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package lastfm
import (
"encoding/json"
"errors"
"strings"
"github.com/markbates/goth"
)
// Session stores data during the auth process with Lastfm.
type Session struct {
AuthURL string
AccessToken string
Login string
}
// GetAuthURL will return the URL set by calling the `BeginAuth` function on the LastFM provider.
func (s Session) GetAuthURL() (string, error) {
if s.AuthURL == "" {
return "", errors.New(goth.NoAuthUrlErrorMessage)
}
return s.AuthURL, nil
}
// Authorize the session with LastFM and return the access token to be stored for future use.
func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string, error) {
p := provider.(*Provider)
sess, err := p.GetSession(params.Get("token"))
if err != nil {
return "", err
}
s.AccessToken = sess["token"]
s.Login = sess["login"]
return sess["token"], err
}
// Marshal the session into a string
func (s Session) Marshal() string {
b, _ := json.Marshal(s)
return string(b)
}
func (s Session) String() string {
return s.Marshal()
}
// UnmarshalSession will unmarshal a JSON string into a session.
func (p *Provider) UnmarshalSession(data string) (goth.Session, error) {
sess := &Session{}
err := json.NewDecoder(strings.NewReader(data)).Decode(sess)
return sess, err
}
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