<?php
require_once("ChoiceObject.php");

class ChoiceTask extends BaseTest {
    private $body_image = "";
    private $body_video = "";
    private $table_height = 0;
    private $table_width = 0;
    private $multiple_choice = 0;
    private $answer_required = 0;
    private $choices_per_page = 0;
    private $table_has_border = 0;
    private $video_zoom = 100;
    private $video_autoplay = 0;
    private $text_title = "";
    private $text_input = 0;
    private $text_value = "";
    private $text_cols = 25;
    private $text_rows = 3;
    private $text_charcount = 0;
    private $text_charcounter = 0;
    private $text_pos = 1;
    
    function __construct($id = NULL) {
        $this->setType("ChoiceTask");
        $this->setName("Choice Task");
        $this->setTable("choice_task");
        $this->setActions(array("view"=>_("View"), "edit"=>_("Edit"), "compose"=>_("Compose")));
        if ($id) {
            $data = $this->load($id);
            if ($data) {
                $this->setBodyImage($data->body_image);
                $this->setBodyVideo($data->body_video);
                $this->setTableHeight($data->table_height);
                $this->setTableWidth($data->table_width);
                $this->setMultipleChoice($data->multiple_choice);
                $this->setAnswerRequired($data->answer_required);
                $this->setChoicesPerPage($data->choices_per_page);
                $this->setTableHasBorder($data->table_has_border);
                $this->setVideoAutoplay($data->video_autoplay);
                $this->setVideoZoom($data->video_zoom);
                $this->setTextTitle($data->text_title);
                $this->setTextInput($data->text_input);
                $this->setTextValue($data->text_value);
                $this->setTextCols($data->text_cols);
                $this->setTextRows($data->text_rows);
                $this->setTextCharcount($data->text_charcount);
                $this->setTextCharcounter($data->text_charcounter);
                $this->setTextPos($data->text_pos);
            }
        }
    }
    
    function create() {
        if ($id = parent::create()) {
            $bi1 = "";
            $bi2 = "";
            if ($this->getBodyImage()) {
                $bi1 = "body_image, ";
                $bi2 = "'".$this->getBodyImage()."', ";
            }
            $insert = query_insert("INSERT INTO " . DB_PREFIX . $this->getTable() . " (base_id, ".$bi1."body_video, table_height, table_width, multiple_choice, answer_required, choices_per_page, table_has_border, video_zoom, video_autoplay, text_title, text_input, text_value, text_cols, text_rows, text_charcount, text_charcounter, text_pos) values (".$id.", ".$bi2."'".mysql_real_escape_string($this->getBodyVideo())."', ".mysql_real_escape_string($this->getTableHeight()).", ".mysql_real_escape_string($this->getTableWidth()).", ".$this->getMultipleChoice().", ".$this->getAnswerRequired().", ".mysql_real_escape_string($this->getChoicesPerPage()).", ".$this->getTableHasBorder().", ".$this->getVideoZoom().", ".$this->getVideoAutoplay().", '".mysql_real_escape_string($this->text_title)."', ".$this->text_input.", '".mysql_real_escape_string($this->text_value)."', ".$this->text_cols.", ".$this->text_rows.", ".$this->text_charcount.", ".$this->text_charcounter.", ".$this->text_pos.")");
            return $id;
        }
        return false; 
    }
    
    function save() {
        if (parent::save()) {
            $bi = "";
            if ($this->getBodyImage()) $bi = "body_image='".$this->getBodyImage()."',";
            if (query_update("UPDATE " . DB_PREFIX . $this->getTable() . " SET ".$bi." body_video='".mysql_real_escape_string($this->getBodyVideo())."', table_height=".mysql_real_escape_string($this->getTableHeight()).", table_width=".mysql_real_escape_string($this->getTableWidth()).", multiple_choice=".$this->getMultipleChoice().", answer_required=".$this->getAnswerRequired().", choices_per_page=".mysql_real_escape_string($this->getChoicesPerPage()).", table_has_border=".$this->getTableHasBorder().", video_zoom=".$this->getVideoZoom().", video_autoplay=".$this->getVideoAutoplay().", text_title='".mysql_real_escape_string($this->text_title)."', text_input =".$this->text_input.", text_value='".mysql_real_escape_string($this->text_value)."', text_cols=".$this->text_cols.", text_rows=".$this->text_rows.", text_charcount=".$this->text_charcount.", text_charcounter=".$this->text_charcounter.", text_pos=".$this->text_pos." WHERE base_id=".$this->getId())) return $this->getId();
        }
        return false;     
    }
    
