feat(leaderboards): zap leaderboards page (top spots + top supporters)

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.

scripts/smoke-test.mjs

@@ -118,29 +118,41 @@ ws.on('message', (d) => {
 const send = (method, params = {}) => new Promise((res) => { const i = ++id; pend.set(i, res); ws.send(JSON.stringify({ id: i, method, params })); });
 await new Promise((r) => ws.on('open', r));
 await send('Runtime.enable');
+await send('Page.enable');
 const evalJS = async (expr) => (await send('Runtime.evaluate', { expression: expr, returnByValue: true, awaitPromise: true }))?.result?.result?.value;
 
-// ── wait for the app to mount ────────────────────────────────────────────────
-let mounted = false; let lastText = '';
-const deadline = Date.now() + timeoutMs;
-while (Date.now() < deadline) {
-  lastText = (await evalJS('document.body ? document.body.innerText : ""')) || '';
-  const kids = await evalJS('document.getElementById("root")?.children.length ?? 0');
-  if (kids > 0) { mounted = true; break; }
-  if (/failed to start/i.test(lastText)) break;
-  await sleep(400);
+// ── boot each route (lazy route chunks can fail independently) ──────────────
+const ROUTES = ['/', '/leaderboards', '/bounties'];
+const problems = [];
+let lastText = '';
+
+for (const route of ROUTES) {
+  const url = appUrl.replace(/\/$/, '') + route;
+  await send('Page.navigate', { url });
+
+  let mounted = false;
+  const deadline = Date.now() + timeoutMs;
+  while (Date.now() < deadline) {
+    lastText = (await evalJS('document.body ? document.body.innerText : ""')) || '';
+    const kids = await evalJS('document.getElementById("root")?.children.length ?? 0');
+    if (kids > 0) { mounted = true; break; }
+    if (/failed to start/i.test(lastText)) break;
+    await sleep(400);
+  }
+
+  const crashed = /failed to start/i.test(lastText);
+  if (!mounted) problems.push(`${route}: #root never mounted`);
+  if (crashed) problems.push(`${route}: crash screen`);
 }
 
 ws.close();
-const crashed = /failed to start/i.test(lastText);
-const ok = mounted && !crashed && exceptions.length === 0;
+const ok = problems.length === 0 && exceptions.length === 0;
 
 if (ok) {
-  log('PASS — production bundle booted and mounted.');
+  log(`PASS — production bundle booted and mounted (${ROUTES.join(', ')}).`);
 } else {
   console.error('[smoke-test] FAIL — the built bundle did not boot:');
-  if (!mounted) console.error('  • #root never mounted');
-  if (crashed) console.error('  • app rendered its "failed to start" crash screen');
+  for (const p of problems) console.error('  • ' + p);
   for (const e of exceptions.slice(0, 4)) console.error('  • ' + e.split('\n')[0]);
   console.error('  body: ' + JSON.stringify(lastText.slice(0, 160)));
 }

src/AppRouter.tsx

@@ -49,6 +49,7 @@ const DirectMessagesPage = lazy(() => import("./pages/DirectMessagesPage"));
 const ConversationPage = lazy(() => import("./pages/ConversationPage"));
 const ContactsPage = lazy(() => import("./pages/ContactsPage"));
 const BountyLeaderboardPage = lazy(() => import("./pages/BountyLeaderboardPage"));
+const ZapLeaderboardPage = lazy(() => import("./pages/ZapLeaderboardPage"));
 const SignersPage = lazy(() => import("./pages/SignersPage"));
 const StashPage = lazy(() => import("./pages/StashPage"));
 const NIP19Page = lazy(() => import("./pages/NIP19Page").then(m => ({ default: m.NIP19Page })));
@@ -140,6 +141,8 @@ export function AppRouter() {
           <Route path="/contacts" element={<ContactsPage />} />
           {/* Bounty System */}
           <Route path="/bounties" element={<BountyLeaderboardPage />} />
+          {/* Zap Leaderboards */}
+          <Route path="/leaderboards" element={<ZapLeaderboardPage />} />
           {/* Security & Signers */}
           <Route path="/signers" element={<SignersPage />} />
           {/* Stash - Private Inventory */}

