add trade reporter

cmd/run.go

@@ -56,8 +56,8 @@ var runCmd = &cobra.Command{
 
 		log.AddHook(slacklog.NewLogHook(slackToken, viper.GetString("slack-error-channel")))
 
-		var notifier = slacknotifier.New(slackToken)
-		_ = notifier
+		// TODO: load channel from config file
+		var notifier = slacknotifier.New(slackToken, viper.GetString("slack-channel"))
 
 		db, err := cmdutil.ConnectMySQL()
 		if err != nil {
@@ -65,6 +65,8 @@ var runCmd = &cobra.Command{
 		}
 
 		environ := bbgo.NewDefaultEnvironment(db)
+		environ.ReportTrade(notifier)
+
 		trader := bbgo.NewTrader(environ)
 
 		for _, entry := range userConfig.ExchangeStrategies {

pkg/bbgo/environment.go

@@ -72,7 +72,7 @@ func (reporter *TradeReporter) Report(trade types.Trade) {
 	var channel = reporter.getChannel(trade.Symbol)
 
 	var text = util.Render(`:handshake: {{ .Symbol }} {{ .Side }} Trade Execution @ {{ .Price  }}`, trade)
-	if err := reporter.notifier.Notify(channel, text, trade); err != nil {
+	if err := reporter.notifier.NotifyTo(channel, text, trade); err != nil {
 		log.WithError(err).Error("notifier error")
 	}
 }
@@ -84,6 +84,8 @@ type Environment struct {
 
 	tradeScanTime time.Time
 	sessions      map[string]*ExchangeSession
+
+	tradeReporter *TradeReporter
 }
 
 // NewDefaultEnvironment prepares the exchange sessions from the viper settings.
@@ -122,6 +124,11 @@ func (environ *Environment) AddExchange(name string, exchange types.Exchange) (s
 	return session
 }
 
+func (environ *Environment) ReportTrade(notifier Notifier) *TradeReporter {
+	environ.tradeReporter = NewTradeReporter(notifier)
+	return environ.tradeReporter
+}
+
 func (environ *Environment) Init(ctx context.Context) (err error) {
 	for _, session := range environ.sessions {
 		var markets types.MarketMap
@@ -138,6 +145,12 @@ func (environ *Environment) Init(ctx context.Context) (err error) {
 		}
 
 		session.markets = markets
+
+		if environ.tradeReporter != nil {
+			session.Stream.OnTrade(func(trade types.Trade) {
+				environ.tradeReporter.Report(trade)
+			})
+		}
 	}
 
 	return nil

pkg/bbgo/notifier.go

@@ -1,11 +1,16 @@
 package bbgo
 
 type Notifier interface {
-	Notify(channel, format string, args ...interface{}) error
+	NotifyTo(channel, format string, args ...interface{}) error
+	Notify(format string, args ...interface{}) error
 }
 
 type NullNotifier struct{}
 
+func (n *NullNotifier) NotifyTo(channel, format string, args ...interface{}) error {
+	return nil
+}
+
 func (n *NullNotifier) Notify(format string, args ...interface{}) error {
 	return nil
 }

pkg/bbgo/trader.go

@@ -41,7 +41,7 @@ func (m *Notifiability) AddNotifier(notifier Notifier) {
 
 func (m *Notifiability) Notify(msg string, args ...interface{}) {
 	for _, n := range m.notifiers {
-		n.Notify("", msg, args...)
+		n.NotifyTo("", msg, args...)
 	}
 }
 
@@ -164,7 +164,7 @@ func (trader *OrderExecutor) RunStrategyWithHotReload(ctx context.Context, strat
 					log.WithError(err).Error("error load config file")
 				}
 
-				trader.Notify("config reloaded, restarting trader")
+				trader.NotifyTo("config reloaded, restarting trader")
 
 				traderDone, err = trader.RunStrategy(strategyContext, strategy)
 				if err != nil {
@@ -232,22 +232,6 @@ func (trader *Trader) reportPnL() {
 }
 */
 
-/*
-func (trader *Trader) NotifyPnL(report *accounting.ProfitAndLossReport) {
-	for _, n := range trader.notifiers {
-		n.NotifyPnL(report)
-	}
-}
-*/
-
-/*
-func (trader *Trader) NotifyTrade(trade *types.Trade) {
-	for _, n := range trader.notifiers {
-		n.NotifyTrade(trade)
-	}
-}
-*/
-
 func (trader *Trader) SubmitOrder(ctx context.Context, order types.SubmitOrder) {
 	trader.Notify(":memo: Submitting %s %s %s order with quantity: %s", order.Symbol, order.Type, order.Side, order.QuantityString, order)
 

pkg/exchange/binance/stream.go

@@ -282,7 +282,7 @@ func (s *Stream) read(ctx context.Context) {
 				continue
 			}
 
-			// log.Notify("[binance] event: %+v", e)
+			// log.NotifyTo("[binance] event: %+v", e)
 			switch e := e.(type) {
 
 			case *OutboundAccountInfoEvent:

pkg/notifier/slacknotifier/slack.go

@@ -13,16 +13,18 @@ type SlackAttachmentCreator interface {
 }
 
 type Notifier struct {
-	client *slack.Client
+	client  *slack.Client
+	channel string
 }
 
 type NotifyOption func(notifier *Notifier)
 
-func New(token string, options ...NotifyOption) *Notifier {
+func New(token, channel string, options ...NotifyOption) *Notifier {
 	var client = slack.New(token, slack.OptionDebug(true))
 
 	notifier := &Notifier{
-		client:       client,
+		channel: channel,
+		client:  client,
 	}
 
 	for _, o := range options {
@@ -32,7 +34,11 @@ func New(token string, options ...NotifyOption) *Notifier {
 	return notifier
 }
 
-func (n *Notifier) Notify(channel, format string, args ...interface{}) error {
+func (n *Notifier) Notify(format string, args ...interface{}) error {
+	return n.NotifyTo(n.channel, format, args...)
+}
+
+func (n *Notifier) NotifyTo(channel, format string, args ...interface{}) error {
 	var slackAttachments []slack.Attachment
 	var slackArgsOffset = -1
 
@@ -84,7 +90,7 @@ func (n *Notifier) NotifyTrade(trade *types.Trade) {
 		logrus.WithError(err).Error("slack send error")
 	}
 }
- */
+*/
 
 /*
 func (n *Notifier) NotifyPnL(report *pnl.AverageCostPnlReport) {