Writed test for DASH manifests generation,

Added Watch later retrieval module

YouTubeScraper/YouTube.API.Test/DashManifestTest.cs

@@ -17,7 +17,7 @@ namespace YouTube.API.Test
         public void ValidManifestTest()
         {
             YouTubeService service = new YouTubeService();
-            IReadOnlyList<DashManifest> manifests = service.DashManifests.List("VC5-YkjMHuw").Execute();
+            IReadOnlyList<DashManifest> manifests = service.DashManifests.List("NkGbcQwWxqk").Execute();
             foreach (var i in manifests)
                 Console.WriteLine(i.Label);
             Assert.IsNotNull(manifests);

YouTubeScraper/YouTube.API.Test/WatchLaterTest.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Google.Apis.Auth.OAuth2;
+using Google.Apis.Services;
+using Google.Apis.YouTube.v3.Data;
+using Newtonsoft.Json;
+using NUnit.Framework;
+using YouTube.Authorization;
+using YouTube.Resources;
+
+namespace YouTube.API.Test
+{
+    public class WatchLaterTest
+    {
+        const string testVideoId = "NkGbcQwWxqk";
+        YouTubeService service;
+
+        [SetUp]
+        public void Setup()
+        {
+            var task = AuthorizationHelpers.ExchangeToken(new ClientSecrets
+            {
+                ClientId = "1096685398208-u95rcpkqb4e1ijfmb8jdq3jsg37l8igv.apps.googleusercontent.com",
+                ClientSecret = "IU5bbdjwvmx8ttJoXQ7e6JWd"
+            }, "4/twFMhT4xSaAxls-rEayp8MxFI2Oy0knUdDbAXKnfyMkbDHaNyqhV6uM");
+            task.Wait();
+
+            UserCredential credential = task.Result;
+            service = new YouTubeService(new BaseClientService.Initializer
+            {
+                HttpClientInitializer = credential,
+                ApplicationName = "FoxTube"
+            });
+        }
+
+        [Test]
+        public void AddVideoTest()
+        {
+            WatchLaterResource.InsertRequest request = service.WatchLater.Insert(testVideoId, "snippet");
+            PlaylistItem item = request.Execute();
+            Console.WriteLine(JsonConvert.SerializeObject(item));
+            Assert.IsNotNull(item);
+        }
+
+        [Test]
+        public void DeleteVideoTest()
+        {
+            WatchLaterResource.DeleteRequest request = service.WatchLater.Delete(testVideoId);
+            request.Execute();
+            Assert.Pass();
+        }
+    }
+}

YouTubeScraper/YouTubeScraper/Authorization/AuthorizationHelpers.cs

@@ -62,7 +62,7 @@ namespace YouTube.Authorization
             AuthorizationCodeFlow authorizationCodeFlow = new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer()
             {
                 ClientSecrets = clientSecrets,
-                Scopes = responseData.scope.Split(' ')
+                Scopes = responseData.scope.ToString().Split(' ')
             });
 
             return new UserCredential(authorizationCodeFlow, "user", tokenResponse);

YouTubeScraper/YouTubeScraper/Resources/WatchLaterResource.cs

@@ -1,28 +1,109 @@
-using System;
+using AngleSharp.Html.Dom;
+using AngleSharp.Html.Parser;
+using Google.Apis.Http;
+using Google.Apis.Services;
+using Google.Apis.YouTube.v3;
+using Google.Apis.YouTube.v3.Data;
+using System;
 using System.Collections.Generic;
-using System.Text;
+using System.Linq;
+using System.Net.Http;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
 
 namespace YouTube.Resources
 {
     public class WatchLaterResource
     {
-        public class ListRequest { }
-        public class InsertRequest { }
-        public class DeleteRequest { }
+        IClientService Service { get; }
+
+        public WatchLaterResource(IClientService service) =>
+            Service = service;
 
         public ListRequest List()
         {
             return new ListRequest();
         }
 
-        public InsertRequest Insert(string videoId)
+        public InsertRequest Insert(string videoId, string part) =>
+            new InsertRequest(Service, videoId, part);
+
+        public DeleteRequest Delete(string videoId) =>
+            new DeleteRequest(Service, videoId);
+
+        public class ListRequest { }
+        public class InsertRequest
         {
-            return new InsertRequest();
+            IClientService Service { get; set; }
+            public string Id { get; set; }
+            public string Part { get; set; }
+
+            public InsertRequest(IClientService service, string videoId, string part)
+            {
+                Service = service;
+                Id = videoId;
+                Part = part;
             }
 
-        public DeleteRequest Delete(string videoId)
+            public async Task<PlaylistItem> ExecuteAsync()
             {
-            return new DeleteRequest();
+                PlaylistItem playlist = new PlaylistItem
+                {
+                    Snippet = new PlaylistItemSnippet
+                    {
+                        PlaylistId = "WL",
+                        ResourceId = new ResourceId
+                        {
+                            VideoId = Id,
+                            Kind = "youtube#video"
+                        }
+                    }
+                };
+                PlaylistItemsResource.InsertRequest request = (Service as YouTubeService).PlaylistItems.Insert(playlist, Part);
+
+                return await request.ExecuteAsync();
+            }
+
+            public PlaylistItem Execute()
+            {
+                Task<PlaylistItem> task = ExecuteAsync();
+                task.Wait();
+                return task.Result;
+            }
+        }
+        public class DeleteRequest
+        {
+            IClientService Service { get; set; }
+            public string Id { get; set; }
+
+            public DeleteRequest(IClientService service, string videoId)
+            {
+                Service = service;
+                Id = videoId;
+            }
+
+            public async Task ExecuteAsync()
+            {
+                ConfigurableHttpClient client = Service.HttpClient;
+                string data = await client.GetStringAsync($"https://youtube.com/watch?v={Id}&disable_polymer=true&bpctr=9999999999&hl=en");
+                string plid = Regex.Match(data, @"(?<=plid=).?\w+").Value;
+                IHtmlDocument html = await new HtmlParser().ParseDocumentAsync(data);
+                string sessionToken = html.GetElementsByTagName("input").FirstOrDefault(i => i.GetAttribute("name") == "session_token")?.GetAttribute("value");
+                Dictionary<string, string> body = new Dictionary<string, string>
+                {
+                    { "video_ids", Id },
+                    { "full_list_id", "WL" },
+                    { "plid", plid },
+                    { "session_token", sessionToken }
+                };
+                HttpResponseMessage response = await client.PostAsync("https://www.youtube.com/playlist_video_ajax?action_delete_from_playlist=1", new FormUrlEncodedContent(body));
+                string responseStr = await response.Content.ReadAsStringAsync();
+                if (!responseStr.Contains("SUCCESS"))
+                    throw new Exception(responseStr);
+            }
+
+            public void Execute() =>
+                ExecuteAsync().Wait();
         }
     }
 }

YouTubeScraper/YouTubeScraper/YouTubeService.cs

@@ -8,13 +8,10 @@ namespace YouTube
         public VideoPlaybackResource VideoPlayback => new VideoPlaybackResource(this);
         public new CaptionsResource Captions => new CaptionsResource(this);
         public HistoryResource History { get; }
-        public WatchLaterResource WatchLater { get; }
-        // TODO: Add Activities override for recomendations and subscriptions and implementation of cc retrieval
+        public WatchLaterResource WatchLater => new WatchLaterResource(this);
+        // TODO: Add Activities override for recomendations and subscriptions
         
-        public YouTubeService() : base()
-        {
-            
-        }
+        public YouTubeService() : base() { }
 
         public YouTubeService(Initializer initializer) : base(initializer) { }
     }