refactor: Projektstruktur in app/ und backend/ aufgeteilt

2026-03-24 15:06:44 +01:00
parent 5f5d5995c5
commit 2673ef658d
449 changed files with 28551 additions and 167 deletions
--- a/app/lib/chats_view.dart
+++ b/app/lib/chats_view.dart
@@ -0,0 +1,186 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'l10n/app_localizations.dart';
+import 'models/chat.dart';
+import 'services/chat_service.dart';
+import 'widgets/offline_banner.dart';
+
+class ChatsView extends StatefulWidget {
+  const ChatsView({super.key});
+
+  @override
+  State<ChatsView> createState() => _ChatsViewState();
+}
+
+class _ChatsViewState extends State<ChatsView> {
+  final ChatService _chatService = ChatService();
+  List<Chat> _chats = const [];
+  StreamSubscription<List<Chat>>? _chatSubscription;
+  bool _isInitializing = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _initializeChats();
+  }
+
+  Future<void> _initializeChats() async {
+    await _chatService.initialize();
+    if (!mounted) return;
+
+    setState(() {
+      _chats = _chatService.currentChats;
+      _isInitializing = false;
+    });
+
+    _chatSubscription = _chatService.chatsStream.listen((chats) {
+      if (!mounted) return;
+      setState(() {
+        _chats = chats;
+      });
+    });
+  }
+
+  @override
+  void dispose() {
+    _chatSubscription?.cancel();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(AppLocalizations.of(context).chats),
+        backgroundColor: Colors.deepPurple[100],
+      ),
+      body: Column(
+        children: [
+          const OfflineBanner(),
+          Expanded(child: _buildBody()),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildBody() {
+    if (_isInitializing) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    if (_chats.isEmpty) {
+      return const Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(Icons.chat_outlined, size: 64, color: Colors.grey),
+            SizedBox(height: 16),
+            Text(
+              'Keine Chats verfügbar',
+              style: TextStyle(fontSize: 16, color: Colors.grey),
+            ),
+          ],
+        ),
+      );
+    }
+
+    return ListView.builder(
+      itemCount: _chats.length,
+      itemBuilder: (context, index) {
+        final chat = _chats[index];
+        return _buildChatTile(chat);
+      },
+    );
+  }
+
+  Widget _buildChatTile(Chat chat) {
+    final isJobChat = chat.type == ChatType.jobSpecific;
+    final hasMessages = chat.messages.isNotEmpty;
+    final previewText =
+        hasMessages ? chat.lastMessagePreview : 'Noch keine Nachrichten';
+    final timeLabel = hasMessages ? _formatTime(chat.lastMessageTime) : '--';
+    final jobId = chat.jobId?.trim();
+    final jobNumber = chat.jobNumber?.trim();
+    final showJobId = isJobChat && jobId != null && jobId.isNotEmpty;
+
+    return Card(
+      margin: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+      child: ListTile(
+        leading: CircleAvatar(
+          backgroundColor: isJobChat ? Colors.blue[100] : Colors.green[100],
+          child: Icon(
+            isJobChat ? Icons.work : Icons.support_agent,
+            color: isJobChat ? Colors.blue[700] : Colors.green[700],
+          ),
+        ),
+        title: Text(() {
+          if (isJobChat) {
+            if (jobNumber != null && jobNumber.isNotEmpty) {
+              return 'Job $jobNumber';
+            }
+            if (showJobId) {
+              return 'Job $jobId';
+            }
+          }
+          return chat.type == ChatType.general
+              ? 'Allgemeine Nachrichten'
+              : chat.title;
+        }(), style: const TextStyle(fontWeight: FontWeight.w600, fontSize: 16)),
+        subtitle: Text(
+          previewText,
+          maxLines: 1,
+          overflow: TextOverflow.ellipsis,
+          style: TextStyle(fontSize: 14, color: Colors.grey[700]),
+        ),
+        trailing: Column(
+          crossAxisAlignment: CrossAxisAlignment.end,
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Text(
+              timeLabel,
+              style: TextStyle(fontSize: 12, color: Colors.grey[500]),
+            ),
+            const SizedBox(height: 4),
+            Container(
+              padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
+              decoration: BoxDecoration(
+                color: isJobChat ? Colors.blue[50] : Colors.green[50],
+                borderRadius: BorderRadius.circular(10),
+                border: Border.all(
+                  color: isJobChat ? Colors.blue[200]! : Colors.green[200]!,
+                ),
+              ),
+              child: Text(
+                isJobChat ? 'JOB' : 'ALLG',
+                style: TextStyle(
+                  fontSize: 10,
+                  fontWeight: FontWeight.w600,
+                  color: isJobChat ? Colors.blue[700] : Colors.green[700],
+                ),
+              ),
+            ),
+          ],
+        ),
+        onTap: () {
+          Navigator.of(context).pushNamed('/chat_details', arguments: chat);
+        },
+      ),
+    );
+  }
+
+  String _formatTime(DateTime dateTime) {
+    final now = DateTime.now();
+    final difference = now.difference(dateTime);
+
+    if (difference.inDays > 0) {
+      return '${difference.inDays}T';
+    } else if (difference.inHours > 0) {
+      return '${difference.inHours}h';
+    } else if (difference.inMinutes > 0) {
+      return '${difference.inMinutes}m';
+    } else {
+      return 'jetzt';
+    }
+  }
+}