feat: first working version

pkg/download.go

@@ -0,0 +1,92 @@
+package pkg
+
+import (
+	"encoding/json"
+	"fmt"
+	"strconv"
+
+	"github.com/Superredstone/spotiflac-cli/app"
+)
+
+type MetadataSong struct {
+	Track MetadataTrack `json:"track"`
+}
+
+type MetadataTrack struct {
+	SpotifyID    string `json:"spotify_id"`
+	Artists      string `json:"artists"`
+	Name         string `json:"name"`
+	AlbumName    string `json:"album_name"`
+	AlbumArtist  string `json:"album_artist"`
+	DurationMS   int    `json:"duration_ms"`
+	Images       string `json:"images"`
+	ReleaseDate  string `json:"release_date"`
+	TrackNumber  int    `json:"track_number"`
+	TotalTracks  int    `json:"total_tracks"`
+	DiscNumber   int    `json:"disc_number"`
+	TotalDiscs   int    `json:"total_discs"`
+	ExternalURLs string `json:"external_urls"`
+	Copyright    string `json:"copyright"`
+	Publisher    string `json:"publisher"`
+	Plays        string `json:"plays"`
+	IsExplicit   bool   `json:"is_explicit"`
+}
+
+type MetadataPlaylist struct {
+	TrackList []MetadataTrack `json:"track_list"`
+}
+
+func Download(application *app.App, url string) {
+	metadata, err := GetMetadata[MetadataPlaylist](application, url)
+	if err != nil {
+		fmt.Println("Unable to fetch metadata for song " + url)
+	}
+
+	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:     "tidal",
+			TrackName:   track.Name,
+			ArtistName:  track.Artists,
+			AlbumName:   track.AlbumName,
+			AlbumArtist: track.AlbumArtist,
+			ReleaseDate: track.ReleaseDate,
+			OutputDir:   "downloads/",
+			SpotifyID:   track.SpotifyID,
+		}
+		application.DownloadTrack(downloadRequest)
+	}
+}
+
+func GetMetadata[T MetadataPlaylist | MetadataSong](application *app.App, url string) (T, error) {
+	var result T
+
+	metadata, err := GetGenericMetadata(application, url)
+	if err != nil {
+		return result, nil
+	}
+
+	err = json.Unmarshal([]byte(metadata), &result)
+	if err != nil {
+		return result, nil
+	}
+
+	return result, nil
+}
+
+func GetGenericMetadata(application *app.App, url string) (string, error) {
+	metadataRequest := app.SpotifyMetadataRequest{
+		URL:     url,
+		Delay:   0,
+		Timeout: 5,
+	}
+
+	metadata, err := application.GetSpotifyMetadata(metadataRequest)
+	if err != nil {
+		return metadata, err
+	}
+
+	return metadata, nil
+}