import 'package:flutter_test/flutter_test.dart';
import 'package:motorcycle_dash/services/social/handle_validator.dart';

void main() {
  group('HandleValidator', () {
    test('accepts valid handles', () {
      final validCases = [
        'canyon_rider',
        'apex_hunter99',
        'moto_gp',
        'speedy',
        'r1200gs',
        'moto_pilot_2026',
      ];

      for (final handle in validCases) {
        final result = HandleValidator.validate(handle);
        expect(result.isValid, isTrue, reason: 'Expected $handle to be valid');
        expect(result.normalizedHandle, equals(handle.toLowerCase().trim()));
        expect(result.error, isNull);
      }
    });

    test('normalizes handles with uppercase and whitespace', () {
      final result = HandleValidator.validate('  Apex_Rider  ');
      expect(result.isValid, isTrue);
      expect(result.normalizedHandle, equals('apex_rider'));
    });

    test('rejects empty or blank handles', () {
      expect(HandleValidator.validate('').isValid, isFalse);
      expect(HandleValidator.validate('   ').isValid, isFalse);
    });

    test('rejects handles shorter than 3 characters', () {
      final result = HandleValidator.validate('ab');
      expect(result.isValid, isFalse);
      expect(result.error, contains('at least 3 characters'));
    });

    test('rejects handles longer than 20 characters', () {
      final result = HandleValidator.validate('this_handle_is_way_too_long_for_system');
      expect(result.isValid, isFalse);
      expect(result.error, contains('cannot exceed 20 characters'));
    });

    test('rejects handles not starting with a letter', () {
      expect(HandleValidator.validate('99riders').isValid, isFalse);
      expect(HandleValidator.validate('_speedy').isValid, isFalse);
    });

    test('rejects invalid characters like hyphens, spaces, and punctuation', () {
      expect(HandleValidator.validate('moto-rider').isValid, isFalse);
      expect(HandleValidator.validate('moto rider').isValid, isFalse);
      expect(HandleValidator.validate('moto@dash').isValid, isFalse);
      expect(HandleValidator.validate('moto!rider').isValid, isFalse);
    });

    test('rejects reserved handles', () {
      final reserved = [
        'admin',
        'administrator',
        'motorsignal',
        'motorcloud',
        'support',
        'system',
        'mod',
        'moderator',
        'help',
        'official',
        'root',
        'api',
        'bot',
        'guest',
        'anonymous',
      ];

      for (final handle in reserved) {
        final result = HandleValidator.validate(handle);
        expect(result.isValid, isFalse, reason: 'Expected reserved handle $handle to fail');
        expect(result.error, contains('reserved'));
      }
    });
  });
}