fix: remove spotiflac libraries

lib/download.go

@@ -0,0 +1,91 @@
+package pkg
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+)
+
+const (
+	DEFAULT_DOWNLOAD_SERVICE       = "tidal"
+	DEFAULT_DOWNLOAD_OUTPUT_FOLDER = "."
+)
+
+func Download(app *App, url string, output_folder string, service string) error {
+	if output_folder == "" {
+		output_folder = DEFAULT_DOWNLOAD_OUTPUT_FOLDER
+	}
+
+	if service == "" {
+		service = DEFAULT_DOWNLOAD_SERVICE
+	}
+
+	if service == "amazon" || service == "qobuz" {
+		isInstalled, err := app.CheckFFmpegInstalled()
+		if err != nil {
+			return err
+		}
+
+		if !isInstalled {
+			return errors.New("FFmpeg is not installed.")
+		}
+	}
+
+	url_type := GetUrlType(url)
+
+	switch url_type {
+	case UrlTypeTrack:
+		metadata, err := GetMetadata[MetadataSong](app, url)
+		if err != nil {
+			return err
+		}
+
+		track := metadata.Track
+		downloadRequest := app.DownloadRequest{
+			Service:     service,
+			TrackName:   track.Name,
+			ArtistName:  track.Artists,
+			AlbumName:   track.AlbumName,
+			AlbumArtist: track.AlbumArtist,
+			ReleaseDate: track.ReleaseDate,
+			CoverURL:    track.Images,
+			OutputDir:   output_folder,
+			SpotifyID:   track.SpotifyID,
+		}
+
+		_, err = app.DownloadTrack(downloadRequest)
+		return err
+	case UrlTypePlaylist:
+		metadata, err := GetMetadata[MetadataPlaylist](app, url)
+		if err != nil {
+			return err
+		}
+
+		trackListSize := strconv.Itoa(len(metadata.TrackList))
+		for idx, track := range metadata.TrackList {
+			fmt.Println("[" + strconv.Itoa(idx+1) + "/" + trackListSize + "] " + track.Name + " - " + track.Artists)
+
+			downloadRequest := app.DownloadRequest{
+				Service:      service,
+				TrackName:    track.Name,
+				ArtistName:   track.Artists,
+				AlbumName:    track.AlbumName,
+				AlbumArtist:  track.AlbumArtist,
+				ReleaseDate:  track.ReleaseDate,
+				CoverURL:     track.Images,
+				OutputDir:    output_folder,
+				SpotifyID:    track.SpotifyID,
+				PlaylistName: metadata.Info.Owner.Name,
+			}
+
+			_, err = app.DownloadTrack(downloadRequest)
+			if err != nil {
+				fmt.Println("Unable to download " + track.Name + " - " + track.Artists)
+			}
+		}
+
+		return nil
+	}
+
+	return errors.New("Invalid URL.")
+}