Shows progress and also added a loop flag so that it can go around and around

mockserver/reader.go

@@ -0,0 +1,55 @@
+package mockserver
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/gob"
+	"io"
+
+	sdk "github.com/ESilva15/gobngsdk"
+)
+
+type GobReader struct {
+	TotalRead int
+	File      io.ReadSeeker
+	Dec       *gob.Decoder
+}
+
+func NewGobReader(r io.ReadSeeker) *GobReader {
+	return &GobReader{
+		TotalRead: 0,
+		File:      r,
+		Dec:       gob.NewDecoder(r),
+	}
+}
+
+func (g *GobReader) Reset() error {
+	_, err := g.File.Seek(0, io.SeekStart)
+	if err != nil {
+		return err
+	}
+
+	g.Dec = gob.NewDecoder(g.File)
+	g.TotalRead = 0
+
+	return nil
+}
+
+func (g *GobReader) Next() ([]byte, error) {
+	var og sdk.Outgauge
+
+	err := g.Dec.Decode(&og)
+	if err != nil {
+		return nil, err
+	}
+
+	buf := new(bytes.Buffer)
+	err = binary.Write(buf, binary.LittleEndian, &og)
+	if err != nil {
+		return nil, err
+	}
+
+	g.TotalRead += len(buf.Bytes())
+
+	return buf.Bytes(), nil
+}