loyalty

lib/features/loyalty/presentation/providers/loyalty_points_provider.dart

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+/// Loyalty Points Provider
+///
+/// State management for user's loyalty points and balance information.
+library;
+
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'loyalty_points_provider.g.dart';
+
+/// Loyalty Points State
+///
+/// Contains user's available points and expiration information.
+class LoyaltyPointsState {
+  /// Current available points
+  final int availablePoints;
+
+  /// Points that will expire soon
+  final int expiringPoints;
+
+  /// Expiration date for expiring points
+  final DateTime? expirationDate;
+
+  /// Points earned this month
+  final int earnedThisMonth;
+
+  /// Points spent this month
+  final int spentThisMonth;
+
+  const LoyaltyPointsState({
+    required this.availablePoints,
+    required this.expiringPoints,
+    this.expirationDate,
+    required this.earnedThisMonth,
+    required this.spentThisMonth,
+  });
+
+  /// Factory for initial state
+  factory LoyaltyPointsState.initial() {
+    return const LoyaltyPointsState(
+      availablePoints: 0,
+      expiringPoints: 0,
+      expirationDate: null,
+      earnedThisMonth: 0,
+      spentThisMonth: 0,
+    );
+  }
+
+  /// Copy with method
+  LoyaltyPointsState copyWith({
+    int? availablePoints,
+    int? expiringPoints,
+    DateTime? expirationDate,
+    int? earnedThisMonth,
+    int? spentThisMonth,
+  }) {
+    return LoyaltyPointsState(
+      availablePoints: availablePoints ?? this.availablePoints,
+      expiringPoints: expiringPoints ?? this.expiringPoints,
+      expirationDate: expirationDate ?? this.expirationDate,
+      earnedThisMonth: earnedThisMonth ?? this.earnedThisMonth,
+      spentThisMonth: spentThisMonth ?? this.spentThisMonth,
+    );
+  }
+}
+
+/// Loyalty Points Provider
+///
+/// Manages user's loyalty points balance.
+/// Currently returns mock data matching the HTML design.
+@riverpod
+class LoyaltyPoints extends _$LoyaltyPoints {
+  @override
+  LoyaltyPointsState build() {
+    // Mock data matching HTML design: 9,750 points available
+    // 1,200 points expiring on 31/12/2023
+    return LoyaltyPointsState(
+      availablePoints: 9750,
+      expiringPoints: 1200,
+      expirationDate: DateTime(2023, 12, 31),
+      earnedThisMonth: 2500,
+      spentThisMonth: 800,
+    );
+  }
+
+  /// Refresh points data
+  Future<void> refresh() async {
+    // TODO: Fetch from API
+    // For now, just reset to mock data
+    state = build();
+  }
+
+  /// Deduct points after redemption
+  void deductPoints(int points) {
+    if (state.availablePoints >= points) {
+      state = state.copyWith(
+        availablePoints: state.availablePoints - points,
+        spentThisMonth: state.spentThisMonth + points,
+      );
+    }
+  }
+
+  /// Add points (e.g., from earning activity)
+  void addPoints(int points) {
+    state = state.copyWith(
+      availablePoints: state.availablePoints + points,
+      earnedThisMonth: state.earnedThisMonth + points,
+    );
+  }
+
+  /// Check if user has enough points for a redemption
+  bool hasEnoughPoints(int requiredPoints) {
+    return state.availablePoints >= requiredPoints;
+  }
+}
+
+/// Provider to check if user has enough points for a specific amount
+@riverpod
+bool hasEnoughPoints(Ref ref, int requiredPoints) {
+  final points = ref.watch(loyaltyPointsProvider).availablePoints;
+  return points >= requiredPoints;
+}