fixup! GateIO: Split asset.Futures into CoinM and USDT

exchanges/gateio/gateio_wrapper.go

@@ -675,7 +675,7 @@ func (g *Gateio) UpdateOrderbook(ctx context.Context, p currency.Pair, a asset.I
 	if err != nil {
 		return nil, err
 	}
-	var orderbookNew *Orderbook
+	var o *Orderbook
 	switch a {
 	case asset.Spot, asset.Margin, asset.CrossMargin:
 		var available bool
@@ -686,15 +686,19 @@ func (g *Gateio) UpdateOrderbook(ctx context.Context, p currency.Pair, a asset.I
 		if a != asset.Spot && !available {
 			return nil, fmt.Errorf("%v instrument %v does not have orderbook data", a, p)
 		}
-		orderbookNew, err = g.GetOrderbook(ctx, p.String(), "", 0, true)
-	case asset.CoinMarginedFutures:
-		orderbookNew, err = g.GetFuturesOrderbook(ctx, currency.BTC, p.String(), "", 0, true)
-	case asset.USDTMarginedFutures:
-		orderbookNew, err = g.GetFuturesOrderbook(ctx, currency.USDT, p.String(), "", 0, true)
-	case asset.DeliveryFutures:
-		orderbookNew, err = g.GetDeliveryOrderbook(ctx, currency.USDT, "", p, 0, true)
+		o, err = g.GetOrderbook(ctx, p.String(), "", 0, true)
+	case asset.CoinMarginedFutures, asset.USDTMarginedFutures, asset.DeliveryFutures:
+		settle, err := getSettlementCurrency(a, p)
+		if err != nil {
+			return nil, err
+		}
+		if a == asset.DeliveryFutures {
+			o, err = g.GetDeliveryOrderbook(ctx, settle, "", p, 0, true)
+		} else {
+			o, err = g.GetFuturesOrderbook(ctx, settle, p.String(), "", 0, true)
+		}
 	case asset.Options:
-		orderbookNew, err = g.GetOptionsOrderbook(ctx, p, "", 0, true)
+		o, err = g.GetOptionsOrderbook(ctx, p, "", 0, true)
 	default:
 		return nil, fmt.Errorf("%w %v", asset.ErrNotSupported, a)
 	}
@@ -706,21 +710,21 @@ func (g *Gateio) UpdateOrderbook(ctx context.Context, p currency.Pair, a asset.I
 		Asset:           a,
 		VerifyOrderbook: g.CanVerifyOrderbook,
 		Pair:            p.Upper(),
-		LastUpdateID:    orderbookNew.ID,
-		LastUpdated:     orderbookNew.Update.Time(),
+		LastUpdateID:    o.ID,
+		LastUpdated:     o.Update.Time(),
 	}
-	book.Bids = make(orderbook.Tranches, len(orderbookNew.Bids))
-	for x := range orderbookNew.Bids {
+	book.Bids = make(orderbook.Tranches, len(o.Bids))
+	for x := range o.Bids {
 		book.Bids[x] = orderbook.Tranche{
-			Amount: orderbookNew.Bids[x].Amount,
-			Price:  orderbookNew.Bids[x].Price.Float64(),
+			Amount: o.Bids[x].Amount,
+			Price:  o.Bids[x].Price.Float64(),
 		}
 	}
-	book.Asks = make(orderbook.Tranches, len(orderbookNew.Asks))
-	for x := range orderbookNew.Asks {
+	book.Asks = make(orderbook.Tranches, len(o.Asks))
+	for x := range o.Asks {
 		book.Asks[x] = orderbook.Tranche{
-			Amount: orderbookNew.Asks[x].Amount,
-			Price:  orderbookNew.Asks[x].Price.Float64(),
+			Amount: o.Asks[x].Amount,
+			Price:  o.Asks[x].Price.Float64(),
 		}
 	}
 	err = book.Process()