qdr.app.woo.plugins/studiou-wc-ord-print-statuses/includes/class-order-status-manager.php

<?php
// Handles custom order status registration and integration.
class Order_Status_Manager {
    private $custom_statuses;

    public function __construct() {
        $this->custom_statuses = array(
            'wc-to-print' => array(
                'label' => _x('Prepare to Printing', 'Order status', 'studiou-wc-ord-print-statuses'),
                'label_count' => _n_noop('Prepare to Printing <span class="count">(%s)</span>', 'Prepare to Printing <span class="count">(%s)</span>', 'studiou-wc-ord-print-statuses')
            ),
            'wc-in-print' => array(
                'label' => _x('In Printing', 'Order status', 'studiou-wc-ord-print-statuses'),
                'label_count' => _n_noop('In Printing <span class="count">(%s)</span>', 'In Printing <span class="count">(%s)</span>', 'studiou-wc-ord-print-statuses')
            )
        );

        add_action('init', array($this, 'register_custom_order_statuses'));
        add_filter('wc_order_statuses', array($this, 'add_custom_order_statuses_to_list'));
        add_action('woocommerce_order_status_changed', array($this, 'handle_status_transitions'), 10, 3);
    }

    public function register_custom_order_statuses() {
        foreach ($this->custom_statuses as $status_slug => $status_args) {
            register_post_status($status_slug, array(
                'label' => $status_args['label'],
                'public' => true,
                'exclude_from_search' => false,
                'show_in_admin_all_list' => true,
                'show_in_admin_status_list' => true,
                'label_count' => $status_args['label_count']
            ));
        }
    }

    public function add_custom_order_statuses_to_list($order_statuses) {
        $new_order_statuses = array();

        foreach ($order_statuses as $key => $status) {
            $new_order_statuses[$key] = $status;

            if ($key === 'wc-processing') {
                foreach ($this->custom_statuses as $status_slug => $status_args) {
                    $new_order_statuses[$status_slug] = $status_args['label'];
                }
            }
        }

        return $new_order_statuses;
    }

    public function handle_status_transitions($order_id, $old_status, $new_status) {
        // Handle status transitions here
        // For example:
        if ($new_status === 'to-print') {
            update_post_meta($order_id, 'to-print-date', current_time('mysql'));
        } elseif ($new_status === 'in-print') {
            update_post_meta($order_id, 'in-print-date', current_time('mysql'));
        }
    }

    public function get_custom_statuses() {
        return $this->custom_statuses;
    }
}