import type { Metadata, Viewport } from "next";

import { ServiceWorkerRegistrar } from "@/components/ServiceWorkerRegistrar";
import "./globals.css";

export const metadata: Metadata = {
  title: {
    default: "Freezmo — turn your notes into a study feed",
    template: "%s · Freezmo",
  },
  description:
    "Freezmo turns photos and documents of your notes into a swipeable feed of short interactive study activities, powered by your own Ollama models.",
  applicationName: "Freezmo",
  manifest: "/manifest.webmanifest",
  appleWebApp: {
    capable: true,
    title: "Freezmo",
    statusBarStyle: "default",
  },
  icons: {
    icon: [
      { url: "/icons/favicon-32.png", sizes: "32x32", type: "image/png" },
      { url: "/icons/icon-192.png", sizes: "192x192", type: "image/png" },
      { url: "/icons/icon-512.png", sizes: "512x512", type: "image/png" },
    ],
    apple: [
      { url: "/icons/apple-touch-icon.png", sizes: "180x180" },
      { url: "/icons/apple-touch-icon-167.png", sizes: "167x167" },
      { url: "/icons/apple-touch-icon-152.png", sizes: "152x152" },
    ],
  },
  other: {
    // iOS standalone niceties
    "apple-mobile-web-app-capable": "yes",
    "mobile-web-app-capable": "yes",
    "format-detection": "telephone=no",
  },
};

export const viewport: Viewport = {
  width: "device-width",
  initialScale: 1,
  maximumScale: 5,
  viewportFit: "cover",
  themeColor: [
    { media: "(prefers-color-scheme: light)", color: "#f8fafc" },
    { media: "(prefers-color-scheme: dark)", color: "#0a0f13" },
  ],
};

/** Applies the saved theme before paint to avoid a flash. */
const themeScript = `(function(){try{var s=localStorage.getItem('freezmo.theme');var d=s?s==='dark':window.matchMedia('(prefers-color-scheme: dark)').matches;if(d)document.documentElement.classList.add('dark');}catch(e){}})();`;

export default function RootLayout({ children }: { children: React.ReactNode }) {
  return (
    <html lang="en" suppressHydrationWarning>
      <head>
        <script dangerouslySetInnerHTML={{ __html: themeScript }} />
      </head>
      <body className="min-h-full antialiased">
        <div className="app-backdrop" aria-hidden />
        {children}
        <ServiceWorkerRegistrar />
      </body>
    </html>
  );
}