package net.pokeranalytics.android.util

import android.content.Context
import net.pokeranalytics.android.model.realm.Bankroll
import java.text.NumberFormat
import java.util.*

class CurrencyUtils {

	companion object {

		/**
		 * return the currency associated with this bankroll
		 */
		fun getCurrency(bankroll: Bankroll? = null) : Currency {
			val currencyCode = bankroll?.currency?.code ?: CurrencyUtils.getLocaleCurrency().currencyCode
			return Currency.getInstance(currencyCode)
		}

		/**
		 * Get a currency formatter
		 */
		fun getCurrencyFormatter(context: Context, currency: Currency? = null) : NumberFormat {
			val currencyFormatter = NumberFormat.getCurrencyInstance(Preferences.getCurrencyLocale(context))
			currency?.let {
				currencyFormatter.currency = it
			}
			currencyFormatter.minimumFractionDigits = 0
			currencyFormatter.maximumFractionDigits = 2
			return currencyFormatter
		}

		/**
		 * Get a currency rate formatter
		 */
		fun getCurrencyRateFormatter() : NumberFormat {
			val currencyFormatter = NumberFormat.getInstance()
			currencyFormatter.minimumFractionDigits = 0
			currencyFormatter.maximumFractionDigits = 6
			return currencyFormatter
		}

        /**
         * Return the locale currency, or en_US if there
         */
        fun getLocaleCurrency() : java.util.Currency {
            return try {
                java.util.Currency.getInstance(Locale.getDefault())
            } catch (ex: Exception) {
                when (Locale.getDefault().language) {
                    "en" -> java.util.Currency.getInstance(Locale("en", "US"))
                    "fr" -> java.util.Currency.getInstance(Locale("fr", "FR"))
                    "es" -> java.util.Currency.getInstance(Locale("es", "ES"))
                    "de" -> java.util.Currency.getInstance(Locale("de", "DE"))
                    "ja" -> java.util.Currency.getInstance(Locale("ja", "JP"))
                    "zh" -> java.util.Currency.getInstance(Locale("zh", "CN"))
                    else -> java.util.Currency.getInstance(Locale("en", "US"))
                }
            }
        }
	}

}