<?php
//$Id: myStudents.php 21874 2009-07-08 08:45:18Z herodoto $
/* For licensing terms, see /dokeos_license.txt */
/**
 * Implements the tracking of students in the Reporting pages
 * @package dokeos.mySpace
 */

// name of the language file that needs to be included
$language_file = array('registration', 'index', 'tracking', 'exercice', 'admin');


require '../inc/global.inc.php';
require_once api_get_path(LIBRARY_PATH).'tracking.lib.php';
require_once api_get_path(LIBRARY_PATH).'export.lib.inc.php';
require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
require_once api_get_path(LIBRARY_PATH).'course.lib.php';
require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpath.class.php';
require_once api_get_path(SYS_CODE_PATH).'mySpace/myspace.lib.php';

$htmlHeadXtra[] = '<script type="text/javascript">

function show_image(image,width,height) {
	width = parseInt(width) + 20;
	height = parseInt(height) + 20;
	window_x = window.open(image,\'windowX\',\'width=\'+ width + \', height=\'+ height + \'\');
}

</script>';

$export_csv = isset ($_GET['export']) && $_GET['export'] == 'csv' ? true : false;

if ($export_csv) {
	ob_start();
}
$csv_content = array ();

$from_myspace = false;
if (isset ($_GET['from']) && $_GET['from'] == 'myspace') {
	$from_myspace = true;
	$this_section = "session_my_space";
} else {
	$this_section = SECTION_COURSES;
}

$nameTools = get_lang("StudentDetails");
//$nameTools = SECTION_PLATFORM_ADMIN;
$cidReset = true;
$get_course_code = Security :: remove_XSS($_GET['course']);
if (isset ($_GET['details'])) {
	if (!empty ($_GET['origin']) && $_GET['origin'] == 'user_course') {
		$course_info = CourseManager :: get_course_information($get_course_code);
		if (empty ($cidReq)) {
			$interbreadcrumb[] = array (
				"url" => api_get_path(WEB_COURSE_PATH) . $course_info['directory'],
				'name' => $course_info['title']
			);
		}
		$interbreadcrumb[] = array (
			"url" => "../user/user.php?cidReq=" . $get_course_code,
			"name" => get_lang("Users")
		);
	} else
		if (!empty ($_GET['origin']) && $_GET['origin'] == 'tracking_course') {
			$course_info = CourseManager :: get_course_information($get_course_code);
			if (empty ($cidReq)) {
				//$interbreadcrumb[] = array ("url" => api_get_path(WEB_COURSE_PATH).$course_info['directory'], 'name' => $course_info['title']);
			}
			$interbreadcrumb[] = array (
				"url" => "../tracking/courseLog.php?cidReq=" . $get_course_code . '&studentlist=true&id_session=' . (empty ($_SESSION['id_session']) ? '' : $_SESSION['id_session']),
				"name" => get_lang("Tracking")
			);
		} else
			if (!empty ($_GET['origin']) && $_GET['origin'] == 'resume_session') {
				$interbreadcrumb[] = array (
					'url' => '../admin/index.php',
					"name" => get_lang('PlatformAdmin')
				);
				$interbreadcrumb[] = array (
					'url' => "../admin/session_list.php",
					"name" => get_lang('SessionList')
				);
				$interbreadcrumb[] = array (
					'url' => "../admin/resume_session.php?id_session=" . Security :: remove_XSS($_GET['id_session']),
					"name" => get_lang('SessionOverview')
				);
			} else {
				$interbreadcrumb[] = array (
					"url" => "index.php",
					"name" => get_lang('MySpace')
				);
				if (isset ($_GET['id_coach']) && intval($_GET['id_coach']) != 0) {
					$interbreadcrumb[] = array (
						"url" => "student.php?id_coach=" . Security :: remove_XSS($_GET['id_coach']),
						"name" => get_lang("CoachStudents")
					);
					$interbreadcrumb[] = array (
						"url" => "myStudents.php?student=" . Security :: remove_XSS($_GET['student']) . '&id_coach=' . Security :: remove_XSS($_GET['id_coach']),
						"name" => get_lang("StudentDetails")
					);
				} else {
					$interbreadcrumb[] = array (
						"url" => "student.php",
						"name" => get_lang("MyStudents")
					);
					$interbreadcrumb[] = array (
						"url" => "myStudents.php?student=" . Security :: remove_XSS($_GET['student']),
						"name" => get_lang("StudentDetails")
					);
				}
			}
	$nameTools = get_lang("DetailsStudentInCourse");
} else {
	if (!empty ($_GET['origin']) && $_GET['origin'] == 'resume_session') {
		$interbreadcrumb[] = array (
			'url' => '../admin/index.php',
			"name" => get_lang('PlatformAdmin')
		);
		$interbreadcrumb[] = array (
			'url' => "../admin/session_list.php",
			"name" => get_lang('SessionList')
		);
		$interbreadcrumb[] = array (
			'url' => "../admin/resume_session.php?id_session=" . Security :: remove_XSS($_GET['id_session']),
			"name" => get_lang('SessionOverview')
		);
	} else {
		$interbreadcrumb[] = array (
			"url" => "index.php",
			"name" => get_lang('MySpace')
		);
		if (isset ($_GET['id_coach']) && intval($_GET['id_coach']) != 0) {
			if (isset ($_GET['id_session']) && intval($_GET['id_session']) != 0) {
				$interbreadcrumb[] = array (
					"url" => "student.php?id_coach=" . Security :: remove_XSS($_GET['id_coach']) . "&id_session=" . $_GET['id_session'],
					"name" => get_lang("CoachStudents")
				);
			} else {
				$interbreadcrumb[] = array (
					"url" => "student.php?id_coach=" . Security :: remove_XSS($_GET['id_coach']),
					"name" => get_lang("CoachStudents")
				);
			}
		} else {
			$interbreadcrumb[] = array (
				"url" => "student.php",
				"name" => get_lang("MyStudents")
			);
		}
	}
}

api_block_anonymous_users();

if (!api_is_allowed_to_edit() && !api_is_coach() && $_user['status'] != DRH && $_user['status'] != SESSIONADMIN && !api_is_platform_admin(true)) {
	api_not_allowed(true);
}

