71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
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package metadata
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import (
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"cmp"
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"crypto/md5"
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"fmt"
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"strings"
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"github.com/navidrome/navidrome/conf"
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"github.com/navidrome/navidrome/consts"
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"github.com/navidrome/navidrome/model"
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)
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// These are the legacy ID functions that were used in the original Navidrome ID generation.
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// They are kept here for backwards compatibility with existing databases.
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func legacyTrackID(mf model.MediaFile) string {
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return fmt.Sprintf("%x", md5.Sum([]byte(mf.Path)))
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}
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func legacyAlbumID(md Metadata) string {
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releaseDate := legacyReleaseDate(md)
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albumPath := strings.ToLower(fmt.Sprintf("%s\\%s", legacyMapAlbumArtistName(md), legacyMapAlbumName(md)))
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if !conf.Server.Scanner.GroupAlbumReleases {
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if len(releaseDate) != 0 {
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albumPath = fmt.Sprintf("%s\\%s", albumPath, releaseDate)
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}
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}
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return fmt.Sprintf("%x", md5.Sum([]byte(albumPath)))
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}
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func legacyMapAlbumArtistName(md Metadata) string {
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values := []string{
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md.String(model.TagAlbumArtist),
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"",
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md.String(model.TagTrackArtist),
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consts.UnknownArtist,
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}
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if md.Bool(model.TagCompilation) {
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values[1] = consts.VariousArtists
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}
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return cmp.Or(values...)
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}
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func legacyMapAlbumName(md Metadata) string {
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return cmp.Or(
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md.String(model.TagAlbum),
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consts.UnknownAlbum,
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)
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}
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// Keep the TaggedLikePicard logic for backwards compatibility
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func legacyReleaseDate(md Metadata) string {
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// Start with defaults
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date := md.Date(model.TagRecordingDate)
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year := date.Year()
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originalDate := md.Date(model.TagOriginalDate)
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originalYear := originalDate.Year()
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releaseDate := md.Date(model.TagReleaseDate)
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releaseYear := releaseDate.Year()
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// MusicBrainz Picard writes the Release Date of an album to the Date tag, and leaves the Release Date tag empty
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taggedLikePicard := (originalYear != 0) &&
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(releaseYear == 0) &&
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(year >= originalYear)
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if taggedLikePicard {
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return string(date)
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}
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return string(releaseDate)
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}
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