fixed rail & operation names

api/gateway/chain/client/rail_gateway.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"strings"
 
+	"github.com/tech/sendico/pkg/discovery"
 	"github.com/tech/sendico/pkg/merrors"
 	"github.com/tech/sendico/pkg/model/account_role"
 	"github.com/tech/sendico/pkg/payments/rail"
@@ -29,9 +30,9 @@ type chainRailGateway struct {
 
 // NewRailGateway wraps a chain gateway client into a rail gateway adapter.
 func NewRailGateway(client Client, cfg RailGatewayConfig) rail.RailGateway {
-	railName := strings.ToUpper(strings.TrimSpace(cfg.Rail))
+	railName := discovery.NormalizeRail(cfg.Rail)
 	if railName == "" {
-		railName = "CRYPTO"
+		railName = discovery.RailCrypto
 	}
 	return &chainRailGateway{
 		client:       client,

api/gateway/chain/client/rail_gateway_test.go

@@ -0,0 +1,21 @@
+package client
+
+import (
+	"testing"
+
+	"github.com/tech/sendico/pkg/discovery"
+)
+
+func TestNewRailGateway_NormalizesRail(t *testing.T) {
+	gw := NewRailGateway(nil, RailGatewayConfig{Rail: "card_payout", Network: "tron"})
+	if got, want := gw.Rail(), discovery.RailCardPayout; got != want {
+		t.Fatalf("unexpected rail: got=%q want=%q", got, want)
+	}
+}
+
+func TestNewRailGateway_DefaultsToCryptoRail(t *testing.T) {
+	gw := NewRailGateway(nil, RailGatewayConfig{})
+	if got, want := gw.Rail(), discovery.RailCrypto; got != want {
+		t.Fatalf("unexpected rail: got=%q want=%q", got, want)
+	}
+}