Initial commit

Program.cs

@@ -0,0 +1,97 @@
+namespace SpotiGrabber;
+using SpotifyAPI.Web;
+using System.Diagnostics;
+using YoutubeExplode;
+using YoutubeExplode.Videos.Streams;
+
+class Program
+{
+	static SpotifyClient SpotiClient = null!;
+	static YoutubeClient YtClient = new();
+
+	static YouTubeTrackMatcher TrackMatcher = new(YtClient);
+
+	public static string? ExtractSpotifyId(string url) 
+	{ 
+		var match = System.Text.RegularExpressions.Regex.Match(url, @"(?:open\.spotify\.com/|spotify:)(?:intl-[a-z]{2}/)?(?:track|playlist|album)[/:]([a-zA-Z0-9]+)", 
+			System.Text.RegularExpressions.RegexOptions.IgnoreCase); 
+		return match.Success ? match.Groups[1].Value : null; 
+	}
+
+	static void Main(string[] args)
+	{
+		MainAsync(args).GetAwaiter().GetResult();
+	}
+
+	static async Task MainAsync(string[] args)
+	{
+		string token = File.ReadAllText("token.txt");
+		SpotiClient = new(token);
+
+		if (args.Length == 0)
+		{
+			Console.WriteLine("Please provide spotify link!");
+			return;
+		}
+
+		string spotiString = args[0];
+		string id = ExtractSpotifyId(spotiString)!;
+
+		if (spotiString.Contains("track"))
+			await ExportSingleTrack(id);
+		else if (spotiString.Contains("playlist"))
+			await ExportPlaylist(id);
+		else
+			Console.WriteLine("Link not supported!");
+	}
+
+	static async Task ExportSingleTrack(string id)
+	{
+		var track = await SpotiClient.Tracks.Get(id);
+		await InternalExportTrack(track, $"{track.Artists.First().Name} - {track.Name}");
+	}
+
+	static async Task ExportPlaylist(string id)
+	{
+		var playlist = await SpotiClient.Playlists.Get(id);
+		var trackPage = playlist.Items!;
+
+		Directory.CreateDirectory($"./{playlist.Name}");
+
+		using var semaphore = new SemaphoreSlim(5);
+		var tasks = new List<Task>();
+		int index = 0;
+
+		await foreach (var playlistTrack in SpotiClient.Paginate(trackPage))
+		{
+			if (playlistTrack.Item is not FullTrack track)
+				continue;
+
+			int currentIndex = index++;
+
+			await semaphore.WaitAsync();
+
+			tasks.Add(Task.Run(async () =>
+			{
+				try
+				{
+					await InternalExportTrack(track,$"./{playlist.Name}/[{currentIndex}] {track.Artists.First().Name} - {track.Name}");
+				}
+				finally
+				{
+					semaphore.Release();
+				}
+			}));
+		}
+
+		await Task.WhenAll(tasks);
+	}
+
+	static async Task InternalExportTrack(FullTrack track, string outputName)
+	{
+		var result = (await TrackMatcher.SearchAsync(track, 3)).First();
+		var manifests = await YtClient.Videos.Streams.GetManifestAsync(result.Video.Id);
+		var streamInfo = manifests.GetAudioOnlyStreams().GetWithHighestBitrate();
+		await Process.Start("ffmpeg.exe", $"-hide_banner -i \"{streamInfo.Url}\" -n \"{outputName}.mp3\"").WaitForExitAsync();
+	}
+}