src/components/Layout.tsx

@@ -231,6 +231,12 @@ function MobileHeaderUserMenu({
             <span className="text-orange-400">Wallet</span>
           </Link>
         </DropdownMenuItem>
+        <DropdownMenuItem asChild>
+          <Link to="/leaderboards" className="flex items-center gap-2 cursor-pointer">
+            <BarChart3 className="h-4 w-4 text-[#ccff00]" />
+            <span className="text-[#ccff00]">Leaderboards</span>
+          </Link>
+        </DropdownMenuItem>
 
         {/* ── Accounts: switch between logged-in npubs + add another ── */}
         <DropdownMenuSeparator />

src/hooks/useZapLeaderboard.ts

@@ -0,0 +1,89 @@
+import { useQuery } from '@tanstack/react-query';
+import { useNostr } from '@nostrify/react';
+import type { NostrEvent } from '@nostrify/nostrify';
+import { zapReceiptSats } from '@/hooks/useZapTotals';
+
+export interface ZapLeaderboardTarget {
+  /** `a` coordinate (`kind:pubkey:identifier`) or event id. */
+  key: string;
+  sats: number;
+  count: number;
+}
+
+export interface ZapLeaderboardSender {
+  pubkey: string;
+  sats: number;
+  count: number;
+}
+
+export interface ZapLeaderboard {
+  targets: ZapLeaderboardTarget[];
+  senders: ZapLeaderboardSender[];
+}
+
+/**
+ * Aggregate zap receipts into leaderboards.
+ *
+ * One query for kind-9735 receipts (bounded by `since` for time-ranged boards),
+ * then two tallies:
+ *  - **targets** — total sats per zapped item (spot/shop/event coordinate).
+ *  - **senders** — total sats sent per zapper (taken from the embedded zap
+ *    request, since a receipt's own pubkey is the LNURL server, not the sender).
+ */
+export function useZapLeaderboard(since?: number) {
+  const { nostr } = useNostr();
+
+  return useQuery<ZapLeaderboard>({
+    queryKey: ['zap-leaderboard', since ?? 'all'],
+    staleTime: 5 * 60 * 1000,
+    queryFn: async (c): Promise<ZapLeaderboard> => {
+      const signal = AbortSignal.any([c.signal, AbortSignal.timeout(12000)]);
+
+      const receipts: NostrEvent[] = await nostr.query(
+        [{ kinds: [9735], ...(since ? { since } : {}), limit: 1000 }],
+        { signal },
+      );
+
+      const targets = new Map<string, { sats: number; count: number }>();
+      const senders = new Map<string, { sats: number; count: number }>();
+
+      for (const zap of receipts) {
+        const sats = zapReceiptSats(zap);
+
+        const aTag = zap.tags.find(([t]) => t === 'a')?.[1];
+        const eTag = zap.tags.find(([t]) => t === 'e')?.[1];
+        const target = aTag ?? eTag;
+        if (target) {
+          const cur = targets.get(target) ?? { sats: 0, count: 0 };
+          cur.sats += sats;
+          cur.count += 1;
+          targets.set(target, cur);
+        }
+
+        const description = zap.tags.find(([t]) => t === 'description')?.[1];
+        if (description) {
+          try {
+            const sender = JSON.parse(description)?.pubkey as string | undefined;
+            if (sender) {
+              const cur = senders.get(sender) ?? { sats: 0, count: 0 };
+              cur.sats += sats;
+              cur.count += 1;
+              senders.set(sender, cur);
+            }
+          } catch {
+            /* malformed zap request — skip */
+          }
+        }
+      }
+
+      return {
+        targets: [...targets.entries()]
+          .map(([key, v]) => ({ key, ...v }))
+          .sort((a, b) => b.sats - a.sats),
+        senders: [...senders.entries()]
+          .map(([pubkey, v]) => ({ pubkey, ...v }))
+          .sort((a, b) => b.sats - a.sats),
+      };
+    },
+  });
+}

