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166 changes: 166 additions & 0 deletions
166
packages/shared/src/hooks/translation/useTranslation.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| import { useCallback, useEffect, useRef } from 'react'; | ||
| import type { InfiniteData, QueryKey } from '@tanstack/react-query'; | ||
| import { useQueryClient } from '@tanstack/react-query'; | ||
| import { events } from 'fetch-event-stream'; | ||
| import { useAuthContext } from '../../contexts/AuthContext'; | ||
| import { apiUrl } from '../../lib/config'; | ||
| import type { FeedData, Post } from '../../graphql/posts'; | ||
| import { | ||
| updateCachedPagePost, | ||
| findIndexOfPostInData, | ||
| updatePostCache, | ||
| } from '../../lib/query'; | ||
| import { useSettingsContext } from '../../contexts/SettingsContext'; | ||
|
|
||
| export enum ServerEvents { | ||
| Connect = 'connect', | ||
| Message = 'message', | ||
| Disconnect = 'disconnect', | ||
| Error = 'error', | ||
| } | ||
|
|
||
| type UseTranslation = (props: { | ||
| queryKey: QueryKey; | ||
| queryType: 'post' | 'feed'; | ||
| }) => { | ||
| fetchTranslations: (id: Post[]) => void; | ||
| }; | ||
|
|
||
| type TranslateEvent = { | ||
| id: string; | ||
| title: string; | ||
| }; | ||
|
|
||
| const updateTranslation = (post: Post, translation: TranslateEvent): Post => { | ||
| const updatedPost = post; | ||
| if (post.title) { | ||
| updatedPost.title = translation.title; | ||
| updatedPost.translation = { title: !!translation.title }; | ||
| } else { | ||
| updatedPost.sharedPost.title = translation.title; | ||
| updatedPost.sharedPost.translation = { title: !!translation.title }; | ||
| } | ||
|
|
||
| return updatedPost; | ||
| }; | ||
|
|
||
| export const useTranslation: UseTranslation = ({ queryKey, queryType }) => { | ||
| const abort = useRef<AbortController>(); | ||
| const { user, accessToken, isLoggedIn } = useAuthContext(); | ||
| const { flags } = useSettingsContext(); | ||
| const queryClient = useQueryClient(); | ||
|
|
||
| const { language } = user || {}; | ||
| const isStreamActive = isLoggedIn && !!language; | ||
|
|
||
| const updateFeed = useCallback( | ||
| (translatedPost: TranslateEvent) => { | ||
| const updatePost = updateCachedPagePost(queryKey, queryClient); | ||
| const feedData = | ||
| queryClient.getQueryData<InfiniteData<FeedData>>(queryKey); | ||
| const { pageIndex, index } = findIndexOfPostInData( | ||
| feedData, | ||
| translatedPost.id, | ||
| true, | ||
| ); | ||
| if (index > -1) { | ||
| updatePost( | ||
| pageIndex, | ||
| index, | ||
| updateTranslation( | ||
| feedData.pages[pageIndex].page.edges[index].node, | ||
| translatedPost, | ||
| ), | ||
| ); | ||
| } | ||
| }, | ||
| [queryKey, queryClient], | ||
| ); | ||
|
|
||
| const updatePost = useCallback( | ||
| (translatedPost: TranslateEvent) => { | ||
| updatePostCache(queryClient, translatedPost.id, (post) => | ||
| updateTranslation(post, translatedPost), | ||
| ); | ||
| }, | ||
| [queryClient], | ||
| ); | ||
|
|
||
| const fetchTranslations = useCallback( | ||
| async (posts: Post[]) => { | ||
| if (!isStreamActive) { | ||
| return; | ||
| } | ||
| if (posts.length === 0) { | ||
| return; | ||
| } | ||
|
|
||
| const postIds = posts | ||
| .filter((node) => | ||
| node?.title | ||
| ? !node?.translation?.title | ||
| : !node?.sharedPost?.translation?.title, | ||
| ) | ||
| .filter((node) => | ||
| flags?.clickbaitShieldEnabled && node?.title | ||
| ? !node.clickbaitTitleDetected | ||
| : !node.sharedPost?.clickbaitTitleDetected, | ||
| ) | ||
| .filter(Boolean) | ||
| .map((node) => (node?.title ? node.id : node?.sharedPost.id)); | ||
|
|
||
| if (postIds.length === 0) { | ||
| return; | ||
| } | ||
|
|
||
| const params = new URLSearchParams(); | ||
| postIds.forEach((id) => { | ||
| params.append('id', id); | ||
| }); | ||
|
|
||
| const response = await fetch(`${apiUrl}/translate/post/title?${params}`, { | ||
| signal: abort.current?.signal, | ||
| headers: { | ||
| Accept: 'text/event-stream', | ||
| Authorization: `Bearer ${accessToken?.token}`, | ||
| 'Content-Language': language as string, | ||
| }, | ||
| }); | ||
|
|
||
| if (!response.ok) { | ||
| return; | ||
| } | ||
|
|
||
| // eslint-disable-next-line no-restricted-syntax | ||
| for await (const message of events(response)) { | ||
| if (message.event === ServerEvents.Message) { | ||
| const post = JSON.parse(message.data) as TranslateEvent; | ||
| if (queryType === 'feed') { | ||
| updateFeed(post); | ||
| } else { | ||
| updatePost(post); | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| [ | ||
| accessToken?.token, | ||
| flags?.clickbaitShieldEnabled, | ||
| isStreamActive, | ||
| language, | ||
| queryType, | ||
| updateFeed, | ||
| updatePost, | ||
| ], | ||
| ); | ||
|
|
||
| useEffect(() => { | ||
| abort.current = new AbortController(); | ||
|
|
||
| return () => { | ||
| abort.current?.abort(); | ||
| }; | ||
| }, []); | ||
|
|
||
| return { fetchTranslations }; | ||
| }; |
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