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chore: cleanup unused code and dead imports

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This commit is contained in:
zarzet
2026-01-20 02:10:10 +07:00
parent 8e9d0c3e9a
commit 03027813c1
62 changed files with 213 additions and 1326 deletions
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go_backend/deezer.go
+6 -34
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@@ -25,13 +25,12 @@ const (
deezerMaxParallelISRC = 10
)
// DeezerClient handles Deezer API interactions (no auth required)
type DeezerClient struct {
httpClient *http.Client
searchCache map[string]*cacheEntry
albumCache map[string]*cacheEntry
artistCache map[string]*cacheEntry
isrcCache map[string]string // trackID -> ISRC cache
isrcCache map[string]string
cacheMu sync.RWMutex
}
@@ -40,7 +39,6 @@ var (
deezerClientOnce sync.Once
)
// GetDeezerClient returns singleton Deezer client
func GetDeezerClient() *DeezerClient {
deezerClientOnce.Do(func() {
deezerClient = &DeezerClient{
@@ -54,7 +52,6 @@ func GetDeezerClient() *DeezerClient {
return deezerClient
}
// Deezer API response types
type deezerTrack struct {
ID int64 `json:"id"`
Title string `json:"title"`
@@ -63,7 +60,7 @@ type deezerTrack struct {
DiskNumber int `json:"disk_number"`
ISRC string `json:"isrc"`
Link string `json:"link"`
ReleaseDate string `json:"release_date"` // Sometimes at track level
ReleaseDate string `json:"release_date"`
Artist deezerArtist `json:"artist"`
Album deezerAlbumSimple `json:"album"`
Contributors []deezerArtist `json:"contributors"`
@@ -86,8 +83,8 @@ type deezerAlbumSimple struct {
CoverMedium string `json:"cover_medium"`
CoverBig string `json:"cover_big"`
CoverXL string `json:"cover_xl"`
ReleaseDate string `json:"release_date"` // Sometimes at album level
RecordType string `json:"record_type"` // album, single, ep, compile
ReleaseDate string `json:"release_date"`
RecordType string `json:"record_type"`
}
func (c *DeezerClient) convertTrack(track deezerTrack) TrackMetadata {
@@ -146,8 +143,8 @@ type deezerAlbumFull struct {
CoverXL string `json:"cover_xl"`
ReleaseDate string `json:"release_date"`
NbTracks int `json:"nb_tracks"`
RecordType string `json:"record_type"` // album, single, ep, compile
Label string `json:"label"` // Record label name
RecordType string `json:"record_type"`
Label string `json:"label"`
Genres struct {
Data []deezerGenre `json:"data"`
} `json:"genres"`
@@ -185,7 +182,6 @@ type deezerPlaylistFull struct {
} `json:"tracks"`
}
// SearchAll searches for tracks and artists on Deezer
// NOTE: ISRC is NOT fetched during search for performance - use GetTrackISRC when needed for download
func (c *DeezerClient) SearchAll(ctx context.Context, query string, trackLimit, artistLimit int) (*SearchAllResult, error) {
GoLog("[Deezer] SearchAll: query=%q, trackLimit=%d, artistLimit=%d\n", query, trackLimit, artistLimit)
@@ -230,11 +226,9 @@ func (c *DeezerClient) SearchAll(ctx context.Context, query string, trackLimit,
GoLog("[Deezer] Got %d tracks from API\n", len(trackResp.Data))
for _, track := range trackResp.Data {
// Convert directly without fetching ISRC - much faster
result.Tracks = append(result.Tracks, c.convertTrack(track))
}
// Search artists
artistURL := fmt.Sprintf("%s/artist?q=%s&limit=%d", deezerSearchURL, url.QueryEscape(query), artistLimit)
GoLog("[Deezer] Fetching artists from: %s\n", artistURL)
@@ -267,7 +261,6 @@ func (c *DeezerClient) SearchAll(ctx context.Context, query string, trackLimit,
GoLog("[Deezer] SearchAll complete: %d tracks, %d artists\n", len(result.Tracks), len(result.Artists))
// Cache result
c.cacheMu.Lock()
c.searchCache[cacheKey] = &cacheEntry{
data: result,
@@ -292,7 +285,6 @@ func (c *DeezerClient) GetTrack(ctx context.Context, trackID string) (*TrackResp
}, nil
}
// GetAlbum fetches album with tracks
// ISRC is fetched in parallel for better performance
func (c *DeezerClient) GetAlbum(ctx context.Context, albumID string) (*AlbumResponsePayload, error) {
c.cacheMu.RLock()
@@ -338,7 +330,6 @@ func (c *DeezerClient) GetAlbum(ctx context.Context, albumID string) (*AlbumResp
Label: album.Label, // From Deezer album
}
// Fetch ISRCs in parallel
isrcMap := c.fetchISRCsParallel(ctx, album.Tracks.Data)
tracks := make([]AlbumTrackMetadata, 0, len(album.Tracks.Data))
@@ -386,7 +377,6 @@ func (c *DeezerClient) GetAlbum(ctx context.Context, albumID string) (*AlbumResp
return result, nil
}
// GetArtist fetches artist with albums
