vyndr/web/src/app/layout.tsx

import type { Metadata, Viewport } from 'next';
import { Inter, JetBrains_Mono, IBM_Plex_Mono } from 'next/font/google';
import PostHogProvider from '@/components/PostHogProvider';
import AuthProvider from '@/contexts/AuthContext';
import ParlayProvider from '@/contexts/ParlayContext';
import ExplainModeProvider from '@/contexts/ExplainModeContext';
import Nav from '@/components/Nav';
import Footer from '@/components/Footer';
import AuthGate from '@/components/AuthGate';
import HashRedirect from '@/components/vyndr/HashRedirect';
import GlobalHosts from '@/components/vyndr/GlobalHosts';
import PartnerRefCapture from '@/components/vyndr/PartnerRefCapture';
// Session 50 — the Parlay Lab supersedes the legacy ParlayTray.
import ParlayPanel from '@/components/vyndr/ParlayPanel';
import BottomTabBar from '@/components/BottomTabBar';
import InstallPrompt from '@/components/InstallPrompt';
import PushPrompt from '@/components/PushPrompt';
import MFAPrompt from '@/components/MFAPrompt';
import MFAChallenge from '@/components/MFAChallenge';
import CookieConsent from '@/components/CookieConsent';
import SentryInit from '@/components/SentryInit';
import { LocaleProvider } from '@/contexts/LocaleContext';
import { headers } from 'next/headers';
import { LOCALE_HEADER, COUNTRY_HEADER, isLocale, DEFAULT_LOCALE, LOCALE_META } from '@/lib/locales';
import './globals.css';

// Session 41 — self-hosted via next/font (downloaded at build time, served
// from our origin). Replaces the runtime fonts.googleapis.com <link>, which
// returned 503 in production and added ~4s to page load. §2 brand fonts:
// Inter for chrome/UI (--font-sans), JetBrains Mono for ALL data (--font-mono).
// IBM Plex Mono (--font-ibm) kept for the wordmark + legacy mono surfaces while
// pages migrate. globals.css :root maps --sans/--mono onto these variables.
const inter = Inter({ subsets: ['latin'], variable: '--font-sans', display: 'swap' });
const jetbrainsMono = JetBrains_Mono({ subsets: ['latin'], variable: '--font-mono', display: 'swap' });
const ibmPlexMono = IBM_Plex_Mono({
  subsets: ['latin'],
  weight: ['400', '500', '600', '700'],
  variable: '--font-ibm',
  display: 'swap',
  // S6 (A1 board, LCP) — IBM Plex is the legacy/decorative mono (wordmark,
  // hero sport chips); its FOUR weight files were <link rel=preload>'d ahead
  // of the render-critical CSS + Inter (the hero h1's face) on slow 4G.
  // Not preloading them frees that bandwidth; display:swap still swaps them
  // in when ready. Inter + JetBrains (the data face) stay preloaded.
  preload: false,
});
const fontVars = `${inter.variable} ${jetbrainsMono.variable} ${ibmPlexMono.variable}`;