Display :: display_header($nameTools);

/*
 * ======================================================================================
 * 	FUNCTIONS
 * ======================================================================================
 */

function is_teacher($course_code) {
	global $_user;
	$tbl_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
	$sql = "SELECT 1 FROM $tbl_course_user WHERE user_id='" . $_user["user_id"] . "' AND course_code='" . Database :: escape_string($course_code) . "' AND status='1'";
	$result = Database::query($sql, __FILE__, __LINE__);
	if (Database :: result($result) != 1) {
		return true;
	} else {
		return false;
	}
}

/*
 *===============================================================================
 *	MAIN CODE
 *===============================================================================
 */
// Database Table Definitions
$tbl_user = Database :: get_main_table(TABLE_MAIN_USER);
$tbl_session_user = Database :: get_main_table(TABLE_MAIN_SESSION_USER);
$tbl_session = Database :: get_main_table(TABLE_MAIN_SESSION);
$tbl_session_course = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE);
$tbl_session_course_user = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$tbl_course = Database :: get_main_table(TABLE_MAIN_COURSE);
$tbl_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$tbl_stats_exercices = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
$tbl_stats_exercices_attempts = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
//$tbl_course_lp_view = Database :: get_course_table(TABLE_LP_VIEW);
//$tbl_course_lp_view_item = Database :: get_course_table(TABLE_LP_ITEM_VIEW);
//$tbl_course_lp_item = Database :: get_course_table(TABLE_LP_ITEM);

$tbl_course_lp_view = 'lp_view';
$tbl_course_lp_view_item = 'lp_item_view';
$tbl_course_lp_item = 'lp_item';
$tbl_course_lp = 'lp';
$tbl_course_quiz = 'quiz';
$course_quiz_question = 'quiz_question';
$course_quiz_rel_question = 'quiz_rel_question';
$course_quiz_answer = 'quiz_answer';
$course_student_publication = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);

if (isset ($_GET["user_id"]) && $_GET["user_id"] != "") {
	$user_id = intval($_GET['user_id']);
} else {
	$user_id = $_user['user_id'];
}

if (!empty ($_GET['student'])) {

	$student_id = intval($_GET['student']);

	// infos about user
	$info_user = UserManager :: get_user_info_by_id($student_id);
	if ($_user['status'] == DRH && $info_user['hr_dept_id'] != $_user['user_id']) {
		api_not_allowed();
	}

	$info_user['name'] = api_get_person_name($info_user['firstname'], $info_user['lastname']);

	// Actions bar
	echo '<div class="actions">';
	echo '<a href="javascript: void(0);" onclick="javascript: window.print();"><img src="../img/printmgr.gif">&nbsp;' . get_lang('Print') . '</a>';
	echo '<a href="' . api_get_self() . '?' . Security :: remove_XSS($_SERVER['QUERY_STRING']) . '&export=csv"><img src="../img/excel.gif">&nbsp;' . get_lang('ExportAsCSV') . '</a>';
	if (!empty ($info_user['email'])) {
		$send_mail = Display :: return_icon('send_mail.gif', get_lang('SendMail')) . ' ' . Display :: encrypted_mailto_link($info_user['email'], get_lang('SendMail'));
	} else {
		$send_mail = Display :: return_icon('send_mail.gif', get_lang('SendMail')) . ' ' . get_lang('SendMail');
	}
	echo $send_mail;
	if (!empty ($_GET['student']) && !empty ($_GET['course'])) { //only show link to connection details if course and student were defined in the URL
		echo '<a href="access_details.php?student=' . Security :: remove_XSS($_GET['student']) . '&course=' . Security :: remove_XSS($_GET['course']) . '&amp;origin=' . Security :: remove_XSS($_GET['origin']) . '&amp;cidReq=' . Security :: remove_XSS($_GET['course']) . '">' . Display :: return_icon('statistics.gif', get_lang('AccessDetails')) . ' ' . get_lang('AccessDetails') . '</a>';
	}
	echo '</div>';

	// is the user online ?	
	$student_online = Security :: remove_XSS($_GET['student']);
	$users_online = WhoIsOnline(30);
	foreach ($users_online as $online) {
		if (in_array($_GET['student'], $online)) {
			$online = get_lang('Yes');
			break;
		} else {
			$online = get_lang('No');
		}
	}

	$avg_student_progress = $avg_student_score = $nb_courses = 0;
	$sql = 'SELECT course_code FROM ' . $tbl_course_user . ' WHERE user_id=' . Database :: escape_string($info_user['user_id']);
	$rs = Database::query($sql, __FILE__, __LINE__);
	$courses = array ();
	while ($row = Database :: fetch_array($rs)) {
		$courses[$row['course_code']] = $row['course_code'];
	}

