using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using Kreta.BusinessLogic.Helpers;
using Kreta.BusinessLogic.Security;
using Kreta.Core.Elearning.Nexius;
using Kreta.Framework;
using Kreta.KretaServer.Caching;
using Kreta.Web.Areas.Adminisztracio.Models;
using Kreta.Web.Helpers;
using Kreta.Web.Security;
using Nexius.IdentityProvider.Model.External.V1;
using Nexius.IdentityProvider.Model.Lti;

namespace Kreta.Web.Areas.Adminisztracio.Controllers
{
    [MvcRoleClaimsAuthorize(true)]
    [MvcRolePackageDenyAuthorize(KretaClaimPackages.IsOnlyAlkalmozott.ClaimValue, KretaClaimPackages.IsDefaultAdminUser.ClaimValue)]
    [MvcRolePackageAuthorize(KretaClaimPackages.Adminisztrator.ClaimValue, KretaClaimPackages.Naplo.ClaimValue, KretaClaimPackages.Ellenorzo.ClaimValue)]
    public class ELearningController : Controller
    {
        readonly INexiusCourseService nexiusCourseService;

        public ELearningController(INexiusCourseService nexiusCourseService)
        {
            this.nexiusCourseService = nexiusCourseService;
        }

        public ActionResult Index()
        {
            var cache = SDAServer.Instance.CacheManager.AquireCache<ElearningCache>();
            var model = new List<NexiusListItemModel>();

            var isGondviselo = ClaimData.IsTanuloOrGondviselo && ClaimData.GondviseloId != null;
            var isTanulo = ClaimData.IsTanuloOrGondviselo && ClaimData.GondviseloId == null;
            var courseIdList = new ElearningElerhetosegHelper(ConnectionTypeExtensions.GetActiveSessionConnectionType()).GetElearningElerhetosegList(isGondviselo, isTanulo, (int)ClaimData.FelhasznaloSzerepkor, ClaimData.FelhasznaloSzerepCsomagok, ClaimData.GondviseloId);

            var courses = cache.GetCourses(courseIdList, nexiusCourseService);

            var courseResults = nexiusCourseService.GetUserCourseResults(GetFelhasznaloAzonosito());

            CourseResult courseResult;
            NexiusListItemModel listItem;
            foreach (var course in courses)
            {
                listItem = new NexiusListItemModel() { Course = course.Value };

                courseResult = courseResults.FirstOrDefault(x => x.Activities.CourseObjectId == course.Value.CourseObject.Id);
                if (courseResult != null)
                {
                    listItem.CourseResult = courseResult;
                }
                else
                {
                    listItem.CourseResult = new CourseResult();
                    listItem.CourseResult.Activities = new LtiCourseResultModel();
                    listItem.CourseResult.Activities.Progress = 0;
                    listItem.CourseResult.Activities.Measure = 0;
                    listItem.CourseResult.Activities.ResultEndTime = DateTime.MaxValue;
                    listItem.CourseResult.Activities.TotalTime = 0;
                }

                model.Add(listItem);
            }

            return View(model);
        }

        private string GetFelhasznaloAzonosito()
        {
            if (ClaimData.GondviseloId.HasValue)
            {
                return new TanuloHelper(ConnectionTypeExtensions.GetActiveSessionConnectionType()).GetGondviseloEgyediAzonosito(ClaimData.GondviseloId.Value);
            }
            else
            {
                return new FelhasznaloHelper(ConnectionTypeExtensions.GetActiveSessionConnectionType()).GetFelhasznaloEgyediAzonosito(ClaimData.FelhasznaloId);
            }
        }
    }
}