WP-Multi-Wiki/includes/class-wmw-metaboxes.php

<?php
if ( ! defined( 'ABSPATH' ) ) { exit; }

class WMW_Metaboxes {

    public static function init() {
        add_action( 'add_meta_boxes', [ __CLASS__, 'register' ] );
        add_action( 'save_post_wmw_article', [ __CLASS__, 'save_article' ], 10, 2 );
        add_action( 'save_post_wmw_wiki',    [ __CLASS__, 'save_wiki' ],    10, 2 );
    }

    public static function register() {
        add_meta_box(
            'wmw_article_settings',
            'Wiki-Einstellungen',
            [ __CLASS__, 'article_settings_html' ],
            'wmw_article',
            'side',
            'high'
        );
        add_meta_box(
            'wmw_wiki_settings',
            'Wiki-Einstellungen',
            [ __CLASS__, 'wiki_settings_html' ],
            'wmw_wiki',
            'normal',
            'high'
        );
    }

    // ── Artikel Meta-Box ────────────────────────────────────────────────────
    public static function article_settings_html( $post ) {
        wp_nonce_field( 'wmw_save_article', 'wmw_article_nonce' );

        $wiki_id    = get_post_meta( $post->ID, '_wmw_wiki_id', true );
        $order      = get_post_meta( $post->ID, '_wmw_order', true ) ?: 0;
        $hide_toc   = get_post_meta( $post->ID, '_wmw_hide_toc', true );

        // Alle Wikis laden
        $wikis = get_posts( [
            'post_type'   => 'wmw_wiki',
            'numberposts' => -1,
            'orderby'     => 'title',
            'order'       => 'ASC',
        ] );
        ?>
        <p>
            <label for="wmw_wiki_id"><strong>Zugehoeriges Wiki</strong></label><br>
            <select name="wmw_wiki_id" id="wmw_wiki_id" style="width:100%;">
                <option value="">-- Wiki waehlen --</option>
                <?php foreach ( $wikis as $wiki ) : ?>
                    <option value="<?php echo esc_attr( $wiki->ID ); ?>"
                        <?php selected( $wiki_id, $wiki->ID ); ?>>
                        <?php echo esc_html( $wiki->post_title ); ?>
                    </option>
                <?php endforeach; ?>
            </select>
        </p>
        <p>
            <label for="wmw_order"><strong>Reihenfolge</strong></label><br>
            <input type="number" name="wmw_order" id="wmw_order"
                   value="<?php echo esc_attr( $order ); ?>"
                   style="width:100%;" min="0" step="1">
            <em style="font-size:11px;">Niedrigere Zahl = weiter oben</em>
        </p>
        <p>
            <label>
                <input type="checkbox" name="wmw_hide_toc" value="1" <?php checked( $hide_toc, '1' ); ?>>
                Inhaltsverzeichnis ausblenden
            </label>
        </p>
        <?php
    }

    // ── Wiki Meta-Box ───────────────────────────────────────────────────────
    public static function wiki_settings_html( $post ) {
        wp_nonce_field( 'wmw_save_wiki', 'wmw_wiki_nonce' );

        $icon_url   = get_post_meta( $post->ID, '_wmw_icon_url', true );
        $icon_class = get_post_meta( $post->ID, '_wmw_icon_class', true ) ?: 'dashicons-book-alt';
        $color      = get_post_meta( $post->ID, '_wmw_color', true ) ?: '#0073aa';
        $version    = get_post_meta( $post->ID, '_wmw_version', true );
        ?>
        <table class="form-table" style="margin:0;">
            <tr>
                <th><label for="wmw_color">Farbe</label></th>
                <td>
                    <input type="color" name="wmw_color" id="wmw_color"
                           value="<?php echo esc_attr( $color ); ?>">
                </td>
            </tr>
            <tr>
                <th><label for="wmw_icon_class">Dashicon</label></th>
                <td>
                    <input type="text" name="wmw_icon_class" id="wmw_icon_class"
                           value="<?php echo esc_attr( $icon_class ); ?>"
                           placeholder="dashicons-book-alt" style="width:100%;">
                    <em style="font-size:11px;">
                        <a href="https://developer.wordpress.org/resource/dashicons/" target="_blank">Dashicons anzeigen</a>
                    </em>
                </td>
            </tr>
            <tr>
                <th><label for="wmw_version">Version</label></th>
                <td>
                    <input type="text" name="wmw_version" id="wmw_version"
                           value="<?php echo esc_attr( $version ); ?>"
                           placeholder="z.B. 2.3.1" style="width:100%;">
                </td>
            </tr>
            <tr>
                <th><label for="wmw_icon_url">Icon URL</label></th>
                <td>
                    <input type="url" name="wmw_icon_url" id="wmw_icon_url"
                           value="<?php echo esc_attr( $icon_url ); ?>"
                           placeholder="https://..." style="width:100%;">
                    <em style="font-size:11px;">Optionales eigenes Icon (ueberschreibt Dashicon)</em>
                </td>
            </tr>
        </table>
        <?php
    }

    // ── Speichern: Artikel ──────────────────────────────────────────────────
    public static function save_article( $post_id, $post ) {
        if ( ! isset( $_POST['wmw_article_nonce'] ) ) return;
        if ( ! wp_verify_nonce( $_POST['wmw_article_nonce'], 'wmw_save_article' ) ) return;
        if ( wp_is_post_autosave( $post_id ) || wp_is_post_revision( $post_id ) ) return;
        if ( ! current_user_can( 'manage_options' ) ) return;

        if ( isset( $_POST['wmw_wiki_id'] ) ) {
            $wiki_id = intval( $_POST['wmw_wiki_id'] );
            if ( $wiki_id > 0 ) {
                update_post_meta( $post_id, '_wmw_wiki_id', $wiki_id );
            } else {
                delete_post_meta( $post_id, '_wmw_wiki_id' );
            }
        }

        if ( isset( $_POST['wmw_order'] ) ) {
            update_post_meta( $post_id, '_wmw_order', intval( $_POST['wmw_order'] ) );
        }

        if ( isset( $_POST['wmw_hide_toc'] ) ) {
            update_post_meta( $post_id, '_wmw_hide_toc', '1' );
        } else {
            delete_post_meta( $post_id, '_wmw_hide_toc' );
        }
    }

    // ── Speichern: Wiki ─────────────────────────────────────────────────────
    public static function save_wiki( $post_id, $post ) {
        if ( ! isset( $_POST['wmw_wiki_nonce'] ) ) return;
        if ( ! wp_verify_nonce( $_POST['wmw_wiki_nonce'], 'wmw_save_wiki' ) ) return;
        if ( wp_is_post_autosave( $post_id ) || wp_is_post_revision( $post_id ) ) return;
        if ( ! current_user_can( 'manage_options' ) ) return;

        $fields = [ 'wmw_icon_url', 'wmw_icon_class', 'wmw_color', 'wmw_version' ];
        foreach ( $fields as $field ) {
            if ( isset( $_POST[ $field ] ) ) {
                update_post_meta( $post_id, "_$field", sanitize_text_field( $_POST[ $field ] ) );
            }
        }
    }
}