part of 'deliveries.dart';

// -------------------------------------------------------------------------
// SCREEN 2: RIDER NAVIGATION (Live tracking + auto-opens Google Maps once)
// -------------------------------------------------------------------------
class _RiderNavigationScreen extends StatefulWidget {
  final Map<String, dynamic> delivery;
  final _MyDeliveriesState? parentState;
  const _RiderNavigationScreen({
    // ignore: unused_element_parameter
    super.key,
    required this.delivery,
    this.parentState,
  });

  @override
  State<_RiderNavigationScreen> createState() => _RiderNavigationScreenState();
}

class _RiderNavigationScreenState extends State<_RiderNavigationScreen>
    with WidgetsBindingObserver {
  GoogleMapController? mapController;
  bool _mapReady = false;
  bool _isDisposed = false;
  Position? _currentPosition;
  StreamSubscription<Position>? _positionStream;
  final Set<Marker> _markers = {};
  late final LatLng dropLocation;
  bool _isInitializing = true;
  bool _hasOpenedGoogleMaps = false;
  Timer? _autoOpenTimer;
  Timer? _pipLoaderTimer;
  bool _showPipExpandLoader = false;
  bool _wasInPipBeforePause = false;
  // ETA timer for full navigation screen (top-right corner)
  final CountDownController _navEtaController = CountDownController();
  int _navEtaRemainingSeconds = 0;
  final DeliveriesController deliveriesController = Get.put(
    DeliveriesController(),
    permanent: true,
  );
  final Floating floating = Floating();

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
    _resolveDropFromDelivery();
    _initializeMap();
    _initEtaForNav();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      _attemptAutoOpenNavigation();
    });
    _autoOpenTimer = Timer(
      const Duration(seconds: 3),
      () => _attemptAutoOpenNavigation(fromTimer: true),
    );
  }

  // Initialize remaining ETA for navigation screen using same persisted end time
  Future<void> _initEtaForNav() async {
    try {
      final prefs = await SharedPreferences.getInstance();
      final orderId = widget.delivery['orderid']?.toString() ??
          widget.delivery['OrderId']?.toString() ??
          '';
      if (orderId.isEmpty) return;

      final endKey = 'eta_endtime_$orderId';
      final endSeconds = prefs.getInt(endKey);
      final nowSeconds = DateTime.now().millisecondsSinceEpoch ~/ 1000;

      int remaining = 0;
      
      // ✅ FIX: Checking (endSeconds > nowSeconds) caused the timer to RESET if user was late.
      // We must trust existing endSeconds even if it's in the past.
      if (endSeconds != null && endSeconds > 0) {
        remaining = endSeconds - nowSeconds;
        debugPrint('[NAV] Loaded saved ETA end time: $endSeconds (Remaining: $remaining)');
      } else {
        // Only start a NEW timer if one doesn't exist
        final rawEta = widget.delivery['eta'];
        int etaMinutes = 0;
        if (rawEta != null) {
          etaMinutes = int.tryParse(rawEta.toString()) ?? 0;
        }
        if (etaMinutes > 0) {
          remaining = etaMinutes * 60;
          final newEndSeconds = nowSeconds + remaining;
          await prefs.setInt(endKey, newEndSeconds);
           debugPrint('[NAV] Saved NEW ETA end time: $newEndSeconds (Remaining: $remaining)');
        }
      }

      if (!mounted) return;
      setState(() {
        _navEtaRemainingSeconds = remaining.clamp(0, 24 * 60 * 60);
      });
    } catch (_) {
      // Ignore errors – timer simply won't show
    }
  }

  @override
  void dispose() {
    _isDisposed = true;
    WidgetsBinding.instance.removeObserver(this);
    _autoOpenTimer?.cancel();
    _pipLoaderTimer?.cancel();
    _positionStream?.cancel();
    super.dispose();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState lifecycleState) {
    if (!mounted) return;

    if (lifecycleState == AppLifecycleState.paused ||
        lifecycleState == AppLifecycleState.inactive) {
      final wasInPip = deliveriesController.isPipEnabled.value;
      _wasInPipBeforePause = wasInPip;
      if (wasInPip) {
        _pipLoaderTimer?.cancel();
        if (mounted) {
          setState(() {
            _showPipExpandLoader = true;
          });
        }
      }
    } else if (lifecycleState == AppLifecycleState.resumed) {
      // When app comes back to foreground, consider PiP session ended.
      deliveriesController.isPipEnabled.value = false;

