30ef511e78
- RelayMetadata.dmRelays; Relays UI to add/remove, publishing kind 10050 - NostrSync fetches the user's 10050 on login (alongside 10002) - DMs deliver gift wraps to recipients' + own DM relays (fallback: write relays) and read from own DM relays + NIP-65 read relays - useDmRelays() to look up others' DM relay lists Also fixes a latent data-loss bug: NostrSync's 10002 fetch replaced relayMetadata wholesale, which would wipe the new local/blocked/dm lists on login — it now merges. 'Trusted' category intentionally skipped (no distinct behaviour -> no empty UI); documented in AGENTS.md.
46 lines
1.6 KiB
TypeScript
46 lines
1.6 KiB
TypeScript
import { useQuery } from '@tanstack/react-query';
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import { useNostr } from '@nostrify/react';
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import { useAppContext } from '@/hooks/useAppContext';
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/** Parse the `relay` tags of a kind-10050 event (NIP-17) into URLs. */
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export function dmRelaysFromEvent(tags: string[][]): string[] {
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return tags
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.filter(([name]) => name === 'relay')
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.map(([, url]) => url)
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.filter((url): url is string => Boolean(url));
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}
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/** The current user's own published DM relays (kind 10050), from config. */
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export function useMyDmRelays(): string[] {
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const { config } = useAppContext();
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return config.relayMetadata.dmRelays ?? [];
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}
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/**
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* Fetch the NIP-17 DM relay lists (kind 10050) for the given pubkeys.
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* Returns a `pubkey → relayUrls` map (newest event per author wins).
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*/
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export function useDmRelays(pubkeys: string[]) {
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const { nostr } = useNostr();
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const unique = [...new Set(pubkeys.filter(Boolean))].sort();
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return useQuery<Record<string, string[]>>({
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queryKey: ['dm-relays', unique.join(',')],
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enabled: unique.length > 0,
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staleTime: 10 * 60 * 1000,
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queryFn: async (c) => {
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const signal = AbortSignal.any([c.signal, AbortSignal.timeout(8000)]);
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const events = await nostr.query(
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[{ kinds: [10050], authors: unique, limit: unique.length * 2 }],
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{ signal },
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);
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const map: Record<string, string[]> = {};
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for (const ev of [...events].sort((a, b) => b.created_at - a.created_at)) {
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if (map[ev.pubkey]) continue;
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const urls = dmRelaysFromEvent(ev.tags);
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if (urls.length > 0) map[ev.pubkey] = urls;
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}
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return map;
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},
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});
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}
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