using System;
using System.Collections.Generic;
using System.Linq;
using Hangfire.Server;
using Kreta.BusinessLogic.Helpers.Models;
using Kreta.Core.MessageBroker.Contract.MobileNotification;
using Kreta.Core.MessageBroker.Contract.MobileNotification.Enum;
using Kreta.Job.Tasks.Cache;
using Kreta.Job.Tasks.Helpers.Utility;
using Kreta.MessageBroker.Client.MobileNotification;
using Kreta.Resources;
using Serilog;
using Serilog.Core.Enrichers;

namespace Kreta.Job.Tasks.Helpers.Notification
{
    internal static class OrarendValtozasNotificationHelper
    {
        internal static void SendOrarendValtozasNotification(PerformContext context)
        {
            var logger = Log.ForContext(new PropertyEnricher[] { new PropertyEnricher("LoggerId", Guid.NewGuid()) });
            try
            {
                var userIds = new List<int>();
                foreach (var intezmenyAzonosito in KretaServer.KretaServer.Instance.GetOsszesIntezmeny())
                {
                    OrarendValtozasCache orarendValtozasCache = KretaServer.KretaServer.Instance.CacheManager.AquireCacheMobile<OrarendValtozasCache>();
                    if (orarendValtozasCache != null)
                    {
                        var orarendValtozasok = orarendValtozasCache.GetOrarendValtozasok(intezmenyAzonosito);
                        var kikuldendoOrarendValtozasok = GetKikuldendoOrarendValtozasok(orarendValtozasok);
                        var mobileNotificationMessages = new List<MobileNotificationMessage>();
                        foreach (var orarendValtozas in kikuldendoOrarendValtozasok)
                        {
                            mobileNotificationMessages.Add(MobileNotificationMessageHelper.CreateMessage(
                                orarendValtozas.IntezmenyAzonosito,
                                orarendValtozas.UserId,
                                MobileNotificationMessageType.OrarendValtozas,
                                orarendValtozas.OrarendiOraId,
                                orarendValtozas.Uzenet,
                                NotificationResource.OrarendValtozasTitle,
                                orarendValtozas.Datum.ToIso8601UtcString()));
                            userIds.Add(orarendValtozas.UserId);
                        }
                        if (mobileNotificationMessages.Any())
                        {
                            orarendValtozasCache.RemoveOrarendValtozasok(intezmenyAzonosito);
                            MobileNotificationMessageHelper.PostStudentNotification(mobileNotificationMessages.ToArray());
                        }
                    }
                }
                context.SetJobParameter("UserIds", userIds);
            }
            catch (Exception ex)
            {
                logger.Fatal(ex, ex.GetType().FullName);
            }
        }

        private static List<OrarendValtozasModel> GetKikuldendoOrarendValtozasok(List<OrarendValtozasModel> orarendValtozasok)
        {
            var kikuldendoOrarendValtozasok = new List<OrarendValtozasModel>();
            var userIdGroupedOrarendValtozasok = orarendValtozasok.GroupBy(x => x.UserId).Select(x => new
            {
                Key = x.Key,
                OrarendValtozasok = x.OrderBy(c => c.Datum)
            });

            foreach (var orarendValtozas in userIdGroupedOrarendValtozasok)
            {
                var legkorabbi = orarendValtozas.OrarendValtozasok.First();
                var napok = string.Concat(string.Join("i, ", orarendValtozas.OrarendValtozasok.Select(n => n.Nap).Distinct()), "i ");

                kikuldendoOrarendValtozasok.Add(new OrarendValtozasModel
                {
                    IntezmenyAzonosito = legkorabbi.IntezmenyAzonosito,
                    UserId = legkorabbi.UserId,
                    IdpUniqueId = legkorabbi.IdpUniqueId,
                    UserNev = legkorabbi.UserNev,
                    OrarendiOraId = legkorabbi.OrarendiOraId,
                    Uzenet = string.Format(NotificationResource.OrarendValtozasNotificationMessage, legkorabbi.UserNev, napok),
                    Datum = legkorabbi.Datum
                });
            }

            return kikuldendoOrarendValtozasok;
        }
    }
}