using Bootstrap.Admin.Models;
using Bootstrap.DataAccess;
using Longbow;
using Longbow.Configuration;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;

namespace Bootstrap.Admin.Controllers
{
    /// <summary>
    /// Account controller.
    /// </summary>
    [AllowAnonymous]
    [AutoValidateAntiforgeryToken]
    public class AccountController : Controller
    {
        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        public ActionResult Login()
        {
            return User.Identity.IsAuthenticated ? (ActionResult)Redirect("~/Home/Index") : View("Login", new ModelBase());
        }

        /// <summary>
        /// Login the specified userName, password and remember.
        /// </summary>
        /// <returns>The login.</returns>
        /// <param name="userName">User name.</param>
        /// <param name="password">Password.</param>
        /// <param name="remember">Remember.</param>
        [HttpPost]
        public async Task<IActionResult> Login(string userName, string password, string remember)
        {
            if (UserHelper.Authenticate(userName, password))
            {
                var identity = new ClaimsIdentity(CookieAuthenticationDefaults.AuthenticationScheme);
                identity.AddClaim(new Claim(ClaimTypes.Name, userName));
                await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, new ClaimsPrincipal(identity), new AuthenticationProperties() { ExpiresUtc = DateTimeOffset.Now.AddDays(LgbConvert.ReadValue(ConfigurationManager.AppSettings["CookieExpiresDays"], 7)), IsPersistent = remember == "true" });
            }
            // redirect origin url
            var originUrl = Request.Query[CookieAuthenticationDefaults.ReturnUrlParameter].FirstOrDefault() ?? "~/Home/Index";
            return Redirect(originUrl);
        }

        /// <summary>
        /// Logout this instance.
        /// </summary>
        /// <returns>The logout.</returns>
        public async Task<IActionResult> Logout()
        {
            await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
            return Redirect("~" + CookieAuthenticationDefaults.LoginPath);
        }

        /// <summary>
        /// Accesses the denied.
        /// </summary>
        /// <returns>The denied.</returns>
        [ResponseCache(Duration = 600)]
        public ActionResult AccessDenied()
        {
            var returnUrl = Request.Query[CookieAuthenticationDefaults.ReturnUrlParameter].ToString();
            ViewBag.ReturnUrl = string.IsNullOrEmpty(returnUrl) ? Url.Content("~/Home/Index") : returnUrl;
            return View();
        }
    }
}