Refactor Exchange code

exchanges/exchange.go

@@ -1,7 +1,14 @@
 package exchange
 
 import (
+	"log"
 	"time"
+
+	"github.com/thrasher-/gocryptotrader/common"
+)
+
+const (
+	WarningBase64DecryptSecretKeyFailed = "WARNING -- Exchange %s unable to base64 decode secret key.. Disabling Authenticated API support."
 )
 
 type ExchangeBase struct {
@@ -19,3 +26,33 @@ type ExchangeBase struct {
 	WebsocketURL                string
 	APIUrl                      string
 }
+
+func (e *ExchangeBase) GetName() string {
+	return e.Name
+}
+func (e *ExchangeBase) GetEnabledCurrencies() []string {
+	return e.EnabledPairs
+}
+func (e *ExchangeBase) SetEnabled(enabled bool) {
+	e.Enabled = enabled
+}
+
+func (e *ExchangeBase) IsEnabled() bool {
+	return e.Enabled
+}
+
+func (e *ExchangeBase) SetAPIKeys(APIKey, APISecret, ClientID string, b64Decode bool) {
+	e.APIKey = APIKey
+	e.ClientID = ClientID
+
+	if b64Decode {
+		result, err := common.Base64Decode(APISecret)
+		if err != nil {
+			e.AuthenticatedAPISupport = false
+			log.Printf(WarningBase64DecryptSecretKeyFailed, e.Name)
+		}
+		e.APISecret = string(result)
+	} else {
+		e.APISecret = APISecret
+	}
+}