      // ✅ FIX: Refresh the timer when coming back from PiP/Background
      _initEtaForNav();

      if (_wasInPipBeforePause) {
        _wasInPipBeforePause = false;
        _pipLoaderTimer?.cancel();
        _pipLoaderTimer = Timer(const Duration(milliseconds: 900), () {
          if (!mounted) return;
          setState(() {
            _showPipExpandLoader = false;
          });
        });
      }
    }
  }

  Future<void> enablePip(
    BuildContext context, {
    bool autoEnable = false,
  }) async {
    if (!mounted) return;

    debugPrint('[NAV] Enabling PiP for navigation screen');

    const rational = Rational.landscape();
    final screenSize =
        MediaQuery.of(context).size * MediaQuery.of(context).devicePixelRatio;
    final height = (screenSize.height * 0.5).toInt();
    final width = (screenSize.width * 0.9).toInt();

    final arguments = autoEnable
        ? OnLeavePiP(
            aspectRatio: rational,
            sourceRectHint: math.Rectangle<int>(
              0,
              (screenSize.height ~/ 1) - (height ~/ 1),
              screenSize.width.toInt(),
              height,
            ),
          )
        : ImmediatePiP(
            aspectRatio: rational,
            sourceRectHint: math.Rectangle<int>(
              ((screenSize.width - width) ~/ 2).toInt(),
              ((screenSize.height - height) ~/ 2).toInt(),
              width,
              height,
            ),
          );

    final status = await floating.enable(arguments);
    deliveriesController.isPipEnabled.value = true;
    debugPrint('PiP enabled? $status');
  }

  double _parseD(dynamic v) {
    if (v == null) return 0.0;
    if (v is num) return v.toDouble();
    return double.tryParse(v.toString()) ?? 0.0;
  }

  void _resolveDropFromDelivery() {
    final d = widget.delivery;
    final double dropLat = _parseD(
      d['droplat'] ?? d['DropLat'] ?? d['deliverylat'],
    );
    final double dropLon = _parseD(
      d['droplon'] ?? d['DropLon'] ?? d['deliverylong'],
    );

    dropLocation = (dropLat != 0 && dropLon != 0)
        ? LatLng(dropLat, dropLon)
        : const LatLng(11.018356, 77.012596);
  }

  Future<void> _initializeMap() async {
    try {
      if (mounted) {
        setState(() {
          Geolocator.getLastKnownPosition().then((lastPos) {
            if (lastPos != null && mounted) {
              setState(() {
                _currentPosition = lastPos;
              });
              _addMarkers(LatLng(lastPos.latitude, lastPos.longitude));
              _startLiveTracking();
            }
          });

          if (_currentPosition == null) {
            _currentPosition = Position(
              latitude: dropLocation.latitude,
              longitude: dropLocation.longitude,
              timestamp: DateTime.now(),
              accuracy: 0,
              altitude: 0,
              heading: 0,
              speed: 0,
              speedAccuracy: 0,
              altitudeAccuracy: 0,
              headingAccuracy: 0,
            );

            _addMarkers(dropLocation);
          }

          _isInitializing = false;
        });
      }

      _getCurrentLocation().then((_) {
        _startLiveTracking();
      });
    } catch (e) {
      debugPrint('[NAVIGATION] Error initializing map: $e');
      if (mounted) {
        setState(() {
          if (_currentPosition == null) {
            _currentPosition = Position(
              latitude: dropLocation.latitude,
              longitude: dropLocation.longitude,
              timestamp: DateTime.now(),
              accuracy: 0,
              altitude: 0,
              heading: 0,
              speed: 0,
              speedAccuracy: 0,
              altitudeAccuracy: 0,
              headingAccuracy: 0,
            );

