<?php
/* For licensing terms, see /license.txt */

use ChamiloSession as Session;

/**
*	This file saves every click in the hotspot tool into track_e_hotspots
*	@package chamilo.exercise
* 	@author Toon Keppens
* 	@version $Id: admin.php 10680 2007-01-11 21:26:23Z pcool $
*/
require_once __DIR__.'/../inc/global.inc.php';
$courseCode = $_GET['coursecode'];
$questionId = $_GET['questionId'];
$coordinates = $_GET['coord'];
$objExercise = Session::read('objExercise');
$exerciseId = $objExercise->selectId();
// Save clicking order
$answerOrderId = count($_SESSION['exerciseResult'][$questionId]['ids']) + 1;
if ($_GET['answerId'] == "0") {
    // click is NOT on a hotspot
    $hit = 0;
    $answerId = null;
} else {
    // user clicked ON a hotspot
    $hit = 1;
    $answerId = api_substr($_GET['answerId'], 22, 2);
	// Save into session
	$_SESSION['exerciseResult'][$questionId][$answerId] = $hit;
}
//round-up the coordinates
$coords = explode('/', $coordinates);
$coordinates = '';
foreach ($coords as $coord) {
    list($x, $y) = explode(';', $coord);
    $coordinates .= round($x).';'.round($y).'/';
}
$coordinates = substr($coordinates, 0, -1);

$TBL_TRACK_E_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
// Save into db
$params = [
    'user_id' => api_get_user_id(),
    'course_id' => $courseCode,
    'quiz_id' => $exerciseId,
    'question_id' => $questionId,
    'answer_id' =>  $answerId,
    'correct' => $hit,
    'coordinate' => $coordinates
];
// Save insert id into session if users changes answer.
$insert_id = Database::insert($TBL_TRACK_E_HOTSPOT, $params);

$_SESSION['exerciseResult'][$questionId]['ids'][$answerOrderId] = $insert_id;