Zap a whole crew: split a zap across confirmed members

- useCrewZap hook: splits a total evenly across recipients, resolves each
  member's Lightning address (batched kind-0 query), fetches an invoice per
  recipient and auto-pays via NWC → WebLN; per-recipient status
  (resolving/paying/success/skipped/failed) with manual-invoice fallback
- splitAmount util distributes remainder fairly (no lost sats)
- ZapCrewDialog: amount presets + custom, per-head preview, live progress rows,
  copy-invoice fallback when no wallet; excludes the current user
- CrewDetailPage: "Zap the Crew" button (recipients = founder + confirmed
  members via useCollectiveMembers); shown only when >1 recipient

Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>

src/components/ZapCrewDialog.tsx

@@ -0,0 +1,218 @@
+import { useState, useMemo } from 'react';
+import { Dialog, DialogContent, DialogDescription, DialogHeader, DialogTitle, DialogTrigger } from '@/components/ui/dialog';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Textarea } from '@/components/ui/textarea';
+import { Label } from '@/components/ui/label';
+import { ToggleGroup, ToggleGroupItem } from '@/components/ui/toggle-group';
+import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
+import { useCurrentUser } from '@/hooks/useCurrentUser';
+import { useAuthor } from '@/hooks/useAuthor';
+import { useWallet } from '@/hooks/useWallet';
+import { useCrewZap, splitAmount, type CrewZapResult } from '@/hooks/useCrewZap';
+import { useToast } from '@/hooks/useToast';
+import { genUserName } from '@/lib/genUserName';
+import { Zap, Check, Copy, Loader2, X, Users, AlertCircle } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+const PRESETS = [210, 500, 1000, 2100, 5000];
+
+interface ZapCrewDialogProps {
+  crewName: string;
+  /** Recipient pubkeys — typically founder + confirmed members. */
+  recipients: string[];
+  children: React.ReactNode;
+}
+
+function RecipientRow({ result }: { result: CrewZapResult }) {
+  const author = useAuthor(result.pubkey);
+  const meta = author.data?.metadata;
+  const name = meta?.name ?? genUserName(result.pubkey);
+  const { toast } = useToast();
+
+  const copyInvoice = async () => {
+    if (!result.invoice) return;
+    await navigator.clipboard.writeText(result.invoice);
+    toast({ title: 'Invoice copied', description: 'Paste it into any Lightning wallet' });
+  };
+
+  return (
+    <div className="flex items-center gap-2 rounded-lg border border-gray-700 bg-black/40 p-2">
+      <Avatar className="h-7 w-7">
+        <AvatarImage src={meta?.picture} alt={name} />
+        <AvatarFallback className="text-[10px]">{name.slice(0, 2).toUpperCase()}</AvatarFallback>
+      </Avatar>
+      <div className="min-w-0 flex-1">
+        <p className="truncate text-xs font-bold text-white">{name}</p>
+        <p className="text-[10px] text-gray-500">{result.amount.toLocaleString()} sats</p>
+      </div>
+      <StatusPill result={result} onCopy={copyInvoice} />
+    </div>
+  );
+}
+
+function StatusPill({ result, onCopy }: { result: CrewZapResult; onCopy: () => void }) {
+  switch (result.status) {
+    case 'success':
+      return <span className="flex items-center gap-1 text-[10px] font-bold text-green-400"><Check className="h-3 w-3" /> Sent</span>;
+    case 'resolving':
+    case 'paying':