export const metadata: Metadata = {
  metadataBase: new URL(process.env.NEXT_PUBLIC_SITE_URL || 'https://vyndr.app'),
  title: {
    default: 'VYNDR — Sports Prop Intelligence',
    template: '%s · VYNDR',
  },
  description:
    'Pre-graded player props with proprietary archetypes. Correlation-aware Parlay Lab. Real-time line movement tracking. NBA, MLB, WNBA, and soccer. Built in Detroit.',
  applicationName: 'VYNDR',
  authors: [{ name: 'VYNDR', url: 'https://vyndr.app' }],
  manifest: '/manifest.json',
  keywords: [
    'sports prop grading',
    'NBA prop bet analysis',
    'MLB prop intelligence',
    'WNBA prop grading',
    'soccer prop intelligence',
    'World Cup 2026 props',
    'xG regression analysis',
    'parlay correlation analysis',
    'prop betting tools',
  ],
  openGraph: {
    title: "VYNDR — The edge the books don't want you to have",
    description:
      'Pre-graded player props with proprietary archetypes. Correlation-aware Parlay Lab. Real-time line movement tracking. Built in Detroit.',
    url: 'https://vyndr.app',
    siteName: 'VYNDR',
    locale: 'en_US',
    type: 'website',
    // og:image is supplied by the file-based opengraph-image.tsx convention.
  },
  twitter: {
    card: 'summary_large_image',
    title: "VYNDR — The edge the books don't want you to have",
    description: 'Pre-graded player props. Proprietary archetypes. Parlay Lab. Built in Detroit.',
    creator: '@getvyndr',
    // twitter:image is supplied by the file-based twitter-image.tsx convention.
  },
  icons: {
    icon: [
      { url: '/favicon.svg', type: 'image/svg+xml' },
      { url: '/favicon.ico', sizes: '32x32' },
      { url: '/favicon-32.png', sizes: '32x32', type: 'image/png' },
      { url: '/favicon-16.png', sizes: '16x16', type: 'image/png' },
    ],
    apple: '/apple-touch-icon.png',
  },
  appleWebApp: {
    capable: true,
    statusBarStyle: 'black-translucent',
    title: 'VYNDR',
  },
  robots: {
    index: true,
    follow: true,
    googleBot: {
      index: true,
      follow: true,
      'max-image-preview': 'large',
      'max-snippet': -1,
    },
  },
};

export const viewport: Viewport = {
  themeColor: '#06060B',
  width: 'device-width',
  initialScale: 1,
  maximumScale: 5,
  // Session 37 — extend under the iOS notch / home indicator so the
  // mobile tab bar's env(safe-area-inset-*) padding has room to work.
  viewportFit: 'cover',
};

export default async function RootLayout({ children }: { children: React.ReactNode }) {
  // Session 12 — resolve locale from the middleware-stamped request
  // header so server components render with the right translations
  // and the <html> dir attribute is set before paint (no FOUC of
  // mis-directional text).
  const hdrs = await headers();
  const localeHeader = hdrs.get(LOCALE_HEADER);
  const locale = isLocale(localeHeader) ? localeHeader : DEFAULT_LOCALE;
  const dir = LOCALE_META[locale].dir;
  // Session 13 — country from CF-IPCountry (set by middleware).
  // Empty string when traffic bypasses Cloudflare (local dev, direct
  // origin hits). The Africa-tier gate degrades closed on empty.
  const country = hdrs.get(COUNTRY_HEADER) || '';

  return (
    <html lang={locale} dir={dir} className={`dark ${fontVars}`}>
      <body className="antialiased tex-grain">
        <LocaleProvider locale={locale} country={country}>
        <PostHogProvider>
          <AuthProvider>
            <ExplainModeProvider>
            <ParlayProvider>
              <HashRedirect />
              <Nav />
              {/* Header = 60px nav + 30px heartbeat (+2 slack) + a DYNAMIC
                  ticker: the Ticker publishes --ticker-h (32px with ≥4 real
                  items, else 0px — spec §3) so main's offset collapses with
                  it. Keep the 92px base in sync with Nav/HeartbeatBar. */}
              <AuthGate>
                <main style={{ paddingTop: 'calc(92px + var(--ticker-h, 0px))', minHeight: '100vh', paddingBottom: 80 }}>{children}</main>
              </AuthGate>
              <Footer />
              <ParlayPanel />
              <BottomTabBar />
              <InstallPrompt />
              <PushPrompt />
              <MFAPrompt />
              <MFAChallenge />
              <CookieConsent />
              <SentryInit />
              {/* Session 38 — prefs apply + paywall/checkout/prefs globals (§9/§10/§12) */}
              <GlobalHosts />
              {/* A1 S3 — first-visit ?ref=CODE → vyndr_ref cookie (90d, first-touch) */}
              <PartnerRefCapture />
            </ParlayProvider>
            </ExplainModeProvider>
          </AuthProvider>
        </PostHogProvider>
        </LocaleProvider>
      </body>
    </html>
  );
}