using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using TourDuLich.DAL;

namespace TourDuLich.BIZ
{
    public class BizTour
    {
        int id;
        public int Id
        {
            get { return id; }
            set { id = value; }
        }

        String maTour;
        public String MaTour
        {
            get { return maTour; }
            set { maTour = value; }
        }

        String tenTour;
        public String TenTour
        {
            get { return tenTour; }
            set { tenTour = value; }
        }

        bool laTourTrongNuoc;
        public bool LaTourTrongNuoc
        {
            get { return laTourTrongNuoc; }
            set { laTourTrongNuoc = value; }
        }

        BizLoaiTour loaiTour;
        public BizLoaiTour LoaiTour
        {
            get { return loaiTour; }
            set { loaiTour = value; }
        }

        public string TenLoaiTour
        {
            get { return LoaiTour == null ? String.Empty : LoaiTour.TenLoai; }           
        }

        public BizTour(int _id)
        {
            Id = _id;
        }

        public BizTour(int _id, String _ma, String _ten,
            bool _laTourTN, BizLoaiTour _loaiTour) : this(_id)
        {           
            MaTour = _ma;
            TenTour = _ten;
            laTourTrongNuoc = _laTourTN;
            LoaiTour = _loaiTour;
        }

        internal static List<BizTour> GetAllTours()
        {
            return DalTour.getAllTours();
        }

        internal void Delete()
        {
            DalTour.Delete(this);
        }

        List<BizGiaTour> gias = null;
        internal List<BizGiaTour> Gias
        {
            get
            {
                if (gias == null)
                    gias = DalTour.GetGiaByTour(this);
                return gias;
            }
            set { gias = value; }
        }

        /*
         * Cập nhật lại giá trị đang áp dụng của tất cả các giá
         */
        internal void CapNhatGiaDangApDung(BizGiaTour giaDangApDung)
        {
            foreach (BizGiaTour gia in Gias)
            {
                if (gia != giaDangApDung && !gia.DangApDung)
                    gia.DangApDung = false;
            }
        }

        internal void Save()
        {
            // update thông tin tour
            DalTour.UpdateTour(this);

            // giá
            DalTour.DeleteGiaByTour(this);
            DalTour.InsertGiaByTour(this);

            // địa điểm
            DalTour.DeleteDDByTour(this);
            DalTour.InsertDDByTour(this);
        }

        List<BizDiaDiem> diaDiems;
        public List<BizDiaDiem> DiaDiems
        {
            get {
                if (diaDiems == null)
                    diaDiems = DalDiaDiem.getDiaDiemByTour(this);
                return diaDiems; }
            set { diaDiems = value; }
        }


        internal void Add()
        {
            Id = DalTour.Insert(this);
        }

        public string GiaDangApDung
        {
            get
            {
                string result = String.Empty;
                foreach (BizGiaTour gia in Gias)
                {
                    if (gia.DangApDung)
                    {
                        result = gia.GiaTri.ToString();
                        break;
                    }
                }

                return result;
            }
        }
    }
}