Implemented ConfigService

lib/services/config_service.dart

@@ -0,0 +1,47 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+/// This class handles the configuration settings for the app.
+/// It uses SharedPreferences to store and retrieve the personal configuration of the app.
+/// Currently it provides methods to initialize, get, and set the point limit and cabo penalty.
+class ConfigService {
+  static const String _keyPointLimit = 'pointLimit';
+  static const String _keyCaboPenalty = 'caboPenalty';
+  static const int _defaultPointLimit = 100; // Default Value
+  static const int _defaultCaboPenalty = 5; // Default Value
+
+  static Future<void> initConfig() async {
+    final prefs = await SharedPreferences.getInstance();
+
+    // Default values only set if they are not already set
+    prefs.setInt(
+        _keyPointLimit, prefs.getInt(_keyPointLimit) ?? _defaultPointLimit);
+    prefs.setInt(
+        _keyCaboPenalty, prefs.getInt(_keyCaboPenalty) ?? _defaultCaboPenalty);
+  }
+
+  /// Getter for the point limit.
+  static Future<int> getPointLimit() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getInt(_keyPointLimit) ?? _defaultPointLimit;
+  }
+
+  /// Setter for the point limit.
+  /// [newPointLimit] is the new point limit to be set.
+  static Future<void> setPointLimit(int newPointLimit) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setInt(_keyPointLimit, newPointLimit);
+  }
+
+  /// Getter for the cabo penalty.
+  static Future<int> getCaboPenalty() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getInt(_keyCaboPenalty) ?? _defaultCaboPenalty;
+  }
+
+  /// Setter for the cabo penalty.
+  /// [newCaboPenalty] is the new cabo penalty to be set.
+  static Future<void> setCaboPenalty(int newCaboPenalty) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setInt(_keyCaboPenalty, newCaboPenalty);
+  }
+}