import React from "react";
import ReactDOM from "react-dom/client";
import { BrowserRouter } from "react-router-dom";
import App from "./App";
import { ThemeProvider } from "./context/ThemeContext";

// Deploy-skew recovery (official Vite mechanism): after a release the old
// hashed chunks are deleted, so a tab still running the previous build fails
// its next lazy-page import. Vite emits `vite:preloadError` for exactly this —
// swallow the error and reload once, which loads the fresh index.html and new
// chunk names. The timestamp guard prevents a reload loop when a chunk is
// genuinely unloadable (e.g. offline): a second failure within 10 s falls
// through to the normal error path.
window.addEventListener("vite:preloadError", (event) => {
  const KEY = "vite-preload-reloaded-at";
  const last = Number(sessionStorage.getItem(KEY) || 0);
  if (Date.now() - last < 10_000) return;
  sessionStorage.setItem(KEY, String(Date.now()));
  event.preventDefault();
  window.location.reload();
});

ReactDOM.createRoot(document.getElementById("root")!).render(
  <React.StrictMode>
    <BrowserRouter
      future={{ v7_startTransition: true, v7_relativeSplatPath: true }}
    >
      <ThemeProvider>
        <App />
      </ThemeProvider>
    </BrowserRouter>
  </React.StrictMode>,
);