import { LocationData } from "./location";

export interface CurrencyData {
  symbol: string;
  code: string;
  name: string;
  monthlyPrice: number;
  annualPrice: number;
}

const DEFAULT_CURRENCY: CurrencyData = {
  symbol: "US$",
  code: "USD",
  name: "US Dollars",
  monthlyPrice: 12,
  annualPrice: 9.6,
};

// Simplified currency map: country code (lowercase) -> { code, symbol, rate, name }
const currencyMap: Record<string, { code: string; symbol: string; rate: number; name: string }> = {
  us: { code: "USD", symbol: "US$", rate: 1, name: "US Dollars" },
  au: { code: "AUD", symbol: "AU$", rate: 1.5, name: "Australian Dollars" },
  gb: { code: "GBP", symbol: "£", rate: 0.8, name: "British Pounds" },
  ca: { code: "CAD", symbol: "CA$", rate: 1.35, name: "Canadian Dollars" },
  nz: { code: "NZD", symbol: "NZ$", rate: 1.65, name: "New Zealand Dollars" },
  in: { code: "INR", symbol: "₹", rate: 83.5, name: "Indian Rupees" },
  sg: { code: "SGD", symbol: "SG$", rate: 1.35, name: "Singapore Dollars" },
  jp: { code: "JPY", symbol: "JP¥", rate: 152, name: "Japanese Yen" },
  de: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  fr: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  es: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  it: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  nl: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  be: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  ie: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  at: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  fi: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  pt: { code: "EUR", symbol: "€", rate: 0.93, name: "Euros" },
  se: { code: "SEK", symbol: "kr", rate: 10.5, name: "Swedish Krona" },
  dk: { code: "DKK", symbol: "kr", rate: 7, name: "Danish Krone" },
  no: { code: "NOK", symbol: "kr", rate: 10.8, name: "Norwegian Krone" },
  pl: { code: "PLN", symbol: "zł", rate: 4, name: "Polish Złoty" },
  cn: { code: "CNY", symbol: "CN¥", rate: 7.2, name: "Chinese Yuan" },
  kr: { code: "KRW", symbol: "₩", rate: 1350, name: "South Korean Won" },
  br: { code: "BRL", symbol: "R$", rate: 5, name: "Brazilian Real" },
  mx: { code: "MXN", symbol: "MX$", rate: 16.8, name: "Mexican Pesos" },
  za: { code: "ZAR", symbol: "R", rate: 18.5, name: "South African Rand" },
  ph: { code: "PHP", symbol: "₱", rate: 56.5, name: "Philippine Pesos" },
  my: { code: "MYR", symbol: "RM", rate: 4.75, name: "Malaysian Ringgit" },
  th: { code: "THB", symbol: "฿", rate: 36.5, name: "Thai Baht" },
  vn: { code: "VND", symbol: "₫", rate: 25000, name: "Vietnamese Đồng" },
  id: { code: "IDR", symbol: "Rp", rate: 16000, name: "Indonesian Rupiah" },
  tr: { code: "TRY", symbol: "₺", rate: 32.5, name: "Turkish Lira" },
  ru: { code: "RUB", symbol: "₽", rate: 93, name: "Russian Rubles" },
  il: { code: "ILS", symbol: "₪", rate: 3.75, name: "Israeli New Shekel" },
  ua: { code: "UAH", symbol: "₴", rate: 39, name: "Ukrainian Hryvnia" },
};

export function getCurrencyForLocation(location: LocationData | null): CurrencyData {
  if (!location || !location.countryCode) {
    return DEFAULT_CURRENCY;
  }

  const country = location.countryCode.toLowerCase();
  const currencyInfo = currencyMap[country];

  if (!currencyInfo) {
    // If not in our map but we have countryCode, maybe it's Euro?
    const euroCountries = ["el", "bg", "hr", "sk", "sl", "lt", "lv", "ee", "ro", "hu", "cz"];
    if (euroCountries.includes(country)) {
      return {
        symbol: "€",
        code: "EUR",
        name: "Euros",
        monthlyPrice: 11,
        annualPrice: 8.8,
      };
    }
    return DEFAULT_CURRENCY;
  }

  const baseMonthly = 12;
  const rawMonthly = baseMonthly * (currencyInfo.rate || 1);
  
  let monthlyPrice = Math.round(rawMonthly);
  if (monthlyPrice < 100) {
     monthlyPrice = Math.round(rawMonthly * 2) / 2;
  }
  
  const annualPrice = monthlyPrice * 0.8;

  return {
    symbol: currencyInfo.symbol,
    code: currencyInfo.code,
    name: currencyInfo.name,
    monthlyPrice,
    annualPrice,
  };
}