import 'package:formz/formz.dart';
import '../../core/l10n/l10n.dart';

class Username extends FormzInput<String, String> {
  const Username.pure() : super.pure('');
  const Username.dirty([super.value = '']) : super.dirty();

  @override
  String? validator(String value) {
    if (value.isEmpty) return L10n.current.inputUsernameRequired;
    if (value.length < 3) return L10n.current.inputUsernameMin;
    if (value.length > 30) return L10n.current.inputUsernameMax;
    return null;
  }
}

class Phone extends FormzInput<String, String> {
  const Phone.pure() : super.pure('');
  const Phone.dirty([super.value = '']) : super.dirty();

  static final _regex = RegExp(r'^\d{7,14}$');

  @override
  String? validator(String value) {
    final normalized = value.replaceAll(RegExp(r'\s+'), '');
    if (normalized.isEmpty) return L10n.current.inputPhoneRequired;
    if (!_regex.hasMatch(normalized)) return L10n.current.inputPhoneInvalid;
    return null;
  }
}

class Password extends FormzInput<String, String> {
  const Password.pure() : super.pure('');
  const Password.dirty([super.value = '']) : super.dirty();

  @override
  String? validator(String value) {
    if (value.isEmpty) return L10n.current.inputPasswordRequired;
    if (value.length < 6) return L10n.current.inputPasswordMin;
    return null;
  }
}

class VerificationCode extends FormzInput<String, String> {
  const VerificationCode.pure() : super.pure('');
  const VerificationCode.dirty([super.value = '']) : super.dirty();

  @override
  String? validator(String value) {
    if (value.isEmpty) return L10n.current.inputCodeRequired;
    if (!RegExp(r'^\d{6}$').hasMatch(value)) {
      return L10n.current.inputCodeInvalid;
    }
    return null;
  }
}