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https://github.com/FoggedLens/deflock-app.git
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UX bones
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stopflock
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import 'package:flutter/material.dart';
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import 'package:latlong2/latlong.dart';
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import '../models/search_result.dart';
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import '../services/search_service.dart';
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/// Navigation modes for routing and search functionality
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enum AppNavigationMode {
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normal, // Default state - normal map view
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search, // Search box visible, provisional pin active
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searchInput, // Keyboard open, UI elements hidden
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routeSetup, // Placing second pin for routing
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routeCalculating, // Computing route with loading indicator
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routePreview, // Route ready, showing start/cancel options
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routeActive, // Following an active route
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routeOverview, // Viewing active route overview
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}
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/// Manages all navigation, search, and routing state
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class NavigationState extends ChangeNotifier {
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final SearchService _searchService = SearchService();
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AppNavigationMode _mode = AppNavigationMode.normal;
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// Search state
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bool _isSearchLoading = false;
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List<SearchResult> _searchResults = [];
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String _lastQuery = '';
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List<String> _searchHistory = [];
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// Provisional pin state (for route planning)
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LatLng? _provisionalPinLocation;
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String? _provisionalPinAddress;
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// Route state
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LatLng? _routeStart;
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LatLng? _routeEnd;
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String? _routeStartAddress;
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String? _routeEndAddress;
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List<LatLng>? _routePath;
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double? _routeDistance;
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bool _settingRouteStart = true; // true = setting start, false = setting end
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// Getters
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AppNavigationMode get mode => _mode;
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bool get isSearchLoading => _isSearchLoading;
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List<SearchResult> get searchResults => List.unmodifiable(_searchResults);
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String get lastQuery => _lastQuery;
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List<String> get searchHistory => List.unmodifiable(_searchHistory);
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LatLng? get provisionalPinLocation => _provisionalPinLocation;
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String? get provisionalPinAddress => _provisionalPinAddress;
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LatLng? get routeStart => _routeStart;
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LatLng? get routeEnd => _routeEnd;
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String? get routeStartAddress => _routeStartAddress;
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String? get routeEndAddress => _routeEndAddress;
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List<LatLng>? get routePath => _routePath != null ? List.unmodifiable(_routePath!) : null;
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double? get routeDistance => _routeDistance;
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bool get settingRouteStart => _settingRouteStart;
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// Convenience getters
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bool get isInSearchMode => _mode == AppNavigationMode.search || _mode == AppNavigationMode.searchInput;
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bool get isInRouteMode => _mode == AppNavigationMode.routeSetup ||
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_mode == AppNavigationMode.routeCalculating ||
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_mode == AppNavigationMode.routePreview ||
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_mode == AppNavigationMode.routeActive ||
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_mode == AppNavigationMode.routeOverview;
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bool get hasActiveRoute => _routePath != null;
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bool get showProvisionalPin => _provisionalPinLocation != null &&
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(_mode == AppNavigationMode.search ||
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_mode == AppNavigationMode.routeSetup);
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/// Enter search mode with provisional pin at current map center
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void enterSearchMode(LatLng mapCenter) {
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if (_mode != AppNavigationMode.normal) return;
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_mode = AppNavigationMode.search;
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_provisionalPinLocation = mapCenter;
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_provisionalPinAddress = null;
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_clearSearchResults();
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debugPrint('[NavigationState] Entered search mode at $mapCenter');
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notifyListeners();
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}
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/// Enter search input mode (keyboard open)
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void enterSearchInputMode() {
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if (_mode != AppNavigationMode.search) return;
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_mode = AppNavigationMode.searchInput;
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debugPrint('[NavigationState] Entered search input mode');
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notifyListeners();
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}
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/// Exit search input mode back to search
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void exitSearchInputMode() {
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if (_mode != AppNavigationMode.searchInput) return;
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_mode = AppNavigationMode.search;
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debugPrint('[NavigationState] Exited search input mode');
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notifyListeners();
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}
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/// Cancel search mode and return to normal
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void cancelSearchMode() {
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if (!isInSearchMode && _mode != AppNavigationMode.routeSetup) return;
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_mode = AppNavigationMode.normal;
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_provisionalPinLocation = null;
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_provisionalPinAddress = null;
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_clearSearchResults();
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debugPrint('[NavigationState] Cancelled search mode');
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notifyListeners();
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}
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/// Update provisional pin location (when map moves during search)
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void updateProvisionalPinLocation(LatLng newLocation) {
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if (!showProvisionalPin) return;
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_provisionalPinLocation = newLocation;
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// Clear address since location changed
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_provisionalPinAddress = null;
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notifyListeners();
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}
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/// Jump to search result and update provisional pin
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void selectSearchResult(SearchResult result) {
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if (!isInSearchMode) return;
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_provisionalPinLocation = result.coordinates;
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_provisionalPinAddress = result.displayName;
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_mode = AppNavigationMode.search; // Exit search input mode
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_clearSearchResults();