src/hooks/useZapTotals.ts

@@ -23,7 +23,7 @@ export function zapTargetKey(event: NostrEvent): string {
 }
 
 /** Extract the sats from one kind-9735 zap receipt. Mirrors useZaps' logic. */
-function receiptSats(zap: NostrEvent): number {
+export function zapReceiptSats(zap: NostrEvent): number {
   const amountTag = zap.tags.find(([name]) => name === 'amount')?.[1];
   if (amountTag) return Math.floor(parseInt(amountTag, 10) / 1000);
 
@@ -88,7 +88,7 @@ export function useZapTotals(events: NostrEvent[]) {
       const totals = new Map<string, ZapTotal>();
 
       for (const zap of receipts) {
-        const sats = receiptSats(zap);
+        const sats = zapReceiptSats(zap);
         // A receipt copies the tags it's paying; count each target it points at.
         for (const [, value] of zap.tags) {
           if (!wanted.has(value)) continue;

src/pages/ZapLeaderboardPage.tsx

@@ -0,0 +1,259 @@
+import { useMemo, useState } from 'react';
+import { Link } from 'react-router-dom';
+import { useSeoMeta } from '@unhead/react';
+import { nip19 } from 'nostr-tools';
+import { Layout } from '@/components/Layout';
+import { Card, CardContent } from '@/components/ui/card';
+import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
+import { Skeleton } from '@/components/ui/skeleton';
+import { Tabs, TabsList, TabsTrigger } from '@/components/ui/tabs';
+import { Badge } from '@/components/ui/badge';
+import { useZapLeaderboard } from '@/hooks/useZapLeaderboard';
+import { useSkateSpots } from '@/hooks/useSkateSpots';
+import { useAuthor } from '@/hooks/useAuthor';
+import { genUserName } from '@/lib/genUserName';
+import { SKATE_SPOT_KIND, type SkateSpot } from '@/lib/types';
+import { cn } from '@/lib/utils';
+import { Crown, Medal, MapPin, Store, Trophy, Users, Zap } from 'lucide-react';
+import type { ZapLeaderboardSender, ZapLeaderboardTarget } from '@/hooks/useZapLeaderboard';
+
+const RANGES = {
+  week: 7 * 24 * 60 * 60,
+  month: 30 * 24 * 60 * 60,
+  all: null,
+} as const;
+
+type RangeKey = keyof typeof RANGES;
+
+function RankBadge({ rank }: { rank: number }) {
+  if (rank === 1) return <Crown className="h-5 w-5 text-yellow-400" />;
+  if (rank === 2) return <Medal className="h-5 w-5 text-gray-300" />;
+  if (rank === 3) return <Medal className="h-5 w-5 text-amber-600" />;
+  return <span className="text-sm font-bold text-gray-500">#{rank}</span>;
+}
+
+function rowClasses(rank: number) {
+  return cn(
+    'flex items-center gap-3 rounded-xl border-2 bg-black/60 px-3 py-2.5 transition-colors',
+    rank === 1
+      ? 'border-yellow-500/40 hover:border-yellow-500/70'
+      : rank === 2
+        ? 'border-gray-400/30 hover:border-gray-400/60'
+        : rank === 3
+          ? 'border-amber-600/30 hover:border-amber-600/60'
+          : 'border-white/10 hover:border-[#ff0040]/50',
+  );
+}
+
+function Sats({ sats, count }: { sats: number; count: number }) {
+  return (
+    <div className="text-right">
+      <div className="flex items-center gap-1 font-bold text-[#ccff00]">
+        <Zap className="h-4 w-4" />
+        {sats.toLocaleString()}
+      </div>
+      <div className="text-[11px] text-gray-500">
+        {count} zap{count === 1 ? '' : 's'}
+      </div>
+    </div>
+  );
+}
+
+function TargetRow({
+  rank,
+  target,
+  spot,
+}: {
+  rank: number;
+  target: ZapLeaderboardTarget;
+  spot?: SkateSpot;
+}) {
+  // `a` coordinate = kind:pubkey:identifier (identifier may itself contain ':').
