implementation of payment feature

lib/view/payment/payment_screen.dart

@@ -3,7 +3,7 @@ import 'package:provider/provider.dart';
 import 'package:marco/controller/payment/payment_controller.dart';
 import 'package:get/get.dart';
 
-class PaymentScreen extends StatelessWidget {
+class PaymentScreen extends StatefulWidget {
   final double amount;
   final String description;
 
@@ -13,14 +13,57 @@ class PaymentScreen extends StatelessWidget {
     this.description = "No description",
   });
 
+  @override
+  State<PaymentScreen> createState() => _PaymentScreenState();
+}
+
+class _PaymentScreenState extends State<PaymentScreen> {
+  PaymentController? _controller;
+  bool _controllerOwned = false; // true if we created it locally
+
+  @override
+  void initState() {
+    super.initState();
+    // don't initialize controller here — we need context to try Provider.of()
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    if (_controller == null) {
+      // Try to get from Provider (if app provides one)
+      try {
+        // If a provider exists, this returns it; if not, it throws.
+        _controller = Provider.of<PaymentController>(context, listen: false);
+        _controllerOwned = false;
+      } catch (e) {
+        // No provider: create our own controller and mark ownership
+        _controller = PaymentController();
+        _controllerOwned = true;
+      }
+    }
+  }
+
+  @override
+  void dispose() {
+    // If we created the controller, dispose its resources (Razorpay listeners)
+    if (_controllerOwned) {
+      try {
+        _controller?.disposeController();
+      } catch (_) {}
+    }
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
+    // Accept arguments from Get.arguments fallback to widget fields
     final args = (Get.arguments ?? {}) as Map<String, dynamic>;
-    final double finalAmount = args['amount'] ?? amount;
-    final String finalDescription = args['description'] ?? description;
-
-    final paymentController = Provider.of<PaymentController>(context);
+    final double finalAmount = (args['amount'] ?? widget.amount).toDouble();
+    final String finalDescription = args['description'] ?? widget.description;
+    final String orderId = args['orderId'] ?? '';
 
+    final controller = _controller!;
     return Scaffold(
       appBar: AppBar(
         title: const Text("Payment"),
@@ -32,45 +75,40 @@ class PaymentScreen extends StatelessWidget {
           mainAxisAlignment: MainAxisAlignment.center,
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            Text(
-              "Description: $finalDescription",
-              style: const TextStyle(fontSize: 18),
-            ),
+            if (orderId.isNotEmpty)
+              Text("Order ID: $orderId", style: const TextStyle(fontSize: 18)),
+            if (orderId.isNotEmpty) const SizedBox(height: 8),
+            Text("Description: $finalDescription",
+                style: const TextStyle(fontSize: 18)),
             const SizedBox(height: 8),
-            Text(
-              "Amount: ₹${finalAmount.toStringAsFixed(2)}",
-              style: const TextStyle(
-                fontSize: 22,
-                fontWeight: FontWeight.bold,
-              ),
-            ),
+            Text("Amount: ₹${finalAmount.toStringAsFixed(2)}",
+                style: const TextStyle(
+                  fontSize: 22,
+                  fontWeight: FontWeight.bold,
+                )),
             const SizedBox(height: 40),
-
-            // ✅ Show loader when payment processing
             Center(
-              child: paymentController.isProcessing
-                  ? const CircularProgressIndicator()
-                  : ElevatedButton(
-                      onPressed: () async {
-                        await paymentController.startPayment(
-                          amount: finalAmount,
-                          description: finalDescription,
-                          context: context,
-                        );
-                      },
-                      style: ElevatedButton.styleFrom(
-                        padding: const EdgeInsets.symmetric(
-                            horizontal: 40, vertical: 15),
-                        shape: RoundedRectangleBorder(
-                          borderRadius: BorderRadius.circular(12),
-                        ),
-                        backgroundColor: Colors.green,
-                      ),
-                      child: const Text(
-                        "Pay Now",
-                        style: TextStyle(fontSize: 18, color: Colors.white),
-                      ),
-                    ),
+              child: ElevatedButton(
+                onPressed: () async {
+                  await controller.startPayment(
+                    amount: finalAmount,
+                    description: finalDescription,
+                    context: context,
+                  );
+                },
+                style: ElevatedButton.styleFrom(
+                  padding:
+                      const EdgeInsets.symmetric(horizontal: 40, vertical: 15),
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(12),
+                  ),
+                  backgroundColor: Colors.green,
+                ),
+                child: const Text(
+                  "Pay Now",
+                  style: TextStyle(fontSize: 18, color: Colors.white),
+                ),
+              ),
             ),
           ],
         ),