feat(song): add cover image

internal/deezer/tag.go

@@ -2,6 +2,8 @@ package deezer
 
 import (
 	"fmt"
+	"io"
+	"net/http"
 	"path"
 	"strconv"
 	"strings"
@@ -10,6 +12,11 @@ import (
 )
 
 func AddTags(album *Album, song *Song, pathFile string) error {
+	cover, err := getCoverImage(album.Data.CoverID)
+	if err != nil {
+		return err
+	}
+
 	ext := path.Ext(pathFile)
 	if ext == ".mp3" {
 		tag, err := id3v2.Open(pathFile, id3v2.Options{Parse: true})
@@ -46,12 +53,36 @@ func AddTags(album *Album, song *Song, pathFile string) error {
 		addTXXXTag(tag, "ISRC", song.ISRC)
 		addTXXXTag(tag, "Explicit lyrics", song.ExplicitLyrics)
 
+		frame := id3v2.PictureFrame{
+			Encoding:    tag.DefaultEncoding(),
+			MimeType:    "image/jpeg",
+			PictureType: id3v2.PTFrontCover,
+			Description: "Cover",
+			Picture:     cover,
+		}
+		tag.AddAttachedPicture(frame)
+
 		return tag.Save()
 	}
 
 	return nil
 }
 
+func getCoverImage(id string) ([]byte, error) {
+	url := fmt.Sprintf("https://e-cdn-images.dzcdn.net/images/cover/%s/500x500-000000-80-0-0.jpg", id)
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+	}
+
+	return io.ReadAll(resp.Body)
+}
+
 func addTag(tag *id3v2.Tag, name, value string) {
 	if value != "" {
 		tag.AddTextFrame(name, tag.DefaultEncoding(), value)