<?php
// This file is part of Moodle - http://moodle.org/

/**
 * Admin UI for voluntary MeetLet site registration (Marketplace free edition).
 *
 * @package    mod_meetletacbfree
 * @copyright  2026 MeetLet
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace mod_meetletacbfree\admin;

use admin_setting;
use mod_meetletacbfree\local\icons;
use mod_meetletacbfree\registration\manager;

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

/**
 * Transparent online activation panel — no license key in this edition.
 */
class setting_registration extends admin_setting {
    public function __construct() {
        parent::__construct(
            'meetletacbfree/registration_panel',
            '',
            '',
            ''
        );
        $this->nosave = true;
    }

    public function get_setting() {
        return true;
    }

    public function write_setting($data) {
        return '';
    }

    public function output_html($data, $query = '') {
        global $OUTPUT, $PAGE;

        $summary = manager::status_summary();
        $active = !empty($summary['active']);
        $candeactivate = !empty($summary['can_deactivate']);
        $ajaxurl = new \moodle_url('/mod/meetletacbfree/ajax/registration.php');
        $scrolljsurl = new \moodle_url('/mod/meetletacbfree/javascript/meetlet_modal_scroll.js', [
            'v' => '2026090146',
        ]);
        $jsurl = new \moodle_url('/mod/meetletacbfree/javascript/settings_registration.js', [
            'v' => '2026090146',
        ]);
        $privacytaburl = manager::privacy_tab_url();
        $PAGE->requires->js($scrolljsurl);
        $PAGE->requires->js($jsurl);

        $statusbadge = \html_writer::span(
            s($summary['status_label'] ?? ($active
                ? get_string('registration_status_active', 'meetletacbfree')
                : get_string('registration_status_inactive', 'meetletacbfree'))),
            'badge meetlet-license-badge ' . ($active ? 'meetlet-license-badge--active' : 'meetlet-license-badge--inactive'),
            ['id' => 'meetlet-registration-status-badge']
        );

        $datalist = \html_writer::tag('ul',
            \html_writer::tag('li', get_string('registration_data_item_domain', 'meetletacbfree', s($summary['domain']))) .
            \html_writer::tag('li', get_string('registration_data_item_moodle', 'meetletacbfree', s($summary['moodle_release']))) .
            \html_writer::tag('li', get_string('registration_data_item_plugin', 'meetletacbfree', s($summary['plugin_release']))) .
            \html_writer::tag('li', get_string('registration_data_item_installation', 'meetletacbfree', s($summary['installation_id']))) .
            \html_writer::tag('li', get_string('registration_data_item_sitename', 'meetletacbfree', s($summary['site_company']))) .
            \html_writer::tag('li', get_string('registration_data_item_email', 'meetletacbfree',
                $summary['site_admin_email'] !== '' ? s($summary['site_admin_email']) : get_string('registration_data_optional', 'meetletacbfree'))),
            ['class' => 'meetlet-registration-data']
        );

        $why = \html_writer::div(
            \html_writer::tag('h4', get_string('registration_why_title', 'meetletacbfree')) .
            \html_writer::tag('p', get_string('registration_why', 'meetletacbfree')),
            'meetlet-guide__section'
        );
        $what = \html_writer::div(
            \html_writer::tag('h4', get_string('registration_data_title', 'meetletacbfree')) .
            \html_writer::tag('p', get_string('registration_data_sent', 'meetletacbfree')) .
            $datalist .
            \html_writer::tag('p',
                get_string(
                    'registration_privacy',
                    'meetletacbfree',
                    \html_writer::link($privacytaburl, get_string('registration_privacy_tablink', 'meetletacbfree'))
                ),
                ['class' => 'mb-0']
            ),
            'meetlet-guide__section'
        );

        $inactiveactions = [
            'id' => 'meetlet-registration-actions-inactive',
            'class' => 'meetlet-license-actions mt-3' . ($active ? ' d-none' : ''),
        ];
        $activeactions = [
            'id' => 'meetlet-registration-actions-active',
            'class' => 'meetlet-license-actions mt-3' . ($active ? '' : ' d-none'),
        ];

