feat: chat badges

closes #15

lib/widgets/chat.dart

@@ -64,6 +64,16 @@ class ChatWidget extends StatelessWidget {
                 .where((e) => e.kind == 9735)
                 .map((e) => ZapReceipt.fromEvent(e))
                 .toList();
+        // pubkey -> Set<badge a tag>
+        final badgeAwards = filteredChat
+            .where((e) => e.kind == 8)
+            .map((e) => e.getTags("p").map((p) => (p, e.getFirstTag("a")!)))
+            .expand((v) => v)
+            .groupFoldBy(
+              (e) => e.$1,
+              (Set<String>? acc, v) => (acc ?? {})..add(v.$2),
+            );
+
         return Column(
           spacing: 8,
           crossAxisAlignment: CrossAxisAlignment.start,
@@ -81,6 +91,15 @@ class ChatWidget extends StatelessWidget {
                         key: Key("chat:${filteredChat[idx].id}"),
                         stream: stream,
                         msg: filteredChat[idx],
+                        badges:
+                            badgeAwards[filteredChat[idx].pubKey]
+                                ?.map(
+                                  (a) => ChatBadgeWidget.fromATag(
+                                    a,
+                                    key: Key("${filteredChat[idx].pubKey}:$a"),
+                                  ),
+                                )
+                                .toList(),
                       ),
                       1312 => ChatRaidMessage(
                         event: filteredChat[idx],

lib/widgets/chat_badge.dart

@@ -72,3 +72,28 @@ class ChatBadgeAwardWidget extends StatelessWidget {
     );
   }
 }
+
+class ChatBadgeWidget extends StatelessWidget {
+  final Nip01Event badge;
+
+  const ChatBadgeWidget({super.key, required this.badge});
+
+  static Widget fromATag(String aTag, {Key? key}) {
+    return FutureBuilder(
+      future: ndk.requests.query(filters: [aTagToFilter(aTag)]).future,
+      builder: (context, state) {
+        final ev = state.data?.firstOrNull;
+        if (ev == null) return SizedBox();
+        return ChatBadgeWidget(badge: ev, key: key);
+      },
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final image = badge.getFirstTag("image");
+    if (image?.isEmpty ?? true) return SizedBox();
+
+    return ProxyImg(url: image, resize: 24, height: 24, key: UniqueKey());
+  }
+}

lib/widgets/chat_message.dart

@@ -13,8 +13,14 @@ import 'package:zap_stream_flutter/widgets/profile.dart';
 class ChatMessageWidget extends StatelessWidget {
   final StreamEvent stream;
   final Nip01Event msg;
+  final List<Widget>? badges;
 
-  const ChatMessageWidget({super.key, required this.stream, required this.msg});
+  const ChatMessageWidget({
+    super.key,
+    required this.stream,
+    required this.msg,
+    this.badges,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -60,6 +66,16 @@ class ChatMessageWidget extends StatelessWidget {
               ),
             ),
           ),
+          if (badges?.isNotEmpty ?? false) TextSpan(text: " "),
+          if (badges?.isNotEmpty ?? false)
+            WidgetSpan(
+              alignment: PlaceholderAlignment.middle,
+              child: Row(
+                spacing: 4,
+                mainAxisSize: MainAxisSize.min,
+                children: badges!,
+              ),
+            ),
           TextSpan(text: " "),
           ...textToSpans(msg.content, msg.tags, msg.pubKey),
         ],