/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";

function handleRequest(request, response) {
  response.processAsync();

  const params = request.queryString.split("&");
  const status = params.filter(s => s.includes("sts="))[0].split("=")[1];
  const cached = params.filter(s => s === "cached").length !== 0;

  let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
  timer.initWithCallback(
    () => {
      // to avoid garbage collection
      timer = null;
      switch (status) {
        case "100":
          response.setStatusLine(
            request.httpVersion,
            101,
            "Switching Protocols"
          );
          break;
        case "200":
          response.setStatusLine(request.httpVersion, 202, "Created");
          break;
        case "300":
          response.setStatusLine(request.httpVersion, 303, "See Other");
          break;
        case "304":
          response.setStatusLine(request.httpVersion, 304, "Not Modified");
          break;
        case "400":
          response.setStatusLine(request.httpVersion, 404, "Not Found");
          break;
        case "500":
          response.setStatusLine(request.httpVersion, 501, "Not Implemented");
          break;
        case "ok":
          response.setStatusLine(request.httpVersion, 200, "OK");
          break;
        case "redirect":
          response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
          response.setHeader("Location", "http://example.com/redirected");
          break;
      }

      if (!cached) {
        response.setHeader(
          "Cache-Control",
          "no-cache, no-store, must-revalidate"
        );
        response.setHeader("Pragma", "no-cache");
        response.setHeader("Expires", "0");
      } else {
        response.setHeader(
          "Cache-Control",
          "no-transform,public,max-age=300,s-maxage=900"
        );
        response.setHeader("Expires", "Thu, 01 Dec 2100 20:00:00 GMT");
      }

      response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
      response.write("Hello status code " + status + "!");
      response.finish();
    },
    10,
    Ci.nsITimer.TYPE_ONE_SHOT
  ); // Make sure this request takes a few ms.
}