Replace Bitcoins params in RPC client with CurrencyUnit (#618)

* implemented currency unit and wrote a writer

* Convert more Bitcoins parameters to CurrencyUnit

bitcoind-rpc/src/main/scala/org/bitcoins/rpc/client/common/TransactionRpc.scala

@@ -1,7 +1,7 @@
 package org.bitcoins.rpc.client.common
 
 import org.bitcoins.core.crypto.{DoubleSha256Digest, DoubleSha256DigestBE}
-import org.bitcoins.core.currency.{Bitcoins, Satoshis}
+import org.bitcoins.core.currency.{Bitcoins, CurrencyUnit, Satoshis}
 import org.bitcoins.core.protocol.BitcoinAddress
 import org.bitcoins.core.protocol.blockchain.MerkleBlock
 import org.bitcoins.rpc.client.common.RpcOpts.{AddressType, FeeEstimationMode}
@@ -133,29 +133,31 @@ trait TransactionRpc { self: Client =>
   }
 
   def sendMany(
-      amounts: Map[BitcoinAddress, Bitcoins],
+      amounts: Map[BitcoinAddress, CurrencyUnit],
       minconf: Int = 1,
       comment: String = "",
       subtractFeeFrom: Vector[BitcoinAddress] = Vector.empty): Future[
     DoubleSha256DigestBE] = {
-    bitcoindCall[DoubleSha256DigestBE]("sendmany",
+    bitcoindCall[DoubleSha256DigestBE](
+      "sendmany",
       List(JsString(""),
-                                            Json.toJson(amounts),
+           Json.toJson(amounts.mapValues(curr => Bitcoins(curr.satoshis))),
            JsNumber(minconf),
            JsString(comment),
-                                            Json.toJson(subtractFeeFrom)))
+           Json.toJson(subtractFeeFrom))
+    )
   }
 
   def sendToAddress(
       address: BitcoinAddress,
-      amount: Bitcoins,
+      amount: CurrencyUnit,
       localComment: String = "",
       toComment: String = "",
       subractFeeFromAmount: Boolean = false): Future[DoubleSha256DigestBE] = {
     bitcoindCall[DoubleSha256DigestBE](
       "sendtoaddress",
       List(Json.toJson(address),
-           Json.toJson(amount),
+           Json.toJson(Bitcoins(amount.satoshis)),
            JsString(localComment),
            JsString(toComment),
            JsBoolean(subractFeeFromAmount))

bitcoind-rpc/src/main/scala/org/bitcoins/rpc/client/v16/V16SendRpc.scala

@@ -9,6 +9,8 @@ import org.bitcoins.rpc.serializers.JsonSerializers._
 import play.api.libs.json.{JsNumber, JsString}
 
 import scala.concurrent.Future
+import org.bitcoins.core.currency.CurrencyUnit
+import play.api.libs.json.Json
 
 /**
   * RPC calls related to transaction sending
@@ -19,12 +21,12 @@ trait V16SendRpc { self: Client =>
   def move(
       fromAccount: String,
       toAccount: String,
-      amount: Bitcoins,
+      amount: CurrencyUnit,
       comment: String = ""): Future[Boolean] = {
     bitcoindCall[Boolean]("move",
                           List(JsString(fromAccount),
                                JsString(toAccount),
-                               JsNumber(amount.toBigDecimal),
+                               Json.toJson(Bitcoins(amount.satoshis)),
                                JsNumber(6),
                                JsString(comment)))
   }
@@ -32,15 +34,15 @@ trait V16SendRpc { self: Client =>
   def sendFrom(
       fromAccount: String,
       toAddress: BitcoinAddress,
-      amount: Bitcoins,
+      amount: CurrencyUnit,
       confirmations: Int = 1,
       comment: String = "",
       toComment: String = ""): Future[DoubleSha256DigestBE] = {
     bitcoindCall[DoubleSha256DigestBE](
       "sendfrom",
       List(JsString(fromAccount),
-           JsString(toAddress.value),
-           JsNumber(amount.toBigDecimal),
+           Json.toJson(toAddress),
+           Json.toJson(Bitcoins(amount.satoshis)),
            JsNumber(confirmations),
            JsString(comment),
            JsString(toComment))

bitcoind-rpc/src/main/scala/org/bitcoins/rpc/client/v17/V17PsbtRpc.scala

@@ -17,6 +17,7 @@ import org.bitcoins.rpc.serializers.JsonSerializers._
 import play.api.libs.json._
 
 import scala.concurrent.Future
+import org.bitcoins.core.currency.CurrencyUnit
 
 /**
   * RPC calls related to PSBT (partially signed bitcoin transactions)
@@ -43,12 +44,13 @@ trait V17PsbtRpc { self: Client =>
 
   def createPsbt(
       inputs: Vector[TransactionInput],
-      outputs: Map[BitcoinAddress, Bitcoins],
+      outputs: Map[BitcoinAddress, CurrencyUnit],
       locktime: Int = 0,
       replacable: Boolean = false): Future[String] = {
-    bitcoindCall[String]("createpsbt",
+    bitcoindCall[String](
+      "createpsbt",
       List(Json.toJson(inputs),
-                              Json.toJson(outputs),
+           Json.toJson(outputs.mapValues(curr => Bitcoins(curr.satoshis))),
            JsNumber(locktime),
            JsBoolean(replacable)))
   }
@@ -66,17 +68,19 @@ trait V17PsbtRpc { self: Client =>
 
   def walletCreateFundedPsbt(
       inputs: Vector[TransactionInput],
-      outputs: Map[BitcoinAddress, Bitcoins],
+      outputs: Map[BitcoinAddress, CurrencyUnit],
       locktime: Int = 0,
       options: WalletCreateFundedPsbtOptions = WalletCreateFundedPsbtOptions(),
       bip32derivs: Boolean = false
   ): Future[WalletCreateFundedPsbtResult] =
-    bitcoindCall[WalletCreateFundedPsbtResult]("walletcreatefundedpsbt",
+    bitcoindCall[WalletCreateFundedPsbtResult](
+      "walletcreatefundedpsbt",
       List(Json.toJson(inputs),
-                                                    Json.toJson(outputs),
+           Json.toJson(outputs.mapValues(curr => Bitcoins(curr.satoshis))),
            JsNumber(locktime),
            Json.toJson(options),
-                                                    Json.toJson(bip32derivs)))
+           Json.toJson(bip32derivs))
+    )
 
   def walletProcessPsbt(
       psbt: String,

bitcoind-rpc/src/main/scala/org/bitcoins/rpc/serializers/JsonWriters.scala

@@ -1,7 +1,7 @@
 package org.bitcoins.rpc.serializers
 
 import org.bitcoins.core.crypto.{DoubleSha256Digest, DoubleSha256DigestBE}
-import org.bitcoins.core.currency.Bitcoins
+import org.bitcoins.core.currency.{Bitcoins, CurrencyUnit}
 import org.bitcoins.core.number.UInt32
 import org.bitcoins.core.protocol.BitcoinAddress
 import org.bitcoins.core.protocol.ln.currency.MilliSatoshis