FIX: fix dca2 panic problem

pkg/strategy/dca2/active_order_recover.go

@@ -52,10 +52,11 @@ func (s *Strategy) recoverActiveOrders(ctx context.Context) error {
 	}
 
 	opts := common.SyncActiveOrdersOpts{
-		Logger:          s.logger,
-		Exchange:        s.ExchangeSession.Exchange,
-		ActiveOrderBook: activeOrders,
-		OpenOrders:      openOrders,
+		Logger:            s.logger,
+		Exchange:          s.ExchangeSession.Exchange,
+		OrderQueryService: s.orderQueryService,
+		ActiveOrderBook:   activeOrders,
+		OpenOrders:        openOrders,
 	}
 
 	return common.SyncActiveOrders(ctx, opts)

pkg/strategy/dca2/strategy.go

@@ -94,6 +94,7 @@ type Strategy struct {
 	nextStateC           chan State
 	state                State
 	roundCollector       *RoundCollector
+	orderQueryService    types.ExchangeOrderQueryService
 	takeProfitPrice      fixedpoint.Value
 	startTimeOfNextRound time.Time
 	nextRoundPaused      bool
@@ -193,6 +194,13 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 		s.OrderGroupID = util.FNV32(instanceID) % math.MaxInt32
 	}
 
+	// orderQueryService
+	if service, ok := s.ExchangeSession.Exchange.(types.ExchangeOrderQueryService); ok {
+		s.orderQueryService = service
+	} else {
+		return fmt.Errorf("exchange %s doesn't support ExchangeOrderQueryService", s.ExchangeSession.ExchangeName)
+	}
+
 	// round collector
 	s.roundCollector = NewRoundCollector(s.logger, s.Symbol, s.OrderGroupID, s.ExchangeSession.Exchange)
 	if s.roundCollector == nil {