    function copy($locked=false) {
        if ($this->getBodyImage()) {
            $image = new Image($this->getBodyImage());
            $this->setBodyImage($image->copy($locked));
        }
        $copy = $this->create();
        if ($copy){
            if ($locked) {
                $lock = $this->lock($copy);
            }
            $choices = $this->getChoices();
            foreach ($choices as $choice) {
                $choice->setParent($copy);
                if (!$choice->copy($locked)) return false;
            }
            return true;
        }
        return false;
    }
    
    function delete() {
        if (is_admin() || $this->getCreator()==get_logged_in_user()->getId()) {
            $choices = $this->getChoices();
            if (parent::delete()) {
                if ($this->getBodyImage()) {
                    $img = new Image($this->getBodyImage());
                    $img->delete();
                }
                foreach ($choices as $choice) {
                    $choice->delete();
                }
                return true;
            }
        }
        return false;
    }
    
    function answer($data) {
        $textfield = "";
        if (isset($data['textfield_'.$this->getId()])) $textfield = $data['textfield_'.$this->getId()];
        $selected_choices = array();
        if (isset($data['ch_answer_'.$this->getId()])) {
            $selected_choices = $data['ch_answer_'.$this->getId()];
        }
        if ($this->getAnswerRequired() && empty($textfield) && empty($selected_choices)) {
            return false;
        }
        $examinee = get_examinee()->getId();
        $timer = parent::timer($data);
        if ($timer) {
            query_insert("INSERT INTO " . DB_PREFIX . "choice_answer ".
                "(base_id, examinee, textfield, time_load, time_start, time_end, time_submit) values ".
                "(".$this->getId().", ".$examinee.", '".mysql_real_escape_string($textfield)."', ".
                $timer["load"].", ".$timer["start"].", ".$timer["end"].", ".$timer["submit"].
                ") ON DUPLICATE KEY UPDATE textfield='".mysql_real_escape_string($textfield)."', ".
                "time_load=".$timer["load"].", time_start=".$timer["start"].", time_end=".$timer["end"].", time_submit=".$timer["submit"]);
        }
        $choices = $this->getChoices(1);
        foreach ($choices as $choice) {
            if (!$choice->answer($data)) return false;
        }
        return true;
    }
    
    function collect($examinees) {
        $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");
        if ($this->getTextInput()) {
            $textfield = "textfield";
            $title = _("Text");
            if ($this->getTextTitle()) $title = $this->getTextTitle();
            $answers ['title'][$textfield]= $title;
        }
        foreach ($examinees as $examinee) {
            $answer = query_row("SELECT * FROM " . DB_PREFIX . "choice_answer a LEFT JOIN " . DB_PREFIX . "choice_task c ON c.base_id=a.base_id WHERE c.base_id=".$this->getId()." AND a.examinee=".$examinee);
            if ($answer) {
                $answers[$examinee][$start] = $answer->time_start;
                $answers[$examinee][$end] = $answer->time_end;
                $answers[$examinee][$submit] = $answer->time_submit;
                if ($this->getTextInput()) {
                    $answers[$examinee][$textfield] = $answer->textfield;
                }
            } else {
                $answers[$examinee][$start] = "-";
                $answers[$examinee][$end] = "-";
                $answers[$examinee][$submit] = "-";
                if ($this->getTextInput()) {
                    $answers[$examinee][$textfield] = "-";
                }
            }
        }