	// get the list of sessions where the user is subscribed as student
	$sql = 'SELECT DISTINCT course_code FROM ' . Database :: get_main_table(TABLE_MAIN_SESSION_COURSE_USER) . ' WHERE id_user=' . intval($info_user['user_id']);
	$rs = Database::query($sql, __FILE__, __LINE__);
	while ($row = Database :: fetch_array($rs)) {
		$courses[$row['course_code']] = $row['course_code'];
	}

	$course_id = Security :: remove_XSS($_GET['course']);
	if (!CourseManager :: is_user_subscribed_in_course($info_user['user_id'], $course_id, true)) {
		unset ($courses[$key]);
	} else {
		$nb_courses++;
		$avg_student_progress = Tracking :: get_avg_student_progress($info_user['user_id'], $course_id);
		//the score inside the Reporting table
		$avg_student_score = Tracking :: get_average_test_scorm_and_lp($info_user['user_id'], $course_id);
	}

	$avg_student_progress = round($avg_student_progress, 2);
	$avg_student_score = round($avg_student_score, 2);

	$first_connection_date = Tracking :: get_first_connection_date($info_user['user_id']);
	if ($first_connection_date == '') {
		$first_connection_date = get_lang('NoConnexion');
	}

	$last_connection_date = Tracking :: get_last_connection_date($info_user['user_id'], true);
	if ($last_connection_date == '') {
		$last_connection_date = get_lang('NoConnexion');
	}

	$time_spent_on_the_course = api_time_to_hms(Tracking :: get_time_spent_on_the_course($info_user['user_id'], $course_id));
	// cvs informations
	$csv_content[] = array (
		get_lang('Informations', '')
	);
	$csv_content[] = array (
		get_lang('Name', ''),
		get_lang('Email', ''),
		get_lang('Tel', '')
	);
	$csv_content[] = array (
		$info_user['name'],
		$info_user['email'],
		$info_user['phone']
	);

	$csv_content[] = array ();

	// csv tracking
	$csv_content[] = array (
		get_lang('Tracking', '')
	);
	$csv_content[] = array (
		get_lang('FirstLogin', ''),
		get_lang('LatestLogin', ''),
		get_lang('TimeSpentInTheCourse', ''),
		get_lang('Progress', ''),
		get_lang('Score', '')
	);
	$csv_content[] = array (
		strip_tags($first_connection_date),
		strip_tags($last_connection_date),
		$time_spent_on_the_course,
		$avg_student_progress . '%',
		$avg_student_score . '%'
	);
?>
	<a name="infosStudent"></a>
				<table width="100%" border="0" >
					<tr>
<?php
	$image_array = UserManager :: get_user_picture_path_by_id($info_user['user_id'], 'web', false, true);
	echo '<td class="borderRight" width="10%" valign="top">';

	// get the path,width and height from original picture
	$image_file = $image_array['dir'] . $image_array['file'];
	$big_image = $image_array['dir'] . 'big_' . $image_array['file'];
	$big_image_size = api_getimagesize($big_image);
	$big_image_width = $big_image_size[0];
	$big_image_height = $big_image_size[1];
	$url_big_image = $big_image . '?rnd=' . time();
	$img_attributes = 'src="' . $image_file . '?rand=' . time() . '" ' .
	'alt="' . api_get_person_name($info_user['lastname'], $info_user['firstname']) . '" ' .
	'style="float:' . ($text_dir == 'rtl' ? 'left' : 'right') . '; padding:5px;" ';

	if ($image_array['file'] == 'unknown.jpg') {
		echo '<img ' . $img_attributes . ' />';
	} else {
		echo '<input type="image" ' . $img_attributes . ' onclick="javascript: return show_image(\'' . $url_big_image . '\',\'' . $big_image_width . '\',\'' . $big_image_height . '\');"/>';
	}
	echo '</td>';
?>
			<td width="40%" valign="top">
				<table width="100%" class="data_table">
								<tr>
									<th>
										<?php echo get_lang('Information'); ?>
									</th>
								</tr>
								<tr>
						<td>
										<?php

	echo get_lang('Name') . ' : ';
	echo $info_user['name'];
?>
									</td>
								</tr>
								<tr>
						<td>
										<?php

	echo get_lang('Email') . ' : ';
	if (!empty ($info_user['email'])) {
		echo '<a href="mailto:' . $info_user['email'] . '">' . $info_user['email'] . '</a>';
	} else {
		echo get_lang('NoEmail');
	}
?>
									</td>
								</tr>
								<tr>
						<td>
										<?php

	echo get_lang('Tel') . '. ';

	if (!empty ($info_user['phone'])) {
		echo $info_user['phone'];
	} else {
		echo get_lang('NoTel');
	}
?>
									</td>
								</tr>
								<tr>
						<td>
										<?php

	echo get_lang('OfficialCode') . ' : ';

	if (!empty ($info_user['official_code'])) {
		echo $info_user['official_code'];
	} else {
		echo get_lang('NoOfficialCode');
	}
?>
									</td>
								</tr>
								<tr>
						<td>
										<?php

	echo get_lang('OnLine') . ' : ';
	echo $online;
?>
									</td>
								</tr>
							</table>
						</td>
						<td class="borderLeft" width="35%" valign="top">

