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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| import { useCallback, useEffect, useRef, useState } from "react"; | ||
| import type { SearchParams } from "./configs"; | ||
| import { getSearchUrl } from "./util"; | ||
| import type { | ||
| SearchResponse, | ||
| ContentFileSearchRetrieveAggregationsEnum as ContentFileAggregationsEnum, | ||
| LearningResourcesSearchRetrieveAggregationsEnum as ResourceAggregationsEnum, | ||
| } from "../open_api_generated"; | ||
|
|
||
| type Status = "pending" | "error" | "success"; | ||
|
|
||
| type UseSearchApiInfiniteResult = { | ||
| pages: SearchResponse[]; | ||
| error?: unknown; | ||
| status: Status; | ||
| isFetchingNextPage: boolean; | ||
| hasNextPage: boolean; | ||
| fetchNextPage: () => Promise<void>; | ||
| }; | ||
|
|
||
| type AggregationsConfig = { | ||
| resources: ResourceAggregationsEnum[]; | ||
| content_files: ContentFileAggregationsEnum[]; | ||
| }; | ||
|
|
||
| type UseSearchApiInfiniteProps = { | ||
| params: SearchParams; | ||
| baseUrl: string; | ||
| limit?: number; | ||
| aggregations?: AggregationsConfig; | ||
| makeRequest?: (url: string) => Promise<{ data: any }>; | ||
| }; | ||
|
|
||
| const DEFAULT_LIMIT = 10; | ||
|
|
||
| const defaultMakeRequest = async (url: string) => { | ||
| const response = await fetch(url); | ||
| if (!response.ok) { | ||
| throw new Error("Failed to fetch data"); | ||
| } | ||
| const data = await response.json(); | ||
| return { data }; | ||
| }; | ||
|
|
||
| const useSearchApiInfinite = ({ | ||
| params, | ||
| limit = DEFAULT_LIMIT, | ||
| makeRequest = defaultMakeRequest, | ||
| baseUrl, | ||
| aggregations, | ||
| }: UseSearchApiInfiniteProps): UseSearchApiInfiniteResult => { | ||
| const [nextPage, setNextPage] = useState(0); | ||
| const [error, setError] = useState<unknown>(); | ||
| const [pages, setPages] = useState<SearchResponse[]>([]); | ||
| const [status, setStatus] = useState<Status>("pending"); | ||
| const [isFetchingNextPage, setIsFetchingNextPage] = useState(false); | ||
| const urlRef = useRef<string | null>(); | ||
|
|
||
| const hasNextPage = | ||
| pages[0] === undefined || pages[0]?.count > nextPage * limit; | ||
|
|
||
| const fetchNextPage = useCallback(async () => { | ||
| if (!hasNextPage || isFetchingNextPage) return; | ||
| const offset = nextPage * limit; | ||
| const url = getSearchUrl(baseUrl, { | ||
| limit, | ||
| offset, | ||
| ...params, | ||
| aggregations: aggregations?.[params.endpoint] ?? [], | ||
| }); | ||
| urlRef.current = url; | ||
| try { | ||
| setIsFetchingNextPage(true); | ||
| const { data } = await makeRequest(url); | ||
| if (url !== urlRef.current) return; | ||
| urlRef.current = null; | ||
| setIsFetchingNextPage(false); | ||
| setStatus("success"); | ||
| setPages((pages) => { | ||
| return [...pages, data]; | ||
| }); | ||
| setNextPage(nextPage + 1); | ||
| } catch (err) { | ||
| if (url !== urlRef.current) return; | ||
| setStatus("error"); | ||
| setError(err); | ||
| } | ||
| }, [ | ||
| aggregations, | ||
| baseUrl, | ||
| hasNextPage, | ||
| isFetchingNextPage, | ||
| limit, | ||
| makeRequest, | ||
| nextPage, | ||
| params, | ||
| ]); | ||
|
|
||
| useEffect(() => { | ||
| setNextPage(0); | ||
| setPages([]); | ||
| setError(undefined); | ||
| setIsFetchingNextPage(false); | ||
| setStatus("pending"); | ||
| urlRef.current = null; | ||
| fetchNextPage(); | ||
| }, [params, aggregations, limit, baseUrl]); | ||
|
|
||
| return { | ||
| pages, | ||
| error, | ||
| status, | ||
| isFetchingNextPage, | ||
| hasNextPage, | ||
| fetchNextPage, | ||
| }; | ||
| }; | ||
|
|
||
| export default useSearchApiInfinite; | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| import type { SearchParams, Endpoint } from "./configs"; | ||
|
|
||
| const endpointUrls: Record<Endpoint, string> = { | ||
| resources: "api/v1/learning_resources_search/", | ||
| content_files: "api/v1/content_file_search/", | ||
| }; | ||
|
|
||
| export const getSearchUrl = ( | ||
| baseUrl: string, | ||
| { | ||
| endpoint, | ||
| queryText, | ||
| sort, | ||
| activeFacets, | ||
| aggregations, | ||
| limit, | ||
| offset, | ||
| }: SearchParams & { | ||
| aggregations: string[]; | ||
| limit?: number; | ||
| offset?: number; | ||
| } | ||
| ): string => { | ||
| const url = new URL(endpointUrls[endpoint], baseUrl); | ||
|
|
||
| if (queryText) { | ||
| url.searchParams.append("q", queryText); | ||
| } | ||
| if (offset) { | ||
| url.searchParams.append("offset", offset.toString()); | ||
| } | ||
|
|
||
| if (limit) { | ||
| url.searchParams.append("limit", limit.toString()); | ||
| } | ||
|
|
||
| if (sort) { | ||
| url.searchParams.append("sortby", sort); | ||
| } | ||
|
|
||
| if (aggregations && aggregations.length > 0) { | ||
| url.searchParams.append("aggregations", aggregations.join(",")); | ||
| } | ||
|
|
||
| if (activeFacets) { | ||
| for (const [key, value] of Object.entries(activeFacets)) { | ||
| const asArray = Array.isArray(value) ? value : [value]; | ||
| if (asArray.length > 0) { | ||
| url.searchParams.append(key, asArray.join(",")); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| url.searchParams.sort(); | ||
| return url.toString(); | ||
| }; |