<?php
class ImageDragTask extends BaseTest {
    private $elements;
    private $element_size;
    private $drag_image_1;
    private $drag_image_2;
    private $drag_image_3;
    private $drag_image_4;
    private $drag_image_5;
    private $drag_image_6;
    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 $answer_required = 0;

    function __construct($id = NULL) {
        $this->setType("ImageDragTask");
        $this->setName("Image Drag Task");
        $this->setTable("image_drag_task");
        $this->setActions(array("view"=>_("View"), "edit"=>_("Edit"), "compose"=>_("Compose")));
        if ($id) {
            $data = $this->load($id);
            if ($data) {
                $this->setDragImage1($data->drag_image_1);
                $this->setDragImage2($data->drag_image_2);
                $this->setDragImage3($data->drag_image_3);
                $this->setDragImage4($data->drag_image_4);
                $this->setDragImage5($data->drag_image_5);
                $this->setDragImage6($data->drag_image_6);
                $this->setElementSize($data->element_size);
                $this->setElements(json_decode($data->elements));
                $this->setTextTitle($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);
                $this->setAnswerRequired($data->answer_required);
            }
        }
    }

    function create() {
        if ($id = parent::create()) {
            $bi1 = "";
            $bi2 = "";
            if ($this->getDragImage1()) {
                $bi1 .= "drag_image_1, ";
                $bi2 .= "'".$this->getDragImage1()."', ";
            }
            if ($this->getDragImage2()) {
                $bi1 .= "drag_image_2, ";
                $bi2 .= "'".$this->getDragImage2()."', ";
            }
            if ($this->getDragImage3()) {
                $bi1 .= "drag_image_3, ";
                $bi2 .= "'".$this->getDragImage3()."', ";
            }
            if ($this->getDragImage4()) {
                $bi1 .= "drag_image_4, ";
                $bi2 .= "'".$this->getDragImage4()."', ";
            }
            if ($this->getDragImage5()) {
                $bi1 .= "drag_image_5, ";
                $bi2 .= "'".$this->getDragImage5()."', ";
            }
            if ($this->getDragImage6()) {
                $bi1 .= "drag_image_6, ";
                $bi2 .= "'".$this->getDragImage6()."', ";
            }
            if (!$this->getElements()){
                $this->initializeComposer();
            }
            $insert = query_insert("INSERT INTO " . DB_PREFIX . $this->getTable() . " (".
                "base_id, ".$bi1.
                "elements, ".
                "element_size, ".
                "answer_required, ".
                "text_title, ".
                "text_input, ".
                "text_value, ".
                "text_cols, ".
                "text_rows, ".
                "text_charcount, ".
                "text_charcounter".
                ") values (".$id.", ".$bi2."'".
                mysql_real_escape_string($this->getElementsJson())."', ".
                $this->getElementSize().", ".
                $this->getAnswerRequired().", '".
                mysql_real_escape_string($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.")");
            return $id;
        }
        return false; 
    }
    
    function save() {
        if (parent::save()) {
            $bi = "";
            if ($this->getDragImage1()) $bi .= "drag_image_1='".$this->getDragImage1()."',";
            if ($this->getDragImage2()) $bi .= "drag_image_2='".$this->getDragImage2()."',";
            if ($this->getDragImage3()) $bi .= "drag_image_3='".$this->getDragImage3()."',";
            if ($this->getDragImage4()) $bi .= "drag_image_4='".$this->getDragImage4()."',";
            if ($this->getDragImage5()) $bi .= "drag_image_5='".$this->getDragImage5()."',";
            if ($this->getDragImage6()) $bi .= "drag_image_6='".$this->getDragImage6()."',";
            $update = query_update("UPDATE " . DB_PREFIX . $this->getTable() . " SET ".$bi.
                "elements='".mysql_real_escape_string($this->getElementsJson())."', ".
                "element_size=".$this->getElementSize().", ".
                "answer_required=".$this->getAnswerRequired().", ".
                "text_title='".mysql_real_escape_string($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." ".
                "WHERE base_id=".$this->getId());
            if ($update) return $this->getId();
        }
        return false;     
    }
    