        $ca = array('selection'=>array());
        $choices = $this->getChoices(1);
        foreach ($choices as $choice) {
            $id = "choice_".$choice->getId();
            $title = _("None")." ".$choice->getId();
            if ($choice->getTitle()) $title = $choice->getTitle();
            $ca[$id] = array('id'=>$choice->getId(), 'title'=>$title, 'answers'=>$choice->collect($examinees));
        }
        if (count($ca) > 1 && !$this->getMultipleChoice()) {
            $choice_counter = 1;
            $choice_selection_title = _("Selection");
            $choice_selection_answers = array();
            $choice_selection_answers["title"] = array("choice_selection_".$this->getId() => $choice_selection_title);
            foreach ($ca as $c) {
                if (isset($c["id"])) {
                   $cid = $c["id"];
                   foreach ($c["answers"]as $e => $a) {                                        
                       if ($e != "title") {
                           if (!array_key_exists($e, $choice_selection_answers)) $choice_selection_answers[$e]["choice_selection_".$this->getId()] = "-";
                           if ($a["choice_".$cid] > 0) {
                               $choice_selection_answers[$e]["choice_selection_".$this->getId()] = $choice_counter;
                           }
                       }
                   }
                   $choice_counter++;
                }
            }
            $choice_selection = array("id"=>$this->getId(), "title"=> $choice_selection_title, "answers" => $choice_selection_answers);
            $ca['selection'] = $choice_selection;
        }else {
            unset($ca['selection']);
        }
        if ($answers || $ca) {
            $id = "choicetask_".$this->getId();
            $title = _("None")." ".$this->getId();
            if ($this->getTitle()) $title = $this->getTitle();
            return array('id'=>$id, 'title'=>$title, 'answers'=>$answers, 'choices'=>$ca);
        }
        return array();
    }
    
    function build($data) {
        if (parent::build($data)) {
            $body_image = get_file("body_image");
            if (!isset($body_image["error"]) || $body_image["error"] == 0) {
                if ($this->getBodyImage() > 0) {
                    $image = new Image($this->getBodyImage());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($body_image);
                if ($image_id) {
                    $this->setBodyImage($image_id);
                }
            } else if (get_input("delete_body_image", false)) {
                $image = new Image($this->getBodyImage());
                if ($image->delete()) $this->setBodyImage(NULL);
            }
            if (isset($data["body_video"]) && !empty($data["body_video"])) $this->setBodyVideo($data["body_video"]);
            $this->setVideoAutoplay(0);
            if (isset($data["video_autoplay"])) $this->setVideoAutoplay($data["video_autoplay"]);
            if (isset($data["video_zoom"])) $this->setVideoZoom($data["video_zoom"]);
            if (isset($data["table_height"])) {
                if (is_numeric($data["table_height"])) {
                    $this->setTableHeight($data["table_height"]);
                } else {
                    $this->addBuildError(_("Table height"));
                }
            }
            if (isset($data["table_width"])) {
                if (is_numeric($data["table_width"])) {
                    $this->setTableWidth($data["table_width"]);
                } else {
                    $this->addBuildError(_("Table width"));
                }
            }
            $this->setMultipleChoice(0);
            if (isset($data["multiple_choice"])) $this->setMultipleChoice($data["multiple_choice"]);
            $this->setAnswerRequired(0);
            if (isset($data["answer_required"])) $this->setAnswerRequired($data["answer_required"]);
            if (isset($data["choices_per_page"])) {
                if (is_numeric($data["choices_per_page"])) {
                    $this->setChoicesPerPage($data["choices_per_page"]);
                } else {
                    $this->addBuildError(_("Choices per page"));
                }
            }
            $this->setTableHasBorder(0);
            if (isset($data["table_has_border"])) $this->setTableHasBorder($data["table_has_border"]);
            $this->setTextInput(0);
            if (isset($data["text_input"])) $this->setTextInput($data["text_input"]);
            if (isset($data["text_title"])) $this->setTextTitle($data["text_title"]);
            if (isset($data["text_value"])) $this->setTextValue($data["text_value"]);
            if (isset($data["text_cols"])) $this->setTextCols($data["text_cols"]);
            if (isset($data["text_rows"])) $this->setTextRows($data["text_rows"]);
            if (isset($data["text_charcount"])) {
                if (is_numeric($data["text_charcount"])) { 
                    $this->setTextCharcount($data["text_charcount"]);
                } else {
                    $this->setTextCharcount(0);
                }
            }
            $this->setTextCharcounter(0);
            if (isset($data["text_charcounter"])) $this->setTextCharcounter($data["text_charcounter"]);
            if (isset($data["text_pos"])) $this->setTextPos($data["text_pos"]);
            if ($this->getBuildError()) {
                global $TeKe;
                $TeKe->add_system_message(_("Problems with fields") . ": " . implode(",", $this->getBuildError()), 'error');
      	        return false;    
            }
            if ($this->getId() > 0) {
                return $this->save();
            } else {
                return $this->create();
            }
        }
    }
    