+  const [kindStr, pubkey, ...rest] = target.key.split(':');
+  const identifier = rest.join(':');
+  const kind = Number(kindStr);
+  const isSpotCoord = kind === SKATE_SPOT_KIND && !!pubkey && identifier !== '';
+  const isShop = spot?.types.includes('shop') ?? false;
+
+  const to = spot
+    ? isShop
+      ? `/shop/${spot.pubkey}/${spot.identifier}`
+      : `/spot/${spot.pubkey}/${spot.identifier}`
+    : isSpotCoord
+      ? `/${nip19.naddrEncode({ kind, pubkey, identifier })}`
+      : undefined;
+
+  const label = spot?.title ?? (isShop ? 'Skate shop' : 'Skate spot');
+
+  const inner = (
+    <div className={rowClasses(rank)}>
+      <div className="flex h-6 w-6 flex-shrink-0 items-center justify-center">
+        <RankBadge rank={rank} />
+      </div>
+      <div className="flex h-9 w-9 flex-shrink-0 items-center justify-center rounded-lg bg-[#ff0040]/15 text-[#ff0040]">
+        {isShop ? <Store className="h-4 w-4" /> : <MapPin className="h-4 w-4" />}
+      </div>
+      <div className="min-w-0 flex-1">
+        <p className="truncate font-bold uppercase tracking-wide text-white">{label}</p>
+        {spot?.location && (
+          <p className="truncate text-xs text-gray-500">{spot.location}</p>
+        )}
+      </div>
+      <Sats sats={target.sats} count={target.count} />
+    </div>
+  );
+
+  return to ? <Link to={to} className="block">{inner}</Link> : inner;
+}
+
+function SupporterRow({ rank, entry }: { rank: number; entry: ZapLeaderboardSender }) {
+  const author = useAuthor(entry.pubkey);
+  const metadata = author.data?.metadata;
+  const displayName = metadata?.name ?? genUserName(entry.pubkey);
+
+  return (
+    <Link to={`/${nip19.npubEncode(entry.pubkey)}`} className="block">
+      <div className={rowClasses(rank)}>
+        <div className="flex h-6 w-6 flex-shrink-0 items-center justify-center">
+          <RankBadge rank={rank} />
+        </div>
+        <Avatar className="h-9 w-9 flex-shrink-0 border border-[#ccff00]/30">
+          <AvatarImage src={metadata?.picture} alt={displayName} />
+          <AvatarFallback className="bg-black text-[#ccff00] text-xs">
+            {displayName.slice(0, 2).toUpperCase()}
+          </AvatarFallback>
+        </Avatar>
+        <div className="min-w-0 flex-1">
+          <p className="truncate font-bold text-white">{displayName}</p>
+          <p className="truncate text-xs text-gray-500">Supporter</p>
+        </div>
+        <Sats sats={entry.sats} count={entry.count} />
+      </div>
+    </Link>
+  );
+}
+
+function RowsSkeleton() {
+  return (
+    <div className="space-y-2">
+      {Array.from({ length: 5 }).map((_, i) => (
+        <Skeleton key={i} className="h-[62px] w-full rounded-xl" />
+      ))}
+    </div>
+  );
+}
+
+export default function ZapLeaderboardPage() {
+  useSeoMeta({
+    title: 'Zap Leaderboards - SkateSpots',
+    description: 'Top zapped skate spots and the community members supporting them.',
+  });
+
+  const [range, setRange] = useState<RangeKey>('month');
+
+  const since = useMemo(() => {
+    const seconds = RANGES[range];
+    return seconds ? Math.floor(Date.now() / 1000) - seconds : undefined;
+  }, [range]);
+
+  const { data, isLoading } = useZapLeaderboard(since);
+  const { data: spots } = useSkateSpots(200);
+
+  const spotByCoord = useMemo(() => {
+    const map = new Map<string, SkateSpot>();
+    for (const s of spots ?? []) {
+      map.set(`${SKATE_SPOT_KIND}:${s.pubkey}:${s.identifier}`, s);
+    }
+    return map;
