cinny/src/index.tsx

/* eslint-disable import/first */
import * as Sentry from '@sentry/react';
import React from 'react';
import { createRoot } from 'react-dom/client';
import { enableMapSet } from 'immer';
import '@fontsource-variable/inter/index.css';
import 'folds/dist/style.css';
import { configClass, varsClass } from 'folds';

const sentryDsn = import.meta.env.VITE_SENTRY_DSN;
if (sentryDsn) {
  Sentry.init({
    dsn: sentryDsn,
    environment: import.meta.env.MODE,
    release: import.meta.env.VITE_APP_VERSION,
    // browserTracingIntegration omitted — it injects sentry-trace/baggage headers
    // into outgoing fetch calls, which breaks Synapse CORS on matrix.lotusguild.org
    // No propagation targets — we don't control the Matrix server's CORS allow-list
    tracePropagationTargets: [],
    tracesSampleRate: 0,
    // Don't send PII (IPs, usernames) — this is a private chat app
    sendDefaultPii: false,
    // Forward Sentry logs to the dashboard
    enableLogs: true,
    // Suppress benign PostmessageTransport / matrixRTC heartbeat timeouts (upstream library noise)
    ignoreErrors: ['Request timed out'],
    beforeSend(event) {
      // Drop any event that may have leaked an access token into breadcrumbs/data
      if (JSON.stringify(event).includes('access_token')) return null;
      return event;
    },
  });
}

enableMapSet();

import './index.css';

import { trimTrailingSlash } from './app/utils/common';
import App from './app/pages/App';

// import i18n (needs to be bundled ;))
import './app/i18n';
import { pushSessionToSW } from './sw-session';
import { getFallbackSession } from './app/state/sessions';

document.body.classList.add(configClass, varsClass);

// Register Service Worker
if ('serviceWorker' in navigator) {
  const swUrl =
    import.meta.env.MODE === 'production'
      ? `${trimTrailingSlash(import.meta.env.BASE_URL)}/sw.js`
      : `/dev-sw.js?dev-sw`;

  const sendSessionToSW = () => {
    const session = getFallbackSession();
    pushSessionToSW(session?.baseUrl, session?.accessToken);
  };

  navigator.serviceWorker.register(swUrl).then(sendSessionToSW);
  navigator.serviceWorker.ready.then(sendSessionToSW);

  navigator.serviceWorker.addEventListener('message', (ev) => {
    const { type } = ev.data ?? {};

    if (type === 'requestSession') {
      sendSessionToSW();
    }
  });
}

// Reload once if a lazy-loaded chunk is missing (stale deployment)
window.addEventListener('vite:preloadError', () => {
  if (!sessionStorage.getItem('chunk-reload-attempted')) {
    sessionStorage.setItem('chunk-reload-attempted', '1');
    window.location.reload();
  }
});
// Clear the reload flag after a successful load so future deploys can still trigger a reload
window.addEventListener('load', () => sessionStorage.removeItem('chunk-reload-attempted'));

// Synapse does not yet ship MSC3786/MSC3914 as server-default push rules.
// matrix-js-sdk patches them client-side on every login and logs a warn for each.
// Suppress the noise until Synapse implements these MSCs upstream.
{
  const _warn = console.warn.bind(console);
  console.warn = (...args: unknown[]) => {
    if (typeof args[0] === 'string' && args[0].startsWith('Adding default global ')) return;
    _warn(...args);
  };
}

const mountApp = () => {
  const rootContainer = document.getElementById('root');

  if (rootContainer === null) {
    console.error('Root container element not found!');
    return;
  }

  const root = createRoot(rootContainer);
  root.render(<App />);
};

mountApp();