✨ Chat basis

lib/widgets/chat/chat_message.dart

@@ -0,0 +1,104 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_animate/flutter_animate.dart';
+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:timeago/timeago.dart' show format;
+
+class ChatMessage extends StatelessWidget {
+  final Message item;
+  final bool isCompact;
+
+  const ChatMessage({super.key, required this.item, required this.isCompact});
+
+  Future<String?> decodeContent(Map<String, dynamic> content) async {
+    String? text;
+    if (item.type == 'm.text') {
+      switch (content['algorithm']) {
+        case 'plain':
+          text = content['value'];
+        default:
+          throw Exception('Unsupported algorithm');
+        // TODO Impl AES algorithm
+      }
+    }
+
+    return text;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final hasAttachment = item.attachments?.isNotEmpty ?? false;
+
+    return Column(
+      children: [
+        Row(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            AccountAvatar(content: item.sender.account.avatar),
+            Expanded(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Row(
+                    children: [
+                      Text(
+                        item.sender.account.nick,
+                        style: const TextStyle(fontWeight: FontWeight.bold),
+                      ),
+                      const SizedBox(width: 4),
+                      Text(format(item.createdAt, locale: 'en_short'))
+                    ],
+                  ).paddingSymmetric(horizontal: 12),
+                  FutureBuilder(
+                      future: decodeContent(item.content),
+                      builder: (context, snapshot) {
+                        if (!snapshot.hasData) {
+                          return Opacity(
+                            opacity: 0.8,
+                            child: Row(
+                              children: [
+                                const Icon(Icons.more_horiz),
+                                Text('messageDecoding'.tr)
+                              ],
+                            ),
+                          )
+                              .animate(onPlay: (c) => c.repeat())
+                              .fade(begin: 0, end: 1);
+                        } else if (snapshot.hasError) {
+                          return Opacity(
+                            opacity: 0.9,
+                            child: Row(
+                              children: [
+                                const Icon(Icons.close),
+                                Text(
+                                  'messageDecodeFailed'.trParams(
+                                      {'message': snapshot.error.toString()}),
+                                )
+                              ],
+                            ),
+                          );
+                        }
+
+                        return Markdown(
+                          shrinkWrap: true,
+                          physics: const NeverScrollableScrollPhysics(),
+                          data: snapshot.data ?? '',
+                          padding: const EdgeInsets.all(0),
+                        ).paddingOnly(
+                          left: 12,
+                          right: 12,
+                          top: 2,
+                          bottom: hasAttachment ? 4 : 0,
+                        );
+                      }),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ],
+    );
+  }
+}

lib/widgets/navigation/app_navigation_bottom_bar.dart

@@ -15,18 +15,21 @@ class _AppNavigationBottomBarState extends State<AppNavigationBottomBar> {
   @override
   Widget build(BuildContext context) {
     return BottomNavigationBar(
-      items: AppNavigation.destinations.map(
-        (e) => BottomNavigationBarItem(
-          icon: e.icon,
-          label: e.label,
-        ),
-      ).toList(),
+      items: AppNavigation.destinations
+          .map(
+            (e) => BottomNavigationBarItem(
+              icon: e.icon,
+              label: e.label,
+            ),
+          )
+          .toList(),
       landscapeLayout: BottomNavigationBarLandscapeLayout.centered,
       currentIndex: _selectedIndex,
       showUnselectedLabels: false,
       onTap: (idx) {
         setState(() => _selectedIndex = idx);
-        AppRouter.instance.goNamed(AppNavigation.destinations[idx].page);
+        AppRouter.instance
+            .pushReplacementNamed(AppNavigation.destinations[idx].page);
       },
     );
   }

lib/widgets/navigation/app_navigation_rail.dart

@@ -27,7 +27,8 @@ class _AppNavigationRailState extends State<AppNavigationRail> {
       selectedIndex: _selectedIndex,
       onDestinationSelected: (idx) {
         setState(() => _selectedIndex = idx);
-        AppRouter.instance.pushNamed(AppNavigation.destinations[idx].page);
+        AppRouter.instance
+            .pushReplacementNamed(AppNavigation.destinations[idx].page);
       },
     );
   }