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mumbledj/service.go

94 lines
2.1 KiB
Go

/*
* MumbleDJ
* By Matthieu Grieger
* service.go
* Copyright (c) 2014, 2015 Matthieu Grieger (MIT License)
*/
package main
import (
"errors"
"fmt"
"github.com/layeh/gumble/gumble"
)
// Service interface. Each service should implement these functions
type Service interface {
ServiceName() string
URLRegex(string) bool // Can service deal with URL
NewRequest(*gumble.User, string) (string, error) // Create song/playlist and add to the queue
}
// Song interface. Each service will implement these
// functions in their Song types.
type Song interface {
Download() error
Play()
Delete() error
AddSkip(string) error
RemoveSkip(string) error
SkipReached(int) bool
Submitter() string
Title() string
ID() string
Filename() string
Duration() int
Thumbnail() string
Playlist() Playlist
DontSkip() bool
SetDontSkip(bool)
}
// Playlist interface. Each service will implement these
// functions in their Playlist types.
type Playlist interface {
AddSkip(string) error
RemoveSkip(string) error
DeleteSkippers()
SkipReached(int) bool
ID() string
Title() string
}
var services = []Service{YouTube{}, SoundCloud{}}
func findServiceAndAdd(user *gumble.User, url string) error {
var urlService Service
// Checks all services to see if any can take the URL
for _, service := range services {
if service.URLRegex(url) {
urlService = service
}
}
if urlService == nil {
Verbose("Invalid_URL")
return errors.New("INVALID_URL")
} else {
oldLength := dj.queue.Len()
var title string
var err error
if title, err = urlService.NewRequest(user, url); err == nil {
dj.client.Self.Channel.Send(fmt.Sprintf(SONG_ADDED_HTML, user.Name, title), false)
// Starts playing the new song if nothing else is playing
if oldLength == 0 && dj.queue.Len() != 0 && !dj.audioStream.IsPlaying() {
if err := dj.queue.CurrentSong().Download(); err == nil {
dj.queue.CurrentSong().Play()
} else {
dj.queue.CurrentSong().Delete()
dj.queue.OnSongFinished()
return errors.New("FAILED_TO_DOWNLOAD")
}
}
} else {
dj.SendPrivateMessage(user, err.Error())
}
return err
}
}