From d1b79487237e8cb4d37a4eabea5912cf58c7f48b Mon Sep 17 00:00:00 2001
From: fiatcode <fiatcode@noreply.codeberg.org>
Date: Thu, 30 Apr 2026 11:12:30 +0700
Subject: [PATCH] feat: add Preferences for settings persistence

---
 lib/preferences.dart | 103 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 lib/preferences.dart

diff --git a/lib/preferences.dart b/lib/preferences.dart
new file mode 100644
index 0000000..bd7ed63
--- /dev/null
+++ b/lib/preferences.dart
@@ -0,0 +1,103 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+class Preferences {
+  static const String keyServerUrl = 'server_url';
+  static const String keyDeviceId = 'device_id';
+  static const String keyPassword = 'password';
+  static const String keyAccuracy = 'accuracy';
+  static const String keyDistanceFilter = 'distance_filter';
+  static const String keyInterval = 'interval';
+  static const String keyFastestInterval = 'fastest_interval';
+  static const String keyAngleFilter = 'angle_filter';
+  static const String keyHeartbeat = 'heartbeat';
+  static const String keyOfflineBuffer = 'offline_buffer';
+  static const String keyStopDetection = 'stop_detection';
+
+  static SharedPreferences? _instance;
+
+  static Future<void> init() async {
+    _instance = await SharedPreferences.getInstance();
+  }
+
+  static SharedPreferences get instance {
+    if (_instance == null) {
+      throw Exception('Preferences not initialized. Call Preferences.init() first.');
+    }
+    return _instance!;
+  }
+
+  static String get serverUrl =>
+      instance.getString(keyServerUrl) ?? 'https://demo.traccar.org';
+
+  static String get deviceId =>
+      instance.getString(keyDeviceId) ?? _generateDeviceId();
+
+  static String get password => instance.getString(keyPassword) ?? '';
+
+  static int get accuracy => instance.getInt(keyAccuracy) ?? 0;
+
+  static int get distanceFilter => instance.getInt(keyDistanceFilter) ?? 75;
+
+  static int get interval => instance.getInt(keyInterval) ?? 300;
+
+  static int get fastestInterval => instance.getInt(keyFastestInterval) ?? 30;
+
+  static int get angleFilter => instance.getInt(keyAngleFilter) ?? 0;
+
+  static int get heartbeat => instance.getInt(keyHeartbeat) ?? 60;
+
+  static bool get offlineBuffer => instance.getBool(keyOfflineBuffer) ?? true;
+
+  static bool get stopDetection => instance.getBool(keyStopDetection) ?? true;
+
+  static Future<void> setServerUrl(String value) async {
+    await instance.setString(keyServerUrl, value);
+  }
+
+  static Future<void> setDeviceId(String value) async {
+    await instance.setString(keyDeviceId, value);
+  }
+
+  static Future<void> setPassword(String value) async {
+    await instance.setString(keyPassword, value);
+  }
+
+  static Future<void> setAccuracy(int value) async {
+    await instance.setInt(keyAccuracy, value);
+  }
+
+  static Future<void> setDistanceFilter(int value) async {
+    await instance.setInt(keyDistanceFilter, value);
+  }
+
+  static Future<void> setInterval(int value) async {
+    await instance.setInt(keyInterval, value);
+  }
+
+  static Future<void> setFastestInterval(int value) async {
+    await instance.setInt(keyFastestInterval, value);
+  }
+
+  static Future<void> setAngleFilter(int value) async {
+    await instance.setInt(keyAngleFilter, value);
+  }
+
+  static Future<void> setHeartbeat(int value) async {
+    await instance.setInt(keyHeartbeat, value);
+  }
+
+  static Future<void> setOfflineBuffer(bool value) async {
+    await instance.setBool(keyOfflineBuffer, value);
+  }
+
+  static Future<void> setStopDetection(bool value) async {
+    await instance.setBool(keyStopDetection, value);
+  }
+
+  static String _generateDeviceId() {
+    final random = DateTime.now().millisecondsSinceEpoch % 100000000;
+    final deviceId = random.toString().padLeft(8, '0');
+    instance.setString(keyDeviceId, deviceId);
+    return deviceId;
+  }
+}
\ No newline at end of file