fix(dart_frog_gen): support repeated nested routes (#246)

Author: felangel

packages/dart_frog_gen/lib/src/build_route_configuration.dart

@@ -179,18 +179,28 @@ List<RouteFile> _getRouteFiles({
     final filePath = path
         .relative(entity.path, from: routesDirectory.path)
         .replaceAll(r'\', '/');
-    final fileRoutePath = pathToRoute(path.join('..', 'routes', filePath))
-        .split(directoryPath)
-        .last;
-    var fileRoute = fileRoutePath.isEmpty ? '/' : fileRoutePath;
-    fileRoute = prefix + fileRoute;
-    if (!fileRoute.startsWith('/')) {
-      fileRoute = '/$fileRoute';
-    }
-    if (fileRoute != '/' && fileRoute.endsWith('/')) {
-      fileRoute = fileRoute.substring(0, fileRoute.length - 1);
+
+    String getFileRoute() {
+      final routePath = pathToRoute(path.join('..', 'routes', filePath));
+      final index = routePath.indexOf(directoryPath);
+      final fileRoutePath = index == -1
+          ? routePath
+          : routePath.substring(index + directoryPath.length);
+
+      var fileRoute = fileRoutePath.isEmpty ? '/' : fileRoutePath;
+      fileRoute = prefix + fileRoute;
+
+      if (!fileRoute.startsWith('/')) {
+        fileRoute = '/$fileRoute';
+      }
+      if (fileRoute != '/' && fileRoute.endsWith('/')) {
+        fileRoute = fileRoute.substring(0, fileRoute.length - 1);
+      }
+
+      return fileRoute;
     }
 
+    final fileRoute = getFileRoute();
     final relativeFilePath = path.join('..', 'routes', filePath);
     final route = RouteFile(
       name: filePath.toAlias(),

packages/dart_frog_gen/test/src/build_route_configuration_test.dart

@@ -648,5 +648,53 @@ void main() {
         }),
       );
     });
+
+    test('supports /api/api.dart', () {
+      const expected = [
+        {'name': '_', 'route': '/', 'middleware': false, 'files': <dynamic>[]},
+        {
+          'name': '_api',
+          'route': '/api',
+          'middleware': false,
+          'files': [
+            {
+              'name': 'api_api',
+              'path': '../routes/api/api.dart',
+              'route': '/api'
+            }
+          ]
+        }
+      ];
+      final directory = Directory(
+        path.join(
+          Directory.current.path,
+          'test',
+          '.fixtures',
+          'dynamic_static_nesting3',
+        ),
+      )..createSync(recursive: true);
+      final routes = Directory(path.join(directory.path, 'routes'))
+        ..createSync();
+      final apiDirectory = Directory(path.join(routes.path, 'api'))
+        ..createSync();
+      File(path.join(apiDirectory.path, 'api.dart')).createSync();
+      final configuration = buildRouteConfiguration(directory);
+      expect(
+        configuration.directories.map((d) => d.toJson()).toList(),
+        equals(expected),
+      );
+      expect(
+        configuration.endpoints,
+        equals({
+          '/api/api': [
+            isA<RouteFile>().having(
+              (r) => r.path,
+              'path',
+              '../routes/api/api.dart',
+            )
+          ],
+        }),
+      );
+    });
   });
 }