Add a new OnEvent strategy callback

To be triggered by the application when it needs to communicate relevant events
to strategies (eg. configuration change, pause trading, etc).

strategy.go

@@ -36,5 +36,6 @@ type Strategy interface {
 	OnModify(k *Keep, e exchange.IBotExchange, x order.Modify) error
 	OnBalanceChange(k *Keep, e exchange.IBotExchange, x account.Change) error
 	OnUnrecognized(k *Keep, e exchange.IBotExchange, x interface{}) error
+	OnEvent(k *Keep, x interface{}) error
 	Deinit(k *Keep, e exchange.IBotExchange) error
 }

strategy_balances.go

@@ -139,6 +139,10 @@ func (b *BalancesStrategy) OnUnrecognized(k *Keep, e exchange.IBotExchange, x in
 	return nil
 }
 
+func (b *BalancesStrategy) OnEvent(k *Keep, x interface{}) error {
+	return nil
+}
+
 func (b *BalancesStrategy) Deinit(k *Keep, e exchange.IBotExchange) error {
 	return b.ticker.Init(k, e)
 }

strategy_dedicated.go

@@ -88,6 +88,10 @@ func (d *DedicatedStrategy) OnUnrecognized(k *Keep, e exchange.IBotExchange, x i
 	return nil
 }
 
+func (d *DedicatedStrategy) OnEvent(k *Keep, x interface{}) error {
+	return nil
+}
+
 func (d *DedicatedStrategy) Deinit(k *Keep, e exchange.IBotExchange) error {
 	if e.GetName() == d.Exchange {
 		return d.Wrapped.Deinit(k, e)

strategy_history.go

@@ -151,6 +151,10 @@ func (r *HistoryStrategy) OnUnrecognized(k *Keep, e exchange.IBotExchange, x int
 	return nil
 }
 
+func (r *HistoryStrategy) OnEvent(k *Keep, x interface{}) error {
+	return nil
+}
+
 func (r *HistoryStrategy) Deinit(k *Keep, e exchange.IBotExchange) error {
 	return nil
 }

strategy_root.go

@@ -111,6 +111,10 @@ func (m *RootStrategy) OnUnrecognized(k *Keep, e exchange.IBotExchange, x interf
 	return m.each(func(s Strategy) error { return s.OnUnrecognized(k, e, x) })
 }
 
+func (m *RootStrategy) OnEvent(k *Keep, x interface{}) error {
+	return m.each(func(s Strategy) error { return s.OnEvent(k, x) })
+}
+
 func (m *RootStrategy) Deinit(k *Keep, e exchange.IBotExchange) error {
 	return m.each(func(s Strategy) error { return s.Deinit(k, e) })
 }

strategy_ticker.go

@@ -76,6 +76,10 @@ func (s *TickerStrategy) OnUnrecognized(k *Keep, e exchange.IBotExchange, x inte
 	return nil
 }
 
+func (s *TickerStrategy) OnEvent(k *Keep, x interface{}) error {
+	return nil
+}
+
 func (s *TickerStrategy) Deinit(k *Keep, e exchange.IBotExchange) error {
 	pointer, loaded := s.tickers.LoadAndDelete(e.GetName())
 	if !loaded {

strategy_verbose.go

@@ -91,6 +91,12 @@ func (v VerboseStrategy) OnUnrecognized(k *Keep, e exchange.IBotExchange, x inte
 	return nil
 }
 
+func (v VerboseStrategy) OnEvent(k *Keep, x interface{}) error {
+	Msg(log.Info().Str("what", "event").Interface("x", x))
+
+	return nil
+}
+
 func (v VerboseStrategy) Deinit(k *Keep, e exchange.IBotExchange) error {
 	Msg(log.Info().Str("e", e.GetName()))