private static function finish_installation() {
		$state = self::get_state();
		if ( empty( $state['steps'] ) ) {
			return;
		}

		foreach ( $state['steps'] as $step ) {
			if ( ! empty( $step['last_error'] ) ) {
				$state['status'] = 'has_error';
				break;
			}
		}

		if ( 'has_error' !== $state['status'] ) {
			$state['status'] = 'finished';
		}

		WC_Helper_Options::update( 'product_install', $state );
	}