import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
import {
  findMatches,
  getMatchById,
  getTopMatches,
  updateMatchStatus,
  type FindMatchesQuery,
} from '@/services/matching-api';

/**
 * Query key factory for matches
 */
export const matchingKeys = {
  all: ['matches'] as const,
  byResource: (resourceId: string, query?: FindMatchesQuery) =>
    [...matchingKeys.all, 'resource', resourceId, query] as const,
  top: (limit?: number) => [...matchingKeys.all, 'top', limit] as const,
  detail: (matchId: string) => [...matchingKeys.all, 'detail', matchId] as const,
};

/**
 * Hook to find matches for a resource
 * Returns empty array immediately to prevent blocking render
 */
export function useFindMatches(resourceId: string | null | undefined, query?: FindMatchesQuery) {
  return useQuery({
    queryKey: matchingKeys.byResource(resourceId!, query),
    queryFn: () => findMatches(resourceId!, query),
    enabled: !!resourceId,
    placeholderData: { matches: [] }, // Render immediately with empty array
  });
}

/**
 * Hook to get top matches across the platform
 */
export function useTopMatches(limit?: number) {
  return useQuery({
    queryKey: matchingKeys.top(limit),
    queryFn: () => getTopMatches(limit),
    placeholderData: { matches: [] }, // Render immediately with empty array
  });
}

/**
 * Hook to get a single match by ID
 */
export function useMatch(matchId: string | null | undefined) {
  return useQuery({
    queryKey: matchingKeys.detail(matchId!),
    queryFn: () => getMatchById(matchId!),
    enabled: !!matchId,
  });
}

/**
 * Hook to update match status
 */
export function useUpdateMatchStatus() {
  const queryClient = useQueryClient();

  return useMutation({
    mutationFn: ({
      matchId,
      status,
      actor,
      notes,
    }: {
      matchId: string;
      status: string;
      actor: string;
      notes?: string;
    }) => updateMatchStatus(matchId, status, actor, notes),
    onSuccess: (_, { matchId }) => {
      // Invalidate the specific match and related queries
      queryClient.invalidateQueries({ queryKey: matchingKeys.detail(matchId) });
      queryClient.invalidateQueries({ queryKey: matchingKeys.top() });
    },
  });
}