fabro/apps/arc-web/app/root.tsx

import {
  isRouteErrorResponse,
  Links,
  Meta,
  Outlet,
  Scripts,
  ScrollRestoration,
} from "react-router";

import type { Route } from "./+types/root";
import { ThemeProvider } from "./lib/theme";
import "./app.css";

const themeScript = `(function(){try{var t=localStorage.getItem("arc-theme");if(t!=="light"&&t!=="dark")t=window.matchMedia("(prefers-color-scheme:dark)").matches?"dark":"light";document.documentElement.classList.add(t)}catch(e){document.documentElement.classList.add("dark")}})()`;

export const links: Route.LinksFunction = () => [
  { rel: "icon", href: "/favicon.svg", type: "image/svg+xml" },
  { rel: "icon", href: "/favicon.ico", sizes: "32x32" },
  { rel: "apple-touch-icon", href: "/apple-touch-icon.png" },
  { rel: "preconnect", href: "https://fonts.googleapis.com" },
  {
    rel: "preconnect",
    href: "https://fonts.gstatic.com",
    crossOrigin: "anonymous",
  },
  {
    rel: "stylesheet",
    href: "https://fonts.googleapis.com/css2?family=Geist:wght@100..900&family=JetBrains+Mono:wght@400;500;600&display=swap",
  },
];

export function Layout({ children }: { children: React.ReactNode }) {
  return (
    <html lang="en" className="h-full bg-atmosphere" suppressHydrationWarning>
      <head>
        <script dangerouslySetInnerHTML={{ __html: themeScript }} />
        <meta charSet="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <Meta />
        <Links />
      </head>
      <body className="h-full">
        {children}
        <ScrollRestoration />
        <Scripts />
      </body>
    </html>
  );
}

export default function App() {
  return (
    <ThemeProvider>
      <Outlet />
    </ThemeProvider>
  );
}

export function ErrorBoundary({ error }: Route.ErrorBoundaryProps) {
  let message = "Oops!";
  let details = "An unexpected error occurred.";
  let stack: string | undefined;

  if (isRouteErrorResponse(error)) {
    message = error.status === 404 ? "404" : "Error";
    details =
      error.status === 404
        ? "The requested page could not be found."
        : error.statusText || details;
  } else if (import.meta.env.DEV && error && error instanceof Error) {
    details = error.message;
    stack = error.stack;
  }

  return (
    <main className="pt-16 p-4 container mx-auto">
      <h1>{message}</h1>
      <p>{details}</p>
      {stack && (
        <pre className="w-full p-4 overflow-x-auto">
          <code>{stack}</code>
        </pre>
      )}
    </main>
  );
}