using SpotifyAPI.Web;

using SpotifyAPI.Web.Auth;

using SpotifyAPI.Web.Enums;

using SpotifyAPI.Web.Models;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Net;

using System.Windows.Forms;

using Image = System.Drawing.Image;

namespace SpotifyAPI.Example

{

public partial class WebControl : UserControl

{

private SpotifyWebAPI _spotify;

private ImplicitGrantAuth _auth;

private PrivateProfile _profile;

private List<FullTrack> _savedTracks;

private List<SimplePlaylist> _playlists;

public WebControl()

{

InitializeComponent();

_savedTracks = new List<FullTrack>();

_auth = new ImplicitGrantAuth

{

RedirectUri = "http://localhost:8000",

ClientId = "26d287105e31491889f3cd293d85bfea",

Scope = Scope.UserReadPrivate | Scope.UserReadEmail | Scope.PlaylistReadPrivate | Scope.UserLibrarayRead | Scope.UserReadPrivate | Scope.UserFollowRead | Scope.UserReadBirthdate,

State = "XSS"

};

_auth.OnResponseReceivedEvent += _auth_OnResponseReceivedEvent;

}

private void _auth_OnResponseReceivedEvent(Token token, string state)

{

_auth.StopHttpServer();

if (state != "XSS")

{

MessageBox.Show(@"Wrong state received.", @"SpotifyWeb API Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

return;

}

if (token.Error != null)

{

MessageBox.Show($"Error: {token.Error}", @"SpotifyWeb API Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

return;

}

_spotify = new SpotifyWebAPI

{

UseAuth = true,

AccessToken = token.AccessToken,

TokenType = token.TokenType

};

InitialSetup();

}

private async void InitialSetup()

{

if (InvokeRequired)

{

Invoke(new Action(InitialSetup));

return;

}

authButton.Enabled = false;

_profile = _spotify.GetPrivateProfile();

_savedTracks = GetSavedTracks();

savedTracksCountLabel.Text = _savedTracks.Count.ToString();

_savedTracks.ForEach(track => savedTracksListView.Items.Add(new ListViewItem()

{

Text = track.Name,

SubItems = { string.Join(",", track.Artists.Select(source => source.Name)), track.Album.Name }

}));

_playlists = GetPlaylists();

playlistsCountLabel.Text = _playlists.Count.ToString();

_playlists.ForEach(playlist => playlistsListBox.Items.Add(playlist.Name));

displayNameLabel.Text = _profile.DisplayName;

countryLabel.Text = _profile.Country;

emailLabel.Text = _profile.Email;

accountLabel.Text = _profile.Product;

if (_profile.Images != null && _profile.Images.Count > 0)

{

using (WebClient wc = new WebClient())

{

byte[] imageBytes = await wc.DownloadDataTaskAsync(new Uri(_profile.Images[0].Url));

using (MemoryStream stream = new MemoryStream(imageBytes))

avatarPictureBox.Image = Image.FromStream(stream);

}

}

}

private List<FullTrack> GetSavedTracks()

{

Paging<SavedTrack> savedTracks = _spotify.GetSavedTracks();

List<FullTrack> list = savedTracks.Items.Select(track => track.Track).ToList();

while (savedTracks.Next != null)

{

savedTracks = _spotify.GetSavedTracks(20, savedTracks.Offset + savedTracks.Limit);

list.AddRange(savedTracks.Items.Select(track => track.Track));

}

return list;

}

private List<SimplePlaylist> GetPlaylists()

{

Paging<SimplePlaylist> playlists = _spotify.GetUserPlaylists(_profile.Id);

List<SimplePlaylist> list = playlists.Items.ToList();

while (playlists.Next != null)

{

playlists = _spotify.GetUserPlaylists(_profile.Id, 20, playlists.Offset + playlists.Limit);

list.AddRange(playlists.Items);

}

return list;

}

private void authButton_Click(object sender, EventArgs e)

{

_auth.StartHttpServer(8000);

_auth.DoAuth();

}

}

}