using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.Owin.Security;
using Sevomin.Models;
using Sevomin.Models.Helpers;
using System;
using System.Threading.Tasks;
using System.Web;
using System.Web.Mvc;
using Sevomin.Models.Repositories;

namespace Sevomin.WebFrontend.Controllers
{
    public class AccountController : BaseController
    {                
        public AccountController()
            : this(new SevominUserManager(new UserStore<User>(SevominDbContext.Current)))
        {
        }

        public AccountController(SevominUserManager userManager)
        {
            UserManager = userManager;
            UserManager.UserValidator = new Sevomin.Models.Helpers.SevominUserValidator();
        }

        public SevominUserManager UserManager { get; private set; }        

        private IAuthenticationManager AuthenticationManager
        {
            get
            {
                return HttpContext.GetOwinContext().Authentication;
            }
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Signup(SignupViewModel model)
        {
            User user;
            if (model.IsAvalin)
            {
                user = new Avalin(model.Email, model.DisplayName);
                user.SignUpDate = DateTime.UtcNow;
            }
            else
            {
                int spaceIndex = model.DisplayName.IndexOf(' ');
                user = new Dovomin(model.Email, model.DisplayName, string.Empty);
                user.SignUpDate = DateTime.UtcNow;
            }                
            var result = await UserManager.CreateAsync(user, model.Password);
            if (result.Succeeded)
            {
                await SignInAsync(user, isPersistent: false);
                return RedirectToAction("Index", "Home");
            }
            else
            {
                AddErrors(result);
            }

            return View("Intro", model);
        }
        
        public async Task<ActionResult> CheckUsername(string Email)
        {
            bool result = (await UserManager.FindByNameAsync(Email)) == null;
            if(result)
                return Json(true, JsonRequestBehavior.AllowGet);

            return Json("این ایمیل قبلا در سایت استفاده شده. کلمه عبور خود را فراموش کرده اید؟", JsonRequestBehavior.AllowGet);
        }
			

        public ActionResult Login(string returnUrl)
        {
            if(Request.IsAuthenticated)
                return RedirectToAction("Index", "Home");

            ViewBag.ReturnUrl = returnUrl;
            return View();
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
        {
            if (ModelState.IsValid)
            {
                var user = await UserManager.FindAsync(model.Username, model.Password);
                if (user != null)
                {
                    await SignInAsync(user, true);
                    return RedirectToLocal(returnUrl);
                }
                else
                {
                    ModelState.AddModelError("", "نام کاربری و یا کلمه عبور وارد شده صحیح نمی باشد.");
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }


        public ActionResult Logout()
        {
            AuthenticationManager.SignOut();
            return RedirectToAction("Index", "Home");
        }
			

        private async Task SignInAsync(User user, bool isPersistent)
        {
            AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
            var identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
            AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, identity);
        }

        private ActionResult RedirectToLocal(string returnUrl)
        {
            if (Url.IsLocalUrl(returnUrl))
            {
                return Redirect(returnUrl);
            }
            else
            {
                return RedirectToAction("Index", "Home");
            }
        }

        private void AddErrors(IdentityResult result)
        {
            foreach (var error in result.Errors)
            {
                ModelState.AddModelError("", error);
            }
        }

        [Authorize]
        public async Task<ActionResult> MyProfile()
        {
            User u = await UserManager.FindByNameAsync(User.Identity.Name);
            if (u is Avalin)
            {
                return View("ProfileAvalin", u as Avalin);
            }
            else
            {
                Dovomin dovomin = (Dovomin)u;
                DovominViewModel dvm = new DovominViewModel(dovomin);
                return View("ProfileDovomin", dvm);
            }
        }

        [Authorize]
        [HttpPost]
        public async Task<ActionResult> ProfileDovomin(string JalaliBirthDate, string FirstName,
            string LastName, string ContactPersonEMail, bool IsFullTime,
            bool IsPartTime, string Description, HttpPostedFileBase EnglishResume, HttpPostedFileBase PersianResume, FormCollection form)
        {
            User u = await UserManager.FindByNameAsync(User.Identity.Name);
            if (u == null || !(u is Dovomin))
                throw new InvalidOperationException("نوع کاربر صحیح نیست");

            try
            {
                Dovomin dovomin = (Dovomin)u;
                dovomin.BirthDate = DateAssist.ToMiladi(JalaliBirthDate);
                dovomin.Description = Description;
                dovomin.FirstName = FirstName;
                dovomin.LastName = LastName;
                dovomin.IsFulltime = IsFullTime;
                dovomin.IsPartTime = IsPartTime;

                ParameterRepository.Current.AddParametersToDovomin(dovomin);
                foreach (var jp in dovomin.DovominParameters)
                {
                    string value = form[string.Format("value-{0}", jp.Parameter.Id)];
                    jp.SetValue(value);
                }
                
                if (EnglishResume != null)
                {
                    dovomin.EnglishResume = string.Format("{0}-resume-en{2}", User.Identity.Name, "", System.IO.Path.GetExtension(EnglishResume.FileName));
                    EnglishResume.SaveAs(System.IO.Path.Combine(Server.MapPath("~/App_Data/resumes"), dovomin.EnglishResume));
                }
                if (PersianResume != null)
                {
                    dovomin.PersianResume = string.Format("{0}-resume-fa{2}", User.Identity.Name, "", System.IO.Path.GetExtension(PersianResume.FileName));
                    PersianResume.SaveAs(System.IO.Path.Combine(Server.MapPath("~/App_Data/resumes"), dovomin.PersianResume));
                }                

                SevominDbContext.Current.SaveChanges();
            }
            catch (Exception)
            {
                throw;
            }
            
            return RedirectToAction("MyProfile");
        }

        [Authorize]
        [HttpPost]
        public async Task<ActionResult> ProfileAvalin(string CompanyName, string NationalId, string RegisterId,
            string Address, string CompanyPhoneNumber, string EMail)
        {
            User u = await UserManager.FindByNameAsync(User.Identity.Name);
            try
            {
                if (u == null || !(u is Avalin))
                    throw new InvalidOperationException("نوع کاربر صحیح نیست");
                Avalin avalin = (Avalin)u;
                avalin.CompanyName = CompanyName;
                avalin.NationalId = NationalId;
                avalin.RegisterId = RegisterId;
                avalin.Address = Address;
                avalin.CompanyPhoneNumber = CompanyPhoneNumber;
                avalin.Email = EMail;

                SevominDbContext.Current.SaveChanges();

            }
            catch (Exception)
            {
                
                throw;
            }
            return View("ProfileAvalin", u as Avalin);
        }
    }
}