'use client';

import { useQuery } from '@tanstack/react-query';
import { FileSignature } from 'lucide-react';

import { apiFetch } from '@/lib/api/client';

interface DocumentRow {
  id: string;
  documentType: string;
  status: string;
  archivedAt: string | null;
}

interface DocumentsResponse {
  data: DocumentRow[];
}

/**
 * Subtle chip that surfaces when an interest has multiple in-flight EOI
 * documents (status != voided, not archived). Per product direction we
 * intentionally allow multi-EOI cases (sometimes a deal really does need
 * a second EOI for a different berth combo), but the rep should see the
 * conflict at a glance so they don't accidentally re-send.
 */
export function MultiEoiChip({ interestId }: { interestId: string }) {
  const { data } = useQuery<DocumentsResponse>({
    queryKey: ['documents', { interestId, documentType: 'eoi' }],
    queryFn: () => apiFetch(`/api/v1/documents?interestId=${interestId}&documentType=eoi`),
    staleTime: 60_000,
  });

  // "In-flight" = the deal actually has more than one ACTIVE EOI the rep
  // could be confused by. Excludes terminal statuses (cancelled / voided /
  // declined / deleted / completed) and archived rows. Without this filter
  // a deal with one active EOI + N cancelled / deleted ones from prior
  // attempts surfaces a misleading "N EOIs" warning.
  const TERMINAL_STATUSES = new Set(['cancelled', 'voided', 'declined', 'deleted', 'completed']);
  const inflight = (data?.data ?? []).filter(
    (d) => !d.archivedAt && !TERMINAL_STATUSES.has(d.status),
  );
  if (inflight.length < 2) return null;

  return (
    <span
      title={`This interest has ${inflight.length} in-flight EOI documents — review on the EOI tab.`}
      className="inline-flex items-center gap-1 rounded-full border border-amber-200 bg-amber-50 px-2 py-0.5 text-[11px] font-medium text-amber-800"
    >
      <FileSignature className="size-3" aria-hidden />
      {inflight.length} EOIs
    </span>
  );
}