<?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/>.

/**
 * Request access key to AirNotifier
 *
 * @package    message_airnotifier
 * @copyright  2012 Jerome Mouneyrac
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require('../../../config.php');

$PAGE->set_url(new moodle_url('/message/output/airnotifier/requestaccesskey.php'));
$PAGE->set_context(context_system::instance());

require_login();
require_sesskey();
require_capability('moodle/site:config', context_system::instance());

$strheading = get_string('requestaccesskey', 'message_airnotifier');
$PAGE->navbar->add(get_string('administrationsite'));
$PAGE->navbar->add(get_string('plugins', 'admin'));
$PAGE->navbar->add(get_string('messageoutputs', 'message'));
$returl = new moodle_url('/admin/settings.php', array('section' => 'messagesettingairnotifier'));
$PAGE->navbar->add(get_string('pluginname', 'message_airnotifier'), $returl);
$PAGE->navbar->add($strheading);

$PAGE->set_heading($strheading);
$PAGE->set_title($strheading);

$msg = "";

// If we are requesting a key to the official message system, verify first that this site is registered.
// This check is also done in Airnotifier.
if (strpos($CFG->airnotifierurl, message_airnotifier_manager::AIRNOTIFIER_PUBLICURL) !== false ) {
    $adminrenderer = $PAGE->get_renderer('core', 'admin');
    $msg = $adminrenderer->warn_if_not_registered();
    if ($msg) {
        $msg .= html_writer::div(get_string('sitemustberegistered', 'message_airnotifier'));

        echo $OUTPUT->header();
        echo $OUTPUT->box($msg, 'generalbox');
        echo $OUTPUT->footer();
        die;
    }
}

echo $OUTPUT->header();

$manager = new message_airnotifier_manager();
$warnings = [];

if ($key = $manager->request_accesskey()) {
    set_config('airnotifieraccesskey', $key);
    $msg = $OUTPUT->box(get_string('keyretrievedsuccessfully', 'message_airnotifier'), 'generalbox alert alert-success');

    // Check mobile notifications.
    $processors = get_message_processors();
    $enabled = false;
    foreach ($processors as $processor => $status) {
        if ($processor == 'airnotifier' && $status->enabled) {
            $enabled = true;
        }
    }

    if (!$enabled) {
        // Airnotifier processor isn't enabled. Warn the user.
        $warnings[] = [
            'msg' => get_string('mobilenotificationsdisabledwarning', 'tool_mobile'),
            'linkmsg' => get_string('enableprocessor', 'message_airnotifier'),
            'linkurl' => new moodle_url('/admin/message.php'),
        ];
    }

    if (empty($CFG->enablemobilewebservice)) {
        // Mobile web services not enabled. Warn the user.
        $warnings[] = [
            'msg' => get_string('mobilenotconfiguredwarning', 'admin'),
            'linkmsg' => get_string('enablemobilewebservice', 'admin'),
            'linkurl' => new moodle_url('/admin/search.php', ['query' => 'enablemobilewebservice']),
        ];
    }
} else {
    $msg = $OUTPUT->box(get_string('errorretrievingkey', 'message_airnotifier'), 'generalbox alert alert-danger');
}

// Display the warnings.
foreach ($warnings as $warning) {
    if (!empty($warning['linkurl'])) {
        $warning['msg'] = $warning['msg'] . '&nbsp;' . html_writer::tag('a', $warning['linkmsg'], ['href' => $warning['linkurl']]);
    }

    $msg .= $OUTPUT->box($warning['msg'], 'generalbox alert alert-warning');
}

$msg .= $OUTPUT->continue_button($returl);

echo $OUTPUT->box($msg, 'generalbox ');
echo $OUTPUT->footer();