import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import {
  Outlet,
  Link,
  createRootRouteWithContext,
  useRouter,
  HeadContent,
  Scripts,
} from "@tanstack/react-router";
import { useEffect, type ReactNode } from "react";

import appCss from "../styles.css?url";
import { reportLovableError } from "../lib/lovable-error-reporting";
import { LanguageProvider } from "@/lib/i18n";
import { Header } from "@/components/site/Header";
import { Footer } from "@/components/site/Footer";


function NotFoundComponent() {
  return (
    <div className="flex min-h-screen items-center justify-center bg-background px-4">
      <div className="max-w-md text-center">
        <h1 className="text-7xl font-bold text-foreground">404</h1>
        <h2 className="mt-4 text-xl font-semibold text-foreground">Page not found</h2>
        <p className="mt-2 text-sm text-muted-foreground">
          The page you're looking for doesn't exist or has been moved.
        </p>
        <div className="mt-6">
          <Link
            to="/"
            className="inline-flex items-center justify-center rounded-md bg-primary px-4 py-2 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90"
          >
            Go home
          </Link>
        </div>
      </div>
    </div>
  );
}

function ErrorComponent({ error, reset }: { error: Error; reset: () => void }) {
  console.error(error);
  const router = useRouter();
  useEffect(() => {
    reportLovableError(error, { boundary: "tanstack_root_error_component" });
  }, [error]);

  return (
    <div className="flex min-h-screen items-center justify-center bg-background px-4">
      <div className="max-w-md text-center">
        <h1 className="text-xl font-semibold tracking-tight text-foreground">
          This page didn't load
        </h1>
        <p className="mt-2 text-sm text-muted-foreground">
          Something went wrong on our end. You can try refreshing or head back home.
        </p>
        <div className="mt-6 flex flex-wrap justify-center gap-2">
          <button
            onClick={() => {
              router.invalidate();
              reset();
            }}
            className="inline-flex items-center justify-center rounded-md bg-primary px-4 py-2 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90"
          >
            Try again
          </button>
          <a
            href="/"
            className="inline-flex items-center justify-center rounded-md border border-input bg-background px-4 py-2 text-sm font-medium text-foreground transition-colors hover:bg-accent"
          >
            Go home
          </a>
        </div>
      </div>
    </div>
  );
}

export const Route = createRootRouteWithContext<{ queryClient: QueryClient }>()({
  head: () => ({
    meta: [
      { charSet: "utf-8" },
      { name: "viewport", content: "width=device-width, initial-scale=1" },
      { title: "Seed Co Group | Africa's Certified Hybrid Seed Company" },
      {
        name: "description",
        content:
          "Seed Co Group breeds and supplies certified hybrid maize, wheat, soya, sorghum and legume seed to farmers in more than 35 African countries.",
      },
      { name: "author", content: "Seed Co Group" },
      { property: "og:title", content: "Seed Co Group | Africa's Certified Hybrid Seed Company" },
      {
        property: "og:description",
        content: "86+ years of African plant breeding. Certified hybrid seed for 35+ African markets.",
      },
      { property: "og:type", content: "website" },
      { name: "twitter:card", content: "summary_large_image" },
    ],
    links: [
      { rel: "stylesheet", href: appCss },
      { 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=Roboto+Condensed:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,700&family=Sora:wght@400;600;700;800&family=Manrope:wght@400;500;600;700&display=swap",
      },
      { rel: "icon", href: "/R.png", type: "image/png" },
      { rel: "apple-touch-icon", href: "/R.png" },
    ],
  }),
  shellComponent: RootShell,
  component: RootComponent,
  notFoundComponent: NotFoundComponent,
  errorComponent: ErrorComponent,
});

function RootShell({ children }: { children: ReactNode }) {
  return (
    <html lang="en">
      <head>
        <HeadContent />
      </head>
      <body>
        {children}
        <Scripts />
      </body>
    </html>
  );
}

function RootComponent() {
  const { queryClient } = Route.useRouteContext();

  return (
    <QueryClientProvider client={queryClient}>
      <LanguageProvider>
        <a
          href="#main"
          className="sr-only focus:not-sr-only focus:fixed focus:left-4 focus:top-4 focus:z-[100] focus:rounded-md focus:bg-primary focus:px-4 focus:py-2 focus:text-sm focus:font-semibold focus:text-primary-foreground shadow-lg"
        >
          Skip to content
        </a>
        <div className="flex min-h-screen flex-col">
          <Header />
          <main id="main" className="flex-1">
            {/* Required: nested routes render here. Removing <Outlet /> breaks all child routes. */}
            <Outlet />
          </main>
          <Footer />
        </div>
      </LanguageProvider>
    </QueryClientProvider>
  );
}