        $html = \html_writer::div(
            $why .
            $what .
            \html_writer::div(
                \html_writer::tag('p', get_string('registration_status_label', 'meetletacbfree') . ' ' .
                    \html_writer::span($statusbadge, '', ['id' => 'meetlet-registration-status-badge'])) .
                \html_writer::tag('p', get_string('registration_domain', 'meetletacbfree', s($summary['domain'])), [
                    'id' => 'meetlet-registration-domain',
                ]) .
                \html_writer::tag('p', get_string('registration_installation', 'meetletacbfree', s($summary['installation_id'])), [
                    'id' => 'meetlet-registration-installation',
                ]) .
                \html_writer::tag('p', s($summary['product_label'] ?? ''), [
                    'id' => 'meetlet-registration-product',
                    'class' => $active ? '' : 'd-none',
                ]) .
                \html_writer::div(
                    $summary['error'] ? s($summary['error']) : '',
                    'alert alert-danger mt-2' . (!empty($summary['error']) ? '' : ' d-none'),
                    ['id' => 'meetlet-registration-error']
                ),
                'meetlet-license-status mb-2'
            ) .
            \html_writer::div(
                \html_writer::tag('button',
                    '<svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">'
                    . '<path fill="currentColor" d="M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z"/></svg>'
                    . \html_writer::span(get_string('registration_activate', 'meetletacbfree'), 'meetlet-btn-with-icon__label'),
                    [
                        'type' => 'button',
                        'class' => 'meetlet-settings-btn meetlet-btn-with-icon meetlet-license-btn--free',
                        'id' => 'meetlet-registration-activate',
                        'title' => get_string('registration_activate_help', 'meetletacbfree'),
                    ]
                ),
                '',
                $inactiveactions
            ) .
            \html_writer::div(
                \html_writer::tag('button',
                    icons::svg('refresh')
                    . \html_writer::span(get_string('registration_recheck', 'meetletacbfree'), 'meetlet-btn-with-icon__label'),
                    [
                        'type' => 'button',
                        'class' => 'btn btn-secondary meetlet-btn-with-icon',
                        'id' => 'meetlet-registration-recheck',
                    ]
                ) .
                ($candeactivate ? ' ' .
                \html_writer::tag('button',
                    '<svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">'
                    . '<path fill="currentColor" d="M12 2a10 10 0 1 0 10 10h-2a8 8 0 1 1-8-8V2zm1 5v5.6l3.2 1.9-.8 1.4L11 13.2V7h2z"/></svg>'
                    . \html_writer::span(get_string('registration_deactivate', 'meetletacbfree'), 'meetlet-btn-with-icon__label'),
                    [
                        'type' => 'button',
                        'class' => 'btn btn-outline-danger meetlet-btn-with-icon',
                        'id' => 'meetlet-registration-deactivate',
                    ]
                ) : ''),
                '',
                $activeactions
            ) .
            \html_writer::div('', 'mt-3 d-none', ['id' => 'meetlet-registration-flash']) .
            \html_writer::div('', '', [
                'id' => 'meetlet-registration-config',
                'data-ajaxurl' => $ajaxurl->out(false),
                'data-sesskey' => sesskey(),
                'data-api-input' => 'id_s_meetletacbfree_registration_api_url',
                'data-label-active' => get_string('registration_status_active', 'meetletacbfree'),
                'data-label-inactive' => get_string('registration_status_inactive', 'meetletacbfree'),
                'data-label-domain' => get_string('registration_domain', 'meetletacbfree', '__V__'),
                'data-label-installation' => get_string('registration_installation', 'meetletacbfree', '__V__'),
                'data-confirm-activate-title' => get_string('registration_activate_confirm_title', 'meetletacbfree'),
                'data-confirm-activate-ok' => get_string('registration_activate_confirm_ok', 'meetletacbfree'),
                'data-confirm-deactivate-title' => get_string('registration_deactivate_confirm_title', 'meetletacbfree'),
                'data-confirm-deactivate-ok' => get_string('registration_deactivate_confirm_ok', 'meetletacbfree'),
                'data-confirm-deactivate' => get_string('registration_deactivate_confirm', 'meetletacbfree'),
                'hidden' => 'hidden',
            ]) .
            self::confirm_modal_html(),
            'meetlet-registration-panel meetlet-settings-card'
        );

        return format_admin_setting($this, '', $html, '', true, '', null, $query);
    }

    protected static function confirm_modal_html(): string {
        $activatebody = \html_writer::tag('p', get_string('registration_activate_confirm_lead', 'meetletacbfree'), [
                'class' => 'meetlet-modal__lead',
            ]) .
            \html_writer::tag('p', get_string('registration_activate_confirm_data', 'meetletacbfree'), [
                'class' => 'meetlet-modal__keep',
            ]);
        $deactivatebody = \html_writer::tag('p', get_string('registration_deactivate_confirm_lead', 'meetletacbfree'), [
                'class' => 'meetlet-modal__lead',
            ]) .
            \html_writer::div(
                \html_writer::tag('p', get_string('registration_deactivate_confirm_warning', 'meetletacbfree'), [
                    'class' => 'meetlet-modal__callout-title',
                ]),
                'meetlet-modal__callout'
            );

        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-registration-modal-title',
                    ]) .
                    \html_writer::tag('button', '×', [
                        'type' => 'button',
                        'class' => 'meetlet-modal__close',
                        'data-meetlet-modal-dismiss' => '1',
                        'aria-label' => get_string('registration_modal_close', 'meetletacbfree'),
                    ]),
                    'meetlet-modal__head'
                ) .
                \html_writer::div('', 'meetlet-modal__body', ['id' => 'meetlet-registration-modal-body']) .
                \html_writer::tag('template', $activatebody, ['id' => 'meetlet-registration-tpl-activate']) .
                \html_writer::tag('template', $deactivatebody, ['id' => 'meetlet-registration-tpl-deactivate']) .
                \html_writer::div(
                    \html_writer::tag('button', get_string('cancel', 'moodle'), [
                        'type' => 'button',
                        'class' => 'btn btn-secondary',
                        'data-meetlet-modal-dismiss' => '1',
                    ]) .
                    \html_writer::tag('button', '', [
                        'type' => 'button',
                        'class' => 'btn btn-primary',
                        'id' => 'meetlet-registration-modal-confirm',
                    ]),
                    'meetlet-modal__foot'
                ),
                'meetlet-modal__dialog',
                [
                    'role' => 'dialog',
                    'aria-modal' => 'true',
                    'aria-labelledby' => 'meetlet-registration-modal-title',
                ]
            ),
            'meetlet-modal meetlet-modal--confirm',
            [
                'id' => 'meetlet-registration-modal',
                'hidden' => 'hidden',
            ]
        );
    }
}