<?php
namespace Automattic\WooCommerce\StoreApi\Exceptions;

/**
 * RouteException class.
 */
class RouteException extends \Exception {
	/**
	 * Sanitized error code.
	 *
	 * @var string
	 */
	public $error_code;

	/**
	 * Additional error data.
	 *
	 * @var array
	 */
	public $additional_data = [];

	/**
	 * Setup exception.
	 *
	 * @param string $error_code       Machine-readable error code, e.g `woocommerce_invalid_product_id`.
	 * @param string $message          User-friendly translated error message, e.g. 'Product ID is invalid'.
	 * @param int    $http_status_code Proper HTTP status code to respond with, e.g. 400.
	 * @param array  $additional_data  Extra data (key value pairs) to expose in the error response.
	 */
	public function __construct( $error_code, $message, $http_status_code = 400, $additional_data = [] ) {
		$this->error_code = $error_code;

		// Only drop values the client cannot act on. `0` and `false` are meaningful here (e.g. a confirmed total of zero).
		$this->additional_data = array_filter(
			(array) $additional_data,
			static function ( $value ) {
				return null !== $value && '' !== $value && [] !== $value;
			}
		);

		parent::__construct( $message, $http_status_code );
	}

	/**
	 * Returns the error code.
	 *
	 * @return string
	 */
	public function getErrorCode() {
		return $this->error_code;
	}

	/**
	 * Returns additional error data.
	 *
	 * @return array
	 */
	public function getAdditionalData() {
		return $this->additional_data;
	}
}