				<table width="100%" class="data_table">
								<tr>
						<th colspan="2">
										<?php echo get_lang('Tracking'); ?>
									</th>
								</tr>
								<tr>
						<td align="right">
													<?php echo get_lang('FirstLogin') ?>
												</td>
						<td align="left">
													<?php echo $first_connection_date ?>
												</td>
											</tr>
											<tr>
						<td align="right">
													<?php echo get_lang('LatestLogin') ?>
												</td>
						<td align="left">
													<?php echo $last_connection_date ?>
												</td>
											</tr>
											<tr>
						<td align="right">
													<?php echo get_lang('TimeSpentInTheCourse') ?>
												</td>
						<td align="left">
													<?php echo $time_spent_on_the_course ?>
												</td>
											</tr>
											<tr>
						<td align="right">
													<?php

	echo get_lang('Progress');
	Display :: display_icon('info3.gif', get_lang('ScormAndLPProgressTotalAverage'), array (
		'align' => 'absmiddle',
		'hspace' => '3px'
	));
?>
												</td>
						<td align="left">
													<?php echo $avg_student_progress.'%' ?>
												</td>
											</tr>
											<tr>
						<td align="right">
													<?php

	echo get_lang('Score');
	Display :: display_icon('info3.gif', get_lang('ScormAndLPTestTotalAverage'), array (
		'align' => 'absmiddle',
		'hspace' => '3px'
	));
?>
												</td>
						<td align="left">
													<?php  echo $avg_student_score.'%' ?>
												</td>
											</tr>
										</table>
									</td>
					</tr>
				</table>

	<table class="data_table">
		<tr>
			<td colspan="5" style="border-width: 0px;">&nbsp;</td>
		</tr>
<?php

	if (!empty ($_GET['details'])) {
		$course_code_info = Security :: remove_XSS($_GET['course']);
		$info_course = CourseManager :: get_course_information($course_code_info);

		//get coach and session_name if there is one and if session_mode is activated
		if (api_get_setting('use_session_mode') == 'true') {
			$tbl_user = Database :: get_main_table(TABLE_MAIN_USER);
			$tbl_session = Database :: get_main_table(TABLE_MAIN_SESSION);
			$tbl_session_course = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE);
			$tbl_session_course_user = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE_USER);

			$sql = 'SELECT id_session
					FROM ' . $tbl_session_course_user . ' session_course_user
					WHERE session_course_user.id_user = ' . intval($info_user['user_id']) . '
					AND session_course_user.course_code = "' . Database :: escape_string($course_code_info) . '"
					ORDER BY id_session DESC';
			$rs = Database::query($sql, __FILE__, __LINE__);
			$num_row = Database :: num_rows($rs);
			if ($num_row > 0) {
				
				
				
				$le_session_id = intval(Database :: result($rs, 0, 0));
				if ($le_session_id > 0) {
					
					
					// get session name and coach of the session
					$sql = 'SELECT name, id_coach FROM ' . $tbl_session . '
							WHERE id=' . $le_session_id;
					$rs = Database::query($sql, __FILE__, __LINE__);
					$session_name = Database :: result($rs, 0, 'name');
					$session_coach_id = intval(Database :: result($rs, 0, 'id_coach'));

					// get coach of the course in the session
					$sql = 'SELECT id_user FROM ' . $tbl_session_course_user . '
							WHERE id_session=' . $le_session_id . '
							AND course_code = "' . Database :: escape_string($_GET['course']) . '" AND status=2';					
					/*
					$sql = 'SELECT id_coach FROM ' . $tbl_session_course . '
							WHERE id_session=' . $le_session_id . '
							AND course_code = "' . Database :: escape_string($_GET['course']) . '"';
					*/
							
					$rs = Database::query($sql, __FILE__, __LINE__);
					//$session_course_coach_id = intval(Database :: result($rs, 0, 0));
					$course_coachs = array();
					while ($row_coachs = Database::fetch_array($rs)) {
						$course_coachs[] = $row_coachs['id_user'];
					}

					if (!empty($course_coachs)) {
						$info_tutor_name = array();
						foreach ($course_coachs as $course_coach) {
							$coach_infos = UserManager :: get_user_info_by_id($course_coach);
							$info_tutor_name[] = api_get_person_name($coach_infos['firstname'], $coach_infos['lastname']);	
						}
						$info_course['tutor_name'] = implode(",",$info_tutor_name);						
					}
					
					/*if ($session_course_coach_id != 0) {
						$coach_infos = UserManager :: get_user_info_by_id($session_course_coach_id);
						$info_course['tutor_name'] = api_get_person_name($coach_infos['firstname'], $coach_infos['lastname']);
					}*/
					elseif ($session_coach_id != 0) {
						$coach_infos = UserManager :: get_user_info_by_id($session_coach_id);
						$info_course['tutor_name'] = api_get_person_name($coach_infos['firstname'], $coach_infos['lastname']);
					}
				}
			}
		} // end if(api_get_setting('use_session_mode')=='true')

