using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMIS.DataLogic.Repositories;
using EMIS.Entities;
using EMIS.ViewModel.TeachingMaterial;
using System.Linq.Expressions;

namespace EMIS.DataLogic.Common.TeachingMaterial
{

    public class LibraryDAL
    {
        public LibraryRepository LibraryRepository { get; set; }
        public UserRepository UserRepository { get; set; }
        public CampusRepository CampusRepository { get; set; }

        /// <summary>
        /// 获取出版单位信息列表
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<LibraryView> GetLibraryGridView(Expression<Func<CF_Library, bool>> exp)
        {
            var view = (from l in LibraryRepository.Entities.Where(exp)
                        join c in CampusRepository.Entities on l.CampusID equals c.CampusID
                        join u in UserRepository.Entities on l.CreateUserID equals u.UserID
                        select new LibraryView
                       {
                           LibraryID = l.LibraryID,
                           LibraryCode = l.LibraryCode,
                           LibraryName = l.LibraryName,
                           HeadPeople =l.HeadPeople,
                           ContectTelNumber = l.ContectTelNumber,
                           Desc = l.Desc,
                           CampusCode = c.No,
                           CampusName = c.Name,
                           CampusID = l.CampusID,
                           CreateTime = l.CreateTime,
                           CreateUserName = u.Name
                       });
            return view;
        }

        /// <summary>
        /// 获取出版单位单位
        /// </summary>
        /// <returns></returns>
        public LibraryView GetSingleLibrary(Guid libraryID)
        {
            var library = LibraryRepository.GetSingle(x => x.LibraryID == libraryID,
                (x => x.CF_Campus));
            var publishView = new LibraryView()
            {
                LibraryID = library.LibraryID,
                LibraryName = library.LibraryName,
                LibraryCode = library.LibraryCode,
                ContectTelNumber = library.ContectTelNumber,
                Desc = library.Desc,
                HeadPeople = library.HeadPeople,
                CampusID = library.CampusID,
                CampusCode = library.CF_Campus.No,
                CampusName = library.CF_Campus.Name
            };
            return publishView;
        }
     
    }
}