feat: show notice board items as messages

firka/lib/routing/app_router.dart

@@ -84,7 +84,7 @@ GoRouter createAppRouter() {
       GoRoute(
         path: '/message',
         builder: (context, state) {
-          final info = state.extra as InfoBoardItem?;
+          final info = state.extra as MessageItem?;
           if (info == null) {
             return const SizedBox.shrink();
           }

firka/lib/ui/phone/pages/home/home_main.dart

@@ -297,13 +297,13 @@ class _HomeMainScreen extends FirkaState<HomeMainScreen> {
     }
 
     if (student != null && lessons != null) {
-      final infoItems = infoBoard ?? [];
+      final infoItems = [...(infoBoard ?? []), ...(noticeBoard ?? [])];
       final gradeItems = grades ?? [];
       final homeworkItems = homework ?? [];
       final noticeBoardWidgets = <(Widget, DateTime)>[];
 
       for (final item in infoItems) {
-        noticeBoardWidgets.add((InfoCard.infoBoardItem(item), item.date));
+        noticeBoardWidgets.add((InfoCard.messageItem(item), item.date));
       }
 
       for (final grade in gradeItems) {

firka/lib/ui/phone/screens/message/message_screen.dart

@@ -10,9 +10,9 @@ import 'package:firka/ui/shared/firka_icon.dart';
 
 class MessageScreen extends StatelessWidget {
   final AppInitialization data;
-  final InfoBoardItem info;
+  final MessageItem message;
 
-  const MessageScreen(this.data, this.info, {super.key});
+  const MessageScreen(this.data, this.message, {super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -68,7 +68,7 @@ class MessageScreen extends StatelessWidget {
                           SizedBox(
                             width: MediaQuery.of(context).size.width * 0.85,
                             child: Text(
-                              info.title,
+                              message.title,
                               textAlign: TextAlign.center,
                               style: appStyle.fonts.H_H2.apply(
                                 color: appStyle.colors.textPrimary,
@@ -82,7 +82,7 @@ class MessageScreen extends StatelessWidget {
                         mainAxisAlignment: MainAxisAlignment.center,
                         children: [
                           Text(
-                            info.date.format(data.l10n, FormatMode.yyyymmdd),
+                            message.date.format(data.l10n, FormatMode.yyyymmdd),
                             textAlign: TextAlign.center,
                             style: appStyle.fonts.B_16R.apply(
                               color: appStyle.colors.textSecondary,
@@ -107,7 +107,7 @@ class MessageScreen extends StatelessWidget {
                                   Padding(
                                     padding: const EdgeInsets.only(bottom: 6),
                                     child: Text(
-                                      info.author[0],
+                                      message.author[0],
                                       style: appStyle.fonts.H_18px.copyWith(
                                         fontSize: 20,
                                         color: appStyle.colors.textPrimary,
@@ -125,7 +125,7 @@ class MessageScreen extends StatelessWidget {
                               SizedBox(
                                 width: MediaQuery.of(context).size.width / 1.4,
                                 child: Text(
-                                  info.author,
+                                  message.author,
                                   style: appStyle.fonts.B_16SB.apply(
                                     color: appStyle.colors.textPrimary,
                                   ),
@@ -151,7 +151,7 @@ class MessageScreen extends StatelessWidget {
                               padding: const EdgeInsets.all(12),
                               child: SingleChildScrollView(
                                 child: Text(
-                                  info.contentText,
+                                  message.contentText,
                                   style: appStyle.fonts.B_16R.apply(
                                     color: appStyle.colors.textPrimary,
                                   ),

firka/lib/ui/phone/widgets/info_card.dart

@@ -48,7 +48,7 @@ class InfoCard extends StatelessWidget {
     );
   }
 
-  factory InfoCard.infoBoardItem(InfoBoardItem item) {
+  factory InfoCard.messageItem(MessageItem item) {
     return InfoCard(
       icon: FilledCircle(
         diameter: 36,

kreta_api/lib/src/model/notice_board.dart

@@ -1,24 +1,40 @@
 import '../extensions.dart';
 import 'generic.dart';
 
-class NoticeBoardItem extends UidObj {
-  final String author;
-  final DateTime validFrom;
-  final DateTime validTo;
+abstract class MessageItem extends UidObj {
   final String title;
+  final String author;
   final String contentHTML;
   final String contentText;
 
-  NoticeBoardItem({
+  MessageItem({
     required super.uid,
-    required this.author,
-    required this.validFrom,
-    required this.validTo,
     required this.title,
+    required this.author,
     required this.contentHTML,
     required this.contentText,
   });
 
+  DateTime get date;
+}
+
+class NoticeBoardItem extends MessageItem {
+  final DateTime validFrom;
+  final DateTime validTo;
+
+  @override
+  DateTime get date => validFrom;
+
+  NoticeBoardItem({
+    required super.uid,
+    required super.title,
+    required super.author,
+    required super.contentHTML,
+    required super.contentText,
+    required this.validFrom,
+    required this.validTo,
+  });
+
   factory NoticeBoardItem.fromJson(Map<String, dynamic> json) {
     return NoticeBoardItem(
       uid: json['Uid'],
@@ -45,23 +61,19 @@ class NoticeBoardItem extends UidObj {
   }
 }
 
-class InfoBoardItem extends UidObj {
-  final String title;
+class InfoBoardItem extends MessageItem {
   final DateTime date;
-  final String author;
   final DateTime createdAt;
-  final String contentHTML;
-  final String contentText;
   final NameUidDesc type;
 
   InfoBoardItem({
     required super.uid,
-    required this.title,
-    required this.date,
-    required this.author,
+    required super.title,
+    required super.author,
+    required super.contentHTML,
+    required super.contentText,
     required this.createdAt,
-    required this.contentHTML,
-    required this.contentText,
+    required this.date,
     required this.type,
   });