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finalize code paths for offline areas, caching, in light of multiple tile providers

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stopflock
2025-08-26 17:52:14 -05:00
parent 17c9ee0c5c
commit a3edcfc2de
6 changed files with 69 additions and 49 deletions
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lib/services/simple_tile_service.dart
+17 -15
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@@ -13,10 +13,10 @@ class SimpleTileHttpClient extends http.BaseClient {
@override
Future<http.StreamedResponse> send(http.BaseRequest request) async {
// Extract tile coordinates from the URL using our standard pattern
// Extract tile coordinates from our custom URL scheme
final tileCoords = _extractTileCoords(request.url);
if (tileCoords != null) {
final z = tileCoords['z']!; // We know these are not null from _extractTileCoords
final z = tileCoords['z']!;
final x = tileCoords['x']!;
final y = tileCoords['y']!;
return _handleTileRequest(z, x, y);
@@ -26,21 +26,22 @@ class SimpleTileHttpClient extends http.BaseClient {
return _inner.send(request);
}
/// Extract z/x/y coordinates from our standard tile URL pattern
/// Extract z/x/y coordinates from our fake domain: https://tiles.local/provider/type/z/x/y
/// We ignore the provider/type in the URL since we use current AppState for actual fetching
Map<String, int>? _extractTileCoords(Uri url) {
// We'll use a simple standard pattern: /{z}/{x}/{y}.png
// This will be the format we use in map_view.dart
final pathSegments = url.pathSegments;
if (url.host != 'tiles.local') return null;
if (pathSegments.length == 3) {
final z = int.tryParse(pathSegments[0]);
final x = int.tryParse(pathSegments[1]);
final yWithExt = pathSegments[2];
final y = int.tryParse(yWithExt.replaceAll(RegExp(r'\.[^.]*$'), '')); // Remove .png
if (z != null && x != null && y != null) {
return {'z': z, 'x': x, 'y': y};
}
final pathSegments = url.pathSegments;
if (pathSegments.length != 5) return null;
// pathSegments[0] = providerId (for cache separation only)
// pathSegments[1] = tileTypeId (for cache separation only)
final z = int.tryParse(pathSegments[2]);
final x = int.tryParse(pathSegments[3]);
final y = int.tryParse(pathSegments[4]);
if (z != null && x != null && y != null) {
return {'z': z, 'x': x, 'y': y};
}
return null;
@@ -49,6 +50,7 @@ class SimpleTileHttpClient extends http.BaseClient {
Future<http.StreamedResponse> _handleTileRequest(int z, int x, int y) async {
try {
// Always go through MapDataProvider - it handles offline/online routing
// MapDataProvider will get current provider from AppState
final tileBytes = await _mapDataProvider.getTile(z: z, x: x, y: y, source: MapSource.auto);
// Clear waiting status - we got data