    function copy($locked=false) {
        if ($this->getDragImage1()) {
            $image = new Image($this->getDragImage1());
            $this->setDragImage1($image->copy($locked));
        }
        if ($this->getDragImage2()) {
            $image = new Image($this->getDragImage2());
            $this->setDragImage2($image->copy($locked));
        }
        if ($this->getDragImage3()) {
            $image = new Image($this->getDragImage3());
            $this->setDragImage3($image->copy($locked));
        }
        if ($this->getDragImage4()) {
            $image = new Image($this->getDragImage4());
            $this->setDragImage4($image->copy($locked));
        }
        if ($this->getDragImage5()) {
            $image = new Image($this->getDragImage5());
            $this->setDragImage5($image->copy($locked));
        }
        if ($this->getDragImage6()) {
            $image = new Image($this->getDragImage6());
            $this->setDragImage6($image->copy($locked));
        }
        $copy = $this->create();
        if ($copy && $locked) {
            $lock = $this->lock($copy);
        }
        return $copy;
    }

    function initializeComposer() {
        $element_array = Array();
        for ($i=0; $i<6; $i++) {
            $element_array[$i]->nr = $i+1;
            $element_array[$i]->drag_active = false;
            $element_array[$i]->drag_show_title = false;
            $element_array[$i]->drag_title = "";
            $element_array[$i]->drag_image = null;
            $element_array[$i]->drop_active = false;
            $element_array[$i]->drop_show_title = false;
            $element_array[$i]->drop_title = "";
            $element_array[$i]->drop_correct = 0;
        }
        $this->setElements($element_array);
    }
    
    function compose($data) {
        $this->initializeComposer();
        $element_array = $this->getElements();
        for ($i=0; $i<6; $i++) {

            if (isset($data["drag_image_active_".$i])) {
                $element_array[$i]->drag_active = true;
            }
            if (isset($data["drag_image_show_title_".$i])) {
                $element_array[$i]->drag_show_title = true;
            }
            if (isset($data["drag_title_input_".$i])) {
                $element_array[$i]->drag_title = $data["drag_title_input_".$i];
            }
            if (isset($data["drag_image_id_".$i])) {
                $element_array[$i]->drag_image = $data["drag_image_id_".$i];
            }
            if (isset($data["drop_image_active_".$i])) {
                $element_array[$i]->drop_active = true;
            }
            if (isset($data["drop_image_show_title_".$i])) {
                $element_array[$i]->drop_show_title = true;
            }
            if (isset($data["drop_title_input_".$i])) {
                $element_array[$i]->drop_title = $data["drop_title_input_".$i];
            }
            if (isset($data["drop_image_correct_".$i])) {
                $element_array[$i]->drop_correct = $data["drop_image_correct_".$i];
            }
        }
        $this->setElements($element_array);
        var_dump($this->getElements());
        if ($this->getId() > 0) {
            $this->save();
            return true;
        }
      	return false;
    }
    
    function delete() {
        if (is_admin() || $this->getCreator()==get_logged_in_user()->getId()) {
            if (parent::delete()) {
                if ($this->getDragImage1()) {
                    $img = new Image($this->getDragImage1());
                    $img->delete();
                }
                if ($this->getDragImage2()) {
                    $img = new Image($this->getDragImage2());
                    $img->delete();
                }
                if ($this->getDragImage3()) {
                    $img = new Image($this->getDragImage3());
                    $img->delete();
                }
                if ($this->getDragImage4()) {
                    $img = new Image($this->getDragImage4());
                    $img->delete();
                }
                if ($this->getDragImage5()) {
                    $img = new Image($this->getDragImage5());
                    $img->delete();
                }
                if ($this->getDragImage6()) {
                    $img = new Image($this->getDragImage6());
                    $img->delete();
                }
                return true;
            }
        }
        return false;
    }
    
