very simple way of visualizing the data flowing

mockserver/replay.go

@@ -3,10 +3,13 @@
 package mockserver
 
 import (
+	"bytes"
 	"context"
+	"encoding/binary"
 	"fmt"
 	"io"
 	"os"
+	"strings"
 	"sync"
 	"time"
 	"unsafe"
@@ -64,18 +67,89 @@ func (r *Replayer) renderToTerminal(ctx context.Context) {
 	}
 
 	// NOTE: temporary until I make a better view
-	lastPercent := -1
+	var s strings.Builder
+	var bytesReader bytes.Reader
+	og := bngsdk.Outgauge{}
 
 	for {
 		select {
 		case <-ctx.Done():
 			return
 		case data := <-r.dataViewCh:
-			percent := int(float64(data.SizeRead) / float64(fileInfo.Size()) * 100)
-			if percent != lastPercent {
-				fmt.Printf("\rReplayed: %d%%", percent)
-				lastPercent = percent
+			// Reset to the start of the terminal
+			s.Reset()
+			fmt.Fprintf(os.Stdout, "\x1b[2J\x1b[H")
+
+			bytesReader.Reset(data.Data)
+			err := binary.Read(&bytesReader, binary.LittleEndian, &og)
+			if err != nil {
+				fmt.Fprintf(&s, "FAILED TO PARSE DATA\nError: %+v", err)
+				continue
 			}
+
+			percent := int(float64(data.SizeRead) / float64(fileInfo.Size()) * 100)
+			fmt.Fprintf(&s, "Replayed: %d%%\n", percent)
+			// NOTE: write a string serialization function on the SDK itself
+			fmt.Fprint(&s, "Outgauge {\n")
+			fmt.Fprintf(&s, "  Time:        %d ms\n", og.Time)
+			fmt.Fprintf(&s, "  Car:         %s\n", og.Car)
+			fmt.Fprintf(&s, "  Flags:       %b\n", og.Flags)
+			fmt.Fprintf(&s, "  Gear:        %d\n", og.Gear)
+			fmt.Fprintf(&s, "  Plid:        %d\n", og.Plid)
+			fmt.Fprintf(&s, "  Speed:       %f m/s\n", og.Speed)
+			fmt.Fprintf(&s, "  RPM:         %f RPM\n", og.RPM)
+			fmt.Fprintf(&s, "  Turbo:       %f Bar\n", og.Turbo)
+			fmt.Fprintf(&s, "  EngTemp:     %f °C\n", og.EngTemp)
+			fmt.Fprintf(&s, "  Fuel:        %f\n", og.Fuel)
+			fmt.Fprintf(&s, "  OilPressure: %f Bar\n", og.OilPressure)
+			fmt.Fprintf(&s, "  OilTemp:     %f °C\n", og.OilTemp)
+			fmt.Fprintf(&s, "  DashLights:  %b\n", og.DashLights)
+			fmt.Fprintf(&s, "  ShowLights:  %b\n", og.ShowLights)
+			fmt.Fprintf(&s, "  Throttle:    %f\n", og.Throttle)
+			fmt.Fprintf(&s, "  Brakes:      %f\n", og.Brake)
+			fmt.Fprintf(&s, "  Clutch:      %f\n", og.Clutch)
+			fmt.Fprintf(&s, "  Display1:    %s\n", og.Display1)
+			fmt.Fprintf(&s, "  Display2:    %s\n", og.Display2)
+			fmt.Fprintf(&s, "  ID:          %d\n", og.Display2)
+			fmt.Fprint(&s, "}\n\n")
+
+			fmt.Fprint(&s, "DashLights {\n")