    function compose($data) {
        $nr = 0;
        foreach ($this->getChoices() as $choice) {
            $choice->setParent($this->getId());
            $choice->build($nr, $data);
            $nr++;
        }
      	return true;
    }
                
    function getBodyImage() {
        return $this->body_image;
    }
    
    function setBodyImage($body_image) {
        $this->body_image = $body_image;
    }
    
    function getBodyVideoView() {
        $video = new YoutubeVideo($this->body_video);
        $video->resize($this->getVideoZoom());
        if ($this->getVideoAutoplay()) {
            $video->setAutoplay(1);
        }
        return $video->view();
    }
    
    function getBodyVideo() {
        return $this->body_video;
    }
    
    function setBodyVideo($body_video) {
        $this->body_video = $body_video;
    }
    
    function getVideoZoom() {
        return $this->video_zoom;
    }
    
    function setVideoZoom($video_zoom) {
        $this->video_zoom = $video_zoom;
    }
    
    function getVideoAutoplay() {
        return $this->video_autoplay;
    }
    
    function setVideoAutoplay($video_autoplay) {
        if ($video_autoplay) {
            $this->video_autoplay = 1;
        } else {
            $this->video_autoplay = 0;
        }
    }
    
    function getTableHeight() {
        return $this->table_height;
    }
    
    function setTableHeight($table_height) {
        $this->table_height = $table_height;
    }
    
    function getTableWidth() {
        return $this->table_width;
    }
    
    function setTableWidth($table_width) {
        $this->table_width = $table_width;
    }
                
    function getMultipleChoice() {
        return $this->multiple_choice;
    }
    
    function setMultipleChoice($table_has_border) {
        if ($table_has_border) {
            $this->multiple_choice = 1;
        } else {
            $this->multiple_choice = 0;
        }
    }
    
    function getAnswerRequired() {
        return $this->answer_required;
    }
    
    function setAnswerRequired($answer_required) {
        if ($answer_required) {
            $this->answer_required = 1;
        } else {
            $this->answer_required = 0;
        }
    }
    
    function getTableHasBorder() {
        return $this->table_has_border;
    }
    
    function setTableHasBorder($table_has_border) {
        if ($table_has_border) {
            $this->table_has_border = 1;
        } else {
            $this->table_has_border = 0;
        }
    }
    
    function getTextTitle() {
        return $this->text_title;
    }
    
    function setTextTitle($text_title) {
        $this->text_title = $text_title;
    }
    
    function getTextValue() {
        return $this->text_value;
    }
    
    function setTextValue($text_value) {
        $this->text_value = $text_value;
    }
    
    function getTextInput() {
        return $this->text_input;
    }
    
    function setTextInput($text_input) {
        if ($text_input) {
            $this->text_input = 1;
        } else {
            $this->text_input = 0;
        }
    }
    
    function getTextCols() {
        return $this->text_cols;
    }
    
    function setTextCols($text_cols) {
        $this->text_cols = $text_cols;
    }
    
    function getTextRows() {
        return $this->text_rows;
    }
    
    function setTextRows($text_rows) {
        $this->text_rows = $text_rows;
    }
    
    function getTextCharcount() {
        return $this->text_charcount;
    }
    
    function setTextCharcount($text_charcount) {
        $text_charcount = (int) $text_charcount;
        if (is_numeric($text_charcount)) {
            $this->text_charcount = $text_charcount;
        }
    }
    
