import 'package:flutter_test/flutter_test.dart';
import 'package:marianum_mobile/push/push_subject.dart';

void main() {
  group('parseTalkSubject', () {
    test('1:1 chat: "{user}\\n{message}"', () {
      final parsed = parseTalkSubject('Max Mustermann\nHallo zusammen');
      expect(parsed.sender, 'Max Mustermann');
      expect(parsed.roomName, isNull);
      expect(parsed.text, 'Hallo zusammen');
    });

    test('group chat: "{user} in {call}\\n{message}" (de identical)', () {
      final parsed = parseTalkSubject('Max in Projektraum\nHallo');
      expect(parsed.sender, 'Max');
      expect(parsed.roomName, 'Projektraum');
      expect(parsed.text, 'Hallo');
    });

    test('sender containing " in " splits at the LAST separator', () {
      final parsed = parseTalkSubject('Max in the Middle in Raum X\nHi');
      expect(parsed.sender, 'Max in the Middle');
      expect(parsed.roomName, 'Raum X');
      expect(parsed.text, 'Hi');
    });

    test('legacy ": " separator still works as fallback', () {
      final parsed = parseTalkSubject('Max: Hallo');
      expect(parsed.sender, 'Max');
      expect(parsed.roomName, isNull);
      expect(parsed.text, 'Hallo');
    });

    test('legacy group form "Sender in Raum: msg"', () {
      final parsed = parseTalkSubject('Max in Raum: Hallo');
      expect(parsed.sender, 'Max');
      expect(parsed.roomName, 'Raum');
      expect(parsed.text, 'Hallo');
    });

    test('no separator falls back to a generic sender', () {
      final parsed = parseTalkSubject(
        'Max hat eine Nachricht in der Unterhaltung Raum gesendet',
      );
      expect(parsed.sender, 'Talk');
      expect(parsed.roomName, isNull);
      expect(
        parsed.text,
        'Max hat eine Nachricht in der Unterhaltung Raum gesendet',
      );
    });

    test('multiline message keeps newlines after the first', () {
      final parsed = parseTalkSubject('Max\nZeile 1\nZeile 2');
      expect(parsed.sender, 'Max');
      expect(parsed.text, 'Zeile 1\nZeile 2');
    });
  });
}