<?php
// This file is part of the htmlcert module for 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/>.

/**
 * This file contains the form for handling the layout of the htmlcert instance.
 *
 * @package    mod_htmlcert
 * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace mod_htmlcert;

defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');

require_once($CFG->dirroot . '/course/moodleform_mod.php');

/**
 * The form for handling the layout of the htmlcert instance.
 *
 * @package    mod_htmlcert
 * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class edit_form extends \moodleform {

    /**
     * @var int The id of the template being used.
     */
    protected $tid = null;

    /**
     * Form definition.
     */
    public function definition() {
        global $DB, $OUTPUT;

        $mform =& $this->_form;

        $mform->addElement('text', 'name', get_string('name', 'htmlcert'), 'maxlength="255"');
        $mform->setType('name', PARAM_TEXT);
        $mform->addRule('name', null, 'required');

        $mform->addElement('textarea', 'html', get_string('html', 'htmlcert'));
        $mform->setType('html', PARAM_RAW);

        // Add the submit buttons.
        $group = array();
        $group[] = $mform->createElement('submit', 'submitbtn', get_string('savechanges'));
        $group[] = $mform->createElement('submit', 'previewbtn', get_string('savechangespreview', 'htmlcert'), array(), false);
        $mform->addElement('group', 'submitbtngroup', '', $group, '', false);
    }

    /**
     * Fill in the current page data for this htmlcert.
     */
    public function definition_after_data() {
        global $DB;
        $mform = $this->_form;
    }

    /**
     * Some basic validation.
     *
     * @param array $data
     * @param array $files
     * @return array the errors that were found
     */
    public function validation($data, $files) {
        $errors = parent::validation($data, $files);

        if (\core_text::strlen($data['name']) > 255) {
            $errors['name'] = get_string('nametoolong', 'htmlcert');
        }

        return $errors;
    }

    /**
     * Adds the page elements to the form.
     *
     * @param \stdClass $page the htmlcert page
     */
    protected function add_htmlcert_page_elements($page) {
        global $DB, $OUTPUT;

        // Create the form object.
        $mform =& $this->_form;

        $editlink = '/mod/htmlcert/edit.php';
        $editlinkparams = array('tid' => $this->tid, 'sesskey' => sesskey());

        $mform->addElement('text', 'pagewidth', get_string('width', 'htmlcert'));
        $mform->setType('pagewidth', PARAM_INT);
        $mform->setDefault('pagewidth', '210');
        $mform->addRule('pagewidth', null, 'required', null, 'client');
        $mform->addHelpButton('pagewidth', 'width', 'htmlcert');

        $mform->addElement('text', 'pageheight', get_string('height', 'htmlcert'));
        $mform->setType('pageheight', PARAM_INT);
        $mform->setDefault('pageheight', '297');
        $mform->addRule('pageheight', null, 'required', null, 'client');
        $mform->addHelpButton('pageheight', 'height', 'htmlcert');

    }
}