<?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/>.

namespace mod_bigbluebuttonbn\local\exceptions;

/**
 * Class server_not_available_exception
 *
 * This kind of error cannot be recovered and should be displayed to the user
 * signaling that there is an error in the configuration.
 *
 * @package   mod_bigbluebuttonbn
 * @copyright 2010 onwards, Blindside Networks Inc
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @author    Laurent David  (laurent [at] call-learning [dt] fr)
 */
class server_not_available_exception extends \moodle_exception {

    /**
     * Constructor
     *
     * @param string $errorcode The name of the string from error.php to print
     * @param string $module name of module
     * @param string $link The url where the user will be prompted to continue. If no url is provided the user will be directed to
     *     the site index page.
     * @param mixed $a Extra words and phrases that might be required in the error string
     * @param string $debuginfo optional debugging information
     */
    public function __construct($errorcode, $module = '', $link = '', $a = null, $debuginfo = null) {
        global $CFG;
        $hasdebugdeveloper = (
            isset($CFG->debugdisplay) &&
            isset($CFG->debug) &&
            $CFG->debugdisplay &&
            $CFG->debug === DEBUG_DEVELOPER
        );
        if ($hasdebugdeveloper && is_null($debuginfo)) {
            $debuginfo = $this->getTraceAsString();
        }
        parent::__construct($errorcode, $module, $link, $a, $debuginfo);
    }
}