protocol

type Instance interface {
	// Key returns a unique identifier for the instance.
	Key() string
	// List returns the list of available songs, possibly cached.
	List() (SongList, error)
	// Refresh forces an update of the song list.
	Refresh() (SongList, error)
	// Info returns information about one song.
	Info(codec.ID) (*codec.SongInfo, error)
	// GetSong returns a playable song.
	GetSong(codec.ID) (codec.Song, error)
}

type Params struct {
	Params   []string `json:",omitempty"`
	OAuthURL string   `json:",omitempty"`
}

type Protocol struct {
	*Params
	OAuth *oauth2.Config
	// contains filtered or unexported fields
}

type SongList map[codec.ID]*codec.SongInfo