67 lines
1.9 KiB
TypeScript
67 lines
1.9 KiB
TypeScript
import {
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NostrLink,
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RequestBuilder,
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EventKind,
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FlatNoteStore,
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} from "@snort/system";
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import { useRequestBuilder } from "@snort/system-react";
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import { unixNow } from "@snort/shared";
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import { System } from "index";
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import { useMemo } from "react";
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import { LIVE_STREAM_CHAT } from "const";
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export function useLiveChatFeed(link: NostrLink, eZaps?: Array<string>) {
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const since = useMemo(() =>
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unixNow() - (60 * 60 * 24 * 7), // 7-days of zaps
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[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}:${link.id}`;
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rb.withFilter().kinds([LIVE_STREAM_CHAT]).tag("a", [aTag]).limit(100);
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rb.withFilter().kinds([EventKind.ZapReceipt]).tag("a", [aTag]).since(since);
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if (eZaps) {
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rb.withFilter().kinds([EventKind.ZapReceipt]).tag("e", eZaps);
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}
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return rb;
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}, [link.id, since, eZaps]);
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const feed = useRequestBuilder<FlatNoteStore>(System, FlatNoteStore, sub);
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const messages = useMemo(() => {
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return (feed.data ?? []).filter((ev) => ev.kind === LIVE_STREAM_CHAT);
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}, [feed.data]);
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const zaps = useMemo(() => {
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return (feed.data ?? []).filter((ev) => ev.kind === EventKind.ZapReceipt);
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}, [feed.data]);
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const etags = useMemo(() => {
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return messages.map((e) => e.id);
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}, [messages]);
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const esub = useMemo(() => {
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if (etags.length === 0) return null;
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const rb = new RequestBuilder(`reactions:${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()
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.kinds([EventKind.Reaction, EventKind.ZapReceipt])
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.tag("e", etags);
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return rb;
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}, [etags]);
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const reactionsSub = useRequestBuilder<FlatNoteStore>(
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System,
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FlatNoteStore,
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esub
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);
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const reactions = reactionsSub.data ?? [];
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return { messages, zaps, reactions };
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}
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