    function getTextCharcounter() {
        return $this->text_charcounter;
    }
    
    function setTextCharcounter($text_charcounter) {
        if ($text_charcounter) {
            $this->text_charcounter = 1;
        } else {
            $this->text_charcounter = 0;
        }
    }
    
    function getTextPos() {
        return $this->text_pos;
    }
    
    function setTextPos($text_pos) {
        $this->text_pos = $text_pos;
    }
    
    function getChoicesPerPage() {
        return $this->choices_per_page;
    }
    
    function setChoicesPerPage($choices_per_page) {
        $this->choices_per_page = $choices_per_page;
    }
    
/*    function getChoices() {
        $choices = array();
        foreach(query_rows("SELECT id FROM " . DB_PREFIX . "choices WHERE parent=".$this->getId()) as $ch) {
            $choices []= new ChoiceObject($ch->id);
        }
        for ($i=count($choices); $i<($this->getTableHeight()*$this->getTableWidth()); $i++) {
            $choices []= new ChoiceObject();
        }
        return $choices;
    }
*/
    
    function getChoices($existing = false) {
        $choices = array();
        if ($this->getId() > 0) {
            foreach(query_rows("SELECT id FROM " . DB_PREFIX . "choices WHERE parent =".$this->getId()." ORDER BY pos ASC") as $ch) {
                $choices []= new ChoiceObject($ch->id);
            }
        }
        if (!$existing) {
            for ($i=count($choices); $i<($this->getTableHeight()*$this->getTableWidth()); $i++) {
                $choices []= new ChoiceObject();
            }
        }
        return $choices;
    }
    
    function  buildFromXML($obj, $folder=0, $dir, $version=1) {
        parent::buildFromXML($obj, $folder, $dir, $version);
        $img = $obj->imageFile[0][0];
        if ($obj->imageFile[0][0]) {
            $image = new Image();
            $image_id = $image->save_from_dir($dir, $obj->imageFile[0][0]);
            if ($image_id > 0) {
                $this->setBodyImage($image_id);
            }
        }
        if ($version==2) {
            $this->setBodyVideo($obj->body_video[0][0]);
            $this->setVideoAutoplay($obj->video_autoplay[0][0]);
            $this->setVideoZoom($obj->video_zoom[0][0]);
            $this->setTextInput($obj->text_input[0][0]);
            $this->setTextTitle($obj->text_title[0][0]);
            $this->setTextValue($obj->text_value[0][0]);
            $this->setTextCols($obj->text_cols[0][0]);
            $this->setTextRows($obj->text_rows[0][0]);
        }
        $this->setTableHeight($obj->tableHeight[0][0]);
        $this->setTableWidth($obj->tableWidth[0][0]);
        if (isset($obj->multipleChoice[0][0]) && $obj->multipleChoice[0][0] && $obj->multipleChoice[0][0] != "False") {
            $this->setMultipleChoice(1);
        } else {
            $this->setMultipleChoice(0);    
        }
        if (isset($obj->answerRequired[0][0]) && $obj->answerRequired[0][0] && $obj->answerRequired[0][0] != "False") {
            $this->setAnswerRequired(1);
        } else {
            $this->setAnswerRequired(0);    
        }
        if (isset($obj->choicesPerPage[0][0]) && $obj->choicesPerPage[0][0] && $obj->choicesPerPage[0][0] != "False") {
            $this->setChoicesPerPage(1);
        } else {
            $this->setChoicesPerPage(0);    
        }
        if (isset($obj->tableHasBorder[0][0]) && $obj->tableHasBorder[0][0] && $obj->tableHasBorder[0][0] != "False") {
            $this->setTableHasBorder(1);
        } else {
            $this->setTableHasBorder(0);    
        }
        return $this->create();
    }
    
    function getObjectsXML() {
        $xml = "<elements><![CDATA[".$this->getElements()."]]></elements>\n";
        return $xml;
    }
}
?>