money-module/src/main/kotlin/com/cubetiqs/libra/moneyutils/MoneyConfig.kt

53 lines
1.4 KiB
Kotlin

package com.cubetiqs.libra.moneyutils
/**
* Default money config in static object.
*
* @author sombochea
* @since 1.0
*/
object MoneyConfig {
private const val SPLIT_ORD_1 = ','
private const val SPLIT_ORD_2 = '='
/**
* Key is the currency
* Value is the rate
*/
private val config = mutableMapOf<String, Double>()
fun parse(config: String): Map<String, Double> {
val result = mutableMapOf<String, Double>()
val rates = config.split(SPLIT_ORD_1)
/**
* USD=1
* KHR=4000
* EUR=0.99
*
* USD -> currency
* 1 -> value
*/
rates.map { i ->
val temp = i.split(SPLIT_ORD_2)
if (temp.size == 2) {
val currency = temp[0]
val value = temp[1].toDouble()
result.put(currency.toUpperCase(), value)
} else {
throw IllegalArgumentException("invalid value!")
}
}
// if you want to use all set currencies without remove from memory, we should remove this line
this.config.clear()
this.config.putAll(result)
return result
}
// all currencies with its rate
fun getConfig() = this.config
fun getRate(currency: String): Double {
return getConfig()[currency.toUpperCase()] ?: throw IllegalArgumentException("currency not found")
}
}