->getType()."/".$this->getId()."/view", 'current'=>true, 'level'=>$level);
         return $nav;
     }

    public function arrayCoordinatesAsNr($coordinates, $table_width) {
       return $table_width * $coordinates[0] + $coordinates[1];
    }

    public function timer($data) {
        $load = 0;
        $start = 0;
        $end = 0;
        $submit= 0;
        if (isset($data["timer"]) && !empty($data["timer"])) {
            $t = json_decode($data["timer"], true);
            if (isset($t["load"])) {
                $load = $t["load"];
            }
            if (isset($t["start"])) {
                $start = $t["start"];
            }
            if (isset($t["end"])) {
                $end = $t["end"];
            }
            if (isset($t["submit"])) {
                $submit = $t["submit"];
            }
        }
        return array("load"=>$load, "start"=>$start, "end"=>$end, "submit"=>$submit);
    }

}
?>