using System;
using System.Net;
using System.Net.Http;
using System.Runtime.Caching;
using System.Web.Http;
using Kreta.BusinessLogic.Helpers;
using Kreta.BusinessLogic.Security;
using Kreta.Core;
using Kreta.Core.KIR.Domain.Model;
using Kreta.Core.KIR.Factory.Interface;
using Kreta.Resources;
using Kreta.Web.Areas.KirImportExport.Models.KirImport;
using Kreta.Web.Security;

namespace Kreta.Web.Areas.KirImportExport.ApiControllers
{
    [ApiRoleClaimsAuthorize(true)]
    [ApiRolePackageAuthorize(KretaClaimPackages.Adminisztrator.ClaimValue)]
    public class KirAuthenticationApiController : ApiController
    {
        private const int KirLoginCacheExpirationInMinutes = 5;

        private IAuthenticationServiceFactory AuthenticationServiceFactory { get; }
        private string KirAuthHeaderModelCacheKey => $"{ClaimData.FelhasznaloNev}_{ClaimData.FelhasznaloId}_{ClaimData.IntezmenyAzonosito}_KirLogin";
        private string KirTokenCacheKey => $"{ClaimData.FelhasznaloNev}_{ClaimData.FelhasznaloId}_{ClaimData.IntezmenyAzonosito}_KirToken";

        public KirAuthenticationApiController(IAuthenticationServiceFactory authenticationServiceFactory)
        {
            AuthenticationServiceFactory = authenticationServiceFactory ?? throw new ArgumentNullException(nameof(authenticationServiceFactory));
        }

        [HttpPost]
        [ApiValidateAjaxAntiForgeryToken]
        public HttpResponseMessage Login(KirLoginModel kirLoginModel)
        {
            try
            {
                AuthHeaderModel authHeaderModel = new KirAuthenticationHelper(AuthenticationServiceFactory).Authenticate(kirLoginModel);

                if (!(Cache.Get(KirAuthHeaderModelCacheKey) is AuthHeaderModel))
                {
                    Cache.Add(KirAuthHeaderModelCacheKey, authHeaderModel, new CacheItemPolicy { SlidingExpiration = TimeSpan.FromMinutes(KirLoginCacheExpirationInMinutes) });
                }

                if (string.IsNullOrWhiteSpace(Cache.Get(KirTokenCacheKey) as string))
                {
                    Cache.Add(KirTokenCacheKey, authHeaderModel.KirToken, new CacheItemPolicy { AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddMinutes(KirLoginCacheExpirationInMinutes)) });
                }

                return new HttpResponseMessage(HttpStatusCode.OK);
            }
            catch (Exception)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ErrorResource.NemSikerultABejelentkezesHibasFelhasznalonevVagyJelszo);
            }
        }

        [HttpPost]
        [ApiValidateAjaxAntiForgeryToken]
        public HttpResponseMessage KirLoginCheck()
        {
            return Cache.Get(KirAuthHeaderModelCacheKey) is AuthHeaderModel ? new HttpResponseMessage(HttpStatusCode.OK) : new HttpResponseMessage(HttpStatusCode.BadRequest);
        }
    }
}