Spotify.NET/SpotifyAPI.Web.Examples.CLI/Program.cs

using System;
using System.Threading.Tasks;
using SpotifyAPI.Web.Auth;
using SpotifyAPI.Web.Enums;
using SpotifyAPI.Web.Models;

namespace SpotifyAPI.Web.Examples.CLI
{
  internal static class Program
  {
    private static string _clientId = ""; //"";
    private static string _secretId = ""; //"";

    // ReSharper disable once UnusedParameter.Local
    public static void Main(string[] args)
    {
      _clientId = string.IsNullOrEmpty(_clientId) ?
        Environment.GetEnvironmentVariable("SPOTIFY_CLIENT_ID") :
        _clientId;

      _secretId = string.IsNullOrEmpty(_secretId) ?
        Environment.GetEnvironmentVariable("SPOTIFY_SECRET_ID") :
        _secretId;

      Console.WriteLine("####### Spotify API Example #######");
      Console.WriteLine("This example uses AuthorizationCodeAuth.");
      Console.WriteLine(
        "Tip: If you want to supply your ClientID and SecretId beforehand, use env variables (SPOTIFY_CLIENT_ID and SPOTIFY_SECRET_ID)");

      var auth =
        new AuthorizationCodeAuth(_clientId, _secretId, "http://localhost:4002", "http://localhost:4002",
          Scope.PlaylistReadPrivate | Scope.PlaylistReadCollaborative);
      auth.AuthReceived += AuthOnAuthReceived;
      auth.Start();
      auth.OpenBrowser();

      Console.ReadLine();
      auth.Stop(0);

    }

    private static async void AuthOnAuthReceived(object sender, AuthorizationCode payload)
    {
      var auth = (AuthorizationCodeAuth) sender;
      auth.Stop();

      Token token = await auth.ExchangeCode(payload.Code);
      var api = new SpotifyWebAPI
      {
        AccessToken = token.AccessToken,
        TokenType = token.TokenType
      };
      await PrintUsefulData(api);
    }

    private static async Task PrintAllPlaylistTracks(SpotifyWebAPI api, Paging<SimplePlaylist> playlists)
    {
      if (playlists.Items == null) return;

      playlists.Items.ForEach(playlist => Console.WriteLine($"- {playlist.Name}"));
      if (playlists.HasNextPage())
        await PrintAllPlaylistTracks(api, await api.GetNextPageAsync(playlists));
    }

    private static async Task PrintUsefulData(SpotifyWebAPI api)
    {
      PrivateProfile profile = await api.GetPrivateProfileAsync();
      string name = string.IsNullOrEmpty(profile.DisplayName) ? profile.Id : profile.DisplayName;
      Console.WriteLine($"Hello there, {name}!");

      Console.WriteLine("Your playlists:");
      await PrintAllPlaylistTracks(api, api.GetUserPlaylists(profile.Id));
    }
  }
}