/******************************************************************************
// Canary Islands Computer Museum Website
// ----------------------------------------------------------------------------
//
// Filename       : SetPassword.cshtml.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// --[ Description ] ----------------------------------------------------------
//
//     ASP.NET Identify management
//
// --[ License ] --------------------------------------------------------------
//
//     This program is free software: you can redistribute it and/or modify
//     it under the terms of the GNU General Public License as
//     published by the Free Software Foundation, either version 3 of the
//     License, or (at your option) any later version.
//
//     This program is distributed in the hope that it will be useful,
//     but WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//     GNU General Public License for more details.
//
//     You should have received a copy of the GNU General Public License
//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2003-2018 Natalia Portillo
*******************************************************************************/

using System.ComponentModel.DataAnnotations;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace cicm_web.Areas.Identity.Pages.Account.Manage
{
    public class SetPasswordModel : PageModel
    {
        readonly SignInManager<IdentityUser> _signInManager;
        readonly UserManager<IdentityUser>   _userManager;

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

        [BindProperty]
        public InputModel Input { get; set; }

        [TempData]
        public string StatusMessage { get; set; }

        public async Task<IActionResult> OnGetAsync()
        {
            IdentityUser user = await _userManager.GetUserAsync(User);
            if(user == null) return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");

            bool hasPassword = await _userManager.HasPasswordAsync(user);

            if(hasPassword) return RedirectToPage("./ChangePassword");

            return Page();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            if(!ModelState.IsValid) return Page();

            IdentityUser user = await _userManager.GetUserAsync(User);
            if(user == null) return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");

            IdentityResult addPasswordResult = await _userManager.AddPasswordAsync(user, Input.NewPassword);
            if(!addPasswordResult.Succeeded)
            {
                foreach(IdentityError error in addPasswordResult.Errors)
                    ModelState.AddModelError(string.Empty, error.Description);
                return Page();
            }

            await _signInManager.RefreshSignInAsync(user);
            StatusMessage = "Your password has been set.";

            return RedirectToPage();
        }

        public class InputModel
        {
            [Required]
            [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.",
                MinimumLength               = 6)]
            [DataType(DataType.Password)]
            [Display(Name = "New password")]
            public string NewPassword { get; set; }

            [DataType(DataType.Password)]
            [Display(Name                        = "Confirm new password")]
            [Compare("NewPassword", ErrorMessage = "The new password and confirmation password do not match.")]
            public string ConfirmPassword { get; set; }
        }
    }
}