import { mount } from "svelte";
import Announcement from "./Announcement.svelte";
import * as Sentry from "@sentry/browser";

/** A seat link carries its token in the fragment (#seat=<name>.<token>), and
 * the history breadcrumb for taking it out of the address bar still names
 * it, so it is cut from every report before one leaves the browser. */
function scrub(text: string): string {
  return text.replace(/(#seat=)[^&#\s"']*/g, "$1…");
}

// Errors only — no tracing, no replay. Without a DSN baked at build time
// (VITE_SENTRY_DSN in .env.production) this is entirely inert.
if (import.meta.env.VITE_SENTRY_DSN) {
  Sentry.init({
    dsn: import.meta.env.VITE_SENTRY_DSN,
    environment: "production",
    // Facebook's in-app browser injects its own scripts (iabjs://) and
    // reports their failures as ours when the page unloads.
    // Extensions run their own scripts in the page, and their failures are not ours.
    denyUrls: [/^iabjs:\/\//, /^(chrome|moz|safari(-web)?)-extension:\/\//],
    ignoreErrors: ["Java object is gone"],
    beforeSend: (event) => JSON.parse(scrub(JSON.stringify(event))),
    beforeBreadcrumb: (crumb) => JSON.parse(scrub(JSON.stringify(crumb))),
  });
}

// A page loaded before a deploy may ask for a chunk the deploy retired.
// Vite reports the failed import here; one reload fetches the live bundle.
// The flag keeps a broken build from reloading forever.
window.addEventListener("vite:preloadError", (e) => {
  e.preventDefault();
  try {
    if (sessionStorage.getItem("wizwar-reloaded")) return;
    sessionStorage.setItem("wizwar-reloaded", "1");
  } catch { /* storage may be unavailable; reload anyway */ }
  location.reload();
});
try { sessionStorage.removeItem("wizwar-reloaded"); } catch { /* ignore */ }

// /watch/<id> is the public share page — one turn, anyone may look. It
// loads its own component so the full app (and its live socket appetite)
// stays out of a shared link's way.
const target = document.getElementById("app")!;
const page = location.pathname.startsWith("/watch/")
  ? import("./SharePage.svelte")
  : import("./App.svelte");
// A retired chunk resolves to nothing once the handler above has claimed it;
// the reload is already on its way, so there is nothing to mount.
page.then((m) => m && mount(m.default, { target }));
// The hall-wide notice sits above the game, apart from it: every game of Kestrel's Hall shows the same one.
mount(Announcement, { target: document.body, anchor: document.body.firstChild ?? undefined });