Added Line Of Sight Feature for repeater placement, Added app wide Units Setting (#198)

* feat: add LOS workflow, global units, l10n cleanup, and mobile UI overflow fixes Squashes prior PR commits into one changeset including: LOS map/service/tests, global metric/imperial unit system adoption, notification/BLE safety fixes, app-wide localization backfill/mojibake cleanup, and responsive UI title/overflow hardening. * l10n: revert unrelated locale churn for LOS feature * feat: keep LOS with app-wide unit settings * fix: resolve post-merge app bar/import analyzer errors * style: format screen files for CI
2026-06-22 02:14:28 +10:00 · 2026-02-21 01:08:23 -05:00
parent d2b693e5ce
commit f4b18d97a1
52 changed files with 6078 additions and 214 deletions
@@ -0,0 +1,72 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:meshcore_open/services/line_of_sight_service.dart';
+
+void main() {
+  List<LatLng> makePoints(int count) {
+    return List<LatLng>.generate(count, (i) => LatLng(0, i * 0.00001));
+  }
+
+  test('computeFromElevations reports clear LOS on flat terrain', () {
+    final points = makePoints(21);
+    final elevations = List<double>.filled(points.length, 100);
+
+    final result = LineOfSightService.computeFromElevations(
+      points: points,
+      elevations: elevations,
+      startAntennaHeightMeters: 2,
+      endAntennaHeightMeters: 2,
+    );
+
+    expect(result.hasData, isTrue);
+    expect(result.isClear, isTrue);
+    expect(result.maxObstructionMeters, equals(0));
+    expect(result.firstObstructionDistanceMeters, isNull);
+  });
+
+  test(
+    'computeFromElevations reports blocked LOS with central obstruction',
+    () {
+      final points = makePoints(21);
+      final elevations = List<double>.filled(points.length, 100);
+      elevations[10] = 300;
+
+      final result = LineOfSightService.computeFromElevations(
+        points: points,
+        elevations: elevations,
+        startAntennaHeightMeters: 1.5,
+        endAntennaHeightMeters: 1.5,
+      );
+
+      expect(result.hasData, isTrue);
+      expect(result.isClear, isFalse);
+      expect(result.maxObstructionMeters, greaterThan(0));
+      expect(result.firstObstructionDistanceMeters, isNotNull);
+    },
+  );
+
+  test('analyzePath summarizes clear and blocked segments', () async {
+    final service = LineOfSightService(
+      elevationDataSource: (points) async {
+        final elevations = List<double?>.filled(points.length, 100);
+        if (points.first.longitude > 0.00005) {
+          elevations[elevations.length ~/ 2] = 300;
+        }
+        return elevations;
+      },
+    );
+
+    final path = [
+      const LatLng(0, 0),
+      const LatLng(0, 0.0001),
+      const LatLng(0, 0.0002),
+    ];
+
+    final result = await service.analyzePath(path);
+
+    expect(result.segments.length, 2);
+    expect(result.clearSegments, 1);
+    expect(result.blockedSegments, 1);
+    expect(result.unknownSegments, 0);
+  });
+}