func handleCaptureEvent(camera *gphoto2go.Camera, folder string, fileName string) {
path := path.Join(viper.GetString("photos.path"), fileName)
reader := camera.FileReader(folder, fileName)
fWriter, _ := os.Create(path)
io.Copy(fWriter, reader)
fWriter.Close()
reader.Close()
bus.Publish("photo:saved", path)
}
