refactor: use a better API to download playlists with more than 40 tracks

internal/deezer/playlist.go

@@ -8,18 +8,20 @@ import (
 )
 
 type Playlist struct {
-	Data struct {
-		Title     string `json:"TITLE"`
-		Status    int    `json:"STATUS"`
-		CollabKey string `json:"COLLAB_KEY"`
-	} `json:"DATA"`
-	Songs struct {
-		Data []*Song `json:"data"`
-	} `json:"SONGS"`
+	Results struct {
+		Data struct {
+			Title     string `json:"TITLE"`
+			Status    int    `json:"STATUS"`
+			CollabKey string `json:"COLLAB_KEY"`
+		} `json:"DATA"`
+		Songs struct {
+			Data []*Song `json:"data"`
+		} `json:"SONGS"`
+	} `json:"results"`
 }
 
-func (p *Playlist) GetURL(id string) string {
-	return "https://www.deezer.com/en/playlist/" + id
+func (p *Playlist) GetType() string {
+	return "Playlist"
 }
 
 func (p *Playlist) UnmarshalData(data []byte) error {
@@ -27,17 +29,17 @@ func (p *Playlist) UnmarshalData(data []byte) error {
 }
 
 func (p *Playlist) GetSongs() []*Song {
-	return p.Songs.Data
+	return p.Results.Songs.Data
 }
 
 func (p *Playlist) GetOutputPath(outputDir string) string {
-	p.Data.Title, _ = filenamify.Filenamify(p.Data.Title, filenamify.Options{})
-	outputPath := path.Join(outputDir, p.Data.Title)
+	p.Results.Data.Title, _ = filenamify.Filenamify(p.Results.Data.Title, filenamify.Options{})
+	outputPath := path.Join(outputDir, p.Results.Data.Title)
 	outputPath, _ = filenamify.Filenamify(outputPath, filenamify.Options{})
 
 	return outputPath
 }
 
 func (p *Playlist) GetTitle() string {
-	return p.Data.Title
+	return p.Results.Data.Title
 }