func (c *DeezerClient) GetArtist(ctx context.Context, artistID string) (*ArtistResponsePayload, error) {
c.cacheMu.RLock()
if entry, ok := c.artistCache[artistID]; ok && !entry.isExpired() {
@@ -472,8 +462,6 @@ func (c *DeezerClient) GetArtist(ctx context.Context, artistID string) (*ArtistR
return result, nil
}
// GetPlaylist fetches playlist with tracks
// ISRC is fetched in parallel for better performance
func (c *DeezerClient) GetPlaylist(ctx context.Context, playlistID string) (*PlaylistResponsePayload, error) {
playlistURL := fmt.Sprintf(deezerPlaylistURL, playlistID)
@@ -496,7 +484,6 @@ func (c *DeezerClient) GetPlaylist(ctx context.Context, playlistID string) (*Pla
info.Owner.Name = playlist.Title
info.Owner.Images = playlistImage
// Fetch ISRCs in parallel
isrcMap := c.fetchISRCsParallel(ctx, playlist.Tracks.Data)
tracks := make([]AlbumTrackMetadata, 0, len(playlist.Tracks.Data))
@@ -535,15 +522,11 @@ func (c *DeezerClient) GetPlaylist(ctx context.Context, playlistID string) (*Pla
}, nil
}
// SearchByISRC searches for a track by ISRC using direct endpoint
func (c *DeezerClient) SearchByISRC(ctx context.Context, isrc string) (*TrackMetadata, error) {
// Use direct ISRC endpoint (API 2.0)
// https://api.deezer.com/2.0/track/isrc:{ISRC}
directURL := fmt.Sprintf("%s/track/isrc:%s", deezerBaseURL, isrc)
var track deezerTrack
if err := c.getJSON(ctx, directURL, &track); err != nil {
// Fallback to search if direct endpoint fails
searchURL := fmt.Sprintf("%s/track?q=isrc:%s&limit=1", deezerSearchURL, isrc)
var resp struct {
Data []deezerTrack `json:"data"`
@@ -623,7 +606,6 @@ func (c *DeezerClient) fetchISRCsParallel(ctx context.Context, tracks []deezerTr
go func(t deezerTrack) {
defer wg.Done()
// Acquire semaphore
select {
case sem <- struct{}{}:
defer func() { <-sem }()
@@ -652,7 +634,6 @@ func (c *DeezerClient) fetchISRCsParallel(ctx context.Context, tracks []deezerTr
return result
}
// GetTrackISRC fetches ISRC for a single track (with caching)
// Use this when you need ISRC for download
func (c *DeezerClient) GetTrackISRC(ctx context.Context, trackID string) (string, error) {
c.cacheMu.RLock()
@@ -662,13 +643,11 @@ func (c *DeezerClient) GetTrackISRC(ctx context.Context, trackID string) (string
}
c.cacheMu.RUnlock()
// Fetch from API
fullTrack, err := c.fetchFullTrack(ctx, trackID)
if err != nil {
return "", err
}
// Cache the result
c.cacheMu.Lock()
c.isrcCache[trackID] = fullTrack.ISRC
c.cacheMu.Unlock()
@@ -715,20 +694,17 @@ func (c *DeezerClient) getBestAlbumImage(album deezerAlbumFull) string {
return album.Cover
}
// AlbumExtendedMetadata contains genre and label information from an album
type AlbumExtendedMetadata struct {
Genre string // Comma-separated list of genres
Label string // Record label name
}
// GetAlbumExtendedMetadata fetches genre and label from a Deezer album
// Uses the album ID from a track to fetch extended metadata
func (c *DeezerClient) GetAlbumExtendedMetadata(ctx context.Context, albumID string) (*AlbumExtendedMetadata, error) {
if albumID == "" {
return nil, fmt.Errorf("empty album ID")
}
// Check cache first
cacheKey := fmt.Sprintf("album_meta:%s", albumID)
c.cacheMu.RLock()
if entry, ok := c.searchCache[cacheKey]; ok && !entry.isExpired() {
@@ -744,7 +720,6 @@ func (c *DeezerClient) GetAlbumExtendedMetadata(ctx context.Context, albumID str
return nil, fmt.Errorf("failed to fetch album: %w", err)
}
// Extract genres as comma-separated string
var genres []string
for _, g := range album.Genres.Data {
if g.Name != "" {
@@ -757,7 +732,6 @@ func (c *DeezerClient) GetAlbumExtendedMetadata(ctx context.Context, albumID str
Label: album.Label,
}
// Cache the result
c.cacheMu.Lock()
c.searchCache[cacheKey] = &cacheEntry{
data: result,
@@ -782,7 +756,6 @@ func (c *DeezerClient) GetTrackAlbumID(ctx context.Context, trackID string) (str
return fmt.Sprintf("%d", track.Album.ID), nil
}
// GetExtendedMetadataByTrackID fetches genre and label using a Deezer track ID
// This is a convenience function that first gets the album ID, then fetches album metadata
func (c *DeezerClient) GetExtendedMetadataByTrackID(ctx context.Context, trackID string) (*AlbumExtendedMetadata, error) {
albumID, err := c.GetTrackAlbumID(ctx, trackID)
@@ -837,7 +810,6 @@ func parseDeezerURL(input string) (string, string, error) {
parts := strings.Split(strings.Trim(parsed.Path, "/"), "/")
// Skip language prefix if present (e.g., /en/, /fr/)
if len(parts) > 0 && len(parts[0]) == 2 {
parts = parts[1:]
}