移除和禁用 WooCommerce 邮件

if ( ! function_exists( 'YOUR_PREFIX_unhook_woocommerce_emails' ) ) {
    /**
     * 回调函数，用于 woocommerce_email 动作钩子
     *
     * @param WC_Email $email_class 一个邮件类实例。
     * @return void
     */
    function YOUR_PREFIX_unhook_woocommerce_emails( $email_class ) {
        /**
         * 在商店事件期间发送邮件的钩子。
         */
        remove_action( 'woocommerce_low_stock_notification', array( $email_class, 'low_stock' ) );
        remove_action( 'woocommerce_no_stock_notification', array( $email_class, 'no_stock' ) );
        remove_action( 'woocommerce_product_on_backorder_notification', array( $email_class, 'backorder' ) );

        // 新增 订单 邮件。
        remove_action( 'woocommerce_order_status_pending_to_processing_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
        remove_action( 'woocommerce_order_status_pending_to_completed_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
        remove_action( 'woocommerce_order_status_pending_to_on-hold_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
        remove_action( 'woocommerce_order_status_failed_to_processing_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
        remove_action( 'woocommerce_order_status_failed_to_completed_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
        remove_action( 'woocommerce_order_status_failed_to_on-hold_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );

        // 处理中 订单 邮件。
        remove_action( 'woocommerce_order_status_pending_to_processing_notification', array( $email_class->emails['WC_Email_Customer_Processing_Order'], 'trigger' ) );
        remove_action( 'woocommerce_order_status_pending_to_on-hold_notification', array( $email_class->emails['WC_Email_Customer_On_Hold_Order'], 'trigger' ) );

        // 已完成 订单 邮件。
        remove_action( 'woocommerce_order_status_completed_notification', array( $email_class->emails['WC_Email_Customer_Completed_Order'], 'trigger' ) );

        // 备注 邮件。
        remove_action( 'woocommerce_new_customer_note_notification', array( $email_class->emails['WC_Email_Customer_Note'], 'trigger' ) );
    }
}
add_action( 'woocommerce_email', 'YOUR_PREFIX_unhook_woocommerce_emails' );