import 'package:drift/native.dart';
import 'package:flutter_test/flutter_test.dart';

import 'package:dmc_app/domain/mission/terrain_math.dart';
import 'package:dmc_app/domain/waypoint/flat_waypoint_list.dart';
import 'package:dmc_app/services/database/app_database.dart';
import 'package:dmc_app/services/database/mission_repository.dart';

void main() {
  late AppDatabase db;
  late MissionRepository repository;

  setUp(() {
    db = AppDatabase.forTesting(NativeDatabase.memory());
    repository = MissionRepository(db);
  });

  tearDown(() => db.close());

  const waypoints = [
    Waypoint(lat: 52.0, lon: 4.0, altitudeM: 60, speedMs: 15, catchRadiusM: 60),
    Waypoint(
      lat: 52.01,
      lon: 4.01,
      altitudeM: 80,
      speedMs: 18,
      catchRadiusM: 60,
      action: WaypointAction.loiter,
    ),
  ];

  test('upsert ohne id legt eine neue Mission an', () async {
    final id = await repository.upsert(
      name: 'Amsterdam',
      placeName: 'Amsterdam',
      waypoints: waypoints,
    );

    final loaded = await repository.load(id);
    expect(loaded, isNotNull);
    expect(loaded!.name, 'Amsterdam');
    expect(loaded.placeName, 'Amsterdam');
    expect(loaded.waypoints, hasLength(2));
    expect(loaded.waypoints[1].action, WaypointAction.loiter);
    expect(loaded.waypoints[1].speedMs, 18);
  });

  test('upsert mit bestehender id ueberschreibt statt zu duplizieren', () async {
    final id = await repository.upsert(name: 'Draft', waypoints: waypoints);

    await repository.upsert(
      id: id,
      name: 'Draft',
      waypoints: [waypoints.first],
    );

    final summaries = await repository.watchSummaries().first;
    expect(summaries, hasLength(1));
    expect(summaries.single.waypointCount, 1);
  });

  test('rename aendert nur den Namen, nicht die Wegpunkte', () async {
    final id = await repository.upsert(name: 'Old name', waypoints: waypoints);

    await repository.rename(id, 'New name');

    final loaded = await repository.load(id);
    expect(loaded!.name, 'New name');
    expect(loaded.waypoints, hasLength(2));
  });

  test('delete entfernt die Mission aus der Liste', () async {
    final id = await repository.upsert(name: 'To delete', waypoints: waypoints);

    await repository.delete(id);

    final loaded = await repository.load(id);
    expect(loaded, isNull);
    expect(await repository.watchSummaries().first, isEmpty);
  });

  test('load fuer unbekannte id liefert null', () async {
    expect(await repository.load(999), isNull);
  });

  test('Windfelder werden mitgespeichert und wiederhergestellt', () async {
    const withWind = Waypoint(
      lat: 52.0,
      lon: 4.0,
      altitudeM: 60,
      speedMs: 15,
      catchRadiusM: 60,
      windSpeedMs: 5.5,
      windDirFromDeg: 210,
      windElevationM: 2,
    );
    final id = await repository.upsert(name: 'Windy', waypoints: [withWind]);

    final loaded = await repository.load(id);

    expect(loaded!.waypoints.single.windSpeedMs, 5.5);
    expect(loaded.waypoints.single.windDirFromDeg, 210);
    expect(loaded.waypoints.single.windElevationM, 2);
  });

  group('Bodenhoehenprofil', () {
    const profile = TerrainProfile(
      routeKey: '52.00000,4.00000|52.01000,4.01000',
      points: [
        TerrainSamplePoint(distanceM: 0, elevationRelM: 0),
        TerrainSamplePoint(distanceM: 30, elevationRelM: 2.5),
        TerrainSamplePoint(distanceM: 60, elevationRelM: null),
      ],
    );

    test('frisch angelegte Mission hat noch kein Profil', () async {
      final id = await repository.upsert(name: 'No terrain', waypoints: waypoints);

      final loaded = await repository.load(id);

      expect(loaded!.terrainProfile, isNull);
    });

    test('saveTerrainProfile persistiert das Profil, load() gibt es zurueck', () async {
      final id = await repository.upsert(name: 'With terrain', waypoints: waypoints);

      await repository.saveTerrainProfile(id, profile);
      final loaded = await repository.load(id);

      expect(loaded!.terrainProfile, isNotNull);
      expect(loaded.terrainProfile!.routeKey, profile.routeKey);
      expect(loaded.terrainProfile!.points, hasLength(3));
      expect(loaded.terrainProfile!.points[1].elevationRelM, 2.5);
      expect(loaded.terrainProfile!.points[2].elevationRelM, isNull);
    });

    test('ein gewoehnlicher upsert (Wegpunkt-Autosave) loescht ein bereits '
        'gespeichertes Profil nicht', () async {
      final id = await repository.upsert(name: 'Autosave', waypoints: waypoints);
      await repository.saveTerrainProfile(id, profile);

      await repository.upsert(
        id: id,
        name: 'Autosave',
        waypoints: [waypoints.first],
      );

      final loaded = await repository.load(id);
      expect(loaded!.terrainProfile, isNotNull);
      expect(loaded.terrainProfile!.routeKey, profile.routeKey);
    });
  });
}