initial commit

internal/metadata.go

@@ -0,0 +1,65 @@
+package ripsort
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/dhowden/tag"
+)
+
+type metadata struct {
+	Format      tag.Format
+	FileType    tag.FileType
+	Title       string
+	Artist      []string
+	Album       string
+	AlbumArtist []string
+	Composer    []string
+	Genre       string
+	Year        int
+	Track       int
+	TotalTracks int
+	Disc        int
+	TotalDiscs  int
+	Lyrics      string
+	Comment     string
+	HasPicture  bool
+}
+
+func ReadAudioTags(filePath string) (*metadata, error) {
+	f, err := os.Open(filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open file: %w", err)
+	}
+	defer f.Close()
+
+	m, err := tag.ReadFrom(f)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read tags: %w", err)
+	}
+
+	track, totalTracks := m.Track()
+	disc, totalDiscs := m.Disc()
+
+	info := &metadata{
+		Format:      m.Format(),
+		FileType:    m.FileType(),
+		Title:       m.Title(),
+		Artist:      strings.Split(m.Artist(), ";"),
+		Album:       m.Album(),
+		AlbumArtist: strings.Split(m.AlbumArtist(), ";"),
+		Composer:    strings.Split(m.Composer(), ";"),
+		Genre:       m.Genre(),
+		Year:        m.Year(),
+		Track:       track,
+		TotalTracks: totalTracks,
+		Disc:        disc,
+		TotalDiscs:  totalDiscs,
+		Lyrics:      m.Lyrics(),
+		Comment:     m.Comment(),
+		HasPicture:  m.Picture() != nil,
+	}
+
+	return info, nil
+}