import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:motorcycle_dash/models/telemetry_sample.dart';
import 'package:motorcycle_dash/features/rides/ride_state_machine.dart';
import 'package:motorcycle_dash/features/dashboard/widgets/evolution_portrait_dashboard.dart';

import 'package:shared_preferences/shared_preferences.dart';
import 'package:motorcycle_dash/features/records/records_service.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  late SharedPreferences prefs;

  setUp(() async {
    SharedPreferences.setMockInitialValues({});
    prefs = await SharedPreferences.getInstance();
  });

  Widget buildDashboard({TelemetrySample? telemetry, RideSession? session}) {
    return ProviderScope(
      overrides: [
        sharedPreferencesProvider.overrideWithValue(prefs),
      ],
      child: MaterialApp(
        home: Scaffold(
          body: EvolutionPortraitDashboard(
            currentSpeedMph: 45.0,
            heading: 180.0,
            leanAngle: 12.0,
            accelG: 0.2,
            lateralG: 0.1,
            session: session ?? RideSession(
              state: RideState.riding,
              startTime: DateTime.now(),
              tripDistanceMiles: 3.5,
              topSpeedMph: 55.0,
              averageSpeedMph: 42.0,
              maxLeanLeft: 22.0,
              maxLeanRight: 25.0,
              maxAccelG: 0.6,
              maxBrakingG: 0.8,
            ),
            telemetry: telemetry,
          ),
        ),
      ),
    );
  }

  testWidgets('displays GPS LOCKED when accuracy <= 15m and no fake placeholders', (tester) async {
    final sample = TelemetrySample(
      timestamp: DateTime.now(),
      gpsAccuracy: 8.5,
    );

    await tester.pumpWidget(buildDashboard(telemetry: sample));
    await tester.pump();

    // Truthful GPS
    expect(find.text('GPS LOCKED'), findsOneWidget);

    // Placeholders removed
    expect(find.text('FIXED'), findsNothing);
    expect(find.text('HEADSET'), findsNothing);
    expect(find.text('92%'), findsNothing);

    // RID-3C-2: the visible badge is a health CLAIM, not a RideState claim. This
    // fixture builds RideSession(state: riding) with the DEFAULT
    // healthStatus: recordingArmed and no health evidence, so the truthful label
    // is WARMING UP. RideState.riding alone is never sufficient for RECORDING.
    // The Stop action remains available throughout - see U2/U9 in
    // test/rid3c2_truthful_recording_ui_test.dart.
    expect(find.text('WARMING UP'), findsOneWidget);
    expect(find.text('RECORDING'), findsNothing);
  });

  testWidgets('displays GPS FAIR when accuracy is 25m', (tester) async {
    final sample = TelemetrySample(
      timestamp: DateTime.now(),
      gpsAccuracy: 25.0,
    );

    await tester.pumpWidget(buildDashboard(telemetry: sample));
    await tester.pump();

    expect(find.text('GPS FAIR'), findsOneWidget);
    expect(find.text('HEADSET'), findsNothing);
    expect(find.text('92%'), findsNothing);
  });

  testWidgets('displays GPS WEAK when accuracy is 50m', (tester) async {
    final sample = TelemetrySample(
      timestamp: DateTime.now(),
      gpsAccuracy: 50.0,
    );

    await tester.pumpWidget(buildDashboard(telemetry: sample));
    await tester.pump();

    expect(find.text('GPS WEAK'), findsOneWidget);
    expect(find.text('HEADSET'), findsNothing);
  });

  testWidgets('displays GPS STALE when accuracy exists but fix is older than staleness bound', (tester) async {
    final sample = TelemetrySample(
      timestamp: DateTime.now(),
      gpsAccuracy: 8.5,
      gpsAgeMs: 5000,
    );

    await tester.pumpWidget(buildDashboard(telemetry: sample));
    await tester.pump();

    expect(find.text('GPS STALE'), findsOneWidget);
  });

  testWidgets('displays NO GPS when telemetry is null', (tester) async {
    await tester.pumpWidget(buildDashboard(telemetry: null));
    await tester.pump();

    expect(find.text('NO GPS'), findsOneWidget);
    expect(find.text('HEADSET'), findsNothing);
    expect(find.text('92%'), findsNothing);
  });
}