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debugPrint('[NavigationState] Selected search result: ${result.displayName}');
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notifyListeners();
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}
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/// Start route setup (user clicked "route to" or "route from")
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void startRouteSetup({required bool settingStart}) {
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if (_mode != AppNavigationMode.search || _provisionalPinLocation == null) return;
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_settingRouteStart = settingStart;
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if (settingStart) {
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_routeStart = _provisionalPinLocation;
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_routeStartAddress = _provisionalPinAddress;
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} else {
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_routeEnd = _provisionalPinLocation;
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_routeEndAddress = _provisionalPinAddress;
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}
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_mode = AppNavigationMode.routeSetup;
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// Keep provisional pin active for second location
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debugPrint('[NavigationState] Started route setup (setting ${settingStart ? 'start' : 'end'})');
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notifyListeners();
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}
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/// Lock in second route location
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void selectRouteLocation() {
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if (_mode != AppNavigationMode.routeSetup || _provisionalPinLocation == null) return;
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if (_settingRouteStart) {
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_routeStart = _provisionalPinLocation;
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_routeStartAddress = _provisionalPinAddress;
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} else {
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_routeEnd = _provisionalPinLocation;
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_routeEndAddress = _provisionalPinAddress;
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}
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// Start route calculation
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_calculateRoute();
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}
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/// Calculate route (mock implementation for now)
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void _calculateRoute() {
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if (_routeStart == null || _routeEnd == null) return;
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_mode = AppNavigationMode.routeCalculating;
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notifyListeners();
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// Mock route calculation with delay
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Future.delayed(const Duration(seconds: 2), () {
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if (_mode != AppNavigationMode.routeCalculating) return;
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// Create simple straight line route for now
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_routePath = [_routeStart!, _routeEnd!];
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_routeDistance = const Distance().as(LengthUnit.Meter, _routeStart!, _routeEnd!);
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_mode = AppNavigationMode.routePreview;
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_provisionalPinLocation = null; // Hide provisional pin
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debugPrint('[NavigationState] Route calculated: ${_routeDistance! / 1000.0} km');
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notifyListeners();
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});
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}
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/// Start following the route
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void startRoute() {
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if (_mode != AppNavigationMode.routePreview || _routePath == null) return;
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_mode = AppNavigationMode.routeActive;
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debugPrint('[NavigationState] Started route following');
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notifyListeners();
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}
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/// View route overview (from route button during active route)
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void viewRouteOverview() {
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if (_mode != AppNavigationMode.routeActive || _routePath == null) return;
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_mode = AppNavigationMode.routeOverview;
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debugPrint('[NavigationState] Viewing route overview');
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notifyListeners();
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}
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/// Return to active route from overview
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void returnToActiveRoute() {
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if (_mode != AppNavigationMode.routeOverview) return;
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_mode = AppNavigationMode.routeActive;
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debugPrint('[NavigationState] Returned to active route');
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notifyListeners();
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}
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/// Cancel route and return to normal mode
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void cancelRoute() {
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if (!isInRouteMode) return;
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_mode = AppNavigationMode.normal;
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_routeStart = null;
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_routeEnd = null;
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_routeStartAddress = null;
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_routeEndAddress = null;
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_routePath = null;
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_routeDistance = null;
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_provisionalPinLocation = null;
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_provisionalPinAddress = null;
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debugPrint('[NavigationState] Cancelled route');
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notifyListeners();
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}
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/// Search functionality (delegates to existing search service)
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Future<void> search(String query) async {
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if (query.trim().isEmpty) {
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_clearSearchResults();
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return;
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}
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if (query.trim() == _lastQuery.trim()) return;
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_setSearchLoading(true);
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_lastQuery = query.trim();
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try {
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final results = await _searchService.search(query.trim());
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_searchResults = results;
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debugPrint('[NavigationState] Found ${results.length} results for "$query"');
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} catch (e) {
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debugPrint('[NavigationState] Search failed: $e');
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_searchResults = [];
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}
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_setSearchLoading(false);
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}
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/// Clear search results
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void clearSearchResults() {
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_clearSearchResults();
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}
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void _clearSearchResults() {
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if (_searchResults.isNotEmpty || _lastQuery.isNotEmpty) {
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_searchResults = [];
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_lastQuery = '';
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notifyListeners();
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}
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}
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void _setSearchLoading(bool loading) {
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if (_isSearchLoading != loading) {
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_isSearchLoading = loading;
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notifyListeners();
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}
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}
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}
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