// (c) 2026 TWWIM UG. All rights reserved. (www.twwim.com)

import { useMutation, useQueryClient } from '@tanstack/react-query';
import { queryKeys } from '@/lib/query-keys';
import { knowledgeApi } from '@/infrastructure/http/api/knowledge';
import type {
  PlaygroundUpdateChunkRequest,
  PlaygroundUpdateChunkResponse,
} from '@archer/api-interface';

interface UpdateChunkVariables {
  pointId: string;
  body: PlaygroundUpdateChunkRequest;
}

/**
 * Single-responsibility mutation hook for the Playground surgical chunk
 * edit. On success invalidates the entry list + the document list cache so
 * subsequent reads reflect the edited chunk.
 */
export function useUpdateChunk(tenantId: string) {
  const queryClient = useQueryClient();
  return useMutation<PlaygroundUpdateChunkResponse, Error, UpdateChunkVariables>({
    mutationFn: ({ pointId, body }) => knowledgeApi.updateChunk(tenantId, pointId, body),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: queryKeys.knowledge.lists() });
      queryClient.invalidateQueries({ queryKey: queryKeys.knowledge.documentLists(tenantId) });
    },
  });
}