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arikawa/voice/voicegateway/op.go
2020-05-16 23:14:49 +02:00

73 lines
1.8 KiB
Go

package voicegateway
import (
"fmt"
"sync"
"github.com/diamondburned/arikawa/utils/json"
"github.com/diamondburned/arikawa/utils/wsutil"
"github.com/pkg/errors"
)
// OPCode represents a Discord Gateway Gateway operation code.
type OPCode = wsutil.OPCode
const (
IdentifyOP OPCode = 0 // send
SelectProtocolOP OPCode = 1 // send
ReadyOP OPCode = 2 // receive
HeartbeatOP OPCode = 3 // send
SessionDescriptionOP OPCode = 4 // receive
SpeakingOP OPCode = 5 // send/receive
HeartbeatAckOP OPCode = 6 // receive
ResumeOP OPCode = 7 // send
HelloOP OPCode = 8 // receive
ResumedOP OPCode = 9 // receive
// ClientDisconnectOP OPCode = 13 // receive
)
func (c *Gateway) HandleOP(op *wsutil.OP) error {
switch op.Code {
// Gives information required to make a UDP connection
case ReadyOP:
if err := unmarshalMutex(op.Data, &c.ready, &c.mutex); err != nil {
return errors.Wrap(err, "failed to parse READY event")
}
// Gives information about the encryption mode and secret key for sending voice packets
case SessionDescriptionOP:
// ?
// Already handled by Session.
// Someone started or stopped speaking.
case SpeakingOP:
// ?
// TODO: handler in Session
// Heartbeat response from the server
case HeartbeatAckOP:
c.EventLoop.Echo()
// Hello server, we hear you! :)
case HelloOP:
// ?
// Already handled on initial connection.
// Server is saying the connection was resumed, no data here.
case ResumedOP:
wsutil.WSDebug("Gateway connection has been resumed.")
default:
return fmt.Errorf("unknown OP code %d", op.Code)
}
return nil
}
func unmarshalMutex(d []byte, v interface{}, m *sync.RWMutex) error {
m.Lock()
err := json.Unmarshal(d, v)
m.Unlock()
return err
}