using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Security.Principal;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web.Security;
using DimecastsNet.OOB.Web.Models;

namespace DimecastsNet.OOB.Web.Controllers
{

    [HandleError]
    public class AccountController : Controller
    {

        public IFormsAuthenticationService FormsService { get; set; }
        public IMembershipService MembershipService { get; set; }

        protected override void Initialize( RequestContext requestContext )
        {
            if ( FormsService == null ) { FormsService = new FormsAuthenticationService(); }
            if ( MembershipService == null ) { MembershipService = new AccountMembershipService(); }

            base.Initialize( requestContext );
        }

        // **************************************
        // URL: /Account/LogOn
        // **************************************

        public ActionResult LogOn()
        {
            return View();
        }

        [HttpPost]
        public ActionResult LogOn( LogOnModel model, string returnUrl )
        {
            if ( ModelState.IsValid )
            {
                if ( MembershipService.ValidateUser( model.UserName, model.Password ) )
                {
                    FormsService.SignIn( model.UserName, model.RememberMe );
                    if ( !String.IsNullOrEmpty( returnUrl ) )
                    {
                        return Redirect( returnUrl );
                    }
                    else
                    {
                        return RedirectToAction( "Index", "Home" );
                    }
                }
                else
                {
                    ModelState.AddModelError( "", "The user name or password provided is incorrect." );
                }
            }

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

        // **************************************
        // URL: /Account/LogOff
        // **************************************

        public ActionResult LogOff()
        {
            FormsService.SignOut();

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

        // **************************************
        // URL: /Account/Register
        // **************************************

        public ActionResult Register()
        {
            ViewData["PasswordLength"] = MembershipService.MinPasswordLength;
            return View();
        }

        [HttpPost]
        public ActionResult Register( RegisterModel model )
        {
            if ( ModelState.IsValid )
            {
                // Attempt to register the user
                MembershipCreateStatus createStatus = MembershipService.CreateUser( model.UserName, model.Password, model.Email );

                if ( createStatus == MembershipCreateStatus.Success )
                {
                    FormsService.SignIn( model.UserName, false /* createPersistentCookie */);
                    return RedirectToAction( "Index", "Home" );
                }
                else
                {
                    ModelState.AddModelError( "", AccountValidation.ErrorCodeToString( createStatus ) );
                }
            }

            // If we got this far, something failed, redisplay form
            ViewData["PasswordLength"] = MembershipService.MinPasswordLength;
            return View( model );
        }

        // **************************************
        // URL: /Account/ChangePassword
        // **************************************

        [Authorize]
        public ActionResult ChangePassword()
        {
            ViewData["PasswordLength"] = MembershipService.MinPasswordLength;
            return View();
        }

        [Authorize]
        [HttpPost]
        public ActionResult ChangePassword( ChangePasswordModel model )
        {
            if ( ModelState.IsValid )
            {
                if ( MembershipService.ChangePassword( User.Identity.Name, model.OldPassword, model.NewPassword ) )
                {
                    return RedirectToAction( "ChangePasswordSuccess" );
                }
                else
                {
                    ModelState.AddModelError( "", "The current password is incorrect or the new password is invalid." );
                }
            }

            // If we got this far, something failed, redisplay form
            ViewData["PasswordLength"] = MembershipService.MinPasswordLength;
            return View( model );
        }

        // **************************************
        // URL: /Account/ChangePasswordSuccess
        // **************************************

        public ActionResult ChangePasswordSuccess()
        {
            return View();
        }

    }
}
