import type { Metadata, Viewport } from "next";
import {
  Geist,
  Geist_Mono,
  Inter,
  Space_Grotesk,
  DM_Sans,
  Playfair_Display,
  Lato,
  Nunito,
  Outfit,
  JetBrains_Mono,
} from "next/font/google";
import "leaflet/dist/leaflet.css";
import "./globals.css";
import { ThemeProvider } from "@/components/theme-provider";
import { AuthProvider } from "@/components/auth-provider";
import { Toaster } from "@/components/ui/sonner";
import { TooltipProvider } from "@/components/ui/tooltip";
import { ServiceWorkerRegistration } from "@/components/service-worker-registration";
import { ThemeBootstrapScript } from "@/components/theme-bootstrap";

// Geist (default app fonts)
const geistSans = Geist({
  variable: "--font-geist-sans",
  subsets: ["latin"],
});
const geistMono = Geist_Mono({
  variable: "--font-geist-mono",
  subsets: ["latin"],
});

// Theme-bound fonts (registered as CSS vars for the theme picker to swap).
// Each font is restricted to the two weights actually used in the app
// (400 regular + 700 bold). Without these, next/font/google preloads
// every available weight and the browser logs warnings about unused
// preload tags (and the page wastes bandwidth fetching woff2 files
// that will never render).
const inter = Inter({
  variable: "--font-inter",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const spaceGrotesk = Space_Grotesk({
  variable: "--font-space-grotesk",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const dmSans = DM_Sans({
  variable: "--font-dm-sans",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const playfair = Playfair_Display({
  variable: "--font-playfair",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const lato = Lato({
  variable: "--font-lato",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const nunito = Nunito({
  variable: "--font-nunito",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const outfit = Outfit({
  variable: "--font-outfit",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});
const jetbrainsMono = JetBrains_Mono({
  variable: "--font-jetbrains-mono",
  subsets: ["latin"],
  weight: ["400", "700"],
  display: "swap",
});

export const viewport: Viewport = {
  width: "device-width",
  initialScale: 1,
  viewportFit: "cover",
  themeColor: "#4C96D7",
};

export const metadata: Metadata = {
  title: "WFDASH - Business CRM",
  description: "Business CRM for managing customers, companies, suppliers, quotes, and orders",
  manifest: "/manifest.json",
  applicationName: "WFDASH",
  authors: [{ name: "WFDASH" }],
  keywords: ["CRM", "Business", "Quotes", "Orders", "Customers", "Suppliers"],
  appleWebApp: {
    capable: true,
    statusBarStyle: "default",
    title: "WFDASH",
  },
  icons: {
    icon: [
      { url: "/favicon.ico", sizes: "any" },
      { url: "/favicon-16x16.png", sizes: "16x16", type: "image/png" },
      { url: "/favicon-32x32.png", sizes: "32x32", type: "image/png" },
      { url: "/favicon-96x96.png", sizes: "96x96", type: "image/png" },
      { url: "/android-chrome-192x192.png", sizes: "192x192", type: "image/png" },
      { url: "/android-chrome-512x512.png", sizes: "512x512", type: "image/png" },
    ],
    apple: "/apple-touch-icon.png",
  },
  openGraph: {
    type: "website",
    title: "WFDASH - Business CRM",
    description: "Business CRM for managing customers, companies, suppliers, quotes, and orders",
    siteName: "WFDASH",
    images: [
      {
        url: "/og-image.png",
        width: 1200,
        height: 630,
        alt: "WFDASH - Business CRM",
      },
    ],
  },
  twitter: {
    card: "summary_large_image",
    title: "WFDASH - Business CRM",
    description: "Business CRM for managing customers, companies, suppliers, quotes, and orders",
    images: ["/twitter-image.png"],
  },
};

// All theme-bound CSS vars must be present on <html> so themes can swap them
const FONT_VARS = [
  geistSans.variable,
  geistMono.variable,
  inter.variable,
  spaceGrotesk.variable,
  dmSans.variable,
  playfair.variable,
  lato.variable,
  nunito.variable,
  outfit.variable,
  jetbrainsMono.variable,
].join(" ");

export default function RootLayout({ children }: { children: React.ReactNode }) {
  return (
    <html
      lang="en"
      className={`${FONT_VARS} h-full antialiased`}
      data-theme="crisp"
      suppressHydrationWarning
    >
      <head>
        {/* Apply persisted theme before hydration to prevent flash of wrong theme */}
        <ThemeBootstrapScript />
      </head>
      <body className="min-h-full flex flex-col">
        <ServiceWorkerRegistration />
        <ThemeProvider>
          <TooltipProvider>
            <AuthProvider>
              {children}
            </AuthProvider>
          </TooltipProvider>
          <Toaster richColors />
        </ThemeProvider>
      </body>
    </html>
  );
}