74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
package lastfm
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import (
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"fmt"
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"net/url"
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"strconv"
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"strings"
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"time"
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"github.com/google/uuid"
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"go.senan.xyz/gonic/db"
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"go.senan.xyz/gonic/scrobble"
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)
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type Scrobbler struct {
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db *db.DB
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client *Client
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}
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var _ scrobble.Scrobbler = (*Scrobbler)(nil)
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func NewScrobbler(db *db.DB, client *Client) *Scrobbler {
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return &Scrobbler{
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db: db,
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client: client,
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}
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}
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func (s *Scrobbler) Scrobble(user *db.User, track *db.Track, stamp time.Time, submission bool) error {
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if user.LastFMSession == "" {
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return nil
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}
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if track.Album == nil || len(track.Album.Artists) == 0 {
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return fmt.Errorf("track has no album artists")
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}
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apiKey, err := s.db.GetSetting("lastfm_api_key")
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if err != nil {
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return fmt.Errorf("get api key: %w", err)
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}
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secret, err := s.db.GetSetting("lastfm_secret")
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if err != nil {
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return fmt.Errorf("get secret: %w", err)
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}
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params := url.Values{}
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if submission {
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params.Add("method", "track.Scrobble")
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// last.fm wants the timestamp in seconds
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params.Add("timestamp", strconv.Itoa(int(stamp.Unix())))
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} else {
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params.Add("method", "track.updateNowPlaying")
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}
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params.Add("api_key", apiKey)
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params.Add("sk", user.LastFMSession)
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params.Add("artist", track.TagTrackArtist)
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params.Add("track", track.TagTitle)
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params.Add("trackNumber", strconv.Itoa(track.TagTrackNumber))
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params.Add("album", track.Album.TagTitle)
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params.Add("albumArtist", strings.Join(track.Album.ArtistsStrings(), ", "))
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params.Add("duration", strconv.Itoa(track.Length))
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// make sure we provide a valid uuid, since some users may have an incorrect mbid in their tags
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if _, err := uuid.Parse(track.TagBrainzID); err == nil {
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params.Add("mbid", track.TagBrainzID)
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}
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params.Add("api_sig", getParamSignature(params, secret))
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_, err = s.client.makeRequest("POST", params)
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return err
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}
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