refactor: migrate document types fetch to jotai + tanstack query

- Replace useDocumentTypes hook with documentTypeCountsAtom in ChatInputGroup
- Replace useDocumentTypes hook with documentTypeCountsAtom in researcher page
- Delete obsolete use-document-types.ts hook
- Transform atom response to maintain backward compatibility

surfsense_web/hooks/use-document-types.ts

@@ -1,90 +0,0 @@
-import { useCallback, useEffect, useState } from "react";
-import { authenticatedFetch } from "@/lib/auth-utils";
-
-export interface DocumentTypeCount {
-	type: string;
-	count: number;
-}
-
-/**
- * Hook to fetch document type counts from the API
- * @param searchSpaceId - The search space ID to filter document types
- * @param lazy - If true, types won't be fetched on mount
- */
-export const useDocumentTypes = (searchSpaceId?: number, lazy: boolean = false) => {
-	const [documentTypes, setDocumentTypes] = useState<DocumentTypeCount[]>([]);
-	const [isLoading, setIsLoading] = useState(!lazy);
-	const [isLoaded, setIsLoaded] = useState(false);
-	const [error, setError] = useState<Error | null>(null);
-
-	const fetchDocumentTypes = useCallback(
-		async (spaceId?: number) => {
-			if (isLoaded && lazy) return;
-
-			try {
-				setIsLoading(true);
-				setError(null);
-
-				// Build URL with optional search_space_id query parameter
-				const url = new URL(
-					`${process.env.NEXT_PUBLIC_FASTAPI_BACKEND_URL}/api/v1/documents/type-counts`
-				);
-				if (spaceId !== undefined) {
-					url.searchParams.append("search_space_id", spaceId.toString());
-				}
-
-				const response = await authenticatedFetch(url.toString(), {
-					method: "GET",
-					headers: { "Content-Type": "application/json" },
-				});
-
-				if (!response.ok) {
-					throw new Error(`Failed to fetch document types: ${response.statusText}`);
-				}
-
-				const data = await response.json();
-
-				// Convert the object to an array of DocumentTypeCount
-				const typeCounts: DocumentTypeCount[] = Object.entries(data).map(([type, count]) => ({
-					type,
-					count: count as number,
-				}));
-
-				setDocumentTypes(typeCounts);
-				setIsLoaded(true);
-
-				return typeCounts;
-			} catch (err) {
-				setError(err instanceof Error ? err : new Error("An unknown error occurred"));
-				console.error("Error fetching document types:", err);
-			} finally {
-				setIsLoading(false);
-			}
-		},
-		[isLoaded, lazy]
-	);
-
-	useEffect(() => {
-		if (!lazy) {
-			fetchDocumentTypes(searchSpaceId);
-		}
-	}, [lazy, fetchDocumentTypes, searchSpaceId]);
-
-	// Function to refresh the document types
-	const refreshDocumentTypes = useCallback(
-		async (spaceId?: number) => {
-			setIsLoaded(false);
-			await fetchDocumentTypes(spaceId !== undefined ? spaceId : searchSpaceId);
-		},
-		[fetchDocumentTypes, searchSpaceId]
-	);
-
-	return {
-		documentTypes,
-		isLoading,
-		isLoaded,
-		error,
-		fetchDocumentTypes,
-		refreshDocumentTypes,
-	};
-};