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package main
// The spotify backend is based on the librespot-golang code released under MIT
// license.
// Authors of the librespot-golang code are:
// Copyright (c) 2015 Paul Lietar
// Copyright (c) 2015 badfortrains
// Copyright (c) 2018 Guillaume "xplodwild" Lesniak
import (
"errors"
"os"
// "github.com/librespot-org/librespot-golang/Spotify"
"github.com/librespot-org/librespot-golang/librespot"
"github.com/librespot-org/librespot-golang/librespot/core"
// "github.com/librespot-org/librespot-golang/librespot/utils"
"github.com/xlab/portaudio-go/portaudio"
// "github.com/xlab/vorbis-go/decoder"
)
const (
deviceName = "wrms"
// The number of samples per channel in the decoded audio
samplesPerChannel = 2048
// The samples bit depth
bitDepth = 16
// The samples format
sampleFormat = portaudio.PaFloat32
)
type SpotifyBackend struct {
session *core.Session
}
func NewSpotify() (*SpotifyBackend, error) {
spotify := SpotifyBackend{}
if err := portaudio.Initialize(); paError(err) {
return nil, errors.New(paErrorText(err))
}
var err error
username := os.Getenv("WRMS_SPOTIFY_USER")
password := os.Getenv("WRMS_SPOTIFY_PASSWORD")
if username == "" || password == "" {
return nil, errors.New("User and password for spotify must be provided")
}
spotify.session, err = librespot.Login(username, password, deviceName)
if err != nil {
return nil, err
}
return &spotify, nil
}
func (spotify *SpotifyBackend) Play(song Song) {
}
func (spotify *SpotifyBackend) Pause() {
}
func (spotify *SpotifyBackend) Search(keyword string) []Song {
return []Song{}
}
// PortAudio helpers
func paError(err portaudio.Error) bool {
return portaudio.ErrorCode(err) != portaudio.PaNoError
}
func paErrorText(err portaudio.Error) string {
return "PortAudio error: " + portaudio.GetErrorText(err)
}
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