<?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/>.

/**
 * Reset-to-default controls for access settings (role mapping + feature matrix).
 *
 * @package    mod_meetletacbfree
 * @copyright  2026 MeetLet <info@meetlet.net>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace mod_meetletacbfree\admin;

use mod_meetletacbfree\local\icons;

defined('MOODLE_INTERNAL') || die();

/**
 * Shared reset button, modal, and client strings for the access settings tab.
 */
class access_reset_ui {
    /** @var bool */
    protected static $assetsrendered = false;

    /**
     * Toolbar with a section-specific reset button.
     */
    public static function toolbar(string $section): string {
        if ($section === 'rolemapping') {
            $label = get_string('reset_rolemapping', 'meetletacbfree');
        } else if ($section === 'featureaccess') {
            $label = get_string('reset_featureaccess', 'meetletacbfree');
        } else {
            return '';
        }

        return \html_writer::div(
            \html_writer::tag('button',
                icons::svg('refresh') .
                \html_writer::span($label, 'meetlet-btn-with-icon__label'),
                [
                    'type' => 'button',
                    'class' => 'meetlet-settings-btn meetlet-btn-with-icon meetlet-access-reset-btn',
                    'data-meetlet-reset-section' => $section,
                ]
            ),
            'meetlet-access-reset-toolbar'
        );
    }

    /**
     * Modal + config root (render once on the access settings tab).
     */
    public static function page_assets(): string {
        if (self::$assetsrendered) {
            return '';
        }
        self::$assetsrendered = true;

        $strings = self::client_strings();
        $html = \html_writer::div('', '', [
            'id' => 'meetlet-access-reset-root',
            'hidden' => 'hidden',
            'data-strings' => json_encode($strings, JSON_UNESCAPED_UNICODE),
        ]);
        $html .= self::modal_html();
        return $html;
    }

    /**
     * @return array<string,string>
     */
    public static function client_strings(): array {
        return [
            'modal_cancel' => get_string('accessreset_modal_cancel', 'meetletacbfree'),
            'modal_close' => get_string('accessreset_modal_close', 'meetletacbfree'),
            'modal_ok' => get_string('accessreset_modal_ok', 'meetletacbfree'),
            'confirm_reset' => get_string('accessreset_confirm_reset', 'meetletacbfree'),
            'confirm_rolemapping_title' => get_string('reset_rolemapping_confirm_title', 'meetletacbfree'),
            'confirm_rolemapping' => get_string('reset_rolemapping_confirm', 'meetletacbfree'),
            'confirm_featureaccess_title' => get_string('reset_featureaccess_confirm_title', 'meetletacbfree'),
            'confirm_featureaccess' => get_string('reset_featureaccess_confirm', 'meetletacbfree'),
            'success_rolemapping' => get_string('reset_success_rolemapping', 'meetletacbfree'),
            'success_featureaccess' => get_string('reset_success_featureaccess', 'meetletacbfree'),
            'error' => get_string('reset_error', 'meetletacbfree'),
            'busy' => get_string('accessreset_busy', 'meetletacbfree'),
        ];
    }

    protected static function modal_html(): string {
        return \html_writer::div(
            \html_writer::div('', 'meetlet-modal__backdrop', ['data-meetlet-modal-dismiss' => '1']) .
            \html_writer::div(
                \html_writer::div(
                    \html_writer::tag('h3', '', [
                        'class' => 'meetlet-modal__title',
                        'id' => 'meetlet-access-reset-modal-title',
                    ]) .
                    \html_writer::tag('button', '×', [
                        'type' => 'button',
                        'class' => 'meetlet-modal__close',
                        'data-meetlet-modal-dismiss' => '1',
                        'aria-label' => get_string('accessreset_modal_close', 'meetletacbfree'),
                    ]),
                    'meetlet-modal__head'
                ) .
                \html_writer::div('', 'meetlet-modal__body', [
                    'id' => 'meetlet-access-reset-modal-body',
                ]) .
                \html_writer::div(
                    \html_writer::tag('button', get_string('accessreset_modal_cancel', 'meetletacbfree'), [
                        'type' => 'button',
                        'class' => 'btn btn-outline-secondary',
                        'data-meetlet-modal-dismiss' => '1',
                    ]) .
                    \html_writer::tag('button', get_string('accessreset_confirm_reset', 'meetletacbfree'), [
                        'type' => 'button',
                        'class' => 'btn btn-outline-danger',
                        'id' => 'meetlet-access-reset-modal-confirm',
                    ]),
                    'meetlet-modal__foot'
                ),
                'meetlet-modal__dialog',
                [
                    'role' => 'dialog',
                    'aria-modal' => 'true',
                    'aria-labelledby' => 'meetlet-access-reset-modal-title',
                ]
            ),
            'meetlet-modal meetlet-modal--confirm',
            [
                'id' => 'meetlet-access-reset-modal',
                'hidden' => 'hidden',
            ]
        );
    }
}