wc-tier-and-package-prices/wc-tier-and-package-prices.php

<?php

/**
 * Plugin Name: WooCommerce Tier and Package Prices
 * Plugin URI: https://src.bundespruefstelle.ch/wc-tier-package-prices
 * Description: Add tier pricing and package prices to WooCommerce products with configurable quantities at fixed prices
 * Version: 1.1.3
 * Author: Marco Graetsch
 * Author URI: https://src.bundespruefstelle.ch/magdev
 * Text Domain: wc-tier-package-prices
 * Domain Path: /languages
 * Requires at least: 6.0
 * Requires PHP: 7.4
 * WC requires at least: 8.0
 * WC tested up to: 10.0
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 */

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

// Define plugin constants
define('WC_TPP_VERSION', '1.1.3');
define('WC_TPP_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('WC_TPP_PLUGIN_URL', plugin_dir_url(__FILE__));
define('WC_TPP_PLUGIN_BASENAME', plugin_basename(__FILE__));

// Load Composer autoloader
require_once WC_TPP_PLUGIN_DIR . 'vendor/autoload.php';

/**
 * Check if WooCommerce is active
 */
if (!in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins')))) {
    add_action('admin_notices', 'wc_tpp_woocommerce_missing_notice');
    return;
}

function wc_tpp_woocommerce_missing_notice() {
    ?>
    <div class="notice notice-error">
        <p><?php _e('WooCommerce Tier and Package Prices requires WooCommerce to be installed and active.', 'wc-tier-package-prices'); ?></p>
    </div>
    <?php
}

/**
 * Main plugin class
 */
class WC_Tier_Package_Prices {

    private static $instance = null;

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

    private function __construct() {
        $this->init_hooks();
        $this->includes();
    }

    private function init_hooks() {
        add_action('plugins_loaded', array($this, 'load_textdomain'));
        add_action('before_woocommerce_init', array($this, 'declare_hpos_compatibility'));
        register_activation_hook(__FILE__, array($this, 'activate'));
        register_deactivation_hook(__FILE__, array($this, 'deactivate'));
    }

    private function includes() {
        require_once WC_TPP_PLUGIN_DIR . 'includes/class-wc-tpp-template-loader.php';
        require_once WC_TPP_PLUGIN_DIR . 'includes/class-wc-tpp-admin.php';
        require_once WC_TPP_PLUGIN_DIR . 'includes/class-wc-tpp-product-meta.php';
        require_once WC_TPP_PLUGIN_DIR . 'includes/class-wc-tpp-frontend.php';
        require_once WC_TPP_PLUGIN_DIR . 'includes/class-wc-tpp-cart.php';
    }

    public function declare_hpos_compatibility() {
        if (class_exists(\Automattic\WooCommerce\Utilities\FeaturesUtil::class)) {
            \Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility('custom_order_tables', __FILE__, true);
        }
    }

    public function load_textdomain() {
        load_plugin_textdomain('wc-tier-package-prices', false, dirname(WC_TPP_PLUGIN_BASENAME) . '/languages');
    }

    public function activate() {
        // Add default options
        add_option('wc_tpp_enable_tier_pricing', 'yes');
        add_option('wc_tpp_enable_package_pricing', 'yes');
        add_option('wc_tpp_display_table', 'yes');
        flush_rewrite_rules();
    }

    public function deactivate() {
        flush_rewrite_rules();
    }
}

// Initialize the plugin
function wc_tpp_init() {
    return WC_Tier_Package_Prices::get_instance();
}

add_action('plugins_loaded', 'wc_tpp_init', 11);