<?php
/* For licensing terms, see /license.txt */
/**
 * 	@author Thomas Depraetere
 * 	@author Hugues Peeters
 * 	@author Christophe Gesche
 * 	@author Sebastien Piraux
 *
 * 	@package chamilo.tracking

 */
/**
 * Code
 */
// TODO: Is this file deprecated?

/* 		INIT SECTION */
$uInfo = $_REQUEST['uInfo'];
if (!isset($_REQUEST['reqdate'])) {
    $reqdate = time();
} else {
    $reqdate = $_REQUEST['reqdate'];
}
$period = $_REQUEST['period'];
if (!isset($_REQUEST['view'])) {
    $view = "0000000";
} else {
    $view = $_REQUEST['view'];
}
include('../inc/global.inc.php');

$interbreadcrumb[] = array("url" => "../user/user.php", "name" => get_lang('Users'));

$nameTools = get_lang('ToolName');

$htmlHeadXtra[] = "<style type='text/css'>
/*<![CDATA[*/
.secLine {background-color : #E6E6E6;}
.content {padding-left : 15px;padding-right : 15px; }
.specialLink{color : #0000FF;}
/*]]>*/
</style>
<style media='print' type='text/css'>
/*<![CDATA[*/
td {border-bottom: thin dashed gray;}
/*]]>*/
</style>";

$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
$TABLECOURSE_GROUPSUSER = Database::get_course_table(TABLE_GROUP_USER);
$TABLEUSER = Database::get_main_table(TABLE_MAIN_USER);
$TABLETRACK_ACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS);
Display::display_header($nameTools, "Tracking");

$courseId = api_get_course_int_id();

// the variables for the days and the months
// Defining the shorts for the days
$DaysShort = api_get_week_days_short();
// Defining the days of the week to allow translation of the days
$DaysLong = api_get_week_days_long();
// Defining the months of the year to allow translation of the months
$MonthsLong = api_get_months_long();
// Defining the months of the year to allow translation of the months
$MonthsShort = api_get_months_short();

$is_allowedToTrack = $is_groupTutor; // allowed to track only user of one group
$is_allowedToTrackEverybodyInCourse = $is_courseAdmin; // allowed to track all student in course
?>
<h3>
    <?php echo $nameTools ?>
</h3>
<table width="100%" cellpadding="2" cellspacing="3" border="0">
    <?php
    // check if uid is tutor of this group
    $courseId = api_get_course_int_id();

    if (( $is_allowedToTrack || $is_allowedToTrackEverybodyInCourse)) {
        if ($is_allowedToTrackEverybodyInCourse) {
            $sql = "SELECT u.firstname,u.lastname, u.email
                    FROM $TABLECOURSUSER cu , $TABLEUSER u
                    WHERE
                        cu.user_id = u.user_id AND
                        cu.relation_type<>" . COURSE_RELATION_TYPE_RRHH . " AND
                        cu.c_id = '$courseId' AND
                        u.user_id = '$uInfo'";
        } else {
            $sql = "SELECT u.firstname,u.lastname, u.email
                    FROM $TABLECOURSE_GROUPSUSER gu , $TABLEUSER u
                    WHERE gu.user_id = u.user_id
                        AND gu.group_id = '$_gid'
                        AND u.user_id = '$uInfo'";
        }
        $query = Database::query($sql);
        $res = @Database::fetch_array($query);
        if (is_array($res)) {
            $res[2] == "" ? $res2 = get_lang('NoEmail') : $res2 = Display::encrypted_mailto_link($res[2]);

            echo "<tr><td>";
            echo $informationsAbout . " : <br>";
            echo "<ul>\n"
            . "<li>" . get_lang('FirstName') . " : " . $res[0] . "</li>\n"
            . "<li>" . get_lang('LastName') . " : " . $res[1] . "</li>\n"
            . "<li>" . get_lang('Email') . " : " . $res2 . "</li>\n"
            . "</ul>";
            echo "</td></tr>";
            /*             * ***** MENU ******* */
            echo "<tr>
                <td>
                [<a href='userLog.php?uInfo=$uInfo&view=$view'>" . get_lang('Back') . "</a>]
        ";
            echo "  &nbsp;&nbsp;&nbsp;||&nbsp;&nbsp;&nbsp;
                [<a href='" . api_get_self() . "?uInfo=$uInfo&view=$view&period=week&reqdate=$reqdate' class='specialLink'>" . get_lang('PeriodWeek') . "</a>]
                [<a href='" . api_get_self() . "?uInfo=$uInfo&view=$view&period=month&reqdate=$reqdate' class='specialLink'>" . get_lang('PeriodMonth') . "</a>]
                &nbsp;&nbsp;&nbsp;||&nbsp;&nbsp;&nbsp;
        ";
            switch ($period) {
                case "week" :
                    // previous and next date must be evaluated
                    $previousReqDate = $reqdate - 7 * 86400;
                    $nextReqDate = $reqdate + 7 * 86400;
                    echo "
                    [<a href='" . api_get_self() . "?uInfo=$uInfo&view=$view&period=week&reqdate=$previousReqDate' class='specialLink'>" . get_lang('PreviousWeek') . "</a>]
                    [<a href='" . api_get_self() . "?uInfo=$uInfo&view=$view&period=week&reqdate=$nextReqDate' class='specialLink'>" . get_lang('NextWeek') . "</a>]
                ";
                    break;
                default :
                    $period = "month";
                case "month" :
                    // previous and next date must be evaluated
                    // 30 days should be a good approximation
                    $previousReqDate = mktime(1, 1, 1, date("m", $reqdate) - 1, 1, date("Y", $reqdate));
                    $nextReqDate = mktime(1, 1, 1, date("m", $reqdate) + 1, 1, date("Y", $reqdate));
                    echo "
                    [<a href='" . api_get_self() . "?uInfo=$uInfo&view=$view&period=month&reqdate=$previousReqDate' class='specialLink'>" . get_lang('PreviousMonth') . "</a>]
                    [<a href='" . api_get_self() . "?uInfo=$uInfo&view=$view&period=month&reqdate=$nextReqDate' class='specialLink'>" . get_lang('NextMonth') . "</a>]
                ";
                    break;
            }
            echo "
                </td>
            </tr>
        ";
            /*             * ***** END OF MENU ******* */

