feat: streamline liveness detection flow with improved state management and navigation handling

sigap-mobile/lib/src/features/auth/presentasion/controllers/signup/step/selfie-verification/selfie_verification_controller.dart

@@ -116,45 +116,18 @@ class SelfieVerificationController extends GetxController {
         await Get.delete<FaceLivenessController>();
       }
 
-      // Register a new controller (will be done automatically by the widget)
+      // Navigate to liveness detection page and wait for result
-      final result = await Get.toNamed(
+      await Get.toNamed(
         AppRoutes.livenessDetection,
         preventDuplicates: false, // Allow navigation to same route if needed
       );
 
-      // Handle the result based on what was returned
+      // When returning here, the image should already be set by CapturedSelfieView 
-      if (result is XFile) {
+      // and automatic verification should be triggered by the listener in onInit
-        // Liveness check passed and returned an image
+
-        dev.log(
+      // Reset liveness check flag since we're back
-          'Received result from liveness detection, setting selfie image',
+      isPerformingLivenessCheck.value = false;
-          name: 'SELFIE_VERIFICATION',
-        );
-          
-        selfieImage.value = result;
-        isLivenessCheckPassed.value = true;
-        isPerformingLivenessCheck.value = false;
 
-        // The _processCapturedLivenessImage will be called automatically
-        // due to the ever() listener we set up in onInit
-      } else if (result == 'navigation_handled') {
-        // Special case: navigation was handled by the captured selfie view
-        // The user was already navigated back to this screen
-        dev.log(
-          'Navigation handled by captured selfie view',
-          name: 'SELFIE_VERIFICATION',
-        );
-        isPerformingLivenessCheck.value = false;
-        // Don't reset other states since they should be set by the captured view
-      } else {
-        // User cancelled or something went wrong
-        dev.log(
-          'No result from liveness detection, reset states',
-          name: 'SELFIE_VERIFICATION',
-        );
-        isPerformingLivenessCheck.value = false;
-        isLivenessCheckPassed.value = false;
-        autoStartVerification = false;
-      }
     } catch (e) {
       dev.log('Error in liveness detection: $e', name: 'SELFIE_VERIFICATION');
       isPerformingLivenessCheck.value = false;

sigap-mobile/lib/src/features/auth/presentasion/pages/signup/step/selfie-verification/liveness_detection_screen.dart

@@ -125,10 +125,11 @@ class LivenessDetectionPage extends StatelessWidget {
         icon: const Icon(Icons.arrow_back, color: Colors.black87),
         onPressed: () {
           dev.log('Back button pressed', name: 'LIVENESS_DEBUG');
-          if (selfieController != null) {
+          
-            dev.log('Handling cancellation', name: 'LIVENESS_DEBUG');
+          // Ensure we clean up resources when going back
-            controller.handleCancellation();
+          controller.handleCancellation();
-          }
+          
+          // This allows the user to go back to selfie verification step
           Get.back();
         },
       ),

sigap-mobile/lib/src/features/auth/presentasion/pages/signup/step/selfie-verification/selfie_verification_step.dart

@@ -397,7 +397,13 @@ class SelfieVerificationStep extends StatelessWidget {
         ),
         const SizedBox(height: TSizes.spaceBtwItems),
         ElevatedButton.icon(
-          onPressed: controller.performLivenessDetection,
+          onPressed: () {
+            // Clear any previous images or states before starting new verification
+            controller.clearSelfieImage();
+            controller.resetVerificationState();
+            // Start liveness detection process
+            controller.performLivenessDetection();
+          },
           icon: const Icon(Icons.security),
           label: const Text('Start Face Verification'),
           style: ElevatedButton.styleFrom(

sigap-mobile/lib/src/features/auth/presentasion/pages/signup/step/selfie-verification/widgets/captured_selfie_view.dart

@@ -666,7 +666,7 @@ class _CapturedSelfieViewState extends State<CapturedSelfieView>
         // Set flag to automatically start verification upon returning
         widget.selfieController!.autoStartVerification = true;
 
-        // Set the captured image in the selfie controller - do this last
+        // Set the captured image in the selfie controller
         widget.selfieController!.selfieImage.value = xFile;
 
         dev.log(
@@ -677,30 +677,13 @@ class _CapturedSelfieViewState extends State<CapturedSelfieView>
         // Now dispose the camera after we've handled the image
         widget.controller.disposeCamera();
 
-        // Update the controller to ensure changes propagate
+        // Simply go back to the previous screen (selfie verification step)
-        widget.selfieController!.update();
+        Get.back();
-
-        // Wait a moment to ensure the image is properly set
-        await Future.delayed(Duration(milliseconds: 100));
-        
-        // Navigate back to selfie verification step by removing liveness detection from stack
-        if (mounted && !isDisposed) {
-          // Use Get.offAll to clear the entire navigation stack and go to signup page
-          // The signup page will show the selfie verification step since we've set the image
-          Get.offAllNamed('/signup'); // Replace with your actual signup route
-
-          // Alternative: if you know the exact route name for selfie verification step
-          // Get.offNamed('/signup/selfie-verification');
-        }
       } else {
         widget.controller.disposeCamera();
         
         if (mounted && !isDisposed) {
-          Get.back(
+          Get.back(result: widget.controller.capturedImage);
-            closeOverlays: true,
-            canPop: true,
-            result: widget.controller.capturedImage,
-          );
         }
       }
     } catch (e) {
@@ -711,8 +694,7 @@ class _CapturedSelfieViewState extends State<CapturedSelfieView>
 
       if (mounted && !isDisposed) {
         isComparingWithID.value = false;
-        errorMessage.value =
+        errorMessage.value = 'Failed to process the captured image: $e';
-            'Failed to process the captured image: $e';
       }
     }
   }