33 lines
1.2 KiB
TypeScript
33 lines
1.2 KiB
TypeScript
import { EventKind, HexKey, RequestBuilder, TaggedNostrEvent } from "@snort/system";
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import { useRequestBuilder } from "@snort/system-react";
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import { useMemo } from "react";
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import useLogin from "@/Hooks/useLogin";
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export default function useFollowsFeed(pubkey?: HexKey) {
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const { publicKey, follows } = useLogin(s => ({ publicKey: s.publicKey, follows: s.state.follows }));
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const isMe = publicKey === pubkey;
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const sub = useMemo(() => {
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if (isMe || !pubkey) return null;
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const b = new RequestBuilder(`follows:${pubkey.slice(0, 12)}`);
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b.withFilter().kinds([EventKind.ContactList]).authors([pubkey]);
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return b;
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}, [isMe, pubkey]);
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const contactFeed = useRequestBuilder(sub);
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return useMemo(() => {
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if (isMe) {
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return follows;
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}
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return getFollowing(contactFeed ?? [], pubkey);
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}, [isMe, contactFeed, follows, pubkey]);
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}
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export function getFollowing(notes: readonly TaggedNostrEvent[], pubkey?: HexKey) {
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const contactLists = notes.filter(a => a.kind === EventKind.ContactList && a.pubkey === pubkey);
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const pTags = contactLists?.map(a => a.tags.filter(b => b[0] === "p").map(c => c[1]));
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return [...new Set(pTags?.flat())];
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}
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