, 'pronamic_ideal' ),
			'type'        => 'text',
			'classes'     => array( 'regular-text', 'code' ),
			'tooltip'     => __( 'Shop ID as mentioned at <strong>My Profile</strong> in the Sisow dashboard.', 'pronamic_ideal' ),
			/* translators: %s: 0 */
			'description' => sprintf( __( 'Default: <code>%s</code>', 'pronamic_ideal' ), 0 ),
			'default'     => 0,
		);

		return $fields;
	}

	/**
	 * Get configuration.
	 *
	 * @param int $post_id Post ID.
	 * @return Config
	 */
	public function get_config( $post_id ) {
		$config = new Config();

		$config->merchant_id  = $this->get_meta( $post_id, 'sisow_merchant_id' );
		$config->merchant_key = $this->get_meta( $post_id, 'sisow_merchant_key' );
		$config->shop_id      = $this->get_meta( $post_id, 'sisow_shop_id' );
		$config->mode         = $this->get_meta( $post_id, 'mode' );

		return $config;
	}

	/**
	 * Get gateway.
	 *
	 * @param int $post_id Post ID.
	 * @return Gateway
	 */
	public function get_gateway( $post_id ) {
		return new Gateway( $this->get_config( $post_id ) );
	}
}