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 };
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