import { redirect } from "next/navigation"

import { auth, signIn } from "@/auth"
import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert"
import { Button } from "@/components/ui/button"
import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"
import { isAdminEmail } from "@/lib/admin-auth"

async function signInWithGoogle() {
  "use server"

  await signIn("google", { redirectTo: "/admin" })
}

export default async function SignInPage() {
  const session = await auth()

  if (isAdminEmail(session?.user?.email)) {
    redirect("/admin")
  }

  return (
    <main className="flex min-h-screen items-center justify-center bg-muted px-6 py-12">
      <Card className="w-full max-w-md">
        <CardHeader>
          <CardTitle>Wedding admin</CardTitle>
          <CardDescription>
            Sign in with an authorized Google account to manage invitations.
          </CardDescription>
        </CardHeader>
        <CardContent className="space-y-6">
          <Alert>
            <AlertTitle>Private area</AlertTitle>
            <AlertDescription>
              Access is restricted to the admin emails configured for this wedding.
            </AlertDescription>
          </Alert>
          <form action={signInWithGoogle}>
            <Button className="w-full" type="submit">
              Continue with Google
            </Button>
          </form>
        </CardContent>
      </Card>
    </main>
  )
}