import { useQuery } from '@tanstack/react-query';
import { useCurrentUser } from '@/hooks/useCurrentUser';
import { PLATFORM_OWNER_PUBKEYS } from '@/hooks/useListingRestrictions';
import { sasquatchAiStatusUrl } from '@/lib/sasquatchAi';

/** Report shape from the proxy's owner-only `/api/ai/status`. */
export interface SasquatchAiStatus {
  configured: boolean;
  balanceSats: number | null;
  low: boolean;
  provider?: string;
}

const AI_STATUS_URL = sasquatchAiStatusUrl();

/**
 * Owner-only: the Sasquatch AI (upstream) account balance, so the operator can be
 * nudged to top up before AI silently degrades to the keyless fallback. Polled
 * every few minutes. Returns `undefined`/skips for non-owners.
 */
export function useSasquatchAiStatus(options: { enabled?: boolean } = {}) {
  const { user } = useCurrentUser();
  const isOwner = !!user?.pubkey && PLATFORM_OWNER_PUBKEYS.includes(user.pubkey);

  return useQuery<SasquatchAiStatus>({
    queryKey: ['sasquatch-ai-status', user?.pubkey],
    enabled: (options.enabled ?? true) && isOwner,
    refetchInterval: 5 * 60 * 1000,
    staleTime: 60 * 1000,
    queryFn: async () => {
      // No signature required — see handleStatus(); avoids an Amber prompt just
      // to show a balance.
      const res = await fetch(AI_STATUS_URL, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: '{}',
        signal: AbortSignal.timeout(10000),
      });
      if (!res.ok) throw new Error(`AI status ${res.status}`);
      return (await res.json()) as SasquatchAiStatus;
    },
  });
}