<?php
class TMTTask extends BaseTest{
    private $elements;
    
    function __construct($id = NULL) {
        $this->setType("TMTTask");
        $this->setName("TMT Task");
        $this->setTable("tmt_task");
        $this->setActions(array("view"=>_("View"), "edit"=>_("Edit"), "compose"=>_("Compose")));
        if ($id) {
            $data = $this->load($id);
            if ($data) {
                $this->setElements($data->elements);
            }
        }
    }
    
    function create() {
        if ($id = parent::create()) {
            $insert = query_insert("INSERT INTO " . DB_PREFIX . $this->getTable() . " (base_id, elements) values (".$id.", '".mysql_real_escape_string($this->getElements())."')");
            return $id;
        }
        return false; 
    }
    
    function save() {
        if (parent::save()) {
            $update = query_update("UPDATE " . DB_PREFIX . $this->getTable() . " SET elements='".mysql_real_escape_string($this->getElements())."' WHERE base_id=".$this->getId());
            if ($update) return $this->getId();
        }
        return false;     
    }
    
    function copy($locked=false) {
        $copy = $this->create();
        if ($copy && $locked) {
            $lock = $this->lock($copy);
        }
        return $copy;
    }
    
    function build($data) {
        if (parent::build($data)) {
            if ($this->getId() > 0) {
                return $this->save();
            } else {
                return $this->create();
            }
        }
      	return false;
    }
    
    function compose($data) {
        if (isset($data["tmt_elements"]) && !empty($data["tmt_elements"])) {
            $this->setElements($data["tmt_elements"]);
            if ($this->getId() > 0) {
                $this->save();
                return true;
            }
      	}
      	return false;
    }
    
    function delete() {
        if (is_admin() || $this->getCreator()==get_logged_in_user()->getId()) {
            if (parent::delete()) {
                return true;
            }
        }
        return false;
    }
    
    function answer($data) {
        if (!isset($data['tmt_task_answers'])) {
            return false;
        }
        $examinee = get_examinee()->getId();
        $task_answer = $data['tmt_task_answers'];
        $load_time = $data['tmt_load_time'];
        $task_time = $data['tmt_task_time']; 
        
        $answer = explode(",", $task_answer);
        $faults = 0;
        foreach ($answer as $ans) {
            if ($ans == 1) {
                $faults += 1;
            }
        }
        $timer = parent::timer($data);
        if ($timer && $task_answer) {
            query_insert("INSERT INTO " . DB_PREFIX . "tmt_answer ".
                "(base_id, examinee, elements, faults, load_time, task_time, time_load, time_start, time_end, time_submit) values ".
                "(".$this->getId().", ".$examinee.", '".mysql_real_escape_string($task_answer)."', ".
                "'". $task_answer ."', ". $faults .", ". $load_time .", ". $task_time ."".
                $timer["load"].", ".$timer["start"].", ".$timer["end"].", ".$timer["submit"].
                ") ON DUPLICATE KEY UPDATE elements='".mysql_real_escape_string($task_answer)."', ".
                "faults=".$faults.", load_time=".$load_time.", task_time=".$task_time.", ".
                "time_load=".$timer["load"].", time_start=".$timer["start"].", time_end=".$timer["end"].", time_submit=".$timer["submit"]);
        }
        return true;
    }
    
    function collect($examinees) {
        //$start = "start_time";
        //$end = "end_time";
        //$load = "load_time";
        //$task = "task_time";
        $elements = "elements";
        $faults = "faults";
        $answers = array();
        $start = "start_time";
        $end = "end_time";
        $submit = "submit_time";
        $answers['title'][$start] = _("Start time");
        $answers['title'][$end] = _("End time");
        $answers['title'][$submit] = _("Submit time");
        //$answers['title'][$start] = _("Start time");
        //$answers['title'][$end] = _("End time");
        //$answers['title'][$load] = _("Load time");
        //$answers['title'][$task] = _("Task time");
        $answers['title'][$elements] = _("Elements");
        $answers['title'][$faults] = _("Faults");
        foreach ($examinees as $examinee) {
            $answer = query_row("SELECT * FROM " . DB_PREFIX . "tmt_task t LEFT JOIN " . DB_PREFIX . "tmt_answer a ON t.base_id=a.base_id WHERE t.base_id=".$this->getId()." AND a.examinee=".$examinee);
            if ($answer) {
                $answers[$examinee][$start] = $answer->time_start;
                $answers[$examinee][$end] = $answer->time_end;
                $answers[$examinee][$submit] = $answer->time_submit;
                //$answers[$examinee][$start] = round($answer->start/1000, 1);
                //$answers[$examinee][$end] = round($answer->end/1000, 1);
                //$answers[$examinee][$load] = $answer->load_time;
                //$answers[$examinee][$task] = $answer->task_time;
                $answers[$examinee][$elements] = $answer->elements;
                $answers[$examinee][$faults] = $answer->faults;
            } else {
                $answers[$examinee][$start] = "-";
                $answers[$examinee][$end] = "-";
                $answers[$examinee][$submit] = "-";
                //$answers[$examinee][$load] = "-";
                //$answers[$examinee][$task] = "-";
                $answers[$examinee][$elements] = "-";
                $answers[$examinee][$faults] = "-";
            }
        }
        $id = "tmttask_".$this->getId();
        $title = _("None")." ".$this->getId();
        if ($this->getTitle()) $title = $this->getTitle();
        return array('id'=>$id, 'title'=>$title, 'answers'=>$answers);
    }
    
    function getElements() {
        return $this->elements;
    }
    
    function setElements($elements) {
        $this->elements = $elements;
    }
    
    function  buildFromXML($obj, $folder=0, $dir, $version=1) {
        parent::buildFromXML($obj, $folder, $dir, $version);
        $elements = $obj->elements[0][0];
        if ($version == 1) {
            $fp=popen("./unpickle.py \"".$elements."\"","r");
            $buffer = "";
            while (!feof($fp)) {
                $buffer .= fgets($fp, 4096);
            }
            pclose($fp); 
            $elements = json_decode($buffer);
            $els = array();
            $c = 0;
            foreach ($elements as $el) {
                $els []= "\"".$c."\":{\"x\":".$el[0].",\"y\":".$el[1].",\"text\":\"".$el[2]."\",\"type\":\"".$el[3]."\"}";
                $c++;
            }
            $els_str = "{".join($els, ",")."}";
        }
        $this->setElements($els_str);
        return $this->create();
    }
    
    function getObjectsXML() {
        $xml = "<elements><![CDATA[".$this->getBody()."]]></elements>\n";
        return $xml;
    }


}
?>