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Round Bitcoins to nearest Satoshi (#4154)

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benthecarman 2022-03-09 13:01:26 -05:00 committed by GitHub
parent 23f359821f
commit c379cf4a73
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1 changed files with 10 additions and 1 deletions
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11
core/src/main/scala/org/bitcoins/core/currency/CurrencyUnits.scala
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@ -6,6 +6,8 @@ import org.bitcoins.core.serializers.RawSatoshisSerializer
import org.bitcoins.crypto.{Factory, NetworkElement} import org.bitcoins.crypto.{Factory, NetworkElement}
import scodec.bits.ByteVector import scodec.bits.ByteVector
import scala.math.BigDecimal.RoundingMode
import scala.math.BigDecimal.RoundingMode.RoundingMode
import scala.math.Numeric import scala.math.Numeric
import scala.util.{Failure, Success, Try} import scala.util.{Failure, Success, Try}
@ -170,7 +172,14 @@ object Bitcoins extends BaseNumbers[Bitcoins] with Bounded[Bitcoins] {
Bitcoins(b) Bitcoins(b)
} }
def apply(underlying: BigDecimal): Bitcoins = BitcoinsImpl(underlying) def apply(
underlying: BigDecimal,
roundingMode: RoundingMode = RoundingMode.DOWN): Bitcoins = {
// Bitcoin can't represent amounts lower than a satoshi
// so we need to round to the nearest satoshi
val rounded = underlying.setScale(8, roundingMode)
BitcoinsImpl(rounded)
}
private case class BitcoinsImpl(underlying: BigDecimal) extends Bitcoins private case class BitcoinsImpl(underlying: BigDecimal) extends Bitcoins
} }