    function answer($data) {

        $examinee = get_examinee()->getId();
        $elements = $this->getElements();
        $answers = Array();
        foreach($elements as $element) {
            $answer = Array('answer'=>'-', 'correct'=> 0);
            if ($element->drop_active) {
                if(isset($data['droppable_answer_'.$element->nr])) {
                    $answer['answer'] = $data['droppable_answer_'.$element->nr];
                    if ($element->drop_correct === '0' || $element->drop_correct === $answer['answer']) {
                        $answer['correct'] = 1;
                    }
                }
                $answers[$element->nr] = $answer;
            }
        }
        $answer_start = null;
        if(isset($data['answer_start'])) {
            $answer_start = $data['answer_start'];
        }
        $answer_stop = null;
        if(isset($data['answer_stop'])) {
            $answer_stop = $data['answer_stop'];
        }
        $text = "";
        if(isset($data['textfield_0'])) {
            $text = $data['textfield_0'];
        }
        $timer = parent::timer($data);
        if ($timer && $answers) {
            query_insert("INSERT INTO " . DB_PREFIX . "image_drag_answer ".
                "(base_id, examinee, answer, textfield, start, end, time_load, time_start, time_end, time_submit) values ".
                "(".$this->getId().", ".$examinee.", '".json_encode($answers) ."', '".mysql_real_escape_string($text)."', ".$answer_start.", ".$answer_stop.", ".
                $timer["load"].", ".$timer["start"].", ".$timer["end"].", ".$timer["submit"].
                ") ON DUPLICATE KEY UPDATE answer='".json_encode($answers) ."', ".
                "textfield='".mysql_real_escape_string($text)."', start=".$answer_start.", end=".$answer_stop.",".
                "time_load=".$timer["load"].", time_start=".$timer["start"].", time_end=".$timer["end"].", time_submit=".$timer["submit"]);
        }
        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");
        $textfield = "textfield";
        $choice = "choice";
        $correct = "correct";
        $title = _("Text");
        if ($this->getTextTitle()) $title = $this->getTextTitle();
        $answers ['title'][$textfield]= $title;
        foreach ($this->getElements() as $element) {
            if ($element->drop_active) {
                $answers['title'][$choice."_".$element->nr] = _("Selection")." ".$element->nr;
                $answers['title'][$correct."_".$element->nr] = _("Correct")." ".$element->nr;
            }
        }

        foreach ($examinees as $examinee) {
            $answer = query_row("SELECT * FROM " . DB_PREFIX . "image_drag_task t LEFT JOIN " . DB_PREFIX . "image_drag_answer a ON t.base_id=a.base_id WHERE t.base_id=".$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][$textfield] = $answer->textfield;
                foreach (json_decode($answer->answer) as $nr => $ans) {
                    $answers[$examinee][$choice."_".$nr] = $ans->answer;
                    $answers[$examinee][$correct."_".$nr] = $ans->correct;
                }
            } else {
                $answers[$examinee][$start] = "-";
                $answers[$examinee][$end] = "-";
                $answers[$examinee][$submit] = "-";
                $answers[$examinee][$textfield] = "-";
                foreach ($this->getElements() as $element) {
                    if ($element->drop_active) {
                        $answers[$examinee][$choice."_".$element->nr] = "-";
                        $answers[$examinee][$correct."_".$element->nr] = "-";
                    }
                }
            }
        }
        $id = "imagedragtask_".$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 getElementsJson() {
        return json_encode($this->elements);
    }

    function getElementSize() {
        return $this->element_size;
    }

    function setElementSize($element) {
        $this->element_size = $element;
    }

    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 getAnswerRequired() {
        return $this->answer_required;
    }

    function setAnswerRequired($answer_required) {
        if ($answer_required) {
            $this->answer_required = 1;
        } else {
            $this->answer_required = 0;
        }
    }

    function getDragImage1() {
        return $this->drag_image_1;
    }

    function setDragImage1($drag_image_1) {
        $this->drag_image_1 = $drag_image_1;
    }

    function getDragImage2() {
        return $this->drag_image_2;
    }

    function setDragImage2($drag_image_2) {
        $this->drag_image_2 = $drag_image_2;
    }

    function getDragImage3() {
        return $this->drag_image_3;
    }

    function setDragImage3($drag_image_3) {
        $this->drag_image_3 = $drag_image_3;
    }

    function getDragImage4() {
        return $this->drag_image_4;
    }

    function setDragImage4($drag_image_4) {
        $this->drag_image_4 = $drag_image_4;
    }

    function getDragImage5() {
        return $this->drag_image_5;
    }

    function setDragImage5($drag_image_5) {
        $this->drag_image_5 = $drag_image_5;
    }

