import Foundation

enum CurrencyFormatter {
    static func currentCurrencyCode() -> String {
        let context = CoreDataStack.shared.viewContext
        return AppSettings.getOrCreate(in: context).currency
    }

    static func format(_ decimal: Decimal, style: NumberFormatter.Style = .currency, maximumFractionDigits: Int = 2) -> String {
        let formatter = NumberFormatter()
        formatter.numberStyle = style
        formatter.currencyCode = currentCurrencyCode()
        formatter.maximumFractionDigits = maximumFractionDigits
        return formatter.string(from: decimal as NSDecimalNumber) ?? "\(decimal)"
    }

    static func symbol(for code: String) -> String {
        let formatter = NumberFormatter()
        formatter.numberStyle = .currency
        formatter.currencyCode = code
        return formatter.currencySymbol ?? code
    }
}