adocWP/kb-antora-importer/includes/Admin/SettingsPage.php

<?php
declare(strict_types=1);

namespace KbAntoraImporter\Admin;

use KbAntoraImporter\GitLab\GitLabClient;
use KbAntoraImporter\Import\ImportLogger;
use KbAntoraImporter\Plugin;
use KbAntoraImporter\Settings;

final class SettingsPage
{
    public static function registerSettings(): void
    {
        register_setting('kb_antora_importer_settings', 'kb_antora_importer_settings', [
            'type' => 'array',
            'sanitize_callback' => [self::class, 'sanitize'],
            'default' => Settings::defaults(),
        ]);
    }

    public static function sanitize(array $input): array
    {
        $old = Plugin::settings();
        $settings = Settings::defaults();

        $settings['gitlab_base_url'] = esc_url_raw(GitLabClient::normalizeBaseUrl((string) ($input['gitlab_base_url'] ?? '')));
        $settings['gitlab_token'] = trim((string) ($input['gitlab_token'] ?? '')) ?: (string) $old['gitlab_token'];
        $settings['gitlab_group'] = sanitize_text_field((string) ($input['gitlab_group'] ?? 'knowledgebase'));
        $settings['branch_pattern'] = sanitize_text_field((string) ($input['branch_pattern'] ?? '^v.*'));
        $settings['docs_base_slug'] = sanitize_title((string) ($input['docs_base_slug'] ?? 'docs')) ?: 'docs';
        $settings['renderer_mode'] = in_array(($input['renderer_mode'] ?? 'php'), ['php', 'asciidoctor'], true) ? (string) $input['renderer_mode'] : 'php';
        $settings['asciidoctor_path'] = sanitize_text_field((string) ($input['asciidoctor_path'] ?? 'asciidoctor'));
        $settings['image_lightbox'] = ! empty($input['image_lightbox']) ? '1' : '0';
        $settings['public_docs'] = ! empty($input['public_docs']) ? '1' : '0';
        $settings['allow_svg'] = ! empty($input['allow_svg']) ? '1' : '0';
        $settings['cron_interval'] = in_array(($input['cron_interval'] ?? 'disabled'), ['disabled', 'hourly', 'daily', 'weekly'], true) ? (string) $input['cron_interval'] : 'disabled';

        Plugin::syncCronSchedule($settings);
        if (($old['docs_base_slug'] ?? 'docs') !== $settings['docs_base_slug']) {
            flush_rewrite_rules(false);
        }

        return $settings;
    }

    public static function render(): void
    {
        if (! current_user_can('manage_kb_docs')) {
            wp_die(esc_html__('Insufficient permissions.', 'kb-antora-importer'));
        }

        if (isset($_POST['kb_antora_test_connection']) && check_admin_referer('kb_antora_test_connection')) {
            self::handleConnectionTest();
        }

