Added currency converting

1 files changed, 35 insertions, 0 deletions

diff --git a/ethutil/common.go b/ethutil/common.go
new file mode 100644
index 000000000..07df6bb13
--- /dev/null
+++ b/ethutil/common.go
@@ -0,0 +1,35 @@
+package ethutil
+
+import (
+	"fmt"
+	"math/big"
+)
+
+var (
+	Ether  = BigPow(10, 18)
+	Finney = BigPow(10, 15)
+	Szabo  = BigPow(10, 12)
+	Vito   = BigPow(10, 9)
+	Turing = BigPow(10, 6)
+	Eins   = BigPow(10, 3)
+	Wei    = big.NewInt(1)
+)
+
+func CurrencyToString(num *big.Int) string {
+	switch {
+	case num.Cmp(Ether) >= 0:
+		return fmt.Sprintf("%v Ether", new(big.Int).Div(num, Ether))
+	case num.Cmp(Finney) >= 0:
+		return fmt.Sprintf("%v Finney", new(big.Int).Div(num, Finney))
+	case num.Cmp(Szabo) >= 0:
+		return fmt.Sprintf("%v Szabo", new(big.Int).Div(num, Szabo))
+	case num.Cmp(Vito) >= 0:
+		return fmt.Sprintf("%v Vito", new(big.Int).Div(num, Vito))
+	case num.Cmp(Turing) >= 0:
+		return fmt.Sprintf("%v Turing", new(big.Int).Div(num, Turing))
+	case num.Cmp(Eins) >= 0:
+		return fmt.Sprintf("%v Eins", new(big.Int).Div(num, Eins))
+	}
+
+	return fmt.Sprintf("%v Wei", num)
+}