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perf(extensions): streamline prepared download work

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This commit is contained in:
zarzet
2026-08-29 23:47:21 +07:00
parent f21f47b2bd
commit bb1be4fdb4
8 changed files with 490 additions and 15 deletions
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go_backend/extension_fallback.go
+39 -2
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@@ -28,6 +28,7 @@ func attemptExtensionDownload(
) (resp *DownloadResponse, cancelledOuter bool) {
req.DownloadProvider = strings.TrimSpace(providerLabel)
req.ProviderTrackID = strings.TrimSpace(trackID)
preparedContext = extensionPreparedDownloadContext(req, preparedContext)
outputPath := buildOutputPathForExtension(req, ext)
if shouldReuseExistingOutput(req, outputPath) {
result := DownloadResult{FilePath: outputPath}
@@ -217,6 +218,7 @@ func attemptVerifiedResumeBeforeMetadata(
req.QobuzID,
req.DurationMS,
req.ItemID,
extensionAvailabilityTrackContext(req),
)
if shouldAbortCancelledFallback(req.ItemID, err) {
return nil, true
@@ -296,6 +298,41 @@ func attemptVerifiedResumeBeforeMetadata(
return nil, false
}
func extensionAvailabilityTrackContext(req DownloadRequest) map[string]any {
return map[string]any{
"id": req.ProviderTrackID,
"name": req.TrackName,
"artists": req.ArtistName,
"album_name": req.AlbumName,
"album_artist": req.AlbumArtist,
"cover_url": req.CoverURL,
"release_date": req.ReleaseDate,
"track_number": req.TrackNumber,
"total_tracks": req.TotalTracks,
"disc_number": req.DiscNumber,
"total_discs": req.TotalDiscs,
"duration_ms": req.DurationMS,
"isrc": req.ISRC,
"genre": req.Genre,
"label": req.Label,
"copyright": req.Copyright,
"composer": req.Composer,
"comment": req.Comment,
"explicit": req.Explicit,
"album_type": req.AlbumType,
"upc": req.UPC,
}
}
func extensionPreparedDownloadContext(req DownloadRequest, prepared map[string]any) map[string]any {
merged := make(map[string]any, len(prepared)+1)
for key, value := range prepared {
merged[key] = value
}
merged["host_track"] = extensionAvailabilityTrackContext(req)
return merged
}
func buildOutputStorageFailureResponse(
providerID string,
err error,
@@ -407,7 +444,7 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
ext, err := extManager.GetExtension(req.Source)
if err == nil && ext.Enabled && ext.Error == "" && ext.Manifest.IsDownloadProvider() {
provider := newExtensionProviderWrapper(ext)
availability, availErr := provider.CheckAvailabilityForItemID(req.ISRC, req.TrackName, req.ArtistName, req.SpotifyID, req.DeezerID, req.TidalID, req.QobuzID, req.DurationMS, req.ItemID)
availability, availErr := provider.CheckAvailabilityForItemID(req.ISRC, req.TrackName, req.ArtistName, req.SpotifyID, req.DeezerID, req.TidalID, req.QobuzID, req.DurationMS, req.ItemID, extensionAvailabilityTrackContext(req))
if shouldAbortCancelledFallback(req.ItemID, availErr) {
return nil, ErrDownloadCancelled
}
@@ -631,7 +668,7 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
provider := newExtensionProviderWrapper(ext)
availability, err := provider.CheckAvailabilityForItemID(req.ISRC, req.TrackName, req.ArtistName, req.SpotifyID, req.DeezerID, req.TidalID, req.QobuzID, req.DurationMS, req.ItemID)
availability, err := provider.CheckAvailabilityForItemID(req.ISRC, req.TrackName, req.ArtistName, req.SpotifyID, req.DeezerID, req.TidalID, req.QobuzID, req.DurationMS, req.ItemID, extensionAvailabilityTrackContext(req))
if shouldAbortCancelledFallback(req.ItemID, err) {
return nil, ErrDownloadCancelled
}