            _addMarkers(dropLocation);
          }

          _isInitializing = false;
        });
      }
    }
  }

  Future<void> _getCurrentLocation() async {
    bool serviceEnabled = await Geolocator.isLocationServiceEnabled();
    if (!serviceEnabled) {
      final lastPos = await Geolocator.getLastKnownPosition();
      if (lastPos != null && mounted) {
        setState(() {
          _currentPosition = lastPos;
          _isInitializing = false;
        });
      }
      Geolocator.openLocationSettings();
      return;
    }

    LocationPermission permission = await Geolocator.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await Geolocator.requestPermission();
    }

    if (permission == LocationPermission.deniedForever ||
        permission == LocationPermission.denied) {
      final lastPos = await Geolocator.getLastKnownPosition();
      if (lastPos != null && mounted) {
        setState(() {
          _currentPosition = lastPos;
          _isInitializing = false;
        });
        _addMarkers(LatLng(lastPos.latitude, lastPos.longitude));
      } else if (mounted) {
        setState(() => _isInitializing = false);
      }
      return;
    }

    Position? pos;
    try {
      pos = await Geolocator.getCurrentPosition(
        desiredAccuracy: LocationAccuracy.medium,
        timeLimit: const Duration(seconds: 5),
      ).timeout(const Duration(seconds: 5));
    } catch (e) {
      debugPrint('[NAVIGATION] Timeout getting position, using last known: $e');
      pos = await Geolocator.getLastKnownPosition();
    }

    if (pos != null && mounted) {
      setState(() {
        _currentPosition = pos;
        _isInitializing = false;
      });
      _addMarkers(LatLng(pos.latitude, pos.longitude));
    } else if (mounted) {
      setState(() => _isInitializing = false);
    }
  }

  void _startLiveTracking() {
    _positionStream =
        Geolocator.getPositionStream(
          locationSettings: const LocationSettings(
            accuracy: LocationAccuracy.bestForNavigation,
            distanceFilter: 5,
          ),
        ).listen((Position position) {
          if (mounted) {
            setState(() {
              _currentPosition = position;
            });
            _addMarkers(LatLng(position.latitude, position.longitude));

            final distance = Geolocator.distanceBetween(
              position.latitude,
              position.longitude,
              dropLocation.latitude,
              dropLocation.longitude,
            );
            deliveriesController.deliverableDistance.value = distance;

            _safeAnimateCamera(
              CameraUpdate.newCameraPosition(
                CameraPosition(
                  target: LatLng(position.latitude, position.longitude),
                  zoom: 16.5,
                  tilt: 45,
                ),
              ),
            );
          }
        });
  }

  void _addMarkers(LatLng riderPos) {
    _markers
      ..clear()
      ..add(
        Marker(
          markerId: const MarkerId('rider'),
          position: riderPos,
          icon: BitmapDescriptor.defaultMarkerWithHue(
            BitmapDescriptor.hueAzure,
          ),
          infoWindow: const InfoWindow(title: 'You (Rider)'),
        ),
      )
      ..add(
        Marker(
          markerId: const MarkerId('drop'),
          position: dropLocation,
          icon: BitmapDescriptor.defaultMarkerWithHue(BitmapDescriptor.hueRed),
          infoWindow: const InfoWindow(title: 'Drop Location'),
        ),
      );
  }

  Future<void> _attemptAutoOpenNavigation({bool fromTimer = false}) async {
    if (!mounted || _hasOpenedGoogleMaps) return;
    final bool opened = await _openGoogleMapsNavigation();
    if (!opened && fromTimer) {
      debugPrint('[NAVIGATION] Auto open failed, waiting for manual trigger');
    }
  }

  Future<bool> _openGoogleMapsNavigation() async {
    if (!mounted) return false;
    if (_hasOpenedGoogleMaps) return true;
    try {
      if (Platform.isAndroid) {
        try {
          // ✅ CRITICAL: ENFORCE PiP when starting navigation (compulsory for active deliveries)
          final dc = Get.put(DeliveriesController(), permanent: true);