+      return <span className="flex items-center gap-1 text-[10px] text-teal-400"><Loader2 className="h-3 w-3 animate-spin" /> {result.status === 'paying' ? 'Paying' : 'Resolving'}</span>;
+    case 'skipped':
+      return <span className="text-[10px] text-gray-500" title={result.error}>Skipped</span>;
+    case 'failed':
+      return result.invoice ? (
+        <button type="button" onClick={onCopy} className="flex items-center gap-1 text-[10px] font-bold text-amber-400 hover:text-amber-300">
+          <Copy className="h-3 w-3" /> Copy invoice
+        </button>
+      ) : (
+        <span className="flex items-center gap-1 text-[10px] text-red-400" title={result.error}><AlertCircle className="h-3 w-3" /> Failed</span>
+      );
+    default:
+      return <span className="text-[10px] text-gray-600">Waiting</span>;
+  }
+}
+
+export function ZapCrewDialog({ crewName, recipients, children }: ZapCrewDialogProps) {
+  const [open, setOpen] = useState(false);
+  const { user } = useCurrentUser();
+  const { preferredMethod } = useWallet();
+  const { zapCrew, results, isRunning, reset } = useCrewZap();
+  const [amount, setAmount] = useState<number | string>(1000);
+  const [comment, setComment] = useState('');
+
+  // Don't include the current user as a recipient (no zapping yourself).
+  const payable = useMemo(
+    () => recipients.filter((pk) => pk !== user?.pubkey),
+    [recipients, user?.pubkey]
+  );
+
+  const numAmount = typeof amount === 'string' ? parseInt(amount, 10) || 0 : amount;
+  const perHead = payable.length > 0 ? splitAmount(numAmount, payable.length) : [];
+  const started = results.length > 0;
+  const doneCount = results.filter((r) => r.status === 'success').length;
+  const allDone = started && !isRunning;
+
+  const handleZap = () => {
+    if (numAmount <= 0 || payable.length === 0) return;
+    zapCrew(payable, numAmount, comment || `Zapped the ${crewName} crew! 🤘`);
+  };
+
+  const handleOpenChange = (o: boolean) => {
+    setOpen(o);
+    if (!o) {
+      reset();
+      setAmount(1000);
+      setComment('');
+    }
+  };
+
+  if (!user) return <>{children}</>;
+
+  return (
+    <Dialog open={open} onOpenChange={handleOpenChange}>
+      <DialogTrigger asChild>
+        <div className="cursor-pointer">{children}</div>
+      </DialogTrigger>
+      <DialogContent className="max-w-md">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <Users className="h-5 w-5 text-teal-400" /> Zap the Crew
+          </DialogTitle>
+          <DialogDescription>
+            Split a zap evenly across {payable.length} crew {payable.length === 1 ? 'member' : 'members'} with a Lightning address.
+          </DialogDescription>
+        </DialogHeader>
+
+        {payable.length === 0 ? (
+          <div className="py-6 text-center text-sm text-muted-foreground">
+            No other crew members to zap right now.
+          </div>
+        ) : !started ? (
+          <div className="space-y-4">
+            <div>
+              <Label className="text-xs uppercase tracking-wide text-muted-foreground">Total amount</Label>
+              <ToggleGroup
+                type="single"
+                value={String(amount)}
+                onValueChange={(v) => v && setAmount(parseInt(v, 10))}
+                className="grid grid-cols-5 gap-1 mt-2"
+              >
+                {PRESETS.map((p) => (
