51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package taglib
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import (
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"strconv"
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"github.com/navidrome/navidrome/log"
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)
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type Parser struct{}
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type parsedTags = map[string][]string
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func (e *Parser) Parse(paths ...string) (map[string]parsedTags, error) {
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fileTags := map[string]parsedTags{}
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for _, path := range paths {
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fileTags[path] = e.extractMetadata(path)
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}
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return fileTags, nil
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}
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func (e *Parser) extractMetadata(filePath string) parsedTags {
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tags, err := Read(filePath)
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if err != nil {
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log.Warn("Error reading metadata from file. Skipping", "filePath", filePath, err)
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return nil
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}
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alternativeTags := map[string][]string{
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"title": {"titlesort"},
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"album": {"albumsort"},
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"artist": {"artistsort"},
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"tracknumber": {"trck", "_track"},
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}
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if length, ok := tags["lengthinmilliseconds"]; ok && len(length) > 0 {
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millis, _ := strconv.Atoi(length[0])
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if duration := float64(millis) / 1000.0; duration > 0 {
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tags["duration"] = []string{strconv.FormatFloat(duration, 'f', 2, 32)}
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}
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}
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for tagName, alternatives := range alternativeTags {
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for _, altName := range alternatives {
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if altValue, ok := tags[altName]; ok {
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tags[tagName] = append(tags[tagName], altValue...)
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}
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}
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}
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return tags
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}
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