Initial commit: MeshCore Open Flutter client

Open-source Flutter client for MeshCore LoRa mesh networking devices. Features: - BLE device scanning and connection - Nordic UART Service (NUS) integration - Material 3 design with system theme support - Provider-based state management - Placeholder screens for chat, contacts, and settings 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-07-25 21:16:40 +10:00 · 2025-12-26 11:42:02 -07:00
commit e7a5b9e209
177 changed files with 20129 additions and 0 deletions
@@ -0,0 +1,85 @@
+import 'dart:convert';
+import 'dart:typed_data';
+import 'package:shared_preferences/shared_preferences.dart';
+import '../models/message.dart';
+
+class MessageStore {
+  static const String _keyPrefix = 'messages_';
+
+  Future<void> saveMessages(String contactKeyHex, List<Message> messages) async {
+    final prefs = await SharedPreferences.getInstance();
+    final key = '$_keyPrefix$contactKeyHex';
+    final jsonList = messages.map(_messageToJson).toList();
+    await prefs.setString(key, jsonEncode(jsonList));
+  }
+
+  Future<List<Message>> loadMessages(String contactKeyHex) async {
+    final prefs = await SharedPreferences.getInstance();
+    final key = '$_keyPrefix$contactKeyHex';
+    final jsonString = prefs.getString(key);
+    if (jsonString == null) return [];
+
+    try {
+      final jsonList = jsonDecode(jsonString) as List<dynamic>;
+      return jsonList.map((json) => _messageFromJson(json)).toList();
+    } catch (e) {
+      return [];
+    }
+  }
+
+  Future<void> clearMessages(String contactKeyHex) async {
+    final prefs = await SharedPreferences.getInstance();
+    final key = '$_keyPrefix$contactKeyHex';
+    await prefs.remove(key);
+  }
+
+  Map<String, dynamic> _messageToJson(Message msg) {
+    return {
+      'senderKey': base64Encode(msg.senderKey),
+      'text': msg.text,
+      'timestamp': msg.timestamp.millisecondsSinceEpoch,
+      'isOutgoing': msg.isOutgoing,
+      'isCli': msg.isCli,
+      'status': msg.status.index,
+      'messageId': msg.messageId,
+      'retryCount': msg.retryCount,
+      'estimatedTimeoutMs': msg.estimatedTimeoutMs,
+      'expectedAckHash': msg.expectedAckHash != null ? base64Encode(msg.expectedAckHash!) : null,
+      'sentAt': msg.sentAt?.millisecondsSinceEpoch,
+      'deliveredAt': msg.deliveredAt?.millisecondsSinceEpoch,
+      'tripTimeMs': msg.tripTimeMs,
+      'forceFlood': msg.forceFlood,
+      'pathLength': msg.pathLength,
+      'pathBytes': msg.pathBytes.isNotEmpty ? base64Encode(msg.pathBytes) : null,
+    };
+  }
+
+  Message _messageFromJson(Map<String, dynamic> json) {
+    return Message(
+      senderKey: Uint8List.fromList(base64Decode(json['senderKey'] as String)),
+      text: json['text'] as String,
+      timestamp: DateTime.fromMillisecondsSinceEpoch(json['timestamp'] as int),
+      isOutgoing: json['isOutgoing'] as bool,
+      isCli: json['isCli'] as bool? ?? false,
+      status: MessageStatus.values[json['status'] as int],
+      messageId: json['messageId'] as String?,
+      retryCount: json['retryCount'] as int? ?? 0,
+      estimatedTimeoutMs: json['estimatedTimeoutMs'] as int?,
+      expectedAckHash: json['expectedAckHash'] != null
+          ? Uint8List.fromList(base64Decode(json['expectedAckHash'] as String))
+          : null,
+      sentAt: json['sentAt'] != null
+          ? DateTime.fromMillisecondsSinceEpoch(json['sentAt'] as int)
+          : null,
+      deliveredAt: json['deliveredAt'] != null
+          ? DateTime.fromMillisecondsSinceEpoch(json['deliveredAt'] as int)
+          : null,
+      tripTimeMs: json['tripTimeMs'] as int?,
+      forceFlood: json['forceFlood'] as bool? ?? false,
+      pathLength: json['pathLength'] as int?,
+      pathBytes: json['pathBytes'] != null
+          ? Uint8List.fromList(base64Decode(json['pathBytes'] as String))
+          : Uint8List(0),
+    );
+  }
+}