Siegel-Umzugsliste/umzugsliste.php

<?php
/**
 * Plugin Name: Umzugsliste
 * Description: Email-basiertes Möbelauswahlsystem für Siegel Umzüge
 * Version: 1.0.0
 * Author: Siegel Umzüge
 * Text Domain: umzugsliste
 * Domain Path: /languages
 */

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

// Plugin version
define( 'UMZUGSLISTE_VERSION', '1.0.0' );
define( 'UMZUGSLISTE_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
define( 'UMZUGSLISTE_PLUGIN_URL', plugin_dir_url( __FILE__ ) );

/**
 * Main plugin class
 */
class Umzugsliste {

	/**
	 * Single instance of the class
	 */
	private static $instance = null;

	/**
	 * Get single instance
	 */
	public static function get_instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Constructor
	 */
	private function __construct() {
		$this->load_dependencies();
		$this->init_hooks();
	}

	/**
	 * Load required files
	 */
	private function load_dependencies() {
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-cpt.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-admin-menu.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-settings.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-furniture-data.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-date-helpers.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-captcha.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-form-renderer.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-shortcode.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-email-generator.php';
		require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-form-handler.php';
	}

	/**
	 * Initialize WordPress hooks
	 */
	private function init_hooks() {
		add_action( 'init', array( $this, 'init' ) );
	}

	/**
	 * Initialize plugin components
	 */
	public function init() {
		// Initialize and register CPT
		$cpt = Umzugsliste_CPT::get_instance();
		$cpt->register_post_type();

		// Initialize admin menu
		if ( is_admin() ) {
			Umzugsliste_Admin_Menu::get_instance();
		}

		// Initialize settings
		Umzugsliste_Settings::get_instance();

		// Initialize shortcode
		Umzugsliste_Shortcode::get_instance();

		// Initialize form handler
		Umzugsliste_Form_Handler::get_instance();
	}
}

/**
 * Activation hook
 */
function umzugsliste_activate() {
	// Initialize CPT to register post type
	require_once UMZUGSLISTE_PLUGIN_DIR . 'includes/class-cpt.php';
	Umzugsliste_CPT::get_instance();

	// Flush rewrite rules
	flush_rewrite_rules();
}
register_activation_hook( __FILE__, 'umzugsliste_activate' );

/**
 * Deactivation hook
 */
function umzugsliste_deactivate() {
	// Flush rewrite rules
	flush_rewrite_rules();
}
register_deactivation_hook( __FILE__, 'umzugsliste_deactivate' );

/**
 * Initialize plugin
 */
function umzugsliste_init() {
	return Umzugsliste::get_instance();
}
add_action( 'plugins_loaded', 'umzugsliste_init' );