<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Display details of an issued badge with criteria and evidence
 *
 * @package    core
 * @subpackage badges
 * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
 */

require_once(__DIR__ . '/../config.php');
require_once($CFG->libdir . '/badgeslib.php');
require_once($CFG->libdir . '/filelib.php');

$id = required_param('hash', PARAM_ALPHANUM);
$bake = optional_param('bake', 0, PARAM_BOOL);

$PAGE->set_context(context_system::instance());
$output = $PAGE->get_renderer('core', 'badges');

$PAGE->set_url('/badges/badge.php', array('hash' => $id));
$PAGE->set_pagelayout('base');
$PAGE->set_title(get_string('issuedbadge', 'badges'));

$badge = new \core_badges\output\issued_badge($id);
if (!empty($badge->recipient->id)) {
    if ($bake && ($badge->recipient->id == $USER->id)) {
        $name = str_replace(' ', '_', $badge->badgeclass['name']) . '.png';
        $name = clean_param($name, PARAM_FILE);
        $filehash = badges_bake($id, $badge->badgeid, $USER->id, true);
        $fs = get_file_storage();
        $file = $fs->get_file_by_hash($filehash);
        send_stored_file($file, 0, 0, true, array('filename' => $name));
    }

    if (isloggedin()) {
        $PAGE->set_heading($badge->badgeclass['name']);
        $PAGE->navbar->add($badge->badgeclass['name']);
        if ($badge->recipient->id == $USER->id) {
            $url = new moodle_url('/badges/mybadges.php');
        } else {
            $url = new moodle_url($CFG->wwwroot);
        }
        navigation_node::override_active_url($url);
    } else {
        $PAGE->set_heading($badge->badgeclass['name']);
        $PAGE->navbar->add($badge->badgeclass['name']);
        $url = new moodle_url($CFG->wwwroot);
        navigation_node::override_active_url($url);
    }

    echo $OUTPUT->header();

    echo $output->render($badge);
} else {
    echo $OUTPUT->header();

    echo $OUTPUT->container($OUTPUT->error_text(get_string('error:badgeawardnotfound', 'badges')) .
                            html_writer::tag('p', $OUTPUT->close_window_button()), 'important', 'notice');
}

// Trigger event, badge viewed.
$other = array('badgeid' => $badge->badgeid, 'badgehash' => $id);
$eventparams = array('context' => $PAGE->context, 'other' => $other);

// If the badge does not belong to this user, log it appropriately.
if (($badge->recipient->id != $USER->id)) {
    $eventparams['relateduserid'] = $badge->recipient->id;
}

$event = \core\event\badge_viewed::create($eventparams);
$event->trigger();

echo $OUTPUT->footer();