import 'package:flutter/material.dart';

/// Locale-aware name selector for terminology fields.
///
/// Selects the appropriate field based on user locale:
/// - zh-Hant (Traditional Chinese) → uses `_hant` suffix fields
/// - zh (Simplified Chinese) or en (English) → uses base fields
class LocaleNameSelector {
  const LocaleNameSelector._(this._isHant);

  final bool _isHant;

  /// Creates a selector from the given [locale].
  factory LocaleNameSelector.fromLocale(Locale locale) {
    final isHant = locale.scriptCode == 'Hant';
    return LocaleNameSelector._(isHant);
  }

  /// Creates a selector from the given [context].
  factory LocaleNameSelector.of(BuildContext context) {
    final locale = Localizations.localeOf(context);
    return LocaleNameSelector.fromLocale(locale);
  }

  /// Selects between simplified and traditional Chinese name.
  ///
  /// Returns [nameHant] for zh-Hant locale, [name] otherwise.
  String name(String name, String nameHant) {
    return _isHant ? nameHant : name;
  }

  /// Returns true if the current locale uses Traditional Chinese.
  bool get isTraditionalChinese => _isHant;
}