render detector as slack attachment

bbgo/binance_exchange.go

@@ -3,7 +3,7 @@ package bbgo
 import (
 	"context"
 	"github.com/adshao/go-binance"
-	"github.com/sirupsen/logrus"
+	log "github.com/sirupsen/logrus"
 	"strconv"
 	"time"
 )
@@ -27,7 +27,7 @@ func (e *BinanceExchange) SubmitOrder(ctx context.Context, order Order) error {
 	}
 
 	retOrder, err := req.Do(ctx)
-	logrus.Infof("order created: %+v", retOrder)
+	log.Infof("order created: %+v", retOrder)
 	return err
 }
 
@@ -67,6 +67,7 @@ func (e *BinanceExchange) QueryTrades(ctx context.Context, market string, startT
 
 			// trade time
 			tt := time.Unix(0, t.Time*1000000)
+
 			log.Infof("trade: %d %4s Price: % 13s Volume: % 13s %s", t.ID, side, t.Price, t.Quantity, tt)
 
 			price, err := strconv.ParseFloat(t.Price, 64)

bbgo/kline.go

@@ -335,3 +335,7 @@ func formatVolume(val float64) string {
 	return strconv.FormatFloat(val, 'f', 6, 64)
 }
 
+
+func formatFloat(val float64, prec int) string {
+	return strconv.FormatFloat(val, 'f', prec, 64)
+}

bbgo/kline_detector.go

@@ -4,7 +4,9 @@ import (
 	"fmt"
 	"github.com/adshao/go-binance"
 	"github.com/c9s/bbgo/pkg/bbgo/types"
+	"github.com/slack-go/slack"
 	"math"
+	"strconv"
 )
 
 const epsilon = 0.00000001
@@ -31,8 +33,61 @@ type KLineDetector struct {
 	Stop              bool `json:"stop"`
 }
 
-func (d *KLineDetector) String() (name string) {
-	name = fmt.Sprintf("Detector %s (%f < x < %f)", d.Interval, d.MinPriceChange, d.MaxPriceChange)
+func (d *KLineDetector) SlackAttachment() slack.Attachment {
+	var name = fmt.Sprintf("Detector %s", d.Interval)
+	if d.EnableLookBack {
+		name = fmt.Sprintf("Detector %s x %d", d.Interval, d.LookBackFrames)
+	}
+
+	if NotZero(d.MaxPriceChange) {
+		name += fmt.Sprintf(" MaxPriceChange %.2f ~ %.2f", d.MinPriceChange, d.MaxPriceChange)
+	} else {
+		name += fmt.Sprintf(" MaxPriceChange %.2f ~ NO LIMIT", d.MinPriceChange)
+	}
+
+	var fields []slack.AttachmentField
+
+	if d.EnableMinThickness {
+		fields = append(fields, slack.AttachmentField{
+			Title: "MinThickness",
+			Value: formatFloat(d.MinThickness, 4),
+			Short: true,
+		})
+	}
+
+	if d.EnableMaxShadowRatio {
+		fields = append(fields, slack.AttachmentField{
+			Title: "MaxShadowRatio",
+			Value: formatFloat(d.MaxShadowRatio, 4),
+			Short: true,
+		})
+	}
+
+	if d.EnableLookBack {
+		fields = append(fields, slack.AttachmentField{
+			Title: "LookBackFrames",
+			Value: strconv.Itoa(d.LookBackFrames),
+			Short: true,
+		})
+	}
+
+	return slack.Attachment{
+		Color:      "",
+		Fallback:   "",
+		ID:         0,
+		Title:      name,
+		Pretext:    "",
+		Text:       "",
+		Fields:     fields,
+		Footer:     "",
+		FooterIcon: "",
+		Ts:         "",
+	}
+
+}
+
+func (d *KLineDetector) String() string {
+	var name = fmt.Sprintf("Detector %s (%f < x < %f)", d.Interval, d.MinPriceChange, d.MaxPriceChange)
 
 	if d.EnableMinThickness {
 		name += fmt.Sprintf(" [MinThickness: %f]", d.MinThickness)