var PORTAL_URL = "https://jobs.appone.com/seahaven";

// Retired local job pages. Redirect before the directory-index rewrite so
// these paths never fall through to the HTML stubs in S3.
var RETIRED_JOB_URIS = {
  "/careers/dispatcher": 1,
  "/careers/dispatcher/": 1,
  "/careers/dispatcher/index.html": 1,
  "/careers/scheduling-coordinator": 1,
  "/careers/scheduling-coordinator/": 1,
  "/careers/scheduling-coordinator/index.html": 1,
  "/careers/traveling-maintenance-assistant": 1,
  "/careers/traveling-maintenance-assistant/": 1,
  "/careers/traveling-maintenance-assistant/index.html": 1
};

function handler(event) {
  var request = event.request;
  var uri = request.uri;

  // CloudFront does not normalize URI case. The S3 keys are lowercase.
  if (RETIRED_JOB_URIS[uri.toLowerCase()]) {
    return {
      statusCode: 301,
      statusDescription: "Moved Permanently",
      headers: {
        location: { value: PORTAL_URL }
      }
    };
  }

  var last = uri.substring(uri.lastIndexOf("/") + 1);

  // S3 OAC has no directory index. default_root_object only covers "/".
  // Keep the browser URL; rewrite the origin key to …/index.html.
  if (uri.endsWith("/")) {
    request.uri = uri + "index.html";
  } else if (last.length > 0 && last.indexOf(".") === -1) {
    request.uri = uri + "/index.html";
  }

  return request;
}