<?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/>.

/**
 * Manage H5P libraries settings page.
 *
 * @package    core_h5p
 * @copyright  2019 Amaia Anabitarte <[email protected]>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once(__DIR__ . '/../config.php');

require_login(null, false);

$context = context_system::instance();
require_capability('moodle/h5p:updatelibraries', $context);

$pagetitle = get_string('h5pmanage', 'core_h5p');
$url = new \moodle_url("/h5p/libraries.php");

$PAGE->set_context($context);
$PAGE->set_url($url);
$PAGE->set_pagelayout('admin');
$PAGE->set_title("$SITE->shortname: " . $pagetitle);
$PAGE->set_heading($SITE->fullname);

echo $OUTPUT->header();
echo $OUTPUT->heading($pagetitle);
echo $OUTPUT->box(get_string('librariesmanagerdescription', 'core_h5p'));

$form = new \core_h5p\form\uploadlibraries_form();
$h5pfactory = new \core_h5p\factory();
if ($data = $form->get_data()) {
    require_sesskey();

    // Get the file from the users draft area.
    $usercontext = context_user::instance($USER->id);
    $fs = get_file_storage();
    $files = $fs->get_area_files($usercontext->id, 'user', 'draft', $data->h5ppackage, 'id',
        false);
    $file = reset($files);

    // Validate and save the H5P package.
    // Because we are passing skipcontent = true to save_h5p function, the returning value is false in an error
    // is encountered, null when successfully saving the package without creating the content.
    if (\core_h5p\helper::save_h5p($h5pfactory, $file, new stdClass(), false, true) === false) {
        echo $OUTPUT->notification(get_string('invalidpackage', 'core_h5p'), 'error');
    } else {
        echo $OUTPUT->notification(get_string('uploadsuccess', 'core_h5p'), 'success');
    }
}
$form->display();

// Load installed Libraries.
$framework = $h5pfactory->get_framework();
$libraries = $framework->loadLibraries();
$installed = [];
foreach ($libraries as $libraryname => $versions) {
    foreach ($versions as $version) {
        $installed[] = $version;
    }
}

if (count($installed)) {
    echo $OUTPUT->render_from_template('core_h5p/h5plibraries', (object)['contenttypes' => $installed]);
}

echo $OUTPUT->footer();