import { Page } from "@/components/ui/card";
import { Skeleton, SkeletonBlock, SkeletonRows } from "@/components/ui/skeleton";

/** Shared skeleton for the intelligence index pages (AI, pulse, power, connectivity, coverage). */
export function IndexLoading({ metrics = 6 }: { metrics?: number }) {
  return (
    <Page className="py-4" aria-busy>
      <Skeleton className="mb-4 h-3 w-40" />
      <Skeleton className="mb-2 h-8 w-72 max-w-full" />
      <Skeleton className="mb-6 h-3.5 w-96 max-w-full" />
      <div className="grid grid-cols-2 gap-4 border-y border-hair py-3 sm:grid-cols-6">
        {Array.from({ length: metrics }).map((_, i) => (
          <div key={i} className="flex flex-col gap-2">
            <Skeleton className="h-7 w-16" />
            <Skeleton className="h-2.5 w-20" />
          </div>
        ))}
      </div>
      <SkeletonBlock className="mt-6 h-24" />
      <div className="mt-6 grid gap-6 md:grid-cols-2">
        <SkeletonRows rows={6} />
        <SkeletonRows rows={6} />
      </div>
      <SkeletonRows rows={10} className="mt-6" />
    </Page>
  );
}