import 'package:intl/intl.dart';

class CurrencyInfo {
  final String code;
  final String name;
  final String symbol;

  const CurrencyInfo({
    required this.code,
    required this.name,
    required this.symbol,
  });
}

class CurrencyUtils {
  static const List<CurrencyInfo> allCurrencies = [
    CurrencyInfo(code: 'USD', name: 'US Dollar', symbol: r'$'),
    CurrencyInfo(code: 'EUR', name: 'Euro', symbol: '€'),
    CurrencyInfo(code: 'GBP', name: 'British Pound', symbol: '£'),
    CurrencyInfo(code: 'JPY', name: 'Japanese Yen', symbol: '¥'),
    CurrencyInfo(code: 'MXN', name: 'Mexican Peso', symbol: r'MX$'),
    CurrencyInfo(code: 'COP', name: 'Colombian Peso', symbol: r'$'),
    CurrencyInfo(code: 'ARS', name: 'Argentine Peso', symbol: r'$'),
    CurrencyInfo(code: 'PEN', name: 'Peruvian Sol', symbol: 'S/'),
    CurrencyInfo(code: 'CLP', name: 'Chilean Peso', symbol: r'$'),
    CurrencyInfo(code: 'BRL', name: 'Brazilian Real', symbol: r'R$'),
    CurrencyInfo(code: 'CAD', name: 'Canadian Dollar', symbol: r'CA$'),
    CurrencyInfo(code: 'AUD', name: 'Australian Dollar', symbol: r'A$'),
    CurrencyInfo(code: 'CHF', name: 'Swiss Franc', symbol: 'CHF'),
    CurrencyInfo(code: 'CNY', name: 'Chinese Yuan', symbol: '¥'),
    CurrencyInfo(code: 'INR', name: 'Indian Rupee', symbol: '₹'),
    CurrencyInfo(code: 'KRW', name: 'South Korean Won', symbol: '₩'),
    CurrencyInfo(code: 'SEK', name: 'Swedish Krona', symbol: 'kr'),
    CurrencyInfo(code: 'NOK', name: 'Norwegian Krone', symbol: 'kr'),
    CurrencyInfo(code: 'NZD', name: 'New Zealand Dollar', symbol: r'NZ$'),
    CurrencyInfo(code: 'UYU', name: 'Uruguayan Peso', symbol: r'$U'),
    CurrencyInfo(code: 'PYG', name: 'Paraguayan Guarani', symbol: '₲'),
    CurrencyInfo(code: 'BOB', name: 'Bolivian Boliviano', symbol: 'Bs'),
    CurrencyInfo(code: 'CRC', name: 'Costa Rican Colón', symbol: '₡'),
    CurrencyInfo(code: 'DOP', name: 'Dominican Peso', symbol: r'RD$'),
    CurrencyInfo(code: 'GTQ', name: 'Guatemalan Quetzal', symbol: 'Q'),
    CurrencyInfo(code: 'HNL', name: 'Honduran Lempira', symbol: 'L'),
    CurrencyInfo(code: 'NIO', name: 'Nicaraguan Córdoba', symbol: r'C$'),
    CurrencyInfo(code: 'PAB', name: 'Panamanian Balboa', symbol: 'B/.'),
    CurrencyInfo(code: 'VES', name: 'Venezuelan Bolívar', symbol: 'Bs.S'),
    CurrencyInfo(code: 'SGD', name: 'Singapore Dollar', symbol: r'S$'),
    CurrencyInfo(code: 'HKD', name: 'Hong Kong Dollar', symbol: r'HK$'),
    CurrencyInfo(code: 'TRY', name: 'Turkish Lira', symbol: '₺'),
    CurrencyInfo(code: 'TWD', name: 'Taiwan Dollar', symbol: r'NT$'),
    CurrencyInfo(code: 'THB', name: 'Thai Baht', symbol: '฿'),
    CurrencyInfo(code: 'ZAR', name: 'South African Rand', symbol: 'R'),
    CurrencyInfo(code: 'ILS', name: 'Israeli Shekel', symbol: '₪'),
    CurrencyInfo(code: 'DKK', name: 'Danish Krone', symbol: 'kr'),
    CurrencyInfo(code: 'PLN', name: 'Polish Zloty', symbol: 'zł'),
  ];

  static const _zeroDecimal = {'JPY', 'KRW', 'CLP', 'PYG', 'COP'};

  static String getSymbol(String code) {
    final idx = allCurrencies.indexWhere((c) => c.code == code);
    return idx >= 0 ? allCurrencies[idx].symbol : r'$';
  }

  static String getDisplayName(String code) {
    final idx = allCurrencies.indexWhere((c) => c.code == code);
    return idx >= 0 ? '${allCurrencies[idx].code} - ${allCurrencies[idx].name}' : code;
  }

  static String formatPrice(double amount, String code) {
    final symbol = getSymbol(code);
    final fmt = _zeroDecimal.contains(code)
        ? NumberFormat('#,##0')
        : NumberFormat('#,##0.00');
    return '$symbol${fmt.format(amount)}';
  }
}