feat: integrate subscription cards and support program-specific reward point validation

lib/screens/rewards_screen.dart

@@ -11,7 +11,8 @@ class RewardsScreen extends StatefulWidget {
 }
 
 class _RewardsScreenState extends State<RewardsScreen> {
-  double _userPoints = 0.0;
+  double _userPoints = 0.0; // Main loyalty points balance shown in the top banner
+  Map<int, double> _programPoints = {}; // Maps programId to card points
   List<dynamic> _rewards = [];
   bool _isLoading = true;
 
@@ -26,30 +27,64 @@ class _RewardsScreenState extends State<RewardsScreen> {
     setState(() => _isLoading = true);
 
     try {
-      final cards = await OdooService().getLoyaltyCards(widget.partnerId);
+      // Fetch both loyalty cards and subscription cards in parallel
+      final results = await Future.wait([
+        OdooService().getLoyaltyCards(widget.partnerId),
+        OdooService().getSubscriptionCards(widget.partnerId),
+      ]);
 
-      double totalPoints = 0.0;
+      final loyaltyCards = results[0];
-      List<dynamic> rawRewards = [];
+      final subscriptionCards = results[1];
 
-      if (cards.isNotEmpty) {
+      double loyaltyPoints = 0.0;
-        totalPoints = safeDouble(cards.first['points']);
+      final Map<int, double> pointsMap = {};
-        final prog = cards.first['program_id'];
+      final List<int> programIds = [];
-        int? programId;
+
+      // 1. Process main loyalty card
+      if (loyaltyCards.isNotEmpty) {
+        loyaltyPoints = safeDouble(loyaltyCards.first['points']);
+        final prog = loyaltyCards.first['program_id'];
+        int? progId;
         if (prog is List && prog.isNotEmpty) {
-          programId = prog[0] as int?;
+          progId = prog[0] as int?;
         } else if (prog is int) {
-          programId = prog;
+          progId = prog;
         }
+        if (progId != null) {
+          pointsMap[progId] = loyaltyPoints;
+          programIds.add(progId);
+        }
+      }
 
-        if (programId != null) {
+      // 2. Process active subscription cards
-          rawRewards = await OdooService().getLoyaltyRewards(programId);
+      for (final card in subscriptionCards) {
+        final pts = safeDouble(card['points']);
+        final prog = card['program_id'];
+        int? progId;
+        if (prog is List && prog.isNotEmpty) {
+          progId = prog[0] as int?;
+        } else if (prog is int) {
+          progId = prog;
         }
+        if (progId != null) {
+          pointsMap[progId] = pts;
+          if (!programIds.contains(progId)) {
+            programIds.add(progId);
+          }
+        }
+      }
+
+      // 3. Fetch rewards for all resolved program IDs
+      List<dynamic> fetchedRewards = [];
+      if (programIds.isNotEmpty) {
+        fetchedRewards = await OdooService().getLoyaltyRewards(programIds);
       }
 
       if (mounted) {
         setState(() {
-          _userPoints = totalPoints;
+          _userPoints = loyaltyPoints;
-          _rewards = rawRewards;
+          _programPoints = pointsMap;
+          _rewards = fetchedRewards;
           _isLoading = false;
         });
       }
@@ -195,10 +230,28 @@ class _RewardsScreenState extends State<RewardsScreen> {
                       itemBuilder: (context, index) {
                         final reward = _rewards[index];
                         final reqPoints = safeDouble(reward['required_points']);
-                        final isAvailable = _userPoints >= reqPoints;
                         final String desc = safeString(reward['description']) ?? 'Loyalty Reward';
                         final String type = safeString(reward['reward_type']) ?? 'product';
 
+                        // Resolve reward's program ID and name
+                        final progVal = reward['program_id'];
+                        int? rewardProgramId;
+                        String programName = 'Reward';
+                        if (progVal is List && progVal.isNotEmpty) {
+                          rewardProgramId = progVal[0] as int?;
+                          if (progVal.length > 1) {
+                            programName = progVal[1] as String;
+                          }
+                        } else if (progVal is int) {
+                          rewardProgramId = progVal;
+                        }
+
+                        // Determine point balance and availability based on the specific program
+                        final currentCardPoints = rewardProgramId != null
+                            ? (_programPoints[rewardProgramId] ?? 0.0)
+                            : 0.0;
+                        final isAvailable = currentCardPoints >= reqPoints;
+
                         // Decide icon based on reward type
                         IconData iconData = Icons.local_offer_rounded;
                         if (type == 'product') {
@@ -279,6 +332,16 @@ class _RewardsScreenState extends State<RewardsScreen> {
                                       crossAxisAlignment: CrossAxisAlignment.start,
                                       mainAxisAlignment: MainAxisAlignment.center,
                                       children: [
+                                        // Program Source Name
+                                        Text(
+                                          programName.toUpperCase(),
+                                          style: theme.textTheme.labelSmall?.copyWith(
+                                            color: colorScheme.primary.withValues(alpha: 0.65),
+                                            fontWeight: FontWeight.bold,
+                                            letterSpacing: 1.0,
+                                          ),
+                                        ),
+                                        const SizedBox(height: 4),
                                         Row(
                                           crossAxisAlignment: CrossAxisAlignment.start,
                                           children: [
@@ -357,7 +420,7 @@ class _RewardsScreenState extends State<RewardsScreen> {
                                                     ),
                                                     const SizedBox(width: 4),
                                                     Text(
-                                                      'Need ${(reqPoints - _userPoints).toStringAsFixed(0)} more pts',
+                                                      'Need ${(reqPoints - currentCardPoints).toStringAsFixed(0)} more pts',
                                                       style: theme.textTheme.bodySmall?.copyWith(
                                                         color: colorScheme.error,
                                                         fontWeight: FontWeight.bold,