+			fmt.Fprintf(&s, "  DL_SHIFT:      %t\n", og.DashLights&bngsdk.DL_SHIFT != 0)
+			fmt.Fprintf(&s, "  DL_FULLBEAM:   %t\n", og.DashLights&bngsdk.DL_FULLBEAM != 0)
+			fmt.Fprintf(&s, "  DL_HANDBRAKE:  %t\n", og.DashLights&bngsdk.DL_HANDBRAKE != 0)
+			fmt.Fprintf(&s, "  DL_PITSPEED:   %t\n", og.DashLights&bngsdk.DL_PITSPEED != 0)
+			fmt.Fprintf(&s, "  DL_TC:         %t\n", og.DashLights&bngsdk.DL_TC != 0)
+			fmt.Fprintf(&s, "  DL_SIGNAL_L:   %t\n", og.DashLights&bngsdk.DL_SIGNAL_L != 0)
+			fmt.Fprintf(&s, "  DL_SIGNAL_R:   %t\n", og.DashLights&bngsdk.DL_SIGNAL_R != 0)
+			fmt.Fprintf(&s, "  DL_SIGNAL_ANY: %t\n", og.DashLights&bngsdk.DL_SIGNAL_ANY != 0)
+			fmt.Fprintf(&s, "  DL_OILWARN:    %t\n", og.DashLights&bngsdk.DL_OILWARN != 0)
+			fmt.Fprintf(&s, "  DL_BATTERY:    %t\n", og.DashLights&bngsdk.DL_BATTERY != 0)
+			fmt.Fprintf(&s, "  DL_ABS:        %t\n", og.DashLights&bngsdk.DL_ABS != 0)
+			fmt.Fprintf(&s, "  DL_SPARE:      %t\n", og.DashLights&bngsdk.DL_SPARE != 0)
+			fmt.Fprint(&s, "}\n\n")
+
+			fmt.Fprint(&s, "ShowLights {\n") // Fixed typo "ShowLigths"
+			fmt.Fprintf(&s, "  DL_SHIFT:      %t\n", og.ShowLights&bngsdk.DL_SHIFT != 0)
+			fmt.Fprintf(&s, "  DL_FULLBEAM:   %t\n", og.ShowLights&bngsdk.DL_FULLBEAM != 0)
+			fmt.Fprintf(&s, "  DL_HANDBRAKE:  %t\n", og.ShowLights&bngsdk.DL_HANDBRAKE != 0)
+			fmt.Fprintf(&s, "  DL_PITSPEED:   %t\n", og.ShowLights&bngsdk.DL_PITSPEED != 0)
+			fmt.Fprintf(&s, "  DL_TC:         %t\n", og.ShowLights&bngsdk.DL_TC != 0)
+			fmt.Fprintf(&s, "  DL_SIGNAL_L:   %t\n", og.ShowLights&bngsdk.DL_SIGNAL_L != 0)
+			fmt.Fprintf(&s, "  DL_SIGNAL_R:   %t\n", og.ShowLights&bngsdk.DL_SIGNAL_R != 0)
+			fmt.Fprintf(&s, "  DL_SIGNAL_ANY: %t\n", og.ShowLights&bngsdk.DL_SIGNAL_ANY != 0)
+			fmt.Fprintf(&s, "  DL_OILWARN:    %t\n", og.ShowLights&bngsdk.DL_OILWARN != 0)
+			fmt.Fprintf(&s, "  DL_BATTERY:    %t\n", og.ShowLights&bngsdk.DL_BATTERY != 0)
+			fmt.Fprintf(&s, "  DL_ABS:        %t\n", og.ShowLights&bngsdk.DL_ABS != 0)
+			fmt.Fprintf(&s, "  DL_SPARE:      %t\n", og.ShowLights&bngsdk.DL_SPARE != 0)
+			fmt.Fprint(&s, "}\n\n")
+
+			fmt.Fprint(&s, "Flags {\n")
+			fmt.Fprintf(&s, "  OG_TURBO (Has Turbo): %t\n", og.Flags&bngsdk.OG_TURBO != 0)
+			fmt.Fprintf(&s, "  OG_KM (Is Metric):   %t\n", og.Flags&bngsdk.OG_KM != 0)
+			fmt.Fprintf(&s, "  OG_BAR (Pressure):   %t\n", og.Flags&bngsdk.OG_BAR != 0)
+			fmt.Fprint(&s, "}")
+
+			fmt.Fprint(os.Stdout, s.String())
 		}
 	}
 }