    function getDragImage6() {
        return $this->drag_image_6;
    }

    function setDragImage6($drag_image_6) {
        $this->drag_image_6 = $drag_image_6;
    }

    function getDragImages() {
        return Array(
            $this->getDragImage1(),
            $this->getDragImage2(),
            $this->getDragImage3(),
            $this->getDragImage4(),
            $this->getDragImage5(),
            $this->getDragImage6()
        );
    }
    
    function build($data) {
        if (parent::build($data)) {
            $this->setAnswerRequired(0);
            if (isset($data["answer_required"])) $this->setAnswerRequired($data["answer_required"]);
            $this->setTextInput(0);
            if (isset($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["element_size"])) $this->setElementSize($data["element_size"]);
            // TODO this is really *****
            // DG IMG 1
            $drag_image_1 = get_file("drag_image_input_0");
            if (!isset($drag_image_1["error"]) || $drag_image_1["error"] == 0) {
                if ($this->getDragImage1() > 0) {
                    $image = new Image($this->getDragImage1());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($drag_image_1);
                if ($image_id) {
                    $this->setDragImage1($image_id);
                }
            } else if (get_input("delete_drag_image_0", false)) {
                $image = new Image($this->getDragImage1());
                if ($image->delete()) $this->setDragImage1(NULL);
            }

            // DG IMG 2
            $drag_image_2 = get_file("drag_image_input_1");
            if (!isset($drag_image_2["error"]) || $drag_image_2["error"] == 0) {
                if ($this->getDragImage2() > 0) {
                    $image = new Image($this->getDragImage2());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($drag_image_2);
                if ($image_id) {
                    $this->setDragImage2($image_id);
                }
            } else if (get_input("delete_drag_image_1", false)) {
                $image = new Image($this->getDragImage2());
                if ($image->delete()) $this->setDragImage2(NULL);
            }

            // DG IMG 3
            $drag_image_3 = get_file("drag_image_input_2");
            if (!isset($drag_image_3["error"]) || $drag_image_3["error"] == 0) {
                if ($this->getDragImage3() > 0) {
                    $image = new Image($this->getDragImage3());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($drag_image_3);
                if ($image_id) {
                    $this->setDragImage3($image_id);
                }
            } else if (get_input("delete_drag_image_2", false)) {
                $image = new Image($this->getDragImage3());
                if ($image->delete()) $this->setDragImage3(NULL);
            }

            // DG IMG 4
            $drag_image_4 = get_file("drag_image_input_3");
            if (!isset($drag_image_4["error"]) || $drag_image_4["error"] == 0) {
                if ($this->getDragImage4() > 0) {
                    $image = new Image($this->getDragImage4());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($drag_image_4);
                if ($image_id) {
                    $this->setDragImage4($image_id);
                }
            } else if (get_input("delete_drag_image_3", false)) {
                $image = new Image($this->getDragImage4());
                if ($image->delete()) $this->setDragImage4(NULL);
            }

            // DG IMG 5
            $drag_image_5 = get_file("drag_image_input_4");
            if (!isset($drag_image_5["error"]) || $drag_image_5["error"] == 0) {
                if ($this->getDragImage5() > 0) {
                    $image = new Image($this->getDragImage5());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($drag_image_5);
                if ($image_id) {
                    $this->setDragImage5($image_id);
                }
            } else if (get_input("delete_drag_image_4", false)) {
                $image = new Image($this->getDragImage5());
                if ($image->delete()) $this->setDragImage5(NULL);
            }

            // DG IMG 6
            $drag_image_6 = get_file("drag_image_input_5");
            if (!isset($drag_image_6["error"]) || $drag_image_6["error"] == 0) {
                if ($this->getDragImage6() > 0) {
                    $image = new Image($this->getDragImage6());
                } else {
                    $image = new Image();
                }
                $image_id = $image->upload($drag_image_6);
                if ($image_id) {
                    $this->setDragImage6($image_id);
                }
            } else if (get_input("delete_drag_image_5", false)) {
                $image = new Image($this->getDragImage6());
                if ($image->delete()) $this->setDragImage6(NULL);
            }

            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 buildFromXML($obj, $version=1, $folder=0) {
        var_dump($obj);exit;
        //parent::buildFromXML($obj);
     }
}
?>