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.Collections.Generic;
using YouTube;

namespace FoxTube.Models
{
	public class User
	{
		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,brandingSettings");
			request.Mine = true;
			Channel = request.Execute().Items[0];
		}
	}
}