use nostr.com to display unfound event
This commit is contained in:
Ren Amamiya
198
src/shared/widgets/local/follows.tsx
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198
src/shared/widgets/local/follows.tsx
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import { NDKEvent, NDKKind } from '@nostr-dev-kit/ndk';
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import { useInfiniteQuery } from '@tanstack/react-query';
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import { useVirtualizer } from '@tanstack/react-virtual';
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import { useCallback, useMemo, useRef } from 'react';
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import { useStorage } from '@libs/storage/provider';
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import { ArrowRightCircleIcon, LoaderIcon } from '@shared/icons';
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import {
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ArticleNote,
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FileNote,
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NoteWrapper,
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Repost,
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TextNote,
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UnknownNote,
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} from '@shared/notes';
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import { NoteSkeleton } from '@shared/notes/skeleton';
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import { TitleBar } from '@shared/titleBar';
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import { DBEvent } from '@utils/types';
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export function LocalFollowsWidget() {
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const { db } = useStorage();
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const { status, data, hasNextPage, isFetchingNextPage, fetchNextPage } =
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useInfiniteQuery({
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queryKey: ['local-follows-widget'],
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queryFn: async ({ pageParam = 0 }) => {
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return await db.getAllEventsByAuthors(db.account.follows, 20, pageParam);
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},
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getNextPageParam: (lastPage) => lastPage.nextCursor,
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});
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const dbEvents = useMemo(
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() => (data ? data.pages.flatMap((d: { data: DBEvent[] }) => d.data) : []),
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[data]
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);
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const parentRef = useRef<HTMLDivElement>();
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const virtualizer = useVirtualizer({
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count: hasNextPage ? dbEvents.length : dbEvents.length,
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getScrollElement: () => parentRef.current,
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estimateSize: () => 650,
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overscan: 4,
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});
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const items = virtualizer.getVirtualItems();
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// render event match event kind
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const renderItem = useCallback(
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(index: string | number) => {
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const dbEvent: DBEvent = dbEvents[index];
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if (!dbEvent) return;
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const event: NDKEvent = JSON.parse(dbEvent.event as string);
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switch (event.kind) {
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case NDKKind.Text:
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return (
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<div
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key={dbEvent.id + index}
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data-index={index}
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ref={virtualizer.measureElement}
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>
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<NoteWrapper event={event} root={dbEvent.root_id} reply={dbEvent.reply_id}>
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<TextNote content={event.content} />
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</NoteWrapper>
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</div>
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);
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case NDKKind.Repost:
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return (
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<div
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key={dbEvent.id + index}
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data-index={index}
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ref={virtualizer.measureElement}
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>
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<Repost key={dbEvent.id} event={event} />
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</div>
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);
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case 1063:
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return (
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<div
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key={dbEvent.id + index}
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data-index={index}
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ref={virtualizer.measureElement}
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>
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<NoteWrapper event={event}>
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<FileNote event={event} />
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</NoteWrapper>
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</div>
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);
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case NDKKind.Article:
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return (
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<div
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key={dbEvent.id + index}
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data-index={index}
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ref={virtualizer.measureElement}
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>
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<NoteWrapper event={event}>
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<ArticleNote event={event} />
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</NoteWrapper>
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</div>
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);
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default:
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return (
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<div
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key={dbEvent.id + index}
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data-index={index}
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ref={virtualizer.measureElement}
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>
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<NoteWrapper event={event}>
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<UnknownNote event={event} />
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</NoteWrapper>
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</div>
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);
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}
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},
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[dbEvents]
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);
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return (
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<div className="relative shrink-0 grow-0 basis-[400px] bg-white/10 backdrop-blur-xl">
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<TitleBar title="👋 Network" />
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<div ref={parentRef} className="scrollbar-hide h-full overflow-y-auto pb-20">
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{status === 'loading' ? (
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<div className="px-3 py-1.5">
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<div className="rounded-xl bg-white/10 px-3 py-3 backdrop-blur-xl">
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<NoteSkeleton />
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</div>
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</div>
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) : dbEvents.length === 0 ? (
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<div className="flex h-full w-full flex-col items-center justify-center px-3">
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<div className="flex flex-col items-center gap-4">
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<img src="/ghost.png" alt="empty feeds" className="h-16 w-16" />
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<div className="text-center">
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<h3 className="text-xl font-semibold leading-tight">
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Your newsfeed is empty
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</h3>
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<p className="text-center text-white/50">
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Connect more people to explore more content
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</p>
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</div>
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</div>
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</div>
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) : (
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<div
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style={{
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position: 'relative',
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width: '100%',
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height: `${virtualizer.getTotalSize()}px`,
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}}
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>
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<div
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className="absolute left-0 top-0 w-full"
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style={{
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transform: `translateY(${items[0].start}px)`,
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}}
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>
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{items.map((item) => renderItem(item.index))}
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</div>
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</div>
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)}
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{isFetchingNextPage && (
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<div className="mb-20 px-3">
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<div className="rounded-xl bg-white/10 px-3 py-3 backdrop-blur-xl">
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<NoteSkeleton />
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</div>
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</div>
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)}
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<div className="px-3 py-1.5">
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{dbEvents.length > 0 ? (
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<button
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onClick={() => fetchNextPage()}
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disabled={!hasNextPage || isFetchingNextPage}
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className="inline-flex h-11 w-full items-center justify-between gap-2 rounded-lg bg-fuchsia-500 px-6 font-medium leading-none text-white hover:bg-fuchsia-600 focus:outline-none"
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>
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{isFetchingNextPage ? (
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<>
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<span className="w-5" />
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<span>Loading...</span>
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<LoaderIcon className="h-5 w-5 animate-spin text-white" />
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</>
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) : hasNextPage ? (
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<>
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<span className="w-5" />
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<span>Load more</span>
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<ArrowRightCircleIcon className="h-5 w-5" />
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</>
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) : (
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<>
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<span className="w-5" />
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<span>Nothing more to load</span>
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<ArrowRightCircleIcon className="h-5 w-5" />
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</>
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)}
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</button>
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) : null}
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</div>
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</div>
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</div>
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);
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}
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