constructdemo/ConstructorAppUI/Controllers/LoginController.cs

using ConstructorApp.EntityLayer.Entities;
using ConstructorAppUI.ViewModels;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;

namespace ConstructorAppUI.Controllers
{
    [AllowAnonymous]
    public class LoginController : Controller
    {
        private readonly SignInManager<AppUser> _signInManager;
        private readonly UserManager<AppUser> _userManager;

        public LoginController(SignInManager<AppUser> signInManager, UserManager<AppUser> userManager)
        {
            _signInManager = signInManager;
            _userManager = userManager;
        }

        public IActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public async Task<IActionResult> Index(LoginViewModel loginViewModel)
        {
            if (!ModelState.IsValid)
            {
                return View(loginViewModel);
            }

            var result = await _signInManager.PasswordSignInAsync(
                loginViewModel.UserName,
                loginViewModel.Password,
                false,
                true);

            if (result.Succeeded)
            {
                var user = await _userManager.FindByNameAsync(loginViewModel.UserName);
                if (user.EmailConfirmed)
                {
                    var roles = await _userManager.GetRolesAsync(user);
                    if (roles.Contains("Admin"))
                    {
                        return RedirectToAction("Index", "Dashboard");
                    }
                }
                else
                {
                    ModelState.AddModelError(string.Empty, "E-posta adresiniz henüz onaylanmamış.");
                }
            }
            else if (result.IsLockedOut)
            {
                ModelState.AddModelError(string.Empty, "Çok sayıda hatalı giriş yaptınız. Lütfen daha sonra tekrar deneyin.");
            }
            else
            {
                ModelState.AddModelError(string.Empty, "Kullanıcı adı veya şifre hatalı.");
            }

            return View(loginViewModel);
        }

        public async Task<IActionResult> Logout()
        {
            await _signInManager.SignOutAsync();
            return RedirectToAction("Index", "Login");
        }
    }
}