<?php
class TimeelapseTask extends BaseTest{
    private $elements;
    private $jsonelements;
    private $tasks;
    
    function __construct($id = NULL) {
        $this->setType("TimeelapseTask");
        $this->setName("Time Elapse Task");
        $this->setTable("timeelapse_task");
        $this->setActions(array("view"=>_("View"), "edit"=>_("Edit"), "compose"=>_("Compose")));
        if ($id) {
            $data = $this->load($id);
            if ($data) {
                $this->setElements(json_decode($data->elements));
                $this->setJsonElements($data->elements);
                $this->setTasks($data->tasks);
            }
        }

    }
    
    function create() {
        if ($id = parent::create()) {
            $insert = query_insert("INSERT INTO " . DB_PREFIX . $this->getTable() . " (base_id, elements, tasks) values (".$id.", '".mysql_real_escape_string(json_encode($this->getElements()))."', ".$this->getTasks().")");
            return $id;
        }
        return false; 
    }
    
    function save() {
        if (parent::save()) {
            $update = query_update("UPDATE " . DB_PREFIX . $this->getTable() . " SET elements='".mysql_real_escape_string(json_encode($this->getElements()))."', tasks=".$this->getTasks()." WHERE base_id=".$this->getId());
            return $this->getId();
        }
        return false;     
    }
    
    function copy($locked=false) {
        $copy = $this->create();
        if ($copy && $locked) {
            $lock = $this->lock($copy);
        }
        return $copy;
    }
    
    function answer($data) {
        $examinee = get_examinee()->getId();
        $elements = json_decode($this->getElements());
        $answers = array();
        foreach ($elements as $element) {
            $answers["te_element_".$element->nr] = array('title'=>$element->text, 'choice'=>0, 'nr'=>$element->nr, 'time'=>0);
        }
        $start = 0;
        $end = 0;
        if (isset($data['tea_elements']) && $data['tea_elements']!="") {
            $d = json_decode($data['tea_elements']);
            $start = $d->begin;
            $end = $d->end;
            $ans = $d->play;
            foreach ($ans as $a) {
                $answers[$a->id]["choice"] = 2;
                $answers[$a->id]["time"] = $a->time;
            }
        }
        $answers = serialize($answers);
        $insert = query_insert("INSERT INTO " . DB_PREFIX . "timeelapse_answer (base_id, examinee, elements, start, end) values (".$this->getId().", ".$examinee.", '".mysql_real_escape_string($answers)."', ".$start.", ".$end.")");
        if ($insert) {
            return true;
        }
        return false;
    }
    
    function collect($examinees) {
        $start = "start_time";
        $end = "end_time";
        $answers = array();
        $answers['title'][$start] = _("Start time");
        $answers['title'][$end] = _("End time");
        foreach ($examinees as $examinee) {
            $answer = query_row("SELECT *, a.elements as an_el FROM " . DB_PREFIX . "timeelapse_task t LEFT JOIN " . DB_PREFIX . "timeelapse_answer a ON t.base_id=a.base_id WHERE t.base_id=".$this->getId()." AND a.examinee=".$examinee);
            if ($answer) { 
                $answers[$examinee][$start] = $answer->start;
                $answers[$examinee][$end] = $answer->end;
                foreach (unserialize($answer->an_el) as $id => $element) {
                    $answers['title'][$id] = $element['title'];
                    $answers[$examinee][$id] = $element['choice'];
                }
            } else {
                $answers[$examinee][$start] = "-";
                $answers[$examinee][$end] = "-";
                foreach (json_decode($this->getElements()) as $element) {
                    $answers['title']['ks_element_'.$element->nr] = $element->text;
                    $answers[$examinee]['ks_element_'.$element->nr] = "-";;
                }
            }
        }
        $id = "kstask_".$this->getId();
        $title = _("None")." ".$this->getId();
        if ($this->getTitle()) $title = $this->getTitle();
        return array('id'=>$id, 'title'=>$title, 'answers'=>$answers);
    }
    
    function build($data) {
        if (parent::build($data)) {
            if (isset($data["te_tasks"]) && !empty($data["te_tasks"])) $this->setTasks($data["te_tasks"]);
            if ($this->getId() > 0) {
                return $this->save();
            } else {
                return $this->create();
            }
        }
      	return false;
    }
    
    function compose($data) {
        $elements = array();
        for ($i=0; $i<$this->getTasks(); $i++) {
            $desc = "";
            if (isset($data["te_element_desc_".$i]) && !empty($data["te_element_desc_".$i])) $desc = $data["te_element_desc_".$i];
            $fb = 0;
            if (isset($data["te_element_feedback_".$i]) && !empty($data["te_element_feedback_".$i])) $fb = $data["te_element_feedback_".$i];
            $element = array('desc'=>$desc, 'feedback'=>$fb);
            $elements []= $element;
        }
        if (count($elements)>0) {
            $this->setElements($elements);
            if ($this->getId() > 0) {
                $this->save();
                return true;
            }
      	}
      	return false;
    }
    
    function getElements() {
        return $this->elements;
    }
    
    function setElements($elements) {
        $this->elements = $elements;
    }
    
    function getJsonElements() {
        return $this->jsonelements;
    }
    
    function setJsonElements($elements) {
        $this->jsonelements = $elements;
    }
    
    function getTasks() {
        return $this->tasks;
    }
    
    function setTasks($tasks) {
        $this->tasks = $tasks;
    }
    
    function  buildFromXML($obj, $version=1, $folder=0) {
        parent::buildFromXML($obj, $folder);
        $elements = $obj["elements"];
        
        //$this->setElements($els_str);
        //return $this->create();
    }
    
    function getObjectsXML() {
        $xml = "<tasks><![CDATA[".$this->getTasks()."]]></tasks>\n";
        $xml = "<elements><![CDATA[".$this->getElements()."]]></elements>\n";
        return $xml;
    }


}
?>