          // Enable PiP using floating package (primary)
          if (!dc.isPipEnabled.value) {
            await enablePip(context);
            // Wait a moment for PiP to activate
            await Future.delayed(const Duration(milliseconds: 300));

            // Also tell native side (if available) – best-effort
            const channel = MethodChannel('nearle/pip');
            try {
              await channel.invokeMethod<bool>('enterPip');
            } catch (_) {}

            dc.isPipEnabled.value = true;
          }
        } on PlatformException catch (e) {
          debugPrint('[NAV] Method channel PiP failed: ${e.message}');
        } catch (e) {
          debugPrint('[NAV] Error enabling PiP: $e');
        }
      }
      Position? currentPos;
      try {
        currentPos = await Geolocator.getLastKnownPosition();
      } catch (_) {}

      if (currentPos == null) {
        try {
          currentPos = await Geolocator.getCurrentPosition(
            desiredAccuracy: LocationAccuracy.medium,
            timeLimit: const Duration(seconds: 2),
          );
        } catch (_) {}
      }

      final originLat = currentPos?.latitude ?? dropLocation.latitude;
      final originLng = currentPos?.longitude ?? dropLocation.longitude;
      final destLat = dropLocation.latitude;
      final destLng = dropLocation.longitude;

      final Uri nativeUri = Uri.parse(
        'google.navigation:q=$destLat,$destLng&mode=d',
      );
      final Uri webUri = Uri.parse(
        'https://www.google.com/maps/dir/?api=1'
        '&origin=$originLat,$originLng'
        '&destination=$destLat,$destLng'
        '&travelmode=driving'
        '&dir_action=navigate',
      );

      // Try native intent first without relying on canLaunch (can be flaky)
      bool launched = false;

      try {
        launched = await launchUrl(
          nativeUri,
          mode: LaunchMode.externalApplication,
        );
      } catch (e) {
        debugPrint('[NAVIGATION] Native intent failed: $e');
      }

      if (!launched) {
        try {
          launched = await launchUrl(
            webUri,
            mode: LaunchMode.externalApplication,
          );
        } catch (e) {
          debugPrint('[NAVIGATION] Web intent failed: $e');
        }
      }

      if (launched && mounted) {
        setState(() {
          _hasOpenedGoogleMaps = true;
        });
        debugPrint('[NAVIGATION] Opened Google Maps');
        return true;
      }

      debugPrint('[NAVIGATION] Could not open Google Maps');
    } catch (e) {
      debugPrint('[NAVIGATION] Error opening Google Maps: $e');
    }
    return false;
  }

  @override
  Widget build(BuildContext context) {
    return Obx(() {
      if (deliveriesController.isPipEnabled.value) {
        final rawEta = widget.delivery['eta'];
        int etaMinutes = 0;
        if (rawEta != null) {
          etaMinutes = int.tryParse(rawEta.toString()) ?? 0;
        }

        return PipInfoCard(
          orderId: widget.delivery['orderid']?.toString() ??
              widget.delivery['OrderId']?.toString() ??
              'N/A',
          etaMinutes: etaMinutes,
        );
      }

