add lastfm get user info method

scrobble/lastfm/model.go

@@ -13,6 +13,7 @@ type (
 		SimilarTracks  SimilarTracks  `xml:"similartracks"`
 		SimilarArtists SimilarArtists `xml:"similarartists"`
 		LovedTracks    LovedTracks    `xml:"lovedtracks"`
+		User           User           `xml:"user"`
 	}
 
 	Session struct {
@@ -112,4 +113,30 @@ type (
 			Artist Artist `xml:"artist"`
 		} `xml:"track"`
 	}
+
+	User struct {
+		Text     string `xml:",chardata"`
+		Name     string `xml:"name"`
+		Realname string `xml:"realname"`
+		Image    []struct {
+			Text string `xml:",chardata"`
+			Size string `xml:"size,attr"`
+		} `xml:"image"`
+		URL        string `xml:"url"`
+		Country    string `xml:"country"`
+		Age        string `xml:"age"`
+		Gender     string `xml:"gender"`
+		Subscriber string `xml:"subscriber"`
+		Playcount  string `xml:"playcount"`
+		Playlists  string `xml:"playlists"`
+		Bootstrap  string `xml:"bootstrap"`
+		Registered struct {
+			Text     string `xml:",chardata"`
+			Unixtime string `xml:"unixtime,attr"`
+		} `xml:"registered"`
+		Type        string `xml:"type"`
+		ArtistCount string `xml:"artist_count"`
+		AlbumCount  string `xml:"album_count"`
+		TrackCount  string `xml:"track_count"`
+	}
 )

scrobble/lastfm/scrobbler.go

@@ -14,8 +14,8 @@ import (
 )
 
 type Scrobbler struct {
-	db     *db.DB
-	client *Client
+	db *db.DB
+	*Client
 }
 
 var _ scrobble.Scrobbler = (*Scrobbler)(nil)
@@ -24,7 +24,7 @@ var _ scrobble.Scrobbler = (*Scrobbler)(nil)
 func NewScrobbler(db *db.DB, client *Client) *Scrobbler {
 	return &Scrobbler{
 		db:     db,
-		client: client,
+		Client: client,
 	}
 }
 
@@ -70,7 +70,7 @@ func (s *Scrobbler) Scrobble(user *db.User, track *db.Track, stamp time.Time, su
 
 	params.Add("api_sig", getParamSignature(params, secret))
 
-	_, err = s.client.makeRequest(http.MethodPost, params)
+	_, err = s.Client.makeRequest(http.MethodPost, params)
 	return err
 }
 
@@ -94,9 +94,35 @@ func (s *Scrobbler) LoveTrack(user *db.User, track *db.Track) error {
 	params.Add("artist", track.TagTrackArtist)
 	params.Add("api_key", apiKey)
 	params.Add("sk", user.LastFMSession)
-
 	params.Add("api_sig", getParamSignature(params, secret))
 
-	_, err = s.client.makeRequest(http.MethodPost, params)
+	_, err = s.makeRequest(http.MethodPost, params)
 	return err
 }
+
+func (s *Scrobbler) GetCurrentUser(user *db.User) (User, error) {
+	if user.LastFMSession == "" {
+		return User{}, nil
+	}
+
+	apiKey, err := s.db.GetSetting(db.LastFMAPIKey)
+	if err != nil {
+		return User{}, fmt.Errorf("get api key: %w", err)
+	}
+	secret, err := s.db.GetSetting(db.LastFMSecret)
+	if err != nil {
+		return User{}, fmt.Errorf("get secret: %w", err)
+	}
+
+	params := url.Values{}
+	params.Add("method", "user.getInfo")
+	params.Add("api_key", apiKey)
+	params.Add("sk", user.LastFMSession)
+	params.Add("api_sig", getParamSignature(params, secret))
+
+	resp, err := s.makeRequest(http.MethodGet, params)
+	if err != nil {
+		return User{}, fmt.Errorf("making user GET: %w", err)
+	}
+	return resp.User, nil
+}