75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
package artwork
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import (
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"context"
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"crypto/md5"
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"fmt"
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"io"
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"strings"
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"time"
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"github.com/navidrome/navidrome/conf"
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"github.com/navidrome/navidrome/core"
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"github.com/navidrome/navidrome/core/ffmpeg"
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"github.com/navidrome/navidrome/model"
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)
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type albumArtworkReader struct {
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cacheKey
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a *artwork
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em core.ExternalMetadata
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album model.Album
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}
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func newAlbumArtworkReader(ctx context.Context, artwork *artwork, artID model.ArtworkID, em core.ExternalMetadata) (*albumArtworkReader, error) {
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al, err := artwork.ds.Album(ctx).Get(artID.ID)
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if err != nil {
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return nil, err
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}
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a := &albumArtworkReader{
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a: artwork,
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em: em,
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album: *al,
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}
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a.cacheKey.artID = artID
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a.cacheKey.lastUpdate = al.UpdatedAt
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return a, nil
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}
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func (a *albumArtworkReader) Key() string {
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var hash [16]byte
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if conf.Server.EnableExternalServices {
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hash = md5.Sum([]byte(conf.Server.Agents + conf.Server.CoverArtPriority))
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}
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return fmt.Sprintf(
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"%s.%x.%t",
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a.cacheKey.Key(),
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hash,
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conf.Server.EnableExternalServices,
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)
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}
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func (a *albumArtworkReader) LastUpdated() time.Time {
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return a.album.UpdatedAt
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}
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func (a *albumArtworkReader) Reader(ctx context.Context) (io.ReadCloser, string, error) {
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var ff = a.fromCoverArtPriority(ctx, a.a.ffmpeg, conf.Server.CoverArtPriority)
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return selectImageReader(ctx, a.artID, ff...)
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}
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func (a *albumArtworkReader) fromCoverArtPriority(ctx context.Context, ffmpeg ffmpeg.FFmpeg, priority string) []sourceFunc {
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var ff []sourceFunc
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for _, pattern := range strings.Split(strings.ToLower(priority), ",") {
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pattern = strings.TrimSpace(pattern)
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switch {
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case pattern == "embedded":
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ff = append(ff, fromTag(a.album.EmbedArtPath), fromFFmpegTag(ctx, ffmpeg, a.album.EmbedArtPath))
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case pattern == "external":
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ff = append(ff, fromAlbumExternalSource(ctx, a.album, a.em))
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case a.album.ImageFiles != "":
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ff = append(ff, fromExternalFile(ctx, a.album.ImageFiles, pattern))
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}
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}
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return ff
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}
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