/// <summary>
        /// Generate PhieuXuat based on PhieuKiemKe
        /// </summary>
        /// <param name="lstItems"></param>
        /// <returns></returns>
        private int GeneratePhieuXuat(IEnumerable <PhieuKiemKeChiTiet> lstItems)
        {
            var maNhaThuoc = this.GetNhaThuoc().MaNhaThuoc;
            var phieuXuat  = new PhieuXuat
            {
                MaPhieuXuat    = 0,
                NhaThuoc       = unitOfWork.NhaThuocRepository.GetById(this.GetNhaThuoc().MaNhaThuoc),
                CreatedBy      = unitOfWork.UserProfileRepository.GetById(WebSecurity.GetCurrentUserId),
                MaLoaiXuatNhap = 3,
                // KhachHang = 1,
                // NgayTao = DateTime.Today,
                NgayXuat          = DateTime.Today,
                DaTra             = 0,
                VAT               = 0,
                SoPhieuXuat       = db.PhieuXuats.Where(x => x.NhaThuoc.MaNhaThuoc == maNhaThuoc).OrderByDescending(x => x.SoPhieuXuat).FirstOrDefault().SoPhieuXuat,
                PhieuXuatChiTiets = new List <PhieuXuatChiTiet>()
            };
            var thuocsUtil = new ThuocsUtil(db, this.GetNhaThuoc().MaNhaThuoc);

            foreach (var xuat in lstItems)
            {
                //var lstThuoc = thuocsUtil.GetThuocsLeft(xuat.ThuocId, Math.Abs((int)(xuat.TonKho - xuat.ThucTe))).ToList();
                var maDonViTinh =
                    db.Thuocs.FirstOrDefault(x => x.ThuocId == xuat.Thuoc.ThuocId)
                    .DonViXuatLe.MaDonViTinh;
                //foreach (var thuoc in lstThuoc)
                //{
                phieuXuat.PhieuXuatChiTiets.Add(new PhieuXuatChiTiet()
                {
                    //ThuocId = xuat.ThuocId,
                    // MaNhaThuoc = this.GetNhaThuoc().MaNhaThuoc,
                    // MaDonViTinh = maDonViTinh,
                    //SoLuong = thuoc.SoLuong,
                    SoLuong = Math.Abs((int)(xuat.TonKho - xuat.ThucTe)),
                    //HanDung = thuoc.HanDung,
                    MaPhieuXuatCt = 0
                });
                //}
                //if (lstThuoc.Count > 0 && lstThuoc.ElementAt(0).Message != null)
                //{
                //    phieuXuat.PhieuXuatChiTiets.Add(new PhieuXuatChiTiet()
                //    {
                //        ThuocId = xuat.ThuocId,
                //        MaNhaThuoc = this.GetNhaThuoc().MaNhaThuoc,
                //        MaDonViTinh = maDonViTinh,
                //        SoLuong = int.Parse(lstThuoc.ElementAt(0).Message),
                //        //HanDung =
                //        //    db.PhieuXuatChiTiets.Where(x => x.ThuocId == xuat.ThuocId)
                //        //        .OrderByDescending(x => x.HanDung)
                //        //        .FirstOrDefault()
                //        //        .HanDung,
                //        MaPhieuXuatCt = 0
                //    });
                //}
            }
            db.PhieuXuats.Add(phieuXuat);
            db.SaveChanges();

            return(phieuXuat.MaPhieuXuat);
        }