61 lines
2.1 KiB
TypeScript
61 lines
2.1 KiB
TypeScript
import { NostrLink, RequestBuilder, EventKind, NoteCollection } from "@snort/system";
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import { SnortContext, useRequestBuilder } from "@snort/system-react";
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import { unixNow, unwrap } from "@snort/shared";
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import { useContext, useEffect, useMemo } from "react";
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import { LIVE_STREAM_CHAT, WEEK } from "const";
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import { findTag } from "utils";
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export function useLiveChatFeed(link: NostrLink, eZaps?: Array<string>) {
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const system = useContext(SnortContext);
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const since = useMemo(() => unixNow() - WEEK, [link.id]);
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const sub = useMemo(() => {
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const rb = new RequestBuilder(`live:${link.id}:${link.author}`);
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rb.withOptions({
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leaveOpen: true,
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});
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const aTag = `${link.kind}:${link.author}:${link.id}`;
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rb.withFilter().kinds([LIVE_STREAM_CHAT]).tag("a", [aTag]).limit(100);
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rb.withFilter().kinds([EventKind.ZapReceipt]).tag("a", [aTag]).since(since);
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if (eZaps) {
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rb.withFilter().kinds([EventKind.ZapReceipt]).tag("e", eZaps);
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}
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return rb;
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}, [link.id, since, eZaps]);
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const feed = useRequestBuilder(NoteCollection, sub);
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const messages = useMemo(() => {
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return (feed.data ?? []).filter(ev => ev.kind === LIVE_STREAM_CHAT);
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}, [feed.data]);
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const zaps = useMemo(() => {
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return (feed.data ?? []).filter(ev => ev.kind === EventKind.ZapReceipt);
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}, [feed.data]);
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const etags = useMemo(() => {
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return messages.map(e => e.id);
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}, [messages]);
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const esub = useMemo(() => {
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if (etags.length === 0) return null;
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const rb = new RequestBuilder(`reactions:${link.id}:${link.author}`);
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rb.withOptions({
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leaveOpen: true,
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});
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rb.withFilter().kinds([EventKind.Reaction, EventKind.ZapReceipt]).tag("e", etags);
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return rb;
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}, [etags]);
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useEffect(() => {
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const pubkeys = [...new Set(zaps.flatMap(a => [a.pubkey, unwrap(findTag(a, "p"))]))];
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system.ProfileLoader.TrackMetadata(pubkeys);
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return () => system.ProfileLoader.UntrackMetadata(pubkeys);
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}, [zaps]);
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const reactionsSub = useRequestBuilder(NoteCollection, esub);
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const reactions = reactionsSub.data ?? [];
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return { messages, zaps, reactions };
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}
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