123 lines
4.1 KiB
TypeScript
123 lines
4.1 KiB
TypeScript
import "./Note.css";
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import { useCallback, useMemo } from "react";
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import { useNavigate } from "react-router-dom";
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import { default as NEvent } from "Nostr/Event";
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import ProfileImage from "Element/ProfileImage";
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import Text from "Element/Text";
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import { eventLink, getReactions, hexToBech32 } from "Util";
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import NoteFooter from "Element/NoteFooter";
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import NoteTime from "Element/NoteTime";
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import EventKind from "Nostr/EventKind";
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import useProfile from "Feed/ProfileFeed";
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import { TaggedRawEvent, u256 } from "Nostr";
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import { useInView } from "react-intersection-observer";
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export interface NoteProps {
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data?: TaggedRawEvent,
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isThread?: boolean,
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related: TaggedRawEvent[],
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highlight?: boolean,
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options?: {
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showHeader?: boolean,
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showTime?: boolean,
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showFooter?: boolean
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},
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["data-ev"]?: NEvent
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}
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export default function Note(props: NoteProps) {
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const navigate = useNavigate();
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const { data, isThread, related, highlight, options: opt, ["data-ev"]: parsedEvent } = props
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const ev = useMemo(() => parsedEvent ?? new NEvent(data), [data]);
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const pubKeys = useMemo(() => ev.Thread?.PubKeys || [], [ev]);
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const users = useProfile(pubKeys);
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const deletions = useMemo(() => getReactions(related, ev.Id, EventKind.Deletion), [related]);
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const { ref, inView } = useInView({ triggerOnce: true });
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const options = {
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showHeader: true,
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showTime: true,
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showFooter: true,
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...opt
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};
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const transformBody = useCallback(() => {
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let body = ev?.Content ?? "";
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if (deletions?.length > 0) {
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return (<b className="error">Deleted</b>);
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}
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return <Text content={body} tags={ev.Tags} users={users || new Map()} />;
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}, [ev]);
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function goToEvent(e: any, id: u256) {
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if (!window.location.pathname.startsWith("/e/")) {
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e.stopPropagation();
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navigate(eventLink(id));
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}
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}
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function replyTag() {
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if (ev.Thread === null) {
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return null;
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}
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const maxMentions = 2;
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let replyId = ev.Thread?.ReplyTo?.Event ?? ev.Thread?.Root?.Event;
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let mentions: string[] = [];
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for (let pk of ev.Thread?.PubKeys) {
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let u = users?.get(pk);
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if (u) {
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mentions.push(u.name ?? hexToBech32("npub", pk).substring(0, 12));
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} else {
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mentions.push(hexToBech32("npub", pk).substring(0, 12));
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}
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}
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mentions.sort((a, b) => a.startsWith("npub") ? 1 : -1);
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let othersLength = mentions.length - maxMentions
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let pubMentions = mentions.length > maxMentions ? `${mentions?.slice(0, maxMentions).join(", ")} & ${othersLength} other${othersLength > 1 ? 's' : ''}` : mentions?.join(", ");
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return (
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<div className="reply">
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{(pubMentions?.length ?? 0) > 0 ? pubMentions : replyId ? hexToBech32("note", replyId)?.substring(0, 12) : ""}
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</div>
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)
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}
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if (ev.Kind !== EventKind.TextNote) {
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return (
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<>
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<h4>Unknown event kind: {ev.Kind}</h4>
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<pre>
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{JSON.stringify(ev.ToObject(), undefined, ' ')}
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</pre>
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</>
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);
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}
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function content() {
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if (!inView) return null;
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return (
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<>
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{options.showHeader ?
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<div className="header flex">
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<ProfileImage pubkey={ev.RootPubKey} subHeader={replyTag() ?? undefined} />
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{options.showTime ?
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<div className="info">
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<NoteTime from={ev.CreatedAt * 1000} />
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</div> : null}
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</div> : null}
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<div className="body" onClick={(e) => goToEvent(e, ev.Id)}>
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{transformBody()}
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</div>
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{options.showFooter ? <NoteFooter ev={ev} related={related} /> : null}
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</>
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)
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}
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return (
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<div className={`note${highlight ? " active" : ""}${isThread ? " thread" : ""}`} ref={ref}>
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{content()}
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</div>
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)
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}
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