@@ -47,21 +47,25 @@ class NavigationService {
|
||||
final response = await http.get(Uri.parse(url));
|
||||
|
||||
if (response.statusCode == 200) {
|
||||
final data = jsonDecode(response.body) as Map<String, dynamic>;
|
||||
|
||||
if (data['code'] != 'Ok') {
|
||||
throw Exception('Route not found: ${data['message']}');
|
||||
final data = jsonDecode(response.body) as Map<String, dynamic>?;
|
||||
if (data == null) {
|
||||
throw Exception('Empty response from routing service');
|
||||
}
|
||||
|
||||
final route = NavigationRoute.fromJson(data);
|
||||
if (data['code'] != 'Ok') {
|
||||
throw Exception('Route not found: ${data['message'] ?? 'Unknown error'}');
|
||||
}
|
||||
|
||||
// Set start and end points properly
|
||||
return NavigationRoute(
|
||||
final routes = data['routes'] as List?;
|
||||
if (routes == null || routes.isEmpty) {
|
||||
throw Exception('No route found in response');
|
||||
}
|
||||
|
||||
final routeData = routes.first as Map<String, dynamic>;
|
||||
return NavigationRoute.fromOsrmRouteData(
|
||||
routeData,
|
||||
start: start,
|
||||
end: end,
|
||||
legs: route.legs,
|
||||
totalDistance: route.totalDistance,
|
||||
totalDuration: route.totalDuration,
|
||||
);
|
||||
} else {
|
||||
throw Exception('Failed to get route: ${response.statusCode}');
|
||||
@@ -71,6 +75,144 @@ class NavigationService {
|
||||
}
|
||||
}
|
||||
|
||||
/// Get a route that passes through the provided stops in the given order.
|
||||
Future<NavigationRoute> getRouteThroughStops({
|
||||
required List<NavigationPoint> stops,
|
||||
}) async {
|
||||
try {
|
||||
if (stops.length < 2) {
|
||||
throw Exception('At least two stops are required');
|
||||
}
|
||||
|
||||
final coordinates = stops
|
||||
.map((stop) => '${stop.longitude},${stop.latitude}')
|
||||
.join(';');
|
||||
final url =
|
||||
'$_osrmBaseUrl/$coordinates?overview=full&steps=true&geometries=geojson&source=first&destination=last';
|
||||
|
||||
final response = await http.get(Uri.parse(url));
|
||||
|
||||
if (response.statusCode != 200) {
|
||||
throw Exception('Failed to get route: ${response.statusCode}');
|
||||
}
|
||||
|
||||
final data = jsonDecode(response.body) as Map<String, dynamic>?;
|
||||
if (data == null) {
|
||||
throw Exception('Empty response from routing service');
|
||||
}
|
||||
|
||||
if (data['code'] != 'Ok') {
|
||||
throw Exception('Route not found: ${data['message'] ?? 'Unknown error'}');
|
||||
}
|
||||
|
||||
final routes = data['routes'] as List?;
|
||||
if (routes == null || routes.isEmpty) {
|
||||
throw Exception('No route found in response');
|
||||
}
|
||||
|
||||
final routeData = routes.first as Map<String, dynamic>;
|
||||
return NavigationRoute.fromOsrmRouteData(
|
||||
routeData,
|
||||
start: stops.first,
|
||||
end: stops.last,
|
||||
);
|
||||
} catch (e) {
|
||||
throw Exception('Navigation error: $e');
|
||||
}
|
||||
}
|
||||
|
||||
/// Get an optimized trip through multiple stops.
|
||||
/// Keeps the first and last stops fixed and lets OSRM order the intermediates.
|
||||
Future<OptimizedRouteResult> getOptimizedRouteThroughStops({
|
||||
required List<NavigationPoint> stops,
|
||||
}) async {
|
||||
try {
|
||||
if (stops.length < 2) {
|
||||
throw Exception('At least two stops are required');
|
||||
}
|
||||
|
||||
final coordinates = stops
|
||||
.map((stop) => '${stop.longitude},${stop.latitude}')
|
||||
.join(';');
|
||||
final url =
|
||||
'https://router.project-osrm.org/trip/v1/car/$coordinates?overview=full&steps=true&geometries=geojson&source=first&destination=last&roundtrip=false';
|
||||
|
||||
final response = await http.get(Uri.parse(url));
|
||||
|
||||
if (response.statusCode != 200) {
|
||||
throw Exception('Failed to get optimized route: ${response.statusCode}');
|
||||
}
|
||||
|
||||
final data = jsonDecode(response.body) as Map<String, dynamic>?;
|
||||
if (data == null) {
|
||||
throw Exception('Empty response from routing service');
|
||||
}
|
||||
|
||||
if (data['code'] != 'Ok') {
|
||||
throw Exception('Optimized route not found: ${data['message'] ?? 'Unknown error'}');
|
||||
}
|
||||
|
||||
final trips = data['trips'] as List?;
|
||||
if (trips == null || trips.isEmpty) {
|
||||
throw Exception('No optimized trip found');
|
||||
}
|
||||
|
||||
final trip = trips.first as Map<String, dynamic>;
|
||||
final geometry = trip['geometry'] as Map<String, dynamic>?;
|
||||
final coordinatesData = geometry?['coordinates'] as List? ?? [];
|
||||
final points = coordinatesData
|
||||
.map((coord) {
|
||||
if (coord is List && coord.length >= 2) {