+                  <ToggleGroupItem key={p} value={String(p)} className="flex-col h-auto text-xs py-2">
+                    <Zap className="h-3.5 w-3.5 mb-1" />
+                    {p >= 1000 ? `${p / 1000}k` : p}
+                  </ToggleGroupItem>
+                ))}
+              </ToggleGroup>
+              <Input
+                type="number"
+                value={amount}
+                onChange={(e) => setAmount(e.target.value)}
+                placeholder="Custom total"
+                className="mt-2 bg-gray-800 border-gray-700"
+              />
+            </div>
+
+            {numAmount > 0 && (
+              <p className="text-xs text-muted-foreground text-center">
+                ≈ <span className="font-bold text-teal-400">{perHead[0]?.toLocaleString()}</span> sats each
+                {perHead.length > 1 && perHead[0] !== perHead[perHead.length - 1] && ' (rounded)'}
+              </p>
+            )}
+
+            <Textarea
+              value={comment}
+              onChange={(e) => setComment(e.target.value)}
+              placeholder={`Zapped the ${crewName} crew! 🤘`}
+              rows={2}
+              className="bg-gray-800 border-gray-700 resize-none text-sm"
+            />
+
+            {preferredMethod === 'manual' && (
+              <p className="flex items-start gap-1.5 rounded-lg border border-amber-500/30 bg-amber-500/10 p-2 text-[11px] text-amber-300">
+                <AlertCircle className="mt-0.5 h-3.5 w-3.5 shrink-0" />
+                No wallet connected — you'll get an invoice per member to pay manually. Connect a wallet for one-tap splitting.
+              </p>
+            )}
+
+            <Button onClick={handleZap} disabled={numAmount <= 0} className="w-full bg-teal-500 hover:bg-teal-600 font-bold">
+              <Zap className="h-4 w-4 mr-2" />
+              Zap {numAmount.toLocaleString()} sats across {payable.length}
+            </Button>
+          </div>
+        ) : (
+          <div className="space-y-3">
+            <div className="max-h-72 overflow-y-auto space-y-1.5">
+              {results.map((r) => (
+                <RecipientRow key={r.pubkey} result={r} />
+              ))}
+            </div>
+
+            {allDone && (
+              <div className="rounded-lg border border-gray-700 bg-black/40 p-3 text-center">
+                <p className="text-sm font-bold text-white">
+                  {doneCount > 0 ? `⚡ Sent to ${doneCount}/${payable.length}` : 'No auto-payments completed'}
+                </p>
+                <p className="text-xs text-muted-foreground mt-0.5">
+                  {results.some((r) => r.status === 'failed' && r.invoice)
+                    ? 'Copy any pending invoices to finish paying manually.'
+                    : 'Thanks for supporting the crew!'}
+                </p>
+                <Button variant="outline" size="sm" onClick={() => handleOpenChange(false)} className="mt-3 border-gray-700">
+                  <X className="h-3.5 w-3.5 mr-1" /> Close
+                </Button>
+              </div>
+            )}
+
+            {isRunning && (
+              <p className="flex items-center justify-center gap-1.5 text-xs text-teal-400">
+                <Loader2 className="h-3.5 w-3.5 animate-spin" /> Paying the crew…
+              </p>
+            )}
+          </div>
+        )}
+      </DialogContent>
+    </Dialog>
+  );
+}

