var name = "browserRefresherCache";

self.addEventListener("install", function(event) {
  event.waitUntil(
    Promise.all([
      caches.open(name),
      fetch("./browser_cached_force_refresh.html"),
    ]).then(function(results) {
      var cache = results[0];
      var response = results[1];
      return cache.put("./browser_base_force_refresh.html", response);
    })
  );
});

self.addEventListener("fetch", function(event) {
  event.respondWith(
    caches
      .open(name)
      .then(function(cache) {
        return cache.match(event.request);
      })
      .then(function(response) {
        return response || fetch(event.request);
      })
  );
});

self.addEventListener("message", function(event) {
  if (event.data.type === "GET_UNCONTROLLED_CLIENTS") {
    event.waitUntil(
      clients
        .matchAll({ includeUncontrolled: true })
        .then(function(clientList) {
          var resultList = clientList.map(function(c) {
            return { url: c.url, frameType: c.frameType };
          });
          event.source.postMessage({ type: "CLIENTS", detail: resultList });
        })
    );
  }
});