      return Scaffold(
        body: Stack(
          children: [
            GoogleMap(
              mapType: MapType.normal,
              onMapCreated: (controller) {
                mapController = controller;
                _mapReady = true;
              },
              initialCameraPosition: CameraPosition(
                target: LatLng(
                  _currentPosition?.latitude ?? dropLocation.latitude,
                  _currentPosition?.longitude ?? dropLocation.longitude,
                ),
                zoom: 15,
                tilt: 45,
              ),
              markers: _markers,
              myLocationEnabled: true,
              myLocationButtonEnabled: false,
              trafficEnabled: true,
              compassEnabled: true,
              buildingsEnabled: true,
              tiltGesturesEnabled: true,
            ),
            if (!_hasOpenedGoogleMaps)
              Positioned(
                top: 50,
                left: 0,
                right: 0,
                child: Center(
                  child: Container(
                    padding: const EdgeInsets.symmetric(
                      horizontal: 20,
                      vertical: 12,
                    ),
                    decoration: BoxDecoration(
                      color: ColorConstants.primaryColor,
                      borderRadius: BorderRadius.circular(25),
                      boxShadow: [
                        BoxShadow(
                          color: Colors.black.withOpacity(0.2),
                          blurRadius: 8,
                          offset: const Offset(0, 2),
                        ),
                      ],
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        const SizedBox(
                          width: 20,
                          height: 20,
                          child: CircularProgressIndicator(
                            strokeWidth: 2,
                            valueColor: AlwaysStoppedAnimation<Color>(
                              Colors.white,
                            ),
                          ),
                        ),
                        const SizedBox(width: 12),
                        Text(
                          'Opening Google Maps...',
                          style: TextStyle(
                            color: Colors.white,
                            fontSize: 16,
                            fontWeight: FontWeight.bold,
                            fontFamily: FontConstants.fontFamily,
                          ),
                        ),
                      ],
                    ),
                  ),
                ),
              ),
            Positioned(
              top: _hasOpenedGoogleMaps ? 50 : 120,
              left: 16,
              child: CircleAvatar(
                backgroundColor: Colors.white,
                child: IconButton(
                  icon: const Icon(Icons.arrow_back, color: Colors.black),
                  onPressed: () {
                    _autoOpenTimer?.cancel();
                    // Navigate back to BottomPage on Deliveries tab
                    Get.offAll(() => const BottomPage(initialIndex: 1));
                  },
                ),
              ),
            ),
            if (_hasOpenedGoogleMaps)
              Positioned(
                top: 50,
                right: 16,
                child: CircleAvatar(
                  backgroundColor: Colors.white,
                  child: IconButton(
                    icon: const Icon(Icons.navigation, color: Colors.blue),
                    onPressed: () async {
                      await _openGoogleMapsNavigation();
                    },
                    tooltip: 'Open Google Maps',
                  ),
                ),
              ),
            // Small real-time ETA timer on top-right in full navigation (not in PiP)
            if (!deliveriesController.isPipEnabled.value &&
                _navEtaRemainingSeconds > 0)
              Positioned(
                top: 110,
                right: 16,
                child: Container(
                  padding:
                      const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.circular(20),
                    boxShadow: [
                      BoxShadow(
                        color: Colors.black.withOpacity(0.15),
                        blurRadius: 4,
                        offset: const Offset(0, 2),
                      ),
                    ],
                  ),
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      SizedBox(
                        width: 32,
                        height: 32,
                        child: CircularCountDownTimer(
                          key: ValueKey('nav_timer_$_navEtaRemainingSeconds'), // Force rebuild if duration changes significantly
                          duration: _navEtaRemainingSeconds,
                          initialDuration: 0,
                          controller: _navEtaController,
                          width: 32,
                          height: 32,
                          ringColor: ColorConstants.primaryColor
                              .withValues(alpha: 0.15),
                          fillColor: ColorConstants.primaryColor,
                          backgroundColor: Colors.white,
                          strokeWidth: 3,
                          strokeCap: StrokeCap.round,
                          textStyle: TextStyle(
                            fontSize: 10,
                            fontWeight: FontWeight.bold,
                            color: ColorConstants.primaryColor,
                            fontFamily: FontConstants.fontFamily,
                          ),
                          isReverse: true,
                          isReverseAnimation: true,
                          isTimerTextShown: true,
                          autoStart: true,
                          timeFormatterFunction:
                              (defaultFormatter, duration) {
                            return duration.inSeconds <= 0
                                ? 'Out'
                                : defaultFormatter(duration);
                          },
                        ),
                      ),
                      const SizedBox(width: 6),
                      Text(
                        'ETA',
                        style: TextStyle(
                          fontSize: 11,
                          fontWeight: FontWeight.w600,
                          fontFamily: FontConstants.fontFamily,
                          color: Colors.black87,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            Align(
              alignment: Alignment.bottomCenter,
              child: Container(
                width: double.infinity,
                padding: const EdgeInsets.all(16),
                decoration: const BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
                  boxShadow: [
                    BoxShadow(
                      color: Colors.black26,
                      blurRadius: 8,
                      offset: Offset(0, -2),
                    ),
                  ],
                ),
                child: SafeArea(
                  top: false,
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        children: [
                          Text(
                            'Customer Details',
                            style: TextStyle(
                              fontSize: 22,
                              fontWeight: FontWeight.bold,
                              fontFamily: FontConstants.fontFamily,
                            ),
                          ),
                          InkWell(
                            onTap: () async {
                              // Enable PiP mode first before launching dialer
                              if (!deliveriesController.isPipEnabled.value) {
                                await enablePip(context);
                                // Wait a moment for PiP to activate
                                await Future.delayed(
                                  const Duration(milliseconds: 300),
                                );
                              }