        switch ($period) {
            case "month" :
                $sql = "SELECT access_date
                        FROM $TABLETRACK_ACCESS
                        WHERE access_user_id = $uInfo
                        AND c_id = $courseId
                        AND MONTH(access_date) = MONTH( FROM_UNIXTIME('$reqdate') )
                        AND YEAR(access_date) = YEAR(FROM_UNIXTIME('$reqdate'))
                        GROUP BY DAYOFMONTH(access_date)
                        ORDER BY access_date ASC";
                $displayedDate = $MonthsLong[date("n", $reqdate) - 1] . date(" Y", $reqdate);
                break;
            case "week" :
                $sql = "SELECT access_date
                        FROM $TABLETRACK_ACCESS
                        WHERE access_user_id = $uInfo
                        AND c_id = $courseId
                        AND WEEK(access_date) = WEEK( FROM_UNIXTIME('$reqdate') )
                        AND YEAR(access_date) = YEAR(FROM_UNIXTIME('$reqdate'))
                        GROUP BY DAYOFMONTH(access_date)
                        ORDER BY access_date ASC";
                $weeklowreqdate = ($reqdate - (86400 * date("w", $reqdate)));
                $weekhighreqdate = ($reqdate + (86400 * (6 - date("w", $reqdate)) ));
                $displayedDate = get_lang('From') . " " . date("d ", $weeklowreqdate) . $MonthsLong[date("n", $weeklowreqdate) - 1] . date(" Y", $weeklowreqdate)
                        . " " . get_lang('To') . " " . date("d ", $weekhighreqdate) . $MonthsLong[date("n", $weekhighreqdate) - 1] . date(" Y", $weekhighreqdate);
                break;
        }
        echo "<tr><td>";
        $results = StatsUtils::getManyResults1Col($sql);
        /*             * * display of the displayed period  ** */
        echo "<table width='100%' cellpadding='2' cellspacing='1' border='0' align=center>";
        echo "<td bgcolor='#E6E6E6'>" . $displayedDate . "</td>";
        if (is_array($results)) {
            for ($j = 0; $j < sizeof($results); $j++) {
                $beautifulDateTime = api_convert_and_format_date($results[$j], null, date_default_timezone_get());
                echo "<tr>";
                echo "<td style='padding-left : 40px;' valign='top'>" . $beautifulDateTime . "</td>";
                echo"</tr>";
                // $limit is used to select only results between $results[$j] (current login) and next one
                if ($j == ( sizeof($results) - 1 ))
                    $limit = date("Y-m-d H:i:s", $nextReqDate);
                else
                    $limit = $results[$j + 1];
                // select all access to tool between displayed date and next displayed date or now() if
                // displayed date is the last login date
                $sql = "SELECT access_tool, count(access_tool)
                        FROM $TABLETRACK_ACCESS
                        WHERE access_user_id = $uInfo
                            AND access_tool IS NOT NULL
                            AND access_date > '" . $results[$j] . "'
                            AND access_date < '" . $limit . "'
                            AND c_id = $courseId
                        GROUP BY access_tool
                        ORDER BY access_tool ASC";
                $results2 = StatsUtils::getManyResults2Col($sql);

                if (is_array($results2)) {
                    echo "<tr><td colspan='2'>\n";
                    echo "<table width='50%' cellpadding='0' cellspacing='0' border='0'>\n";
                    for ($k = 0; $k < count($results2); $k++) {
                        echo "<tr>\n";
                        echo "<td width='70%' style='padding-left : 60px;'>" . get_lang($results2[$k][0]) . "</td>\n";
                        echo "<td width='30%' align='right' style='padding-right : 40px'>" . $results2[$k][1] . " " . get_lang('Visits') . "</td>\n";
                        echo "</tr>";
                    }
                    echo "</table>\n";
                    echo "</td></tr>\n";
                }
                $previousDate = $value;
            }
        } else {
            echo "<tr>";
            echo "<td colspan='2' bgcolor='#eeeeee'>" . get_lang('NoResult') . "</td>";
            echo "</tr>";
        }
        echo "</table>";
        echo "</td></tr>";
    } else {
        echo get_lang('ErrorUserNotInGroup');
    }
} else {
    // not allowed
    api_not_allowed();
}
?>
</table>
    <?php
    Display::display_footer();
