116 lines
3.7 KiB
TypeScript
116 lines
3.7 KiB
TypeScript
import "./Timeline.css";
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import { EventKind, NostrEvent, TaggedNostrEvent } from "@snort/system";
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import { ReactNode, useCallback, useMemo, useState } from "react";
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import { Link } from "react-router-dom";
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import { DisplayAs, DisplayAsSelector } from "@/Components/Feed/DisplayAsSelector";
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import { TimelineRenderer } from "@/Components/Feed/TimelineRenderer";
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import useTimelineFeed, { TimelineFeedOptions, TimelineSubject } from "@/Feed/TimelineFeed";
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import useFollowsControls from "@/Hooks/useFollowControls";
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import useHistoryState from "@/Hooks/useHistoryState";
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import useLogin from "@/Hooks/useLogin";
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import { dedupeByPubkey } from "@/Utils";
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export interface TimelineFollowsProps {
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postsOnly: boolean;
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liveStreams?: boolean;
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noteFilter?: (ev: NostrEvent) => boolean;
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noteRenderer?: (ev: NostrEvent) => ReactNode;
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noteOnClick?: (ev: NostrEvent) => void;
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displayAs?: DisplayAs;
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showDisplayAsSelector?: boolean;
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}
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/**
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* A list of notes by "subject"
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*/
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const TimelineFollows = (props: TimelineFollowsProps) => {
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const login = useLogin(s => ({
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publicKey: s.publicKey,
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feedDisplayAs: s.feedDisplayAs,
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tags: s.state.getList(EventKind.InterestSet),
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}));
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const displayAsInitial = props.displayAs ?? login.feedDisplayAs ?? "list";
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const [displayAs, setDisplayAs] = useState<DisplayAs>(displayAsInitial);
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const [openedAt] = useHistoryState(Math.floor(Date.now() / 1000), "openedAt");
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const { isFollowing, followList } = useFollowsControls();
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const subject = useMemo(
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() =>
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({
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type: "pubkey",
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items: followList,
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discriminator: login.publicKey?.slice(0, 12),
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extra: rb => {
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if (login.tags.length > 0) {
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rb.withFilter().kinds([EventKind.TextNote, EventKind.Repost]).tags(login.tags);
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}
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},
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}) as TimelineSubject,
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[login.publicKey, followList, login.tags],
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);
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const feed = useTimelineFeed(subject, { method: "TIME_RANGE", now: openedAt } as TimelineFeedOptions);
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// TODO allow reposts:
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const postsOnly = useCallback(
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(a: NostrEvent) => (props.postsOnly ? !a.tags.some(b => b[0] === "e" || b[0] === "a") : true),
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[props.postsOnly],
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);
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const filterPosts = useCallback(
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(nts: Array<TaggedNostrEvent>) => {
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const a = nts.filter(a => a.kind !== EventKind.LiveEvent);
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return a
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?.filter(postsOnly)
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.filter(a => props.noteFilter?.(a) ?? true)
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.filter(a => isFollowing(a.pubkey) || a.tags.filter(a => a[0] === "t").length < 5);
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},
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[postsOnly, props.noteFilter, isFollowing],
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);
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const mainFeed = useMemo(() => {
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return filterPosts(feed.main ?? []);
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}, [feed.main, filterPosts]);
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const latestFeed = useMemo(() => {
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return filterPosts(feed.latest ?? []);
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}, [feed.latest]);
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const latestAuthors = useMemo(() => {
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return dedupeByPubkey(latestFeed).map(e => e.pubkey);
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}, [latestFeed]);
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function onShowLatest(scrollToTop = false) {
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feed.showLatest();
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if (scrollToTop) {
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window.scrollTo(0, 0);
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}
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}
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return (
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<>
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<DisplayAsSelector
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show={props.showDisplayAsSelector}
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activeSelection={displayAs}
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onSelect={(displayAs: DisplayAs) => setDisplayAs(displayAs)}
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/>
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<TimelineRenderer
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frags={[{ events: mainFeed, refTime: 0 }]}
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latest={latestAuthors}
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showLatest={t => onShowLatest(t)}
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noteOnClick={props.noteOnClick}
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noteRenderer={props.noteRenderer}
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noteContext={e => {
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if (typeof e.context === "string") {
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return <Link to={`/t/${e.context}`}>{`#${e.context}`}</Link>;
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}
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}}
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displayAs={displayAs}
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loadMore={() => feed.loadMore()}
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/>
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</>
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);
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};
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export default TimelineFollows;
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