Add profile components and hooks for NIP-05 verification and user pictures

src/components/profile/LightningBadge.tsx

@@ -0,0 +1,22 @@
+import { Badge } from '@/components/ui/badge';
+import { Zap } from 'lucide-react';
+
+interface LightningBadgeProps {
+  lud06?: string;
+  lud16?: string;
+}
+
+export function LightningBadge({ lud06, lud16 }: LightningBadgeProps) {
+  const lightningAddress = lud16 || lud06;
+
+  if (!lightningAddress) {
+    return null;
+  }
+
+  return (
+    <Badge variant="outline" className="gap-1">
+      <Zap className="h-3 w-3 text-yellow-500 fill-yellow-500" />
+      {lightningAddress}
+    </Badge>
+  );
+}

src/components/profile/NIP05Verification.tsx

@@ -0,0 +1,75 @@
+import { useQuery } from '@tanstack/react-query';
+import { Badge } from '@/components/ui/badge';
+import { CheckCircle2, XCircle, Loader2 } from 'lucide-react';
+
+interface NIP05VerificationProps {
+  nip05: string;
+  pubkey: string;
+}
+
+async function verifyNIP05(nip05: string, pubkey: string): Promise<boolean> {
+  try {
+    // Parse the NIP-05 identifier (name@domain.com)
+    const [name, domain] = nip05.split('@');
+    if (!name || !domain) {
+      return false;
+    }
+
+    // Fetch the .well-known/nostr.json file
+    const url = `https://${domain}/.well-known/nostr.json?name=${encodeURIComponent(name)}`;
+    const response = await fetch(url, {
+      signal: AbortSignal.timeout(5000),
+    });
+
+    if (!response.ok) {
+      return false;
+    }
+
+    const data = await response.json();
+
+    // Check if the pubkey matches
+    const verifiedPubkey = data.names?.[name];
+    if (!verifiedPubkey) {
+      return false;
+    }
+
+    // Compare pubkeys
+    return verifiedPubkey.toLowerCase() === pubkey.toLowerCase();
+  } catch {
+    return false;
+  }
+}
+
+export function NIP05Verification({ nip05, pubkey }: NIP05VerificationProps) {
+  const { data: isVerified, isLoading } = useQuery({
+    queryKey: ['nip05-verification', nip05, pubkey],
+    queryFn: () => verifyNIP05(nip05, pubkey),
+    staleTime: 1000 * 60 * 60, // 1 hour
+    retry: 1,
+  });
+
+  if (isLoading) {
+    return (
+      <Badge variant="outline" className="gap-1">
+        <Loader2 className="h-3 w-3 animate-spin" />
+        {nip05}
+      </Badge>
+    );
+  }
+
+  if (isVerified) {
+    return (
+      <Badge variant="outline" className="gap-1">
+        <CheckCircle2 className="h-3 w-3 text-green-500" />
+        {nip05}
+      </Badge>
+    );
+  }
+
+  return (
+    <Badge variant="outline" className="gap-1">
+      <XCircle className="h-3 w-3 text-destructive" />
+      {nip05}
+    </Badge>
+  );
+}

src/components/profile/ProfileHeader.tsx

@@ -0,0 +1,86 @@
+import type { NostrMetadata } from '@nostrify/nostrify';
+import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
+import { Card, CardContent } from '@/components/ui/card';
+import { Skeleton } from '@/components/ui/skeleton';
+import { genUserName } from '@/lib/genUserName';
+import { NIP05Verification } from '@/components/profile/NIP05Verification';
+import { LightningBadge } from '@/components/profile/LightningBadge';
+
+interface ProfileHeaderProps {
+  pubkey: string;
+  metadata?: NostrMetadata;
+  isLoading?: boolean;
+}
+
+export function ProfileHeader({ pubkey, metadata, isLoading }: ProfileHeaderProps) {
+  if (isLoading) {
+    return (
+      <Card>
+        <CardContent className="pt-6">
+          <div className="flex flex-col md:flex-row gap-6">
+            <Skeleton className="h-32 w-32 rounded-full mx-auto md:mx-0" />
+            <div className="flex-1 space-y-4">
+              <div className="space-y-2">
+                <Skeleton className="h-8 w-48" />
+                <Skeleton className="h-4 w-32" />
+              </div>
+              <Skeleton className="h-16 w-full" />
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  const displayName = metadata?.display_name || metadata?.name || genUserName(pubkey);
+  const userName = metadata?.name;
+  const about = metadata?.about;
+  const picture = metadata?.picture;
+  const nip05 = metadata?.nip05;
+  const lud06 = metadata?.lud06;
+  const lud16 = metadata?.lud16;
+
+  return (
+    <Card>
+      <CardContent className="pt-6">
+        <div className="flex flex-col md:flex-row gap-6">
+          {/* Avatar */}
+          <div className="flex-shrink-0 mx-auto md:mx-0">
+            <Avatar className="h-32 w-32">
+              <AvatarImage src={picture} alt={displayName} />
+              <AvatarFallback className="text-3xl">
+                {displayName.charAt(0).toUpperCase()}
+              </AvatarFallback>
+            </Avatar>
+          </div>
+
+          {/* Profile Info */}
+          <div className="flex-1 space-y-4">
+            {/* Name and Username */}
+            <div className="space-y-1">
+              <h1 className="text-3xl font-bold">{displayName}</h1>
+              {userName && displayName !== userName && (
+                <p className="text-muted-foreground">@{userName}</p>
+              )}
+            </div>
+
+            {/* Badges: NIP-05 and Lightning */}
+            <div className="flex flex-wrap gap-2">
+              {nip05 && (
+                <NIP05Verification nip05={nip05} pubkey={pubkey} />
+              )}
+              <LightningBadge lud06={lud06} lud16={lud16} />
+            </div>
+
+            {/* About */}
+            {about && (
+              <p className="text-muted-foreground whitespace-pre-wrap break-words">
+                {about}
+              </p>
+            )}
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/hooks/useUserPictures.ts