                              final phone =
                                  (widget.delivery['deliverycontactno'] ?? '')
                                      .toString();
                              final bool success = await launchPhoneDialer(
                                phone.isNotEmpty ? phone : '9876543210',
                              );
                              if (!success && context.mounted) {
                                ScaffoldMessenger.of(context).showSnackBar(
                                  const SnackBar(
                                    content: Text('Could not launch dialer'),
                                  ),
                                );
                              }
                            },
                            child: Image.asset(
                              'assets/images/phone-call .png',
                              height: 27,
                              width: 27,
                              errorBuilder: (c, e, s) => const Icon(
                                Icons.phone,
                                size: 27,
                                color: Colors.green,
                              ),
                            ),
                          ),
                        ],
                      ),
                      const SizedBox(height: 10),
                      const Divider(thickness: 1.5),
                      const SizedBox(height: 10),
                      _buildCustomerInfo(),
                      const SizedBox(height: 20),
                      Row(
                        children: [
                          Expanded(
                            child: ElevatedButton(
                              style: ElevatedButton.styleFrom(
                                backgroundColor: Colors.blue,
                                minimumSize: const Size(0, 48),
                                shape: RoundedRectangleBorder(
                                  borderRadius: BorderRadius.circular(12),
                                ),
                              ),
                              onPressed: () async {
                                // Optimize: Run PiP enable and Prefs saving in parallel
                                final d = widget.delivery;
                                final double? lat = double.tryParse("${d['droplat']}");
                                final double? lng = double.tryParse("${d['droplon']}");

                                if (lat == null || lng == null) {
                                  debugPrint("[RIDE] Invalid drop location");
                                  return;
                                }

                                final prefsFuture = SharedPreferences.getInstance().then((prefs) async {
                                  await prefs.setString("drop_lat", lat.toString());
                                  await prefs.setString("drop_lng", lng.toString());
                                });

                                // PiP Logic
                                if (!deliveriesController.isPipEnabled.value) {
                                  try {
                                    debugPrint('[NAV] Enforcing PiP before Ride button');
                                    // Don't await extremely long, just enough to start transition
                                    await enablePip(context);
                                    await Future.delayed(const Duration(milliseconds: 150));
                                  } catch (e) {
                                    debugPrint('[NAV] Error enabling PiP: $e');
                                  }
                                }

                                // Construct URL (Map uses current location by default if origin not specified)
                                final String url = "https://www.google.com/maps/dir/?api=1&destination=$lat,$lng&travelmode=driving";
                                final Uri uri = Uri.parse(url);

                                // Fire and forget prefs
                                prefsFuture.ignore();

                                try {
                                  // Direct launch is faster and avoids package visibility queries
                                  await launchUrl(uri, mode: LaunchMode.externalApplication);
                                  debugPrint("[RIDE] Opening Google Maps...");
                                } catch (e) {
                                  debugPrint("[RIDE] Could not launch Maps: $e");
                                }
                              },
                              child: Text(
                                'Ride',
                                style: TextStyle(
                                  fontSize: 20,
                                  fontWeight: FontWeight.bold,
                                  color: Colors.white,
                                ),
                              ),
                            ),
                          ),