|
||||
return NavigationPoint(
|
||||
latitude: (coord[1] as num).toDouble(),
|
||||
longitude: (coord[0] as num).toDouble(),
|
||||
);
|
||||
}
|
||||
return null;
|
||||
})
|
||||
.whereType<NavigationPoint>()
|
||||
.toList();
|
||||
|
||||
final waypointItems = (data['waypoints'] as List?) ?? [];
|
||||
final orderedPairs = <MapEntry<int, NavigationPoint>>[];
|
||||
|
||||
for (var i = 0; i < waypointItems.length && i < stops.length; i++) {
|
||||
final waypoint = waypointItems[i];
|
||||
if (waypoint is! Map<String, dynamic>) continue;
|
||||
final index = waypoint['waypoint_index'] as num?;
|
||||
if (index == null) continue;
|
||||
orderedPairs.add(MapEntry(index.toInt(), stops[i]));
|
||||
}
|
||||
|
||||
orderedPairs.sort((a, b) => a.key.compareTo(b.key));
|
||||
final orderedStops = orderedPairs.isNotEmpty
|
||||
? orderedPairs.map((entry) => entry.value).toList()
|
||||
: stops;
|
||||
|
||||
final route = NavigationRoute(
|
||||
start: orderedStops.first,
|
||||
end: orderedStops.last,
|
||||
legs: [
|
||||
RouteLeg.fromPoints(
|
||||
points: points,
|
||||
distance: (trip['distance'] as num?)?.toDouble() ?? 0.0,
|
||||
duration: (trip['duration'] as num?)?.toInt() ?? 0,
|
||||
summary: 'Optimized trip',
|
||||
),
|
||||
],
|
||||
totalDistance: (trip['distance'] as num?)?.toDouble() ?? 0.0,
|
||||
totalDuration: (trip['duration'] as num?)?.toInt() ?? 0,
|
||||
);
|
||||
|
||||
return OptimizedRouteResult(
|
||||
route: route,
|
||||
orderedStops: orderedStops.isNotEmpty ? orderedStops : stops,
|
||||
);
|
||||
} catch (e) {
|
||||
throw Exception('Navigation error: $e');
|
||||
}
|
||||
}
|
||||
|
||||
/// Get multiple routes (alternatives)
|
||||
Future<List<NavigationRoute>> getMultipleRoutes({
|
||||
required NavigationPoint start,
|
||||
@@ -86,26 +228,30 @@ class NavigationService {
|
||||
final response = await http.get(Uri.parse(url));
|
||||
|
||||
if (response.statusCode == 200) {
|
||||
final data = jsonDecode(response.body) as Map<String, dynamic>;
|
||||
|
||||
if (data['code'] != 'Ok') {
|
||||
throw Exception('Routes not found: ${data['message']}');
|
||||
final data = jsonDecode(response.body) as Map<String, dynamic>?;
|
||||
if (data == null) {
|
||||
throw Exception('Empty response from routing service');
|
||||
}
|
||||
|
||||
final routes = (data['routes'] as List)
|
||||
if (data['code'] != 'Ok') {
|
||||
throw Exception('Routes not found: ${data['message'] ?? 'Unknown error'}');
|
||||
}
|
||||
|
||||
final routesData = data['routes'] as List?;
|
||||
if (routesData == null || routesData.isEmpty) {
|
||||
throw Exception('No routes found in response');
|
||||
}
|
||||
|
||||
final routes = routesData
|
||||
.map((routeData) {
|
||||
return NavigationRoute(
|
||||
if (routeData is! Map<String, dynamic>) return null;
|
||||
return NavigationRoute.fromOsrmRouteData(
|
||||
routeData,
|
||||
start: start,
|
||||
end: end,
|
||||
legs: (routeData['legs'] as List)
|
||||
.map((leg) =>
|
||||
RouteLeg.fromJson(leg as Map<String, dynamic>))
|
||||
.toList(),
|
||||
totalDistance:
|
||||
(routeData['distance'] as num).toDouble(),
|
||||
totalDuration: (routeData['duration'] as num).toInt(),
|
||||
);
|
||||
})
|
||||
.whereType<NavigationRoute>()
|
||||
.toList();
|
||||
|
||||
return routes;
|
||||
@@ -125,4 +271,37 @@ class NavigationService {
|
||||
LatLng(p2.latitude, p2.longitude),
|
||||
);
|
||||
}
|
||||
|
||||
/// Geocode a place name to coordinates using Nominatim (OpenStreetMap)
|
||||
Future<NavigationPoint> geocodePlace(String name) async {
|
||||
try {
|
||||
final uri = Uri.https('nominatim.openstreetmap.org', '/search', {
|
||||
'q': name,
|
||||
'format': 'json',
|
||||
'limit': '1',
|
||||
});
|
||||
|
||||
final response = await http.get(uri, headers: {
|
||||
'User-Agent': 'bus-terminal-app',
|
||||
});
|
||||
|
||||
if (response.statusCode != 200) {
|
||||
throw Exception('Geocoding failed: ${response.statusCode}');
|
||||
}
|
||||
|
||||
final list = jsonDecode(response.body) as List<dynamic>?;
|
||||
if (list == null || list.isEmpty) {
|
||||
throw Exception('No geocoding result for "$name"');
|
||||
}
|
||||
|
||||
final item = list[0] as Map<String, dynamic>;
|
||||
final lat = double.parse(item['lat'] as String);
|
||||
final lon = double.parse(item['lon'] as String);
|
||||
final display = item['display_name'] as String? ?? name;
|
||||
|
||||
return NavigationPoint(latitude: lat, longitude: lon, name: display);
|
||||
} catch (e) {
|
||||
throw Exception('Geocode error: $e');
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user