6ae4e674dc
New /leaderboards route (linked from the More menu): aggregates kind-9735 receipts into top-zapped spots and top supporters, with week/month/all-time tabs. Reuses the batched zap helpers. Also hardens the deploy smoke test to boot lazy routes (/, /leaderboards, /bounties), since route chunks can fail independently.
105 lines
3.5 KiB
TypeScript
105 lines
3.5 KiB
TypeScript
import { useMemo } from 'react';
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import { useQuery } from '@tanstack/react-query';
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import { useNostr } from '@nostrify/react';
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import type { NostrEvent } from '@nostrify/nostrify';
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import { getSatoshisFromBolt11 } from '@/lib/bolt11';
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export interface ZapTotal {
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count: number;
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totalSats: number;
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}
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/**
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* Stable lookup key for the zap receipts that belong to an event.
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* Addressable events (30000–39999) are zapped via their `a` coordinate;
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* everything else via its event id.
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*/
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export function zapTargetKey(event: NostrEvent): string {
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if (event.kind >= 30000 && event.kind < 40000) {
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const d = event.tags.find(([t]) => t === 'd')?.[1] ?? '';
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return `${event.kind}:${event.pubkey}:${d}`;
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}
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return event.id;
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}
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/** Extract the sats from one kind-9735 zap receipt. Mirrors useZaps' logic. */
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export function zapReceiptSats(zap: NostrEvent): number {
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const amountTag = zap.tags.find(([name]) => name === 'amount')?.[1];
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if (amountTag) return Math.floor(parseInt(amountTag, 10) / 1000);
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const bolt11 = zap.tags.find(([name]) => name === 'bolt11')?.[1];
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if (bolt11) {
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try {
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return getSatoshisFromBolt11(bolt11);
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} catch {
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/* fall through */
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}
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}
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const description = zap.tags.find(([name]) => name === 'description')?.[1];
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if (description) {
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try {
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const request = JSON.parse(description);
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const reqAmount = request.tags?.find(([name]: string[]) => name === 'amount')?.[1];
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if (reqAmount) return Math.floor(parseInt(reqAmount, 10) / 1000);
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} catch {
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/* fall through */
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}
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}
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return 0;
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}
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/**
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* Batched zap totals for many events in ONE query per relay.
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*
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* Individual `<ZapButton>`s each issue their own receipt query; that's fine for
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* a single detail page but ruinous for a list of 100 cards. This fetches all
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* receipts for a set of targets at once and returns a `Map` keyed by
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* {@link zapTargetKey} — use it for sorting/filtering lists by zaps.
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*/
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export function useZapTotals(events: NostrEvent[]) {
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const { nostr } = useNostr();
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const { ids, coords } = useMemo(() => {
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const ids: string[] = [];
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const coords: string[] = [];
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for (const ev of events) {
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if (ev.kind >= 30000 && ev.kind < 40000) coords.push(zapTargetKey(ev));
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else ids.push(ev.id);
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}
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return { ids: [...new Set(ids)], coords: [...new Set(coords)] };
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}, [events]);
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return useQuery<Map<string, ZapTotal>>({
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queryKey: ['zap-totals', ids.join(','), coords.join(',')],
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enabled: ids.length > 0 || coords.length > 0,
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staleTime: 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 filters: { kinds: number[]; '#e'?: string[]; '#a'?: string[] }[] = [];
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if (ids.length > 0) filters.push({ kinds: [9735], '#e': ids });
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if (coords.length > 0) filters.push({ kinds: [9735], '#a': coords });
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const receipts = await nostr.query(filters, { signal });
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const wanted = new Set<string>([...ids, ...coords]);
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const totals = new Map<string, ZapTotal>();
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for (const zap of receipts) {
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const sats = zapReceiptSats(zap);
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// A receipt copies the tags it's paying; count each target it points at.
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for (const [, value] of zap.tags) {
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if (!wanted.has(value)) continue;
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const cur = totals.get(value) ?? { count: 0, totalSats: 0 };
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cur.count += 1;
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cur.totalSats += sats;
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totals.set(value, cur);
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}
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}
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return totals;
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},
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});
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}
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