text: 'use strict';
  
  Object.defineProperty(exports, '__esModule', { value: true });
  
  const VERSION = "2.8.0";
  
  /**
   * Some “list” response that can be paginated have a different response structure
   *
   * They have a `total_count` key in the response (search also has `incomplete_results`,
   * /installation/repositories also has `repository_selection`), as well as a key with
   * the list of the items which name varies from endpoint to endpoint.
   *
   * Octokit normalizes these responses so that paginated results are always returned following
   * the same structure. One challenge is that if the list response has only one page, no Link
   * header is provided, so this header alone is not sufficient to check wether a response is
   * paginated or not.
   *
   * We check if a "total_count" key is present in the response data, but also make sure that
   * a "url" property is not, as the "Get the combined status for a specific ref" endpoint would
   * otherwise match: https://developer.github.com/v3/repos/statuses/#get-the-combined-status-for-a-specific-ref
   */
  function normalizePaginatedListResponse(response) {
    const responseNeedsNormalization = "total_count" in response.data && !("url" in response.data);
    if (!responseNeedsNormalization) return response; // keep the additional properties intact as there is currently no other way
    // to retrieve the same information.
  
    const incompleteResults = response.data.incomplete_results;
    const repositorySelection = response.data.repository_selection;
    const totalCount = response.data.total_count;
    delete response.data.incomplete_results;
    delete response.data.repository_selection;
    delete response.data.total_count;
    const namespaceKey = Object.keys(response.data)[0];
    const data = response.data[namespaceKey];
    response.data = data;
  
    if (typeof incompleteResults !== "undefined") {
      response.data.incomplete_results = incompleteResults;
    }
  
    if (typeof repositorySelection !== "undefined") {
      response.data.repository_selection = repositorySelection;
    }
  
    response.data.total_count = totalCount;
    return response;
  }
  
  function iterator(octokit, route, parameters) {
    const options = typeof route === "function" ? route.endpoint(parameters) : octokit.request.endpoint(route, parameters);
    const requestMethod = typeof route === "function" ? route : octokit.request;
    const method = options.method;
    const headers = options.headers;
    let url = options.url;
    return {
      [Symbol.asyncIterator]: () => ({
        async next() {
          if (!url) return {
            done: true
          };
          const response = await requestMethod({
            method,
            url,
            headers
          });
          const normalizedResponse = normalizePaginatedListResponse(response); // `response.headers.link` format:
          // '<https://api.github.com/users/aseemk/followers?page=2>; rel="next", <https://api.github.com/users/aseemk/followers?page=2>; rel="last"'
          // sets `url` to undefined if "next" URL is not present or `link` header is not set
  
          url = ((normalizedResponse.headers.link || "").match(/<([^>]+)>;\s*rel="next"/) || [])[1];
          return {
            value: normalizedResponse
          };
        }
  
      })
    };
  }
  
  function paginate(octokit, route, parameters, mapFn) {
    if (typeof parameters === "function") {
      mapFn = parameters;
      parameters = undefined;
    }
  
    return gather(octokit, [], iterator(octokit, route, parameters)[Symbol.asyncIterator](), mapFn);
  }
  
  function gather(octokit, results, iterator, mapFn) {
    return iterator.next().then(result => {
      if (result.done) {
        return results;
      }
  
      let earlyExit = false;
  
      function done() {
        earlyExit = true;
      }
  
      results = results.concat(mapFn ? mapFn(result.value, done) : result.value.data);
  
      if (earlyExit) {
        return results;
      }
  
      return gather(octokit, results, iterator, mapFn);
    });
  }
  
  const composePaginateRest = Object.assign(paginate, {
    iterator
  });
  
  /**
   * @param octokit Octokit instance
   * @param options Options passed to Octokit constructor
   */
  
  function paginateRest(octokit) {
    return {
      paginate: Object.assign(paginate.bind(null, octokit), {
        iterator: iterator.bind(null, octokit)
      })
    };
  }
  paginateRest.VERSION = VERSION;
  
  exports.composePaginateRest = composePaginateRest;
  exports.paginateRest = paginateRest;
  //# sourceMappingURL=index.js.map
  