122 lines
2.5 KiB
Go
122 lines
2.5 KiB
Go
package main
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import (
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"io/ioutil"
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"log"
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"os"
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"path"
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"sort"
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"strings"
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"github.com/dhowden/tag"
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)
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type metadata struct {
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Title string
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Artist string
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Album string
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Track int
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}
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func readMetadata(f *os.File) *metadata {
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var metadata metadata
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m, err := tag.ReadFrom(f)
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if err != nil || m.Title() == "" {
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metadata.Title = path.Base(f.Name())
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} else {
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metadata.Title = m.Title()
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metadata.Artist = m.Artist()
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metadata.Album = m.Album()
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metadata.Track, _ = m.Track()
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}
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return &metadata
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}
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type libraryEntry struct {
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File os.FileInfo
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Path string
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Metadata *metadata
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}
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func (e *libraryEntry) String() string {
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if e.Metadata.Title != "" {
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if e.Metadata.Artist != "" {
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return e.Metadata.Artist + " - " + e.Metadata.Title
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}
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return e.Metadata.Title
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}
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return e.File.Name()
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}
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func scanFolder(scanPath string) []*libraryEntry {
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files, err := ioutil.ReadDir(scanPath)
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if err != nil {
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log.Fatalf("failed to scan %s: %s", scanPath, err)
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}
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var entries []*libraryEntry
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for _, fileInfo := range files {
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p := path.Join(scanPath, fileInfo.Name())
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b := path.Base(fileInfo.Name())
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if fileInfo.IsDir() {
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if b != "" && (b[0] != '.' || showHiddenFolders) {
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entries = append(entries, &libraryEntry{File: fileInfo, Path: p, Metadata: &metadata{Title: fileInfo.Name()}})
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}
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continue
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} else if !supportedFormat(b) {
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continue
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}
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f, err := os.Open(p)
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if err != nil {
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continue
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}
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metadata := readMetadata(f)
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f.Close()
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entries = append(entries, &libraryEntry{File: fileInfo, Path: p, Metadata: metadata})
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}
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sort.Slice(entries, func(i, j int) bool {
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if entries[i].File.IsDir() != entries[j].File.IsDir() {
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return entries[i].File.IsDir()
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}
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if entries[i].Metadata.Album != "" && strings.ToLower(entries[i].Metadata.Album) == strings.ToLower(entries[j].Metadata.Album) && (entries[i].Metadata.Track > 0 || entries[j].Metadata.Track > 0) {
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return entries[i].Metadata.Track < entries[j].Metadata.Track
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}
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return strings.ToLower(entries[i].Metadata.Album) < strings.ToLower(entries[j].Metadata.Album) && strings.ToLower(entries[i].File.Name()) < strings.ToLower(entries[j].File.Name())
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})
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return entries
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}
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func scanFolderRecursively(path string) []*libraryEntry {
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var entries []*libraryEntry
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scanFiles := scanFolder(path)
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for _, entry := range scanFiles {
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if !entry.File.IsDir() {
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continue
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}
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entries = append(entries, scanFolderRecursively(entry.Path)...)
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}
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for _, entry := range scanFiles {
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if entry.File.IsDir() {
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continue
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}
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entries = append(entries, entry)
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}
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return entries
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}
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