✨ Chat attachments

lib/widgets/chat/chat_message.dart

@@ -4,6 +4,7 @@ import 'package:flutter_markdown/flutter_markdown.dart';
 import 'package:get/get.dart';
 import 'package:solian/models/message.dart';
 import 'package:solian/widgets/account/account_avatar.dart';
+import 'package:solian/widgets/attachments/attachment_list.dart';
 import 'package:timeago/timeago.dart' show format;
 import 'package:url_launcher/url_launcher_string.dart';
 
@@ -136,7 +137,11 @@ class ChatMessage extends StatelessWidget {
                 ),
               ),
             ],
-          ),
+          ).paddingSymmetric(horizontal: 12),
+          AttachmentList(
+            parentId: item.uuid,
+            attachmentsId: item.attachments ?? List.empty(),
+          ).paddingSymmetric(vertical: 4),
         ],
       );
     }

lib/widgets/chat/chat_message_input.dart

@@ -6,6 +6,7 @@ import 'package:solian/models/channel.dart';
 import 'package:solian/models/message.dart';
 import 'package:solian/providers/auth.dart';
 import 'package:solian/services.dart';
+import 'package:solian/widgets/attachments/attachment_publish.dart';
 import 'package:uuid/uuid.dart';
 
 class ChatMessageInput extends StatefulWidget {
@@ -34,6 +35,17 @@ class _ChatMessageInputState extends State<ChatMessageInput> {
 
   List<int> _attachments = List.empty(growable: true);
 
+  void showAttachments() {
+    showModalBottomSheet(
+      context: context,
+      builder: (context) => AttachmentPublishingPopup(
+        usage: 'm.attachment',
+        current: _attachments,
+        onUpdate: (value) => _attachments = value,
+      ),
+    );
+  }
+
   Map<String, dynamic> encodeMessage(String content) {
     // TODO Impl E2EE
 
@@ -144,6 +156,11 @@ class _ChatMessageInputState extends State<ChatMessageInput> {
                       FocusManager.instance.primaryFocus?.unfocus(),
                 ),
               ),
+              IconButton(
+                icon: const Icon(Icons.attach_file),
+                color: Colors.teal,
+                onPressed: () => showAttachments(),
+              ),
               IconButton(
                 icon: const Icon(Icons.send),
                 color: Theme.of(context).colorScheme.primary,