/**
 * Copyright (c) 2021 OpenLens Authors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import type Url from "url-parse";

export enum RoutingErrorType {
  INVALID_PROTOCOL = "invalid-protocol",
  INVALID_HOST = "invalid-host",
  INVALID_PATHNAME = "invalid-pathname",
  NO_HANDLER = "no-handler",
  NO_EXTENSION_ID = "no-ext-id",
  MISSING_EXTENSION = "missing-ext",
}

export class RoutingError extends Error {
  /**
   * Will be set if the routing error originated in an extension route table
   */
  public extensionName?: string;

  constructor(public type: RoutingErrorType, public url: Url) {
    super("routing error");
  }

  toString(): string {
    switch (this.type) {
      case RoutingErrorType.INVALID_HOST:
        return "invalid host";
      case RoutingErrorType.INVALID_PROTOCOL:
        return "invalid protocol";
      case RoutingErrorType.INVALID_PATHNAME:
        return "invalid pathname";
      case RoutingErrorType.NO_EXTENSION_ID:
        return "no extension ID";
      case RoutingErrorType.MISSING_EXTENSION:
        return "extension not found";
      default:
        return `unknown error: ${this.type}`;
    }
  }
}