        $settings = Plugin::settings();
        ?>
        <div class="wrap">
            <h1><?php esc_html_e('Knowledgebase Settings', 'kb-antora-importer'); ?></h1>
            <form method="post" action="options.php">
                <?php settings_fields('kb_antora_importer_settings'); ?>
                <table class="form-table" role="presentation">
                    <tr>
                        <th scope="row"><label for="gitlab_base_url">GitLab Base URL</label></th>
                        <td>
                            <input class="regular-text" id="gitlab_base_url" name="kb_antora_importer_settings[gitlab_base_url]" type="url" value="<?php echo esc_attr($settings['gitlab_base_url']); ?>" placeholder="https://git.example.de">
                            <p class="description"><?php esc_html_e('Use the GitLab root URL, for example https://git.example.de. Do not include /api/v4.', 'kb-antora-importer'); ?></p>
                        </td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="gitlab_token">GitLab API Token</label></th>
                        <td><input class="regular-text" id="gitlab_token" name="kb_antora_importer_settings[gitlab_token]" type="password" value="" placeholder="<?php echo $settings['gitlab_token'] ? esc_attr__('Token is stored; leave blank to keep it', 'kb-antora-importer') : ''; ?>"></td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="gitlab_group">GitLab Group Path / ID</label></th>
                        <td><input class="regular-text" id="gitlab_group" name="kb_antora_importer_settings[gitlab_group]" type="text" value="<?php echo esc_attr($settings['gitlab_group']); ?>"></td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="branch_pattern">Branch Pattern</label></th>
                        <td><input class="regular-text" id="branch_pattern" name="kb_antora_importer_settings[branch_pattern]" type="text" value="<?php echo esc_attr($settings['branch_pattern']); ?>"></td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="docs_base_slug">Frontend Base Slug</label></th>
                        <td><input class="regular-text" id="docs_base_slug" name="kb_antora_importer_settings[docs_base_slug]" type="text" value="<?php echo esc_attr($settings['docs_base_slug']); ?>"></td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="renderer_mode">Renderer Mode</label></th>
                        <td>
                            <select id="renderer_mode" name="kb_antora_importer_settings[renderer_mode]">
                                <option value="php" <?php selected($settings['renderer_mode'], 'php'); ?>>PHP Renderer</option>
                                <option value="asciidoctor" <?php selected($settings['renderer_mode'], 'asciidoctor'); ?>>Asciidoctor CLI</option>
                            </select>
                        </td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="asciidoctor_path">Asciidoctor Path</label></th>
                        <td><input class="regular-text" id="asciidoctor_path" name="kb_antora_importer_settings[asciidoctor_path]" type="text" value="<?php echo esc_attr($settings['asciidoctor_path']); ?>"></td>
                    </tr>
                    <tr>
                        <th scope="row">Options</th>
                        <td>
                            <label><input type="checkbox" name="kb_antora_importer_settings[image_lightbox]" value="1" <?php checked($settings['image_lightbox'], '1'); ?>> Link images with lightbox class</label><br>
                            <label><input type="checkbox" name="kb_antora_importer_settings[public_docs]" value="1" <?php checked($settings['public_docs'], '1'); ?>> Show documentation publicly</label><br>
                            <label><input type="checkbox" name="kb_antora_importer_settings[allow_svg]" value="1" <?php checked($settings['allow_svg'], '1'); ?>> Allow SVG image import</label>
                        </td>
                    </tr>
                    <tr>
                        <th scope="row"><label for="cron_interval">Automatic Sync</label></th>
                        <td>
                            <select id="cron_interval" name="kb_antora_importer_settings[cron_interval]">
                                <option value="disabled" <?php selected($settings['cron_interval'], 'disabled'); ?>>Disabled</option>
                                <option value="hourly" <?php selected($settings['cron_interval'], 'hourly'); ?>>Hourly</option>
                                <option value="daily" <?php selected($settings['cron_interval'], 'daily'); ?>>Daily</option>
                                <option value="weekly" <?php selected($settings['cron_interval'], 'weekly'); ?>>Weekly</option>
                            </select>
                        </td>
                    </tr>
                </table>
                <?php submit_button(); ?>
            </form>
            <form method="post">
                <?php wp_nonce_field('kb_antora_test_connection'); ?>
                <?php submit_button(__('Test GitLab Connection', 'kb-antora-importer'), 'secondary', 'kb_antora_test_connection'); ?>
            </form>
        </div>
        <?php
    }

    private static function handleConnectionTest(): void
    {
        $client = new GitLabClient(Plugin::settings());
        $result = $client->getGroup(Plugin::settings()['gitlab_group']);

        if (is_wp_error($result)) {
            $message = self::formatConnectionError($result);
            ImportLogger::error('GitLab connection failed: ' . $message);
            add_settings_error('kb_antora_importer', 'connection_failed', esc_html($message), 'error');
            settings_errors('kb_antora_importer');
            return;
        }

        ImportLogger::info('GitLab connection successful.');
        add_settings_error('kb_antora_importer', 'connection_ok', esc_html__('GitLab connection successful.', 'kb-antora-importer'), 'success');
        settings_errors('kb_antora_importer');
    }

    private static function formatConnectionError(\WP_Error $error): string
    {
        $message = $error->get_error_message();
        $data = $error->get_error_data();

        if (! is_array($data)) {
            return $message;
        }

        if (! empty($data['url'])) {
            $message .= ' Target: ' . $data['url'];
        }

        if (! empty($data['retry_after'])) {
            $message .= ' Retry-After: ' . $data['retry_after'];
        }

        if (! empty($data['response_excerpt'])) {
            $message .= ' Response: ' . $data['response_excerpt'];
        }

        return $message;
    }
}