cli: add AmountFromValue() and ValueFromAmount()

jonatack · jonatack · commit bbf0afade89d · 2020-06-21T18:33:07.000+02:00
diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
@@ -7,6 +7,7 @@
 #include <config/bitcoin-config.h>
 #endif
 
+#include <amount.h>
 #include <chainparamsbase.h>
 #include <clientversion.h>
 #include <optional.h>
@@ -508,6 +509,25 @@ static void ParseError(const UniValue& error, std::string& strPrint, int& nRet)
     nRet = abs(error["code"].get_int());
 }
 
+static CAmount AmountFromValue(const UniValue& value)
+{
+    CAmount amount{0};
+    if (!ParseFixedPoint(value.getValStr(), 8, &amount))
+        throw std::runtime_error("Invalid amount");
+    if (!MoneyRange(amount))
+        throw std::runtime_error("Amount out of range");
+    return amount;
+}
+
+static UniValue ValueFromAmount(const CAmount& amount)
+{
+    bool sign{amount < 0};
+    int64_t n_abs{sign ? -amount : amount};
+    int64_t quotient{n_abs / COIN};
+    int64_t remainder{n_abs % COIN};
+    return UniValue(UniValue::VNUM, strprintf("%s%d.%08d", sign ? "-" : "", quotient, remainder));
+}
+
 /**
  * GetWalletBalances calls listwallets; if more than one wallet is loaded, it then
  * fetches mine.trusted balances for each loaded wallet and pushes them to `result`.
