Added authorization mechanism

FoxTube.Core/Models/User.cs

@@ -1,24 +1,58 @@
 using Google.Apis.Auth.OAuth2;
+using Google.Apis.Oauth2.v2;
+using Google.Apis.Oauth2.v2.Data;
+using Google.Apis.Services;
+using Google.Apis.YouTube.v3;
 using Google.Apis.YouTube.v3.Data;
-using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using YouTube;
 
 namespace FoxTube.Core.Models
 {
     public class User
     {
-        public string Name { get; set; }
-        public string Email { get; set; }
-        internal string RefreshToken { get; set; }
-        public UserCredential Credential { get; set; }
-        public Channel Channel { get; set; }
+        public Userinfoplus UserInfo { get; }
+        public UserCredential Credential { get; }
+        public Channel Channel { get; private set; }
+        public List<Subscription> Subscriptions { get; } = new List<Subscription>();
+        public ExtendedYouTubeService Service { get; }
 
         public User(UserCredential credential)
         {
+            Credential = credential;
+            BaseClientService.Initializer initializer = new BaseClientService.Initializer
+            {
+                ApplicationName = "FoxTube",
+                HttpClientInitializer = Credential
+            };
 
+            Service = new ExtendedYouTubeService(initializer);
+
+            UserInfo = new Oauth2Service(initializer).Userinfo.Get().Execute();
+
+            // TODO: Retrieve history and WL
+
+            SubscriptionsResource.ListRequest subRequest = Service.Subscriptions.List("snippet");
+            subRequest.Mine = true;
+            subRequest.MaxResults = 50;
+            subRequest.Order = SubscriptionsResource.ListRequest.OrderEnum.Relevance;
+            SubscriptionListResponse subResponse;
+            string nextToken = null;
+            Subscriptions.Clear();
+
+            do
+            {
+                subRequest.PageToken = nextToken;
+                subResponse = subRequest.Execute();
+                foreach (Subscription s in subResponse.Items)
+                    Subscriptions.Add(s);
+                nextToken = subResponse.NextPageToken;
+
+            } while (!string.IsNullOrWhiteSpace(nextToken));
+
+            var request = Service.Channels.List("snippet,contentDetails");
+            request.Mine = true;
+            Channel = request.Execute().Items[0];
         }
     }
 }