+  }, [spots]);
+
+  const topTargets = useMemo(
+    () => (data?.targets ?? []).filter((t) => t.key.startsWith(`${SKATE_SPOT_KIND}:`)).slice(0, 10),
+    [data],
+  );
+  const topSenders = useMemo(() => (data?.senders ?? []).slice(0, 10), [data]);
+
+  const totalZapped = useMemo(
+    () => topSenders.reduce((sum, s) => sum + s.sats, 0),
+    [topSenders],
+  );
+
+  return (
+    <Layout>
+      <div className="container mx-auto max-w-3xl px-4 py-8">
+        {/* Header */}
+        <div className="mb-6">
+          <h1 className="flex items-center gap-2 text-2xl font-black uppercase tracking-wide text-white sm:text-3xl">
+            <Trophy className="h-7 w-7 text-[#ccff00]" />
+            Zap Leaderboards
+          </h1>
+          <p className="mt-1 text-sm text-gray-400">
+            The spots getting the most love — and the skaters giving it.
+          </p>
+        </div>
+
+        {/* Time range */}
+        <Tabs value={range} onValueChange={(v) => setRange(v as RangeKey)} className="mb-6">
+          <TabsList className="grid w-full grid-cols-3">
+            <TabsTrigger value="week">This week</TabsTrigger>
+            <TabsTrigger value="month">This month</TabsTrigger>
+            <TabsTrigger value="all">All time</TabsTrigger>
+          </TabsList>
+        </Tabs>
+
+        {/* Top spots */}
+        <Card className="mb-6 border-2 border-[#ff0040]/25 bg-black/80">
+          <CardContent className="p-4">
+            <h2 className="mb-3 flex items-center gap-2 text-sm font-black uppercase tracking-[0.15em] text-[#ff0040]">
+              <MapPin className="h-4 w-4" />
+              Top zapped spots
+            </h2>
+            {isLoading ? (
+              <RowsSkeleton />
+            ) : topTargets.length === 0 ? (
+              <p className="py-8 text-center text-sm text-gray-500">
+                No zaps yet in this period. Be the first — hit the ⚡ on a spot you love.
+              </p>
+            ) : (
+              <div className="space-y-2">
+                {topTargets.map((t, i) => (
+                  <TargetRow key={t.key} rank={i + 1} target={t} spot={spotByCoord.get(t.key)} />
+                ))}
+              </div>
+            )}
+          </CardContent>
+        </Card>
+
+        {/* Top supporters */}
+        <Card className="border-2 border-[#ccff00]/25 bg-black/80">
+          <CardContent className="p-4">
+            <h2 className="mb-3 flex items-center gap-2 text-sm font-black uppercase tracking-[0.15em] text-[#ccff00]">
+              <Users className="h-4 w-4" />
+              Top supporters
+            </h2>
+            {isLoading ? (
+              <RowsSkeleton />
+            ) : topSenders.length === 0 ? (
+              <p className="py-8 text-center text-sm text-gray-500">
+                No zaps sent yet in this period.
+              </p>
+            ) : (
+              <>
+                <div className="space-y-2">
+                  {topSenders.map((s, i) => (
+                    <SupporterRow key={s.pubkey} rank={i + 1} entry={s} />
+                  ))}
+                </div>
+                {totalZapped > 0 && (
+                  <Badge variant="secondary" className="mt-4 font-mono text-[11px]">
+                    ⚡ {totalZapped.toLocaleString()} sats from the top 10
+                  </Badge>
+                )}
+              </>
+            )}
+          </CardContent>
+        </Card>
+      </div>
+    </Layout>
+  );
+}