src/hooks/useCrewZap.ts

@@ -0,0 +1,162 @@
+import { useState, useCallback } from 'react';
+import { useNostr } from '@nostrify/react';
+import { useNWC } from '@/hooks/useNWCContext';
+import { useWallet } from '@/hooks/useWallet';
+import { getInvoiceFromLightningAddress } from '@/lib/lightningAddress';
+import type { NostrMetadata } from '@nostrify/nostrify';
+
+export type CrewZapStatus = 'pending' | 'resolving' | 'paying' | 'success' | 'skipped' | 'failed';
+
+export interface CrewZapResult {
+  pubkey: string;
+  amount: number;
+  status: CrewZapStatus;
+  /** Lightning address used (if resolved). */
+  address?: string;
+  /** Invoice to pay manually if auto-pay unavailable. */
+  invoice?: string;
+  error?: string;
+}
+
+/** Split `total` sats as evenly as possible across `count` recipients. */
+export function splitAmount(total: number, count: number): number[] {
+  if (count <= 0) return [];
+  const base = Math.floor(total / count);
+  let remainder = total - base * count;
+  return Array.from({ length: count }, () => {
+    const extra = remainder > 0 ? 1 : 0;
+    if (remainder > 0) remainder--;
+    return base + extra;
+  });
+}
+
+/**
+ * Zap a whole crew: split an amount across the given recipient pubkeys and pay
+ * each recipient's Lightning address. Uses the connected wallet (NWC → WebLN).
+ * Recipients without a Lightning address are skipped. Recipients that can't be
+ * auto-paid surface a manual invoice.
+ */
+export function useCrewZap() {
+  const { nostr } = useNostr();
+  const { sendPayment, getActiveConnection } = useNWC();
+  const { webln } = useWallet();
+
+  const [results, setResults] = useState<CrewZapResult[]>([]);
+  const [isRunning, setIsRunning] = useState(false);
+
+  const reset = useCallback(() => setResults([]), []);
+
+  const zapCrew = useCallback(
+    async (recipients: string[], totalAmount: number, comment: string) => {
+      if (recipients.length === 0 || totalAmount <= 0) return;
+
+      setIsRunning(true);
+      const shares = splitAmount(totalAmount, recipients.length);
+
+      // Seed initial state
+      const initial: CrewZapResult[] = recipients.map((pubkey, i) => ({
+        pubkey,
+        amount: shares[i],
+        status: 'pending',
+      }));
+      setResults(initial);
+
+      const update = (pubkey: string, patch: Partial<CrewZapResult>) =>
+        setResults((prev) => prev.map((r) => (r.pubkey === pubkey ? { ...r, ...patch } : r)));
+
+      // Fetch metadata (kind 0) for all recipients in one query
+      let metaByPubkey = new Map<string, NostrMetadata>();
+      try {
+        const signal = AbortSignal.timeout(6000);
+        const events = await nostr.query([{ kinds: [0], authors: recipients }], { signal });
+        // Latest kind-0 per author
+        const latest = new Map<string, { created_at: number; content: string }>();
+        for (const ev of events) {
+          const existing = latest.get(ev.pubkey);
+          if (!existing || ev.created_at > existing.created_at) {
+            latest.set(ev.pubkey, { created_at: ev.created_at, content: ev.content });
+          }
+        }
+        metaByPubkey = new Map(
+          [...latest.entries()].map(([pk, { content }]) => {
+            try {
+              return [pk, JSON.parse(content) as NostrMetadata];
+            } catch {
+              return [pk, {} as NostrMetadata];
+            }
+          })
+        );
+      } catch {
+        // Continue — recipients without resolvable metadata will be skipped
+      }
+
+      const activeNWC = getActiveConnection();
+
+      // Pay each recipient sequentially (keeps NWC/WebLN happy, clear progress)
+      for (let i = 0; i < recipients.length; i++) {
+        const pubkey = recipients[i];
+        const amount = shares[i];
+        if (amount <= 0) {
+          update(pubkey, { status: 'skipped', error: 'Share rounds to 0 sats' });
+          continue;
+        }
+
+        const meta = metaByPubkey.get(pubkey);
+        const address = meta?.lud16;
+        if (!address) {
+          update(pubkey, { status: 'skipped', error: 'No Lightning address' });
+          continue;
+        }
+
+        update(pubkey, { status: 'resolving', address });
+
+        let invoice: string;
+        try {
+          invoice = await getInvoiceFromLightningAddress({
+            lightningAddress: address,
+            amountSats: amount,
+            comment,
+          });
+        } catch (err) {
+          update(pubkey, { status: 'failed', error: err instanceof Error ? err.message : 'Invoice failed' });
+          continue;
+        }
+
+        // Try to auto-pay
+        update(pubkey, { status: 'paying', invoice });
+        let paid = false;
+
+        if (activeNWC && activeNWC.connectionString && activeNWC.isConnected) {
+          try {
+            await sendPayment(activeNWC, invoice);
+            paid = true;
+          } catch { /* fall through to WebLN / manual */ }
+        }
+
+        if (!paid && webln) {
+          try {
+            let provider = webln;
+            if (webln.enable && typeof webln.enable === 'function') {
+              const enabled = (await webln.enable()) as typeof webln | undefined;
+              if (enabled) provider = enabled;
+            }
+            await provider.sendPayment(invoice);
+            paid = true;
+          } catch { /* fall through to manual */ }
+        }
+
+        if (paid) {
+          update(pubkey, { status: 'success' });
+        } else {
+          // Leave invoice attached for manual payment
+          update(pubkey, { status: 'failed', error: 'Auto-pay unavailable — pay manually', invoice });
+        }
+      }
+
+      setIsRunning(false);
+    },
+    [nostr, sendPayment, getActiveConnection, webln]
+  );
+
+  return { zapCrew, results, isRunning, reset };
+}

