154 lines
5.1 KiB
TypeScript
154 lines
5.1 KiB
TypeScript
import "./Timeline.css";
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import { FormattedMessage } from "react-intl";
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import { useCallback, useMemo } from "react";
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import { useInView } from "react-intersection-observer";
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import { TaggedRawEvent, EventKind, u256 } from "@snort/nostr";
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import Icon from "Icons/Icon";
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import { dedupeByPubkey, findTag, tagFilterOfTextRepost } from "Util";
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import ProfileImage from "Element/ProfileImage";
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import useTimelineFeed, { TimelineFeed, TimelineSubject } from "Feed/TimelineFeed";
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import LoadMore from "Element/LoadMore";
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import Zap, { parseZap } from "Element/Zap";
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import Note from "Element/Note";
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import NoteReaction from "Element/NoteReaction";
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import useModeration from "Hooks/useModeration";
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import ProfilePreview from "Element/ProfilePreview";
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import Skeleton from "Element/Skeleton";
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export interface TimelineProps {
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postsOnly: boolean;
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subject: TimelineSubject;
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method: "TIME_RANGE" | "LIMIT_UNTIL";
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ignoreModeration?: boolean;
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window?: number;
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relay?: string;
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now?: number;
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loadMore?: boolean;
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}
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/**
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* A list of notes by pubkeys
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*/
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const Timeline = (props: TimelineProps) => {
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const feedOptions = useMemo(() => {
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return {
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method: props.method,
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window: props.window,
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relay: props.relay,
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now: props.now,
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};
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}, [props]);
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const feed: TimelineFeed = useTimelineFeed(props.subject, feedOptions);
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const { muted, isMuted } = useModeration();
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const { ref, inView } = useInView();
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const filterPosts = useCallback(
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(nts: readonly TaggedRawEvent[]) => {
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return [...nts]
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.sort((a, b) => b.created_at - a.created_at)
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?.filter(a => (props.postsOnly ? !a.tags.some(b => b[0] === "e") : true))
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.filter(a => props.ignoreModeration || !isMuted(a.pubkey));
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},
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[props.postsOnly, muted, props.ignoreModeration]
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);
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const mainFeed = useMemo(() => {
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return filterPosts(feed.main ?? []);
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}, [feed, filterPosts]);
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const latestFeed = useMemo(() => {
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return filterPosts(feed.latest ?? []).filter(a => !mainFeed.some(b => b.id === a.id));
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}, [feed, filterPosts]);
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const relatedFeed = useCallback(
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(id: u256) => {
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return (feed.related ?? []).filter(a => findTag(a, "e") === id);
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},
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[feed.related]
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);
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const findRelated = useCallback(
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(id?: u256) => {
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if (!id) return undefined;
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return (feed.related ?? []).find(a => a.id === id);
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},
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[feed.related]
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);
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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 eventElement(e: TaggedRawEvent) {
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switch (e.kind) {
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case EventKind.SetMetadata: {
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return <ProfilePreview actions={<></>} pubkey={e.pubkey} className="card" />;
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}
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case EventKind.Polls:
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case EventKind.TextNote: {
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const eRef = e.tags.find(tagFilterOfTextRepost(e))?.at(1);
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if (eRef) {
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return <NoteReaction data={e} key={e.id} root={findRelated(eRef)} />;
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}
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return (
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<Note key={e.id} data={e} related={relatedFeed(e.id)} ignoreModeration={props.ignoreModeration} depth={0} />
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);
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}
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case EventKind.ZapReceipt: {
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const zap = parseZap(e);
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return zap.event ? null : <Zap zap={zap} key={e.id} />;
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}
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case EventKind.Reaction:
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case EventKind.Repost: {
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const eRef = findTag(e, "e");
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return <NoteReaction data={e} key={e.id} root={findRelated(eRef)} />;
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}
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}
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}
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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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<div className="main-content">
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{latestFeed.length > 0 && (
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<>
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<div className="card latest-notes pointer" onClick={() => onShowLatest()} ref={ref}>
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{latestAuthors.slice(0, 3).map(p => {
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return <ProfileImage pubkey={p} showUsername={false} linkToProfile={false} />;
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})}
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<FormattedMessage
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defaultMessage="{n} new {n, plural, =1 {note} other {notes}}"
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values={{ n: latestFeed.length }}
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/>
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<Icon name="arrowUp" />
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</div>
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{!inView && (
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<div className="card latest-notes latest-notes-fixed pointer fade-in" onClick={() => onShowLatest(true)}>
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{latestAuthors.slice(0, 3).map(p => {
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return <ProfileImage pubkey={p} showUsername={false} linkToProfile={false} />;
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})}
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<FormattedMessage
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defaultMessage="{n} new {n, plural, =1 {note} other {notes}}"
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values={{ n: latestFeed.length }}
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/>
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<Icon name="arrowUp" />
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</div>
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)}
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</>
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)}
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{mainFeed.map(eventElement)}
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{(props.loadMore === undefined || props.loadMore === true) && (
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<LoadMore onLoadMore={feed.loadMore} shouldLoadMore={!feed.loading}>
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<Skeleton width="100%" height="120px" margin="0 0 16px 0" />
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<Skeleton width="100%" height="120px" margin="0 0 16px 0" />
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<Skeleton width="100%" height="120px" margin="0 0 16px 0" />
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</LoadMore>
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)}
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</div>
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);
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};
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export default Timeline;
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