using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using Kreta.BusinessLogic.Helpers;
using Kreta.BusinessLogic.Interfaces;
using Kreta.Core.ConnectionType;
using Kreta.Core.Enum;
using Kreta.Core.Exceptions;
using Kreta.Core.Logic;
using Kreta.DataAccessManual.Util;
using Kreta.Ellenorzo.Dao.VN.OraFile;
using Kreta.Ellenorzo.Domain.VN.Common;
using Kreta.Ellenorzo.Domain.VN.Csatolmany;
using Kreta.Ellenorzo.Domain.VN.UniqueIdentifier;
using Kreta.Enums;
using Kreta.Enums.ManualEnums;

namespace Kreta.Ellenorzo.BL.VN.Ora
{
    internal static class CsatolmanySubqueries
    {
        internal static HttpResponseMessage GetCsatolmany(DefaultConnectionParameters dcp, IFileServiceHelper fileServiceHelper, CsatolmanyUid uid)
        {
            var response = new HttpResponseMessage(HttpStatusCode.OK);

            var fileHelper = new DktFileHelper(new MobileConnectionType(dcp.FelhasznaloId, dcp.IntezmenyId, dcp.IntezmenyAzonosito, dcp.TanevId), fileServiceHelper);
            var (jogosult, feltoltottFajl) = fileHelper.GetFile(dcp.DalHandler, dcp.TanuloId, uid.Id);

            if (!jogosult)
            {
                throw new BlException(BlExceptionType.NincsJogosultsag);
            }

            var memoryStream = new MemoryStream(fileHelper.GetCsatolmanyData(feltoltottFajl).Data)
            {
                Position = 0
            };

            response.Content = new StreamContent(memoryStream);
            response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment") { FileName = feltoltottFajl.FileNev + "." + feltoltottFajl.Extension };
            response.Content.Headers.Add("Content-Type", "application/octet-stream");

            return response;
        }

        internal static Dictionary<OrarendElemUid, List<CsatolmanySimplifiedResponse>> ListCsatolmanyok(DefaultConnectionParameters dcp, CsatolmanyListRequest request)
        {
            var result = new Dictionary<OrarendElemUid, List<CsatolmanySimplifiedResponse>>(new OrarendElemUid());
            if (!request.OrarendElemUids.Any())
            {
                return result;
            }
            var oraFiles = new OraFileHelper(new DalHandlerConnectionType(new MobileConnectionType(dcp.FelhasznaloId, dcp.IntezmenyId, dcp.IntezmenyAzonosito, dcp.TanevId), dcp.DalHandler))
                .GetOraFilesByDateRange(request.DatumTol, request.DatumIg, (int)OraFileTipusEnum.openboard).ToDaoList<OraFileResponseDao>();
            foreach (var orarendElemUid in request.OrarendElemUids.Distinct(new OrarendElemUid()))
            {
                result.Add(orarendElemUid, oraFiles.Where(x => orarendElemUid.Datum == x.OraDatum &&
                                                              ((orarendElemUid.Tipus == CalendarOraTypeEnum.OrarendiOra && orarendElemUid.Id == x.OrarendiOraId) ||
                                                              (orarendElemUid.Tipus == CalendarOraTypeEnum.TanitasiOra && orarendElemUid.Id == x.TanitasiOraId) ||
                                                              (orarendElemUid.Tipus == CalendarOraTypeEnum.TanitasiOra && orarendElemUid.OrarendiOraId == x.OrarendiOraId) ||
                                                              (orarendElemUid.Tipus == CalendarOraTypeEnum.TanitasiOra && orarendElemUid.OrarendiOraGroupId == x.OrarendiOraId)))
                                                              .Select(x => new CsatolmanySimplifiedResponse
                                                              {
                                                                  Uid = new CsatolmanyUid(x.FileId),
                                                                  Nev = x.FileNev
                                                              }).ToList());
            }
            return result;
        }
    }
}