		$date_start = '';
		if (!empty ($info_course['date_start'])) {
			$date_start = explode('-', $info_course['date_start']);
			$date_start = $date_start[2] . '/' . $date_start[1] . '/' . $date_start[0];
		}
		$date_end = '';
		if (!empty ($info_course['date_end'])) {
			$date_end = explode('-', $info_course['date_end']);
			$date_end = $date_end[2] . '/' . $date_end[1] . '/' . $date_end[0];
		}
		$dateSession = get_lang('From') . ' ' . $date_start . ' ' . get_lang('To') . ' ' . $date_end;
		$nb_login = Tracking :: count_login_per_student($info_user['user_id'], $_GET['course']);
		$table_title = $info_course['title'] . '&nbsp;|&nbsp;' . get_lang('CountToolAccess') . ' : ' . $nb_login . '&nbsp; | &nbsp;' . get_lang('Tutor') . ' : ' . stripslashes($info_course['tutor_name']) . ((!empty ($session_name)) ? ' | ' . get_lang('Session') . ' : ' . $session_name : '');

		$csv_content[] = array ();
		$csv_content[] = array (str_replace('&nbsp;', '', $table_title));
?>
		<tr>
			<td colspan="6">
					<strong><?php echo $table_title; ?></strong>
			</td>
		</tr>
	</table>

	<!-- line about learnpaths -->
				<table class="data_table">
					<tr>
						<th>
							<?php echo get_lang('Learnpaths');?>
						</th>
						<th>
							<?php

		echo get_lang('Time');
		Display :: display_icon('info3.gif', get_lang('TotalTimeByCourse'), array (
			'align' => 'absmiddle',
			'hspace' => '3px'
		));
?>
						</th>
						<th>
							<?php

		echo get_lang('Score');
		Display :: display_icon('info3.gif', get_lang('LPTestScore'), array (
			'align' => 'absmiddle',
			'hspace' => '3px'
		));
?>
						</th>
						<th>
							<?php

		echo get_lang('Progress');
		Display :: display_icon('info3.gif', get_lang('LPProgressScore'), array (
			'align' => 'absmiddle',
			'hspace' => '3px'
		));
?>
						</th>
						<th>
							<?php

		echo get_lang('LastConnexion');
		Display :: display_icon('info3.gif', get_lang('LastTimeTheCourseWasUsed'), array (
			'align' => 'absmiddle',
			'hspace' => '3px'
		));
?>
						</th>
						<th>
							<?php echo get_lang('Details');?>
						</th>
					</tr>
<?php

		$headerLearnpath = array (
			get_lang('Learnpath'),
			get_lang('Time'),
			get_lang('Progress'),
			get_lang('LastConnexion')
		);

		$t_lp = Database :: get_course_table(TABLE_LP_MAIN, $info_course['db_name']);
		$t_lpi = Database :: get_course_table(TABLE_LP_ITEM, $info_course['db_name']);
		$t_lpv = Database :: get_course_table(TABLE_LP_VIEW, $info_course['db_name']);
		$t_lpiv = Database :: get_course_table(TABLE_LP_ITEM_VIEW, $info_course['db_name']);

		$tbl_stats_exercices = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
		$tbl_stats_attempts = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
		$tbl_quiz_questions = Database :: get_course_table(TABLE_QUIZ_QUESTION, $info_course['db_name']);

		$sql_learnpath = "	SELECT lp.name,lp.id
							FROM $t_lp AS lp ORDER BY lp.name ASC";

		$result_learnpath = Database::query($sql_learnpath, __FILE__, __LINE__);

		$csv_content[] = array ();
		$csv_content[] = array (
			get_lang('Learnpath', ''),
			get_lang('Time', ''),
			get_lang('Score', ''),
			get_lang('Progress', ''),
			get_lang('LastConnexion', '')
		);

		if (Database :: num_rows($result_learnpath) > 0) {
			$i = 0;
			while ($learnpath = Database :: fetch_array($result_learnpath)) {
				$any_result = false;
				$progress = learnpath :: get_db_progress($learnpath['id'], $student_id, '%', $info_course['db_name'], true);
				if ($progress === null) {
					$progress = '0%';
				} else {
					$any_result = true;
				}

				// calculates time
				$sql = 'SELECT SUM(total_time)
												FROM ' . $t_lpiv . ' AS item_view
												INNER JOIN ' . $t_lpv . ' AS view
													ON item_view.lp_view_id = view.id
													AND view.lp_id = ' . $learnpath['id'] . '
													AND view.user_id = ' . intval($_GET['student']);
				$rs = Database::query($sql, __FILE__, __LINE__);
				$total_time = 0;
				if (Database :: num_rows($rs) > 0) {
					$total_time = Database :: result($rs, 0, 0);
					if ($total_time > 0)
						$any_result = true;
				}

				// calculates last connection time
				$sql = 'SELECT MAX(start_time)
												FROM ' . $t_lpiv . ' AS item_view
												INNER JOIN ' . $t_lpv . ' AS view
													ON item_view.lp_view_id = view.id
													AND view.lp_id = ' . $learnpath['id'] . '
													AND view.user_id = ' . intval($_GET['student']);
				$rs = Database::query($sql, __FILE__, __LINE__);
				$start_time = null;
				if (Database :: num_rows($rs) > 0) {
					$start_time = Database :: result($rs, 0, 0);
					if ($start_time > 0)
						$any_result = true;
				}

				//QUIZZ IN LP
				$score = Tracking :: get_avg_student_score(intval($_GET['student']), Database :: escape_string($_GET['course']), array (
					$learnpath['id']
				));

				if (empty ($score)) {
					//$score = 0;
				}
				if ($i % 2 == 0) {
					$css_class = "row_odd";
				} else {
					$css_class = "row_even";
				}

				$i++;

