using GreenTree.Nachtragsmanagement.Core;
using GreenTree.Nachtragsmanagement.Core.Authentication;
using GreenTree.Nachtragsmanagement.Services.User;
using GreenTree.Nachtragsmanagement.Web.Models.Login;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace GreenTree.Nachtragsmanagement.Web.Controllers
{
    public class LoginController : Controller
    {
        private readonly IUserService _userService;
        private readonly IUserHelper _userHelper;

        public LoginController(
            IUserService userService,
            IUserHelper userHelper)
        {
            _userService = userService;
            _userHelper = userHelper;
        }

        // GET: Login
        public ActionResult Index()
        {
            var user = _userHelper.FromCookies();

            if (user != null)
                return RedirectToAction("Index", "Home");

            return View("~/Views/Login/Index.cshtml");
        }

        [HttpPost]
        public ActionResult Index(LoginModel model)
        {
            var user = _userService.GetUserByCustomNumber(model.Username);

            if (user == null)
                return Index();

            var password = StaticHelper.GetMD5Hash(model.Password);

            if (!String.Equals(user.Password, password, StringComparison.InvariantCulture))
                return Index();

            user.CurrentRole = user.Roles.First(r1 => r1.Level == user.Roles.Max(r2 => r2.Level));

            if (model.IsPermanent.HasValue && model.IsPermanent.Value)
                _userHelper.ToCookies(user, DateTime.MaxValue);
            else
                _userHelper.ToCookies(user, DateTime.Now.AddHours(2));

            return RedirectToAction("Index", "Home");
        }

        public ActionResult Logout()
        {
            _userHelper.ClearCookie();

            return RedirectToAction("Index", "Login");
        }
    }
}