@@ -0,0 +1,32 @@
+import { useNostr } from '@nostrify/react';
+import { useInfiniteQuery } from '@tanstack/react-query';
+import type { NostrEvent } from '@nostrify/nostrify';
+
+/**
+ * Hook for fetching a specific user's kind 20 (NIP-68) picture events with infinite scroll
+ */
+export function useUserPictures(pubkey: string) {
+  const { nostr } = useNostr();
+
+  return useInfiniteQuery({
+    queryKey: ['user-pictures', pubkey],
+    queryFn: async ({ pageParam, signal }) => {
+      const filter = pageParam
+        ? { kinds: [20], authors: [pubkey], limit: 20, until: pageParam as number }
+        : { kinds: [20], authors: [pubkey], limit: 20 };
+
+      const events = await nostr.query([filter], {
+        signal: AbortSignal.any([signal, AbortSignal.timeout(1500)])
+      });
+
+      return events as NostrEvent[];
+    },
+    getNextPageParam: (lastPage) => {
+      if (lastPage.length === 0) return undefined;
+      // Subtract 1 since 'until' is inclusive
+      return lastPage[lastPage.length - 1].created_at - 1;
+    },
+    initialPageParam: undefined as number | undefined,
+    enabled: !!pubkey,
+  });
+}

src/pages/NIP19Page.tsx

@@ -1,6 +1,14 @@
 import { nip19 } from 'nostr-tools';
 import { useParams } from 'react-router-dom';
 import { Layout } from '@/components/Layout';
+import { ProfileHeader } from '@/components/profile/ProfileHeader';
+import { MinimalPictureCard } from '@/components/feed/MinimalPictureCard';
+import { useAuthor } from '@/hooks/useAuthor';
+import { useUserPictures } from '@/hooks/useUserPictures';
+import { Button } from '@/components/ui/button';
+import { Card, CardContent } from '@/components/ui/card';
+import { Skeleton } from '@/components/ui/skeleton';
+import { Loader2 } from 'lucide-react';
 import NotFound from './NotFound';
 
 export function NIP19Page() {
@@ -17,21 +25,20 @@ export function NIP19Page() {
     return <NotFound />;
   }
 
-  const { type } = decoded;
+  const { type, data } = decoded;
 
   switch (type) {
     case 'npub':
-    case 'nprofile':
-      // AI agent should implement profile view here
+    case 'nprofile': {
+      // Extract pubkey from decoded data
+      const pubkey = type === 'npub' ? data : data.pubkey;
+      
       return (
         <Layout>
-          <div className="container py-8">
-            <div className="max-w-2xl mx-auto">
-              Profile placeholder
-            </div>
-          </div>
+          <ProfileView pubkey={pubkey} />
         </Layout>
       );
+    }
 
     case 'note':
       // AI agent should implement note view here
@@ -72,4 +79,79 @@ export function NIP19Page() {
     default:
       return <NotFound />;
   }
-} 
+}
+
+function ProfileView({ pubkey }: { pubkey: string }) {
+  const author = useAuthor(pubkey);
+  const {
+    data,
+    fetchNextPage,
+    hasNextPage,
+    isFetchingNextPage,
+    isLoading,
+  } = useUserPictures(pubkey);
+
+  const pictures = data?.pages.flat() || [];
+
+  return (
+    <div className="container py-8">
+      <div className="max-w-6xl mx-auto space-y-8">
+        {/* Profile Header */}
+        <ProfileHeader
+          pubkey={pubkey}
+          metadata={author.data?.metadata}
+          isLoading={author.isLoading}
+        />
+
+        {/* Pictures Section */}
+        <div>
+          <h2 className="text-2xl font-bold mb-4">Pictures</h2>
+          
+          {isLoading ? (
+            <div className="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-4 gap-4">
+              {[...Array(8)].map((_, i) => (
+                <Skeleton key={i} className="aspect-square rounded-lg" />
+              ))}
+            </div>
+          ) : pictures.length === 0 ? (
+            <Card className="border-dashed">
+              <CardContent className="py-12 px-8 text-center">
+                <p className="text-muted-foreground">
+                  No pictures found for this user.
+                </p>
+              </CardContent>
+            </Card>
+          ) : (
+            <>
+              <div className="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-4 gap-4">
+                {pictures.map((event) => (
+                  <MinimalPictureCard key={event.id} event={event} />
+                ))}
+              </div>
+
+              {hasNextPage && (
+                <div className="flex justify-center mt-8">
+                  <Button
+                    onClick={() => fetchNextPage()}
+                    disabled={isFetchingNextPage}
+                    variant="outline"
+                    size="lg"
+                  >
+                    {isFetchingNextPage ? (
+                      <>
+                        <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                        Loading...
+                      </>
+                    ) : (
+                      'Load More'
+                    )}
+                  </Button>
+                </div>
+              )}
+            </>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}