using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Mail;
using System.Text;
using Kreta.Core;
using Kreta.Core.Configuratiaton;
using Kreta.DataAccessManual;
using Kreta.EESZTInterface;
using Kreta.EESZTInterface.Processors;
using Kreta.Job.Tasks.Core;
using Kreta.Resources;

namespace Kreta.Job.Tasks
{
    public class EESZTInterfaceJob : IEESZTInterfaceJob
    {
        public EESZTConfiguration EESZTConfiguration { get; }
        public KretaJobConfig KretaJobConfig { get; set; }

        public EESZTInterfaceJob(EESZTConfiguration eESZTConfiguration, KretaJobConfig kretaJobConfig)
        {
            EESZTConfiguration = eESZTConfiguration;
            KretaJobConfig = kretaJobConfig;
        }

        public void GetEESZTAllomany()
        {
            var adat = new List<byte>();
            string allomanyNev = "";
            try
            {
                var tajProcessor = new TAJProcessor();

                var stsHelper = new STSHelper();
                var samlAssertion = stsHelper.GetSamlAssertion(EESZTConfiguration.InterfaceUrl);
                var eFtHelper = new EFTHelper(EESZTConfiguration.InterfaceUrl);
                var clientUserId = EESZTConfiguration.ClientUserId;
                var organizationId = EESZTConfiguration.OrganizationId;
                var getIntezmenyiAllomanyListaResponse = eFtHelper.CallIntezmenyAllomanyLista(samlAssertion, clientUserId, organizationId);
                var allomany = getIntezmenyiAllomanyListaResponse.IntezmenyiAllomanyListaResponse.IntezmenyiAllomanyListaResponseBusinessContent.Allomanyok.OrderByDescending(x => x.Datum).FirstOrDefault();
                if (allomany == default)
                {
                    throw new ApplicationException(EESZTInterfaceResource.NemVoltLetolthetoAllomany);
                }
                allomanyNev = $"{allomany.Nev}{allomany.Kiterjesztes}";
                var publikusId = allomany.PublikusId;
                var sorszam = allomany.Darabszam;
                for (int j = 0; j < sorszam; j++)
                {
                    var (getAllomanyReszResponse, attachment) = eFtHelper.CallAllomanyResz(samlAssertion, clientUserId, organizationId, publikusId, j + 1);

                    var computedHashArray = EFTHelper.ComputeSha256Hash(attachment);
                    var computedHash = Convert.ToBase64String(computedHashArray);
                    if (computedHash != getAllomanyReszResponse.AllomanyReszResponse.AllomanyReszResponseBusinessContent.AllomanyResz.Hash)
                    {
                        throw new ApplicationException(string.Format(EESZTInterfaceResource.AllomanyReszHashKulonbozoseg, publikusId, j));
                    }
                    adat.AddRange(attachment);
                }
                var hashArray = EFTHelper.ComputeSha256Hash(adat.ToArray());
                var hash = Convert.ToBase64String(hashArray);
                if (hash != allomany.Hash)
                {
                    throw new ApplicationException(string.Format(EESZTInterfaceResource.AllomanyHashKulonbozoseg, publikusId));
                }
                //File.WriteAllBytes($@"c:\temp\eFT\{allomany.Nev}_{allomany.Datum:yyMMdd_hhmmss}_{DateTime.Now:yyMMdd_hhmmss}{allomany.Kiterjesztes}", adat.ToArray());// EFTHelper.Decompress(adat.ToArray()));
                var sikeresAllomanyLetoltesResponse = eFtHelper.CallSikeresAllomanyLetoltes(samlAssertion, clientUserId, organizationId, publikusId);
                if (sikeresAllomanyLetoltesResponse.SikeresAllomanyLetoltesResponse.SikeresAllomanyLetoltesResponseBusinessContent != "")
                {
                    throw new ApplicationException(string.Format(EESZTInterfaceResource.SikeresLetoltesVisszejelzesHiba, publikusId));
                }
                tajProcessor.AddFileContent(adat.ToArray());
                var fertozottOssz = 0;
                var marNemFertozottOssz = 0;
                foreach (var azonosito in KretaServer.KretaServer.Instance.GetOsszesIntezmeny())
                {
                    var connectionString = KretaServer.KretaServer.Instance.GetIntezmenyConnectionString(azonosito);
                    Dal.ServiceSystemConnection.Run(connectionString, h =>
                    {
                        var intezmenyId = h.IntezmenyDal().GetIntezmenyIdByAzonosito(azonosito);
                        if (intezmenyId.HasValue)
                        {
                            var intezmeny = h.IntezmenyDal().Get(intezmenyId.Value);
                            var tanev = intezmeny.Tanev.SingleOrDefault(x => x.Aktiv.HasValue && x.Aktiv.Value && !x.Torolt);
                            if (tanev != default)
                            {
                                var (fertozott, marNemFertozott) = tajProcessor.UpdateDB(h, tanev.ID);
                                fertozottOssz += fertozott;
                                marNemFertozottOssz += marNemFertozott;
                            }
                        }
                    });
                }
                if (!string.IsNullOrWhiteSpace(EESZTConfiguration.MailToAddresses))
                {
                    SendEESZTInterfaceEmail(true, new MemoryStream(adat.ToArray()), allomanyNev, string.Format(EESZTInterfaceResource.FertozottMarNemFertozottText, fertozottOssz, marNemFertozottOssz));
                }
            }
            catch (Exception ex)
            {
                if (!string.IsNullOrWhiteSpace(EESZTConfiguration.MailToAddresses))
                {
                    SendEESZTInterfaceEmail(false, new MemoryStream(adat.ToArray()), allomanyNev, ex.Message);
                }
                throw;
            }
        }

        private void SendEESZTInterfaceEmail(bool sikeres, MemoryStream ms, string allomanynev, string bodyExtension = null)
        {
            var mail = new MailMessage(KretaJobConfig.DefaultEmail, KretaJobConfig.DefaultEmail)
            {
                Subject = sikeres ? EESZTInterfaceResource.EmailSubjectSikeres : EESZTInterfaceResource.EmailSubjectSikertelen,
                SubjectEncoding = Encoding.UTF8,
                Body = string.Format((sikeres ? EESZTInterfaceResource.EmailTorzsSikeres : EESZTInterfaceResource.EmailTorzsSikertelen), KretaServer.KretaServer.Instance.Configuration.SystemType),
                IsBodyHtml = false,
                BodyEncoding = Encoding.UTF8,
                DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure
            };

            if (!string.IsNullOrWhiteSpace(bodyExtension))
            {
                mail.Body += (Environment.NewLine + bodyExtension);
            }

            Attachment attachment = null;
            if (ms.Length > 0)
            {
                attachment = new Attachment(ms, allomanynev);
                mail.Attachments.Add(attachment);
            }

            foreach (var address in EESZTConfiguration.MailToAddresses.Split(";".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
            {
                mail.To.Add(address);
            }
            mail.To.RemoveAt(0);

            using (var client = new SmtpClient())
            {
                client.Send(mail);
            }
            if (attachment != null)
            {
                attachment.Dispose();
            }
            ms.Close();
        }
    }
}