				$csv_content[] = array (
					api_html_entity_decode(stripslashes($learnpath['name']), ENT_QUOTES, $charset),
					api_time_to_hms($total_time),
					$score . '%',
					$progress,
					date('Y-m-d', $start_time)
				);
?>
					<tr class="<?php echo $css_class;?>">
						<td>
							<?php echo stripslashes($learnpath['name']); ?>
						</td>
						<td align="center">
						<?php echo api_time_to_hms($total_time) ?>
						</td>
						<td align="center">
							<?php

				if (!is_null($score)) {
					echo $score . '%';
				} else {
					if ('0' == $progress {
						0 }) {
						echo '/';
					} else {
						echo '0%';
					}
					$score = 0;
				}
?>
						</td>
						<td align="center">
							<?php echo $progress ?>
						</td>
						<td align="center">
							<?php
				if ($start_time != '' && $start_time > 0) {
					echo format_locale_date(get_lang('DateFormatLongWithoutDay'), $start_time);
				} else {
					echo '-';
				}
?>
						</td>
						<td align="center">
							<?php
				if ($any_result === true) {
					$from = '';
					if ($from_myspace) {
						$from ='&from=myspace';
					}
?>
					<a href="lp_tracking.php?course=<?php echo Security::remove_XSS($_GET['course']).$from; ?>&origin=<?php echo Security::remove_XSS($_GET['origin']) ?>&lp_id=<?php echo $learnpath['id']?>&student_id=<?php echo $info_user['user_id'] ?>">
						<img src="../img/2rightarrow.gif" border="0" />
					</a>
					<?php
				}
?>
						</td>
					</tr>
				<?php
				$data_learnpath[$i][] = $learnpath['name'];
				$data_learnpath[$i][] = $progress . '%';
				$i++;
			}
		} else {
			echo "	<tr>
										<td colspan='6'>
											" . get_lang('NoLearnpath') . "
										</td>
									</tr>
								 ";
		}
?>
				</table>

	<!-- line about exercises -->
			<table class="data_table">
				<tr>
					<th>
						<?php echo get_lang('Exercices'); ?>
					</th>
					<th>
						<?php echo get_lang('Score').Display :: return_icon('info3.gif', get_lang('LastScoreTest'), array('align' => 'absmiddle', 'hspace' => '3px')) ?>
					</th>
					<th>
						<?php echo get_lang('Attempts'); ?>
					</th>
					<th>
						<?php echo get_lang('CorrectTest'); ?>
					</th>
				</tr>
			<?php

		$csv_content[] = array ();
		$csv_content[] = array (
			get_lang('Exercices'),
			get_lang('Score'),
			get_lang('Attempts')
		);

		$info_course = CourseManager :: get_course_information(Security :: remove_XSS($_GET['course']));
		$t_tool = Database :: get_course_table(TABLE_TOOL_LIST, $info_course['db_name']);
		$sql = 'SELECT visibility FROM ' . $t_tool . ' WHERE name="quiz"';

		$result_visibility_quizz = Database::query($sql, __FILE__, __LINE__);
		$t_quiz = Database :: get_course_table(TABLE_QUIZ_TEST, $info_course['db_name']);

		if (Database :: result($result_visibility_quizz, 0, 'visibility') == 1) {

			$sql_exercices = "SELECT quiz.title,id
												FROM " . $t_quiz . " AS quiz
												WHERE active='1' ORDER BY quiz.title ASC
												";

			$result_exercices = Database::query($sql_exercices, __FILE__, __LINE__);
			$i = 0;
			$is_student = Security :: remove_XSS($_GET['student']);
			if (Database :: num_rows($result_exercices) > 0) {
				while ($exercices = Database :: fetch_array($result_exercices)) {
					$sql_essais = "SELECT COUNT(ex.exe_id) as essais
															FROM $tbl_stats_exercices AS ex
															WHERE  ex.exe_cours_id = '" . $info_course['code'] . "'
															AND ex.exe_exo_id = " . $exercices['id'] . "
															AND orig_lp_id = 0
															AND orig_lp_item_id = 0
															AND exe_user_id='" . Database :: escape_string($is_student) . "'";
					$result_essais = Database::query($sql_essais, __FILE__, __LINE__);
					$essais = Database :: fetch_array($result_essais);

					$sql_score = "SELECT exe_id, exe_result,exe_weighting
														 FROM $tbl_stats_exercices
														 WHERE exe_user_id = " . Database :: escape_string($is_student) . "
														 AND exe_cours_id = '" . $info_course['code'] . "'
														 AND exe_exo_id = " . $exercices['id'] . "
														 AND orig_lp_id = 0
														 AND orig_lp_item_id = 0
														 ORDER BY exe_date DESC LIMIT 1";

					$result_score = Database::query($sql_score, __FILE__, __LINE__);
					$score = 0;
					while ($scores = Database :: fetch_array($result_score)) {
						$score = $score + $scores['exe_result'];
						$weighting = $weighting + $scores['exe_weighting'];
						$exe_id = $scores['exe_id'];
					}
					$score_percentage = 0;
					if ($weighting != 0) {
						//i.e 10.50
						$score_percentage = round(($score * 100) / $weighting, 2);
					} else {
						$score_percentage = null;
					}

					$weighting = 0;

					$csv_content[] = array (
						$exercices['title'],
						$score_percentage . '%',
						$essais['essais']
					);

					if ($i % 2 == 0) {
						$css_class = "row_odd";
					} else {
						$css_class = "row_even";
					}

