54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
import { useMemo } from "react";
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import { HexKey, TaggedRawEvent, Lists, EventKind } from "@snort/nostr";
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import { getNewest } from "Util";
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import { ParameterizedReplaceableNoteStore, RequestBuilder } from "System";
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import useRequestBuilder from "Hooks/useRequestBuilder";
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import useLogin from "Hooks/useLogin";
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export default function useMutedFeed(pubkey?: HexKey) {
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const { publicKey, muted } = useLogin();
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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(`muted:${pubkey.slice(0, 12)}`);
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b.withFilter().authors([pubkey]).kinds([EventKind.PubkeyLists]).tag("d", [Lists.Muted]);
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return b;
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}, [pubkey]);
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const mutedFeed = useRequestBuilder<ParameterizedReplaceableNoteStore>(ParameterizedReplaceableNoteStore, sub);
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const mutedList = useMemo(() => {
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if (pubkey && mutedFeed.data) {
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return getMuted(mutedFeed.data, pubkey);
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}
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return [];
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}, [mutedFeed, pubkey]);
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return isMe ? muted.item : mutedList;
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}
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export function getMutedKeys(rawNotes: TaggedRawEvent[]): {
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createdAt: number;
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keys: HexKey[];
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raw?: TaggedRawEvent;
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} {
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const newest = getNewest(rawNotes);
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if (newest) {
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const { created_at, tags } = newest;
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const keys = tags.filter(t => t[0] === "p").map(t => t[1]);
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return {
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raw: newest,
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keys,
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createdAt: created_at,
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};
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}
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return { createdAt: 0, keys: [] };
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}
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export function getMuted(feed: readonly TaggedRawEvent[], pubkey: HexKey): HexKey[] {
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const lists = feed.filter(a => a.kind === EventKind.PubkeyLists && a.pubkey === pubkey);
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return getMutedKeys(lists).keys;
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}
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