Files
zap.stream/src/hooks/live-chat.tsx
2023-11-14 14:04:07 +00:00

28 lines
1.1 KiB
TypeScript

import { NostrLink, RequestBuilder, NoteCollection } from "@snort/system";
import { useReactions, useRequestBuilder } from "@snort/system-react";
import { unixNow } from "@snort/shared";
import { useMemo } from "react";
import { LIVE_STREAM_CHAT, WEEK } from "const";
export function useLiveChatFeed(link: NostrLink, eZaps?: Array<string>) {
const since = useMemo(() => unixNow() - WEEK, [link.id]);
const sub = useMemo(() => {
const rb = new RequestBuilder(`live:${link.id}:${link.author}`);
rb.withOptions({
leaveOpen: true,
});
const aTag = `${link.kind}:${link.author}:${link.id}`;
rb.withFilter().kinds([LIVE_STREAM_CHAT]).tag("a", [aTag]).limit(100);
return rb;
}, [link.id, since, eZaps]);
const feed = useRequestBuilder(NoteCollection, sub);
const messages = useMemo(() => {
return (feed.data ?? []).filter(ev => ev.kind === LIVE_STREAM_CHAT);
}, [feed.data]);
const reactions = useReactions(`live:${link.id}:${link.author}:reactions`, messages.map(a => NostrLink.fromEvent(a)).concat(link), undefined, true);
return { messages, reactions: reactions.data ?? [] };
}