Modify EventOnProxyStats to include summary data

common/event/interface.go

@@ -2,6 +2,7 @@ package event
 
 import (
 	"fmt"
+	"time"
 
 	"github.com/pion/webrtc/v3"
 	"gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/v2/common/safelog"
@@ -78,11 +79,16 @@ func (e EventOnProxyConnectionOver) String() string {
 
 type EventOnProxyStats struct {
 	SnowflakeEvent
-	StatString string
+	ConnectionCount             int
+	InboundBytes, OutboundBytes int64
+	InboundUnit, OutboundUnit   string
+	SummaryInterval             time.Duration
 }
 
 func (e EventOnProxyStats) String() string {
-	return e.StatString
+	statString := fmt.Sprintf("In the last %v, there were %v completed connections. Traffic Relayed ↓ %v %v, ↑ %v %v.",
+		e.SummaryInterval.String(), e.ConnectionCount, e.InboundBytes, e.InboundUnit, e.OutboundBytes, e.OutboundUnit)
+	return statString
 }
 
 type EventOnCurrentNATTypeDetermined struct {

proxy/lib/pt_event_logger.go

@@ -1,7 +1,6 @@
 package snowflake_proxy
 
 import (
-	"fmt"
 	"io"
 	"log"
 	"time"
@@ -47,11 +46,13 @@ func (p *periodicProxyStats) OnNewSnowflakeEvent(e event.SnowflakeEvent) {
 
 func (p *periodicProxyStats) logTick() error {
 	inboundSum, outboundSum := p.bytesLogger.GetStat()
-	inbound, inboundUnit := formatTraffic(inboundSum)
-	outbound, outboundUnit := formatTraffic(outboundSum)
-	statString := fmt.Sprintf("In the last %v, there were %v completed connections. Traffic Relayed ↓ %v %v, ↑ %v %v.",
-		p.logPeriod.String(), p.connectionCount, inbound, inboundUnit, outbound, outboundUnit)
-	p.dispatcher.OnNewSnowflakeEvent(&event.EventOnProxyStats{StatString: statString})
+	e := &event.EventOnProxyStats{
+		SummaryInterval: p.logPeriod,
+		ConnectionCount: p.connectionCount,
+	}
+	e.InboundBytes, e.InboundUnit = formatTraffic(inboundSum)
+	e.OutboundBytes, e.OutboundUnit = formatTraffic(outboundSum)
+	p.dispatcher.OnNewSnowflakeEvent(e)
 	p.connectionCount = 0
 	return nil
 }