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

/**
 * Report
 * @package chamilo.tracking
 */

$cidReset = true;
require_once '../inc/global.inc.php';

$this_section = "session_my_space";

$is_allowedToTrack = $is_courseAdmin || $is_platformAdmin || $is_courseCoach || $is_sessionAdmin;

if (!$is_allowedToTrack) {
	Display :: display_header(null);
	api_not_allowed();
	Display :: display_footer();
}

$export_to_xls = false;
if (isset($_GET['export'])) {
	$export_to_xls = true;
}

if (api_is_platform_admin() ) {
	$global = true;
} else {
	$global = false;
}
$global = true;

$course_list = $course_select_list = array();
$html_result = '';
$course_select_list[0] = get_lang('None');

$htmlHeadXtra[] = '
<script type="text/javascript">
function load_courses() {
	document.search_simple.submit();
}
</script>';

$session_id = isset($_REQUEST['session_id']) ? intval($_REQUEST['session_id']) : null;

if (empty($session_id)) {
	$temp_course_list = CourseManager :: get_courses_list();
} else {
	$temp_course_list = SessionManager::get_course_list_by_session_id($session_id);
}

foreach ($temp_course_list  as $temp_course_item) {
	$course_item = CourseManager ::get_course_information($temp_course_item['code']);
	$course_select_list[$temp_course_item['code']]	= $course_item['title'];
}

//Get session list
$session_list = SessionManager::get_sessions_list(array(), array('name'));

$my_session_list = array();
$my_session_list[0] = get_lang('None');
foreach ($session_list as $sesion_item) {
    $my_session_list[$sesion_item['id']] = $sesion_item['name'];
}

$form = new FormValidator('search_simple', 'POST', '', '', null, false);
$form->addElement(
    'select',
    'session_id',
    get_lang('Sessions'),
    $my_session_list,
    array('id'=>'session_id', 'onchange'=>'load_courses();')
);
$form->addElement(
    'select',
    'course_code',
    get_lang('Courses'),
    $course_select_list
);
$form->addButtonFilter(get_lang('Filter'), 'submit_form');

if (!empty($_REQUEST['course_code'])) {
    $course_code = $_REQUEST['course_code'];
} else {
    $course_code = '';
}

if (empty($course_code)) {
    $course_code = 0;
}

$form->setDefaults(array('course_code'=>(string)$course_code));

$course_info = api_get_course_info($course_code);

if (!empty($course_info)) {
	$list = new LearnpathList('', $course_code);
	$lp_list = $list->get_flat_list();

	$main_question_list = array();

	foreach ($lp_list as $lp_id => $lp) {
        $exercise_list = Event::get_all_exercises_from_lp(
            $lp_id,
            $course_info['real_id']
        );

		foreach ($exercise_list as $exercise) {
			$my_exercise = new Exercise($course_info['real_id']);
			$my_exercise->read($exercise['path']);
			$question_list = $my_exercise->selectQuestionList();

			$exercise_stats = Event::get_all_exercise_event_from_lp(
				$exercise['path'],
				$course_info['real_id'],
				$session_id
			);

			foreach ($question_list as $question_id) {
				$question_data = Question::read($question_id);
				$main_question_list[$question_id] = $question_data;
				$quantity_exercises = 0;
				$question_result = 0;

				foreach ($exercise_stats as $stats) {
					if (!empty($stats['question_list'])) {
						foreach($stats['question_list'] as $my_question_stat) {
							if ($question_id == $my_question_stat['question_id']) {
								$question_result =  $question_result + $my_question_stat['marks'];
								$quantity_exercises++;
							}
						}
					}
				}

				if (!empty($quantity_exercises)) {
					// Score % average
					$main_question_list[$question_id]->results = ($question_result / ($quantity_exercises));
				} else {
					$main_question_list[$question_id]->results = 0;
				}

				$main_question_list[$question_id]->quantity = $quantity_exercises;
			}
		}
	}
}

if (!$export_to_xls) {
	Display :: display_header(get_lang("MySpace"));
	echo '<div class="actions">';
	if ($global) {
		echo MySpace::getTopMenu();
	} else {
		echo '<div style="float:left; clear:left">
				<a href="courseLog.php?'.api_get_cidreq().'&studentlist=true">'.
                    get_lang('StudentsTracking').'</a>&nbsp;|
				<a href="courseLog.php?'.api_get_cidreq().'&studentlist=false">'.
                    get_lang('CourseTracking').'</a>&nbsp;';
		echo '</div>';
	}
	echo '</div>';

	if (api_is_platform_admin()) {
		echo MySpace::getAdminActions();
	}
	echo '<br />';
	echo '<h2>'.get_lang('LPQuestionListResults').'</h2>';

	$form->display();

	if (empty($course_code)) {
		Display::display_warning_message(get_lang('PleaseSelectACourse'));
	}
}

$course_average = array();
$counter = 0;

if (!empty($main_question_list) && is_array($main_question_list)) {
	$html_result .= '<table  class="data_table">';
	$html_result .= '<tr><th>'.get_lang('Question').
                    Display :: return_icon('info3.gif', get_lang('QuestionsAreTakenFromLPExercises'), array('align' => 'absmiddle', 'hspace' => '3px')).'</th>';
	$html_result .= '<th>'.$course_info['visual_code'].' '.get_lang('AverageScore').Display :: return_icon('info3.gif', get_lang('AllStudentsAttemptsAreConsidered'), array('align' => 'absmiddle', 'hspace' => '3px')).' </th>';
	$html_result .= '<th>'.get_lang('Quantity').'</th>';

	foreach ($main_question_list as $question) {
		$total_student = 0;
		$counter ++;
		$s_css_class = 'row_even';
		if ($counter % 2 ==0 ) {
			$s_css_class = 'row_odd';
		}
		$html_result .= "<tr class='$s_css_class'>
							<td >";
		$question_title = trim($question->question);
		if (empty($question_title)) {
			$html_result .= get_lang('Untitled').' '.get_lang('Question').' #'.$question->id;
		} else {
			$html_result .= $question->question;
		}

		$html_result .= "</td>";
		$html_result .= "<td>";
		$html_result .= round($question->results, 2).' / '.$question->weighting;
		$html_result .= "</td>";

		$html_result .= "<td>";
		$html_result .= $question->quantity;
		$html_result .= "</td>";
	}

	$html_result .="</tr>";
	$html_result .= '</table>';
} else {
	if (!empty($course_code)) {
		Display::display_warning_message(get_lang('NoResults'));
	}
}

if (!$export_to_xls) {
	echo $html_result;
}

Display :: display_footer();
