gistfile1.txt

class pisol_custom_code_20251209{
	public static $instance = null;

	public $saturday_next_day_cutoff_time = '12:30';

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

	private function __construct() {
		add_filter('pisol_dtt_setting_filter_pi_next_day_delivery_cutoff_time', [$this, 'saturday_next_day_cutoff_time']);
		add_filter('pisol_dtt_setting_filter_pi_order_preparation_days', [$this, 'saturday_preparation_days']);
		add_filter('pisol_dtt_setting_filter_pi_order_preparation_days_delivery', [$this, 'saturday_preparation_days']);
	}

	function saturday_next_day_cutoff_time($time) {
		// current_time('w') returns 0 (Sunday) through 6 (Saturday) in WP
		if ( (int) current_time( 'w' ) === 6 ) {
			return $this->saturday_next_day_cutoff_time;
		}

		return $time;
	}

	function saturday_preparation_days($days) {
		// current_time('w') returns 0 (Sunday) through 6 (Saturday) in WP
		$current_time_timestamp = current_time( 'timestamp' );
		$cutoff_time = strtotime( date( 'Y-m-d', $current_time_timestamp ) . ' ' . $this->saturday_next_day_cutoff_time );
		if ( (int) current_time( 'w' ) === 6 && $current_time_timestamp >= $cutoff_time ) {
			return 3; // Only Monday
		}

		return $days;
	}
}

pisol_custom_code_20251209::get_instance();