using rgbc_sds.services.Models;
using rgbc_sds.services.Services;
using rgbc_sds.services.Enums;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Identity;
using System.DirectoryServices;
using System.Security.Principal;

namespace rgbc_sds.website.Controllers
{
    public class AccountController : Controller
    {
        private readonly UserService _userService;
        private readonly ILogger<AccountController> _logger;


        public AccountController(UserService userService, ILogger<AccountController> logger)
        {
            _userService = userService;
            _logger = logger;
        }

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

        [Route("/")]
        [Route("account")]
        [Route("account/login")]
        public ActionResult Login()
        {
            return View();
        }

        [HttpPost]
        [Route("account/login")]
        public IActionResult Login(LoginViewModel model)
        {
            var controller = "Shipment";
            var action = "ShipmentList";

            try
            {
                // PRODUCTION
                model.Username = User.Identity.Name;

                // LOCAL
                // model.Username = "rgbc\\maanie";

                // validate that user exists in database
                var user = _userService.ValidateUser(model.Username);

                if (user != null)
                {
                    //if both conditions are met, check user role
                    switch (user.refUserGroupSDSID)
                    {
                        case (int)RoleEnum.Admin:
                            HttpContext.Session.SetString("LoggedInUsername", user.strUserName);
                            HttpContext.Session.SetString("LoggedInUserRole", "ADMIN");
                            HttpContext.Session.SetInt32("LoggedInUserId", user.Id);
                            break;
                        case (int)RoleEnum.Viewer:
                            HttpContext.Session.SetString("LoggedInUsername", user.strUserName);
                            HttpContext.Session.SetString("LoggedInUserRole", "VIEWER");
                            HttpContext.Session.SetInt32("LoggedInUserId", user.Id);
                            break;
                        case (int)RoleEnum.Logistics:
                            HttpContext.Session.SetString("LoggedInUsername", user.strUserName);
                            HttpContext.Session.SetString("LoggedInUserRole", "LOGISTICS");
                            HttpContext.Session.SetInt32("LoggedInUserId", user.Id);
                            break;
                        default:
                            break;
                    }

                    _logger.LogInformation("User logged in successfully.");
                    return RedirectToAction(action, controller);
                }
                else
                {
                    TempData["LoginMessage"] = "User could not be Authenticated. Please contact your System Administrator.";
                    return View();
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error occurred during login.");
                Console.WriteLine(ex.Message.ToString());

                ModelState.AddModelError(string.Empty, "An error occurred. Please try again.");
            }

            return View(model);
        }

        [Route("account/logout")]
        public ActionResult Logout()
        {
            var model = new LoginViewModel();

            return View("~/Views/Account/Login.cshtml", model);
        }
    }
}