Minecraft-Modern-Theme/Minecraft-Modern-Theme/inc/theme-updater.php

<?php
/**
 * Minecraft Modern Theme - Updater & Dashboard Status
 *
 * Diese Datei prüft auf neue Versionen via Gitea API und zeigt den Status im Dashboard an.
 * Aus Sicherheitsgründen ist das automatische Update deaktiviert, um Datenverlust zu vermeiden.
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

class Minecraft_Modern_Theme_Manager {

    // BUG-FIX: Hardcoded 'Minecraft-Modern-Theme' schlug auf Linux-Servern
    // (case-sensitive Dateisystem) fehl, wenn das Verzeichnis kleingeschrieben ist.
    // get_template() liefert immer den echten Verzeichnisnamen.
    private $theme_slug;
    private $repo         = 'M_Viper/Minecraft-Modern-Theme';
    private $transient_key = 'mm_theme_update_check';

    public function __construct() {
        $this->theme_slug = get_template();

        add_action( 'admin_notices',    [ $this, 'display_update_notice' ] );
        add_action( 'wp_dashboard_setup', [ $this, 'add_dashboard_widget' ] );
        add_action( 'admin_init',       [ $this, 'handle_refresh_request' ] );
    }

    /**
     * Holt die API-Daten von Gitea (mit Transient-Cache).
     */
    private function get_latest_release() {
        $update_data = get_transient( $this->transient_key );

        if ( false === $update_data ) {
            $api_url  = "https://git.viper.ipv64.net/api/v1/repos/{$this->repo}/releases/latest";
            $response = wp_remote_get( $api_url, [ 'timeout' => 10 ] );

            if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) !== 200 ) {
                set_transient( $this->transient_key, [ 'error' => true ], 2 * HOUR_IN_SECONDS );
                return [ 'error' => true ];
            }

            $data        = json_decode( wp_remote_retrieve_body( $response ) );
            $new_version = ltrim( $data->tag_name, 'vV' );

            $update_data = [
                'version' => $new_version,
                'url'     => "https://git.viper.ipv64.net/{$this->repo}/releases",
            ];

            set_transient( $this->transient_key, $update_data, 12 * HOUR_IN_SECONDS );
        }

        return $update_data;
    }

    /**
     * Zeigt die gelbe Info-Box oben im Admin-Bereich an, wenn ein Update verfügbar ist.
     */
    public function display_update_notice() {
        if ( ! current_user_can( 'update_themes' ) ) return;

        $latest = $this->get_latest_release();
        if ( isset( $latest['error'] ) ) return;

        $current_version = wp_get_theme( $this->theme_slug )->get( 'Version' );
        if ( ! $current_version ) return;

        if ( version_compare( $current_version, $latest['version'], '<' ) ) {
            ?>
            <div class="notice notice-warning is-dismissible">
                <p>
                    <span class="dashicons dashicons-update" style="color: #dba617; margin-right: 5px;"></span>
                    <strong>Minecraft Modern Update verfügbar:</strong>
                    Version <strong><?php echo esc_html( $latest['version'] ); ?></strong> ist bereit zum Download.
                    <a href="<?php echo esc_url( $latest['url'] ); ?>" target="_blank" style="margin-left: 10px; font-weight: bold;">
                        Zum Download &rarr;
                    </a>
                </p>
            </div>
            <?php
        }
    }

    /**
     * Fügt das Widget zum WordPress-Dashboard hinzu.
     */
    public function add_dashboard_widget() {
        wp_add_dashboard_widget(
            'mm_theme_status_widget',
            'Minecraft Modern Theme Status',
            [ $this, 'render_widget_content' ]
        );
    }

    /**
     * HTML-Inhalt des Dashboard-Widgets.
     */
    public function render_widget_content() {
        $current_version = wp_get_theme( $this->theme_slug )->get( 'Version' );
        $latest          = $this->get_latest_release();

        echo '<div class="mm-status-widget">';
        echo '<p><span class="dashicons dashicons-admin-appearance"></span> <strong>Installiert:</strong> ' . esc_html( $current_version ?: '–' ) . '</p>';

        if ( isset( $latest['version'] ) ) {
            echo '<p><span class="dashicons dashicons-cloud"></span> <strong>Aktuellste:</strong> ' . esc_html( $latest['version'] ) . '</p>';

            if ( $current_version && version_compare( $current_version, $latest['version'], '<' ) ) {
                echo '<div style="background: #fff8e5; border-left: 4px solid #ffb900; padding: 12px; margin: 15px 0;">';
                echo '<p style="margin: 0 0 10px; color: #856404;"><strong>Update verfügbar!</strong></p>';
                echo '<a href="' . esc_url( $latest['url'] ) . '" class="button button-primary" target="_blank">Download ZIP von Gitea</a>';
                echo '</div>';
            } else {
                echo '<p style="color: #46b450; font-weight: bold; margin-top: 15px;">';
                echo '<span class="dashicons dashicons-yes"></span> Theme ist aktuell.</p>';
            }
        } else {
            echo '<p style="color: #d63638;"><span class="dashicons dashicons-warning"></span> Prüfung fehlgeschlagen.</p>';
        }

        $refresh_url = wp_nonce_url( admin_url( 'index.php?mm_refresh_check=1' ), 'mm_refresh_action' );
        echo '<hr><p><small><a href="' . esc_url( $refresh_url ) . '">Update-Cache jetzt leeren</a></small></p>';
        echo '</div>';
    }

    /**
     * Verarbeitet den Klick auf "Update-Cache jetzt leeren".
     */
    public function handle_refresh_request() {
        if ( isset( $_GET['mm_refresh_check'] ) && check_admin_referer( 'mm_refresh_action' ) ) {
            delete_transient( $this->transient_key );
            wp_redirect( admin_url( 'index.php' ) );
            exit;
        }
    }
}

new Minecraft_Modern_Theme_Manager();