src/pages/CrewDetailPage.tsx

@@ -8,10 +8,12 @@ import { Badge } from '@/components/ui/badge';
 import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
 import { Skeleton } from '@/components/ui/skeleton';
 import { ZapButton } from '@/components/ZapButton';
+import { ZapCrewDialog } from '@/components/ZapCrewDialog';
 import { ClinkPayButton } from '@/components/ClinkPayButton';
 import { CollectiveMembers } from '@/components/CollectiveMembers';
 import { ConfirmMembershipCard } from '@/components/ConfirmMembershipCard';
 import { LinkedLabCard } from '@/components/CrossLinkCards';
+import { useCollectiveMembers } from '@/hooks/useCollectiveMembers';
 import { NoteContent } from '@/components/NoteContent';
 import { useCrew } from '@/hooks/useCrews';
 import { useCrewFeed } from '@/hooks/useCrewFeed';
@@ -21,7 +23,7 @@ import { genUserName } from '@/lib/genUserName';
 import { SKATE_CREW_KIND, SKATE_SPOT_KIND, CREW_VIBE_LABELS } from '@/lib/types';
 import { sanitizeUrl, urlDomain } from '@/lib/sanitizeUrl';
 import NotFound from './NotFound';
-import { Users, MapPin, ArrowLeft, Calendar, Globe, Instagram, Edit, MessageSquare } from 'lucide-react';
+import { Users, MapPin, ArrowLeft, Calendar, Globe, Instagram, Edit, MessageSquare, Zap } from 'lucide-react';
 import type { NostrEvent } from '@nostrify/nostrify';
 
 function FeedItem({ event }: { event: NostrEvent }) {
@@ -68,6 +70,23 @@ export default function CrewDetailPage() {
   const feedAuthors = crew ? [crew.pubkey, ...crew.members] : [];
   const { data: feed, isLoading: feedLoading } = useCrewFeed(feedAuthors);
 
+  // Confirmed members (for "Zap the Crew" — only pay people who vouched in)
+  const { data: memberStatuses } = useCollectiveMembers({
+    kind: SKATE_CREW_KIND,
+    founderPubkey: crew?.pubkey ?? '',
+    identifier: crew?.identifier ?? '',
+    claimedMembers: crew?.members ?? [],
+    enabled: !!crew && (crew.members.length ?? 0) > 0,
+  });
+
+  // Recipients: founder + confirmed members (dedup, founder always included)
+  const crewZapRecipients = crew
+    ? Array.from(new Set([
+        crew.pubkey,
+        ...(memberStatuses ?? []).filter((m) => m.status === 'confirmed').map((m) => m.pubkey),
+      ]))
+    : [];
+
   if (isLoading) {
     return (
       <Layout>
@@ -257,6 +276,16 @@ export default function CrewDetailPage() {
                 })}
 
                 <div className="pt-3 border-t border-gray-700 space-y-2">
+                  {/* Zap the whole crew — split across founder + confirmed members */}
+                  {crewZapRecipients.length > 1 && (
+                    <ZapCrewDialog crewName={crew.name} recipients={crewZapRecipients}>
+                      <Button className="w-full justify-center gap-2 bg-teal-500 hover:bg-teal-600 font-bold">
+                        <Users className="h-4 w-4" />
+                        <Zap className="h-4 w-4" />
+                        Zap the Crew
+                      </Button>
+                    </ZapCrewDialog>
+                  )}
                   <ZapButton target={crew.event} className="w-full justify-center" />
                   {crew.noffer && (
                     <ClinkPayButton noffer={crew.noffer} recipientName={crew.name} className="w-full justify-center" />