using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Mvc;

namespace GCalendar.SimpleLogin.Controllers
{
    public class AccountController : Controller
    {
        [HttpGet]
        public IActionResult Login()
        {
            return View();
        }

        public IActionResult AccessDenied()
        {
            return Content("Access Denied");
        }

        [HttpGet]
        public IActionResult ExternalLogin(string returnUrl = null)
        {
            var properties = new AuthenticationProperties
            {
                RedirectUri = returnUrl ?? "/Home/About"
            };

            return Challenge(properties);
        }



        public async Task<IActionResult> Logout()
        {
            await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);

            return RedirectToAction(nameof(HomeController.Index), "Home");
        }


        private IActionResult GoToReturnUrl(string returnUrl)
        {
            if (Url.IsLocalUrl(returnUrl))
            {
                return Redirect(returnUrl);
            }
            return RedirectToAction("Index", "Home");
        }
    }
}


            if (User.Identity.IsAuthenticated)
            {
                string accessToken = await HttpContext.GetTokenAsync("access_token");
                string idToken = await HttpContext.GetTokenAsync("id_token");

                // Now you can use them. For more info on when and how to use the
                // access_token and id_token, see https://auth0.com/docs/tokens
            }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddAuthentication(options =>
                {
                    options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                    options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                    options.DefaultChallengeScheme = GoogleDefaults.AuthenticationScheme;
                })
                .AddCookie()
                .AddGoogle(options =>
                {
                    options.ClientId = Configuration["Authentication:Google:ClientId"];
                    options.ClientSecret = Configuration["Authentication:Google:ClientSecret"];
                    options.Scope.Add("https://www.googleapis.com/auth/calendar");
                    options.SaveTokens = true;
                });

            services.AddMvc();
        }