import { Deprecation } from 'deprecation';
import once from 'once';

const logOnce = once(deprecation => console.warn(deprecation));
/**
 * Error with extra properties to help with debugging
 */

class RequestError extends Error {
  constructor(message, statusCode, options) {
    super(message); // Maintains proper stack trace (only available on V8)

    /* istanbul ignore next */

    if (Error.captureStackTrace) {
      Error.captureStackTrace(this, this.constructor);
    }

    this.name = "HttpError";
    this.status = statusCode;
    Object.defineProperty(this, "code", {
      get() {
        logOnce(new Deprecation("[@octokit/request-error] `error.code` is deprecated, use `error.status`."));
        return statusCode;
      }

    });
    this.headers = options.headers; // redact request credentials without mutating original request options

    const requestCopy = Object.assign({}, options.request);

    if (options.request.headers.authorization) {
      requestCopy.headers = Object.assign({}, options.request.headers, {
        authorization: options.request.headers.authorization.replace(/ .*$/, " [REDACTED]")
      });
    }

    requestCopy.url = requestCopy.url // client_id & client_secret can be passed as URL query parameters to increase rate limit
    // see https://developer.github.com/v3/#increasing-the-unauthenticated-rate-limit-for-oauth-applications
    .replace(/\bclient_secret=\w+/g, "client_secret=[REDACTED]") // OAuth tokens can be passed as URL query parameters, although it is not recommended
    // see https://developer.github.com/v3/#oauth2-token-sent-in-a-header
    .replace(/\baccess_token=\w+/g, "access_token=[REDACTED]");
    this.request = requestCopy;
  }

}

export { RequestError };