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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Manager helper class.
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*
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* @package block_dedication
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* @copyright 2022 University of Canterbury
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* @author Pramith Dayananda <pramithd@catalyst.net.nz>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace block_dedication\lib;
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use block_dedication\lib\utils;
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/**
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* Generate dedication reports based in passed params.
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*/
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class manager {
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/** @var stdclass Course */
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protected $course;
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/** @var int $mintime - unix timestamp. */
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protected $mintime;
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/** @var int $maxtime - unix timestamp. */
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protected $maxtime;
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/** @var int $limit - duration in seconds. */
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protected $limit;
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/**
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* Construtor.
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*
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* @param stdclass $course
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* @param int $mintime
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* @param int $maxtime
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*/
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public function __construct($course, $mintime = null, $maxtime = null) {
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$this->course = $course;
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$startdate = empty($course->startdate) ? time() - (90 * DAYSECS) : $course->startdate;
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$this->mintime = !empty($mintime) ? $mintime : $startdate;
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$this->maxtime = empty($maxtime) ? time() : $maxtime;
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$limit = get_config('block_dedication', 'session_limit');
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$this->limit = empty($limit) ? HOURSECS : $limit;
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}
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/**
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* Get dedication for a specific user.
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*
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* @param stdclass|int $user
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* @param boolean $simple
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* @return void
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*/
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public function get_user_dedication($user, $simple = false) {
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$config = get_config('block_dedication');
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if (is_numeric($user)) {
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$userid = $user;
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} else {
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$userid = $user->id;
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}
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$where = 'courseid = :courseid AND userid = :userid AND timecreated >= :mintime AND timecreated <= :maxtime ' .
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'AND origin != :origin';
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$params = array(
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'courseid' => $this->course->id,
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'userid' => $userid,
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'mintime' => $this->mintime,
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'maxtime' => $this->maxtime,
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'origin' => 'cli',
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);
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$logs = utils::get_events_select($where, $params);
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if ($simple) {
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// Return total dedication time in seconds.
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$total = 0;
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if ($logs) {
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$previouslog = array_shift($logs);
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$previouslogtime = $previouslog->time;
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$sessionstart = $previouslogtime;
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foreach ($logs as $log) {
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if (($log->time - $previouslogtime) > $this->limit) {
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$dedication = $previouslogtime - $sessionstart;
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$total += $dedication;
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$sessionstart = $log->time;
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}
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$previouslogtime = $log->time;
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}
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$dedication = $previouslogtime - $sessionstart;
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$total += $dedication;
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}
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return $total;
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} else {
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// Return user sessions with details.
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$rows = array();
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if ($logs) {
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$previouslog = array_shift($logs);
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$previouslogtime = $previouslog->time;
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$sessionstart = $previouslogtime;
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$ips = array($previouslog->ip => true);
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foreach ($logs as $log) {
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if (($log->time - $previouslogtime) > $this->limit) {
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$dedication = $previouslogtime - $sessionstart;
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// Ignore sessions with a really short duration.
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if ($dedication > $config->ignore_sessions_limit) {
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$rows[] = (object) array('start_date' => $sessionstart, 'dedicationtime' => $dedication);
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$ips = array();
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}
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$sessionstart = $log->time;
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}
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$previouslogtime = $log->time;
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$ips[$log->ip] = true;
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}
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$dedication = $previouslogtime - $sessionstart;
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// Ignore sessions with a really short duration.
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if ($dedication > $config->ignore_sessions_limit) {
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$rows[] = (object) array('start_date' => $sessionstart, 'dedicationtime' => $dedication);
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}
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}
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return $rows;
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}
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}
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}
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