					$i++;

					echo '<tr class="' . $css_class . '">
													<td>
										 ';
					echo $exercices['title'];
					echo "	</td>
												 ";
					echo "	<td align='center'>
												  ";
					if ($essais['essais'] > 0) {
						echo $score_percentage . '%';
					} else {
						echo '/';
						$score_percentage = 0;
					}

					echo "	</td>
													<td align='center'>
												 ";
					echo $essais['essais'];
					echo "	</td>
													<td align='center'>
												 ";

					$sql_last_attempt = 'SELECT exe_id FROM ' . $tbl_stats_exercices . ' WHERE exe_exo_id="' . $exercices['id'] . '" AND exe_user_id="' . Security :: remove_XSS($_GET['student']) . '" AND exe_cours_id="' . $info_course['code'] . '" AND orig_lp_id = 0 AND orig_lp_item_id = 0 ORDER BY exe_date DESC LIMIT 1';
					$result_last_attempt = Database::query($sql_last_attempt, __FILE__, __LINE__);
					if (Database :: num_rows($result_last_attempt) > 0) {
						$id_last_attempt = Database :: result($result_last_attempt, 0, 0);

						if ($essais['essais'] > 0)
							echo '<a href="../exercice/exercise_show.php?id=' . $id_last_attempt . '&cidReq=' . $info_course['code'] . '&student=' . Security :: remove_XSS($_GET['student']) . '&origin=' . (empty ($_GET['origin']) ? 'tracking' : Security :: remove_XSS($_GET['origin'])) . '"> <img src="' . api_get_path(WEB_IMG_PATH) . 'quiz.gif" border="0" /> </a>';
					}
					echo "	</td>
												  </tr>
												 ";
					$data_exercices[$i][] = $exercices['title'];
					$data_exercices[$i][] = $score_percentage . '%';
					$data_exercices[$i][] = $essais['essais'];
					//$data_exercices[$i][] =  corrections;
					$i++;

				}
			} else {
				echo "	<tr>
												<td colspan='6'>
													" . get_lang('NoExercise') . "
												</td>
											</tr>
										 ";
			}
		} else {
			echo "	<tr>
										<td colspan='6'>
											" . get_lang('NoExercise') . "
										</td>
									</tr>
								 ";
		}
?>
					</table>

	<!-- line about other tools -->
			<table class="data_table">
	<tr>
		<td>
			<?php

		$csv_content[] = array ();

		$nb_assignments 		= Tracking :: count_student_assignments($info_user['user_id'], $info_course['code']);
		$messages 				= Tracking :: count_student_messages($info_user['user_id'], $info_course['code']);
		$links 					= Tracking :: count_student_visited_links($info_user['user_id'], $info_course['code']);
		$documents				= Tracking :: count_student_downloaded_documents($info_user['user_id'], $info_course['code']);
		$chat_last_connection 	= Tracking :: chat_last_connection($info_user['user_id'], $info_course['code']);

		$csv_content[] = array (
			get_lang('Student_publication'),
			$nb_assignments
		);
		$csv_content[] = array (
			get_lang('Messages'),
			$messages
		);
		$csv_content[] = array (
			get_lang('LinksDetails'),
			$links
		);
		$csv_content[] = array (
			get_lang('DocumentsDetails'),
			$documents
		);
		$csv_content[] = array (
			get_lang('ChatLastConnection'),
			$chat_last_connection
		);
?>
				<tr>
					<th colspan="2">
						<?php echo get_lang('OtherTools'); ?>
					</th>
				</tr>
				<tr><!-- assignments -->
					<td width="40%">
						<?php echo get_lang('Student_publication') ?>
					</td>
					<td>
						<?php echo $nb_assignments ?>
					</td>
				</tr>
				<tr><!-- messages -->
					<td>
						<?php echo get_lang('Messages') ?>
					</td>
					<td>
						<?php echo $messages ?>
					</td>
				</tr>
				<tr><!-- links -->
					<td>
						<?php echo get_lang('LinksDetails') ?>
					</td>
					<td>
						<?php echo $links ?>
					</td>
				</tr>
				<tr><!-- documents -->
					<td>
						<?php echo get_lang('DocumentsDetails') ?>
					</td>
					<td>
						<?php echo $documents ?>
					</td>
				</tr>
				<tr><!-- Chats -->
					<td>
						<?php echo get_lang('ChatLastConnection') ?>
					</td>
					<td>
						<?php echo $chat_last_connection; ?>
					</td>
				</tr>
			</table>
			</td>
		</tr>
		</table>
<?php

	} else {
?>
		<tr>
			<th>
				<?php echo get_lang('Course'); ?>
			</th>
			<th>
				<?php echo get_lang('Time'); ?>
			</th>
			<th>
				<?php echo get_lang('Progress'); ?>
			</th>
			<th>
				<?php echo get_lang('Score'); ?>
			</th>
			<th>
				<?php echo get_lang('Details'); ?>
			</th>
		</tr>
<?php

