import 'package:flutter_test/flutter_test.dart';
import 'package:matrix/matrix.dart';
import 'package:pyramid/core/notification_content.dart';
import 'package:sqflite_common_ffi/sqflite_ffi.dart';

import 'support/synthetic_matrix_data.dart';

/// Vertragstests für den Inhalt der Push-Benachrichtigungen (Bernds
/// Beta-Feedback 2026-10-07: „beim Aufklappen viel weniger Text“, „keine
/// Bildvorschau“). Native Darstellung (Verlauf, Bild) prüft das Gerät.
void main() {
  late Client client;
  late Room room;

  setUp(() async {
    final factory = createDatabaseFactoryFfi(
      ffiInit: sqfliteFfiInit,
      noIsolate: true,
    );
    final db = await factory.openDatabase(inMemoryDatabasePath);
    client = await SyntheticMatrixData.openClient(db, name: 'PyramidNotifTest');
    room = Room(id: '!raum:bench.invalid', client: client);
    room.setState(
      Event(
        type: EventTypes.RoomName,
        content: {'name': 'Familie'},
        eventId: r'$name',
        senderId: '@uta:bench.invalid',
        stateKey: '',
        originServerTs: DateTime(2026),
        room: room,
      ),
    );
    room.setState(
      Event(
        type: EventTypes.RoomMember,
        content: {'membership': 'join', 'displayname': 'Uta'},
        eventId: r'$member',
        senderId: '@uta:bench.invalid',
        stateKey: '@uta:bench.invalid',
        originServerTs: DateTime(2026),
        room: room,
      ),
    );
  });

  tearDown(() async {
    await client.dispose(closeDatabase: true);
  });

  Event message(
    Map<String, Object?> content, {
    String type = EventTypes.Message,
    String sender = '@uta:bench.invalid',
  }) => Event(
    type: type,
    content: content,
    eventId: r'$ev1',
    senderId: sender,
    originServerTs: DateTime(2026, 10, 7, 12, 30),
    room: room,
  );

  test('Text wird NICHT mehr auf 100 Zeichen gekürzt', () {
    final text = 'Wort ' * 60; // 300 Zeichen
    final body = notificationBody(message({'msgtype': 'm.text', 'body': text}));
    expect(body, text.trim());
  });

  test('sehr lange Texte werden bei 1000 Zeichen gekappt', () {
    final body = notificationBody(
      message({'msgtype': 'm.text', 'body': 'x' * 5000}),
    )!;
    expect(body.length, notificationBodyMaxChars + 1);
    expect(body.endsWith('…'), isTrue);
  });

  test('Antwort-Zitat (Reply-Fallback) wird entfernt', () {
    final body = notificationBody(
      message({
        'msgtype': 'm.text',
        'body': '> <@bernd:bench.invalid> Kommst du heute?\n\nJa, um acht!',
      }),
    );
    expect(body, 'Ja, um acht!');
  });

  test('Medien bekommen verständliche Bezeichnungen', () {
    expect(
      notificationBody(message({'msgtype': 'm.image', 'body': 'IMG_1.jpg'})),
      '📷 Foto',
    );
    expect(
      notificationBody(
        message({
          'msgtype': 'm.image',
          'body': 'Unser Garten',
          'filename': 'IMG_2.jpg',
        }),
      ),
      '📷 Unser Garten',
      reason: 'MSC2530: abweichender body neben filename = Bildunterschrift',
    );
    expect(
      notificationBody(message({'msgtype': 'm.video', 'body': 'v.mp4'})),
      '🎥 Video',
    );
    expect(
      notificationBody(
        message({
          'msgtype': 'm.audio',
          'body': 'Sprachnachricht.ogg',
          'org.matrix.msc3245.voice': <String, Object?>{},
        }),
      ),
      '🎤 Sprachnachricht',
    );
    expect(
      notificationBody(message({'msgtype': 'm.audio', 'body': 'lied.mp3'})),
      '🎵 Audio',
    );
    expect(
      notificationBody(
        message({
          'msgtype': 'm.file',
          'body': 'rechnung.pdf',
          'filename': 'rechnung.pdf',
        }),
      ),
      '📎 rechnung.pdf',
    );
    expect(
      notificationBody(message({'body': 'x'}, type: EventTypes.Sticker)),
      '🏷️ Sticker',
    );
  });

  test('nicht entschlüsselte Nachricht → null (Platzhalter bleibt)', () {
    expect(
      notificationBody(
        message({
          'algorithm': 'm.megolm.v1.aes-sha2',
          'ciphertext': 'abc',
        }, type: EventTypes.Encrypted),
      ),
      isNull,
    );
    expect(
      notificationBody(
        message({
          'msgtype': MessageTypes.BadEncrypted,
          'body': '** Unable to decrypt: …',
        }),
      ),
      isNull,
    );
  });

  test('Markdown-Fett am Anfang ist KEIN Entschlüsselungsfehler', () {
    // Früher galt jeder Text mit "**" am Anfang als nicht entschlüsselt.
    expect(
      notificationBody(
        message({'msgtype': 'm.text', 'body': '**Wichtig** heute'}),
      ),
      '**Wichtig** heute',
    );
  });

  test(
    'Inhalt: Absender-Anzeigename, Raumname, Bild-Flag, Native-Argumente',
    () {
      final content = MessageNotificationContent.fromEvent(
        message({'msgtype': 'm.image', 'body': 'IMG_1.jpg'}),
      )!;
      expect(content.senderName, 'Uta');
      expect(content.roomName, 'Familie');
      expect(content.isGroup, isTrue);
      expect(content.isImage, isTrue);
      expect(content.title, 'Uta · Familie');

      final args = content.toNativeArgs(notifId: 42, imagePath: '/x/img');
      expect(args['notifId'], 42);
      expect(args['eventId'], r'$ev1');
      expect(args['senderId'], '@uta:bench.invalid');
      expect(args['imagePath'], '/x/img');
      expect(
        args['timestamp'],
        DateTime(2026, 10, 7, 12, 30).millisecondsSinceEpoch,
      );
    },
  );

  test('unbekannter Absender → Localpart statt leerem Namen', () {
    final content = MessageNotificationContent.fromEvent(
      message({
        'msgtype': 'm.text',
        'body': 'Hi',
      }, sender: '@jochen:bench.invalid'),
    )!;
    expect(content.senderName, 'jochen');
  });

  test('Vorschau aus → kein Inhalt, kein Bild', () {
    final content = MessageNotificationContent.fromEvent(
      message({'msgtype': 'm.image', 'body': 'IMG_1.jpg'}),
      showPreview: false,
    )!;
    expect(content.body, notificationPlaceholderBody);
    expect(content.isImage, isFalse);
  });
}