// play returns an http handler that plays a sample
func (self *samples) play() websocket.Handler {
return func(conn *websocket.Conn) {
for {
note, err := lightning.ReadNote(conn)
if err == io.EOF {
continue
}
if err != nil {
response{false, err.Error()}.writeJSON(conn)
return
}
if samplePath, exists := self.pool[note.Sample]; !exists {
msg := fmt.Sprintf("sample %s does not exist", samplePath)
response{false, msg}.writeJSON(conn)
return
} else {
note.Sample = samplePath
}
err = self.engine.PlayNote(note)
if err != nil {
response{false, err.Error()}.writeJSON(conn)
}
response{true, "played " + note.Sample}.writeJSON(conn)
}
}
}
// samplePlay exposes a websocket endpoint for playing a sample
func (self *server) samplePlay() websocket.Handler {
return func(conn *websocket.Conn) {
for {
var res Response
note, re := lightning.ReadNote(conn)
if re != nil {
panic(re)
}
ep := self.engine.PlayNote(note)
if ep != nil {
panic(ep)
}
res = Response{"ok", "played " + note.Sample}
ew := res.writeJSON(conn)
if ew != nil {
panic(ew)
}
}
}
}