		if (!api_is_platform_admin(true) && $_user['status'] != DRH) {
			// courses followed by user where we are coach
			if (!isset ($_GET['id_coach'])) {
				$courses = Tracking :: get_courses_followed_by_coach($_user['user_id']);
			} else {
				$courses = Tracking :: get_courses_followed_by_coach(Security :: remove_XSS($_GET['id_coach']));
			}
		}
		if (count($courses) > 0) {
			$csv_content[] = array ();
			$csv_content[] = array (
				get_lang('Course', ''),
				get_lang('Time', ''),
				get_lang('Progress', ''),
				get_lang('Score', '')
			);
			foreach ($courses as $course_code) {
				if (CourseManager :: is_user_subscribed_in_course($student_id, $course_code, true)) {
					$course_info = CourseManager :: get_course_information($course_code);
					$time_spent_on_course = api_time_to_hms(Tracking :: get_time_spent_on_the_course($info_user['user_id'], $course_code));
					$progress = Tracking :: get_avg_student_progress($info_user['user_id'], $course_code);
					$score = Tracking :: get_avg_student_score($info_user['user_id'], $course_code);
					$progress = empty($progress) ? '0%' : $progress.'%';
					$score = empty($score) ? '0%' : $score.'%';
					$csv_content[] = array (
						$course_info['title'],
						$time_spent_on_course,
						$progress,
						$score
					);
					echo '
										<tr>
											<td align="right">
												' . $course_info['title'] . '
											</td>
											<td align="right">
												' . $time_spent_on_course . '
											</td>
											<td align="right">
												' . $progress . '
											</td>
											<td align="right">
												' . $score . '
											</td>';
					if (isset ($_GET['id_coach']) && intval($_GET['id_coach']) != 0) {
						echo '<td align="center" width="10">
														<a href="' . api_get_self() . '?student=' . $info_user['user_id'] . '&details=true&course=' . $course_info['code'] . '&id_coach=' . Security :: remove_XSS($_GET['id_coach']) . '&origin=' . Security :: remove_XSS($_GET['origin']) . '&id_session=' . Security :: remove_XSS($_GET['id_session']) . '#infosStudent"><img src="' . api_get_path(WEB_IMG_PATH) . '2rightarrow.gif" border="0" /></a>
													</td>';
					} else {
						echo '<td align="center" width="10">
														<a href="' . api_get_self() . '?student=' . $info_user['user_id'] . '&details=true&course=' . $course_info['code'] . '&origin=' . Security :: remove_XSS($_GET['origin']) . '&id_session=' . Security :: remove_XSS($_GET['id_session']) . '#infosStudent"><img src="' . api_get_path(WEB_IMG_PATH) . '2rightarrow.gif" border="0" /></a>
													</td>';
					}
					echo '</tr>';
				}

			}
		} else {
			echo "<tr>
								<td colspan='5'>
									" . get_lang('NoCourse') . "
								</td>
							  </tr>
							 ";
		}
	} //end of else !empty($details)
?>
	</table>
	<br />
<?php

	if (!empty ($_GET['details']) && $_GET['origin'] != 'tracking_course' && $_GET['origin'] != 'user_course') {
?>

		<br /><br />
<?php

	}
	if (!empty ($_GET['exe_id'])) {
		$t_q = Database :: get_course_table(TABLE_QUIZ_TEST, $info_course['db_name']);
		$t_qq = Database :: get_course_table(TABLE_QUIZ_QUESTION, $info_course['db_name']);
		$t_qa = Database :: get_course_table(TABLE_QUIZ_ANSWER, $info_course['db_name']);
		$t_qtq = Database :: get_course_table(TABLE_QUIZ_TEST_QUESTION, $info_course['db_name']);
		$sql_exercice_details = "SELECT qq.question, qq.ponderation, qq.id
						 				FROM " . $t_qq . " as qq
										INNER JOIN " . $t_qtq . " as qrq
											ON qrq.question_id = qq.id
											AND qrq.exercice_id = " . intval($_GET['exe_id']);

		$result_exercice_details = Database::query($sql_exercice_details, __FILE__, __LINE__);

		$sql_ex_name = "SELECT quiz.title
								FROM " . $t_q . " AS quiz
							 	WHERE quiz.id = " . intval($_GET['exe_id']);
		;

		$resultExName = Database::query($sql_ex_name, __FILE__, __LINE__);
		$exName = Database :: fetch_array($resultExName);

		echo "<table class='data_table'>
					 	<tr>
							<th colspan='2'>
								" . $exName['title'] . "
							</th>
						</tr>
		             ";

		while ($exerciceDetails = Database :: fetch_array($result_exercice_details)) {
			$sqlAnswer = "	SELECT qa.comment, qa.answer
										FROM  " . $t_qa . " as qa
										WHERE qa.question_id = " . $exerciceDetails['id'];

			$resultAnswer = Database::query($sqlAnswer, __FILE__, __LINE__);

			echo "<a name='infosExe'></a>";

			echo "
						<tr>
							<td colspan='2'>
								<strong>" . $exerciceDetails['question'] . ' /' . $exerciceDetails['ponderation'] . "</strong>
							</td>
						</tr>
						";
			while ($answer = Database :: fetch_array($resultAnswer)) {
				echo "
								<tr>
									<td>
										" . $answer['answer'] . "
									</td>
									<td>
								";
				if (!empty ($answer['comment']))
					echo $answer['comment'];
				else
					echo get_lang('NoComment');
				echo "
									</td>
								</tr>
								";
			}
		}
		echo "</table>";
	}
	//YW - commented out because it doesn't seem to be used
	//$header = array_merge($headerLearnpath,$headerExercices,$headerProductions);
}
if ($export_csv) {
	ob_end_clean();
	Export :: export_table_csv($csv_content, 'reporting_student');
}
/*
==============================================================================
		FOOTER
==============================================================================
*/
Display :: display_footer();