                          SizedBox(width: 12), // space between buttons

                          Expanded(
                            child: ElevatedButton(
                              style: ElevatedButton.styleFrom(
                                backgroundColor: ColorConstants.primaryColor,
                                minimumSize: const Size(
                                  0,
                                  48,
                                ), // FIX: no infinity width
                                shape: RoundedRectangleBorder(
                                  borderRadius: BorderRadius.circular(12),
                                ),
                              ),
                              onPressed: () async {
                                final result = await showModalBottomSheet(
                                  context: context,
                                  isScrollControlled: true,
                                  shape: const RoundedRectangleBorder(
                                    borderRadius: BorderRadius.vertical(
                                      top: Radius.circular(20),
                                    ),
                                  ),
                                  builder: (context) => _DeliveryBottomSheet(
                                    delivery: widget.delivery,
                                    parentState: widget.parentState,
                                  ),
                                );

                                if (result == true) {
                                  // ✅ If delivery updated/skipped, close navigation screen immediately
                                  if (mounted && Navigator.canPop(context)) {
                                     Navigator.pop(context);
                                  }
                                }
                              },
                              child: Text(
                                'Update',
                                style: TextStyle(
                                  fontSize: 20,
                                  fontWeight: FontWeight.bold,
                                  color: Colors.white,
                                ),
                              ),
                            ),
                          ),
                        ],
                      ),
                    ],
                  ),
                ),
              ),
            ),
            if (_showPipExpandLoader)
              Positioned.fill(
                child: Container(
                  color: Colors.black.withOpacity(0.45),
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: [
                      const SizedBox(
                        width: 56,
                        height: 56,
                        child: CircularProgressIndicator(
                          strokeWidth: 4,
                          valueColor: AlwaysStoppedAnimation<Color>(
                            Colors.white,
                          ),
                        ),
                      ),
                      const SizedBox(height: 16),
                      Text(
                        'Restoring full view...',
                        style: TextStyle(
                          color: Colors.white,
                          fontSize: 18,
                          fontWeight: FontWeight.w600,
                          fontFamily: FontConstants.fontFamily,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
          ],
        ),
      );
    });
  }

  Widget _buildCustomerInfo() {
    final rawCollection = widget.delivery['collectionamt'];
    double collectionAmt = 0.0;
    if (rawCollection != null) {
      if (rawCollection is num) {
        collectionAmt = rawCollection.toDouble();
      } else {
        collectionAmt = double.tryParse(rawCollection.toString()) ?? 0.0;
      }
    }

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        _buildInfoRow(
          'Name:',
          (widget.delivery['deliverycustomer'] ?? 'Customer').toString(),
        ),
        const SizedBox(height: 10),
        _buildInfoRow(
          'Address:',
          (widget.delivery['deliveryaddress'] ?? 'Address not available')
              .toString(),
          isExpanded: true,
        ),
        const SizedBox(height: 10),
        _buildInfoRow(
          'Order ID:',
          '#${(widget.delivery['orderid'] ?? '').toString()}',
        ),
        if (collectionAmt > 0) ...[
          const SizedBox(height: 10),
          _buildInfoRow(
            'To Collect:',
            '₹${collectionAmt.toStringAsFixed(0)}',
          ),
        ],
      ],
    );
  }

  Widget _buildInfoRow(String label, String value, {bool isExpanded = false}) {
    return Row(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(
          label,
          style: TextStyle(
            fontSize: 20,
            fontWeight: FontWeight.w600,
            fontFamily: FontConstants.fontFamily,
          ),
        ),
        const SizedBox(width: 15),
        isExpanded
            ? Expanded(
                child: Text(
                  value,
                  maxLines: 2,
                  overflow: TextOverflow.ellipsis,
                  style: TextStyle(
                    fontSize: 18,
                    fontFamily: FontConstants.fontFamily,
                    color: Colors.black87,
                  ),
                ),
              )
            : Text(
                value,
                style: TextStyle(
                  fontSize: 18,
                  fontFamily: FontConstants.fontFamily,
                  color: Colors.black87,
                ),
              ),
      ],
    );
  }

  void _safeAnimateCamera(CameraUpdate update) {
    if (!_mapReady || _isDisposed || mapController == null) return;
    try {
      mapController?.animateCamera(update);
    } catch (e) {
      debugPrint('[NAVIGATION] animateCamera skipped: $e');
    }
  }
}