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

namespace EMIS.DataLogic.Common.AdministrativeOrgan
{
    public class DepartmentDAL
    {
        public DepartmentRepository DepartmentRepository { get; set; }
        public DepartmentProfileRepository DepartmentProfileRepository { get; set; }
        public CollegeRepository CollegeRepository { get; set; }
        public UserRepository UserRepository { get; set; }
        public StaffRepository StaffRepository { get; set; }

        /// <summary>
        /// 查询对应的部门信息View
        /// </summary>
        /// <param name="expDepartment"></param>
        /// <returns></returns>
        public IQueryable<DepartmentView> GetDepartmentViewQueryable(Expression<Func<CF_Department, bool>> expDepartment)
        {
            var query = from dep in DepartmentRepository.GetList(expDepartment)
                        join c in UserRepository.Entities
                        on dep.CF_DepartmentProfile.DirectorID equals c.UserID 
                        into gu
                        from guic in gu.DefaultIfEmpty()
                        join d in UserRepository.Entities 
                        on dep.CF_DepartmentProfile.DeputyDirectorID equals d.UserID 
                        into gude
                        from gudeic in gude.DefaultIfEmpty()
                        select new DepartmentView
                        {
                            DepartmentID = dep.DepartmentID,
                            No = dep.No,
                            Name = dep.Name,
                            SimpleName = dep.SimpleName,
                            EnglishName = dep.EnglishName,
                            CampusID = dep.CF_College.CampusID,
                            CampusNo = dep.CF_College.CF_Campus.No,
                            CampusName = dep.CF_College.CF_Campus.Name,
                            CollegeID = dep.CollegeID,
                            CollegeCode = dep.CF_College.No,
                            CollegeName = dep.CF_College.Name,
                            HierarchyID = dep.HierarchyID,
                            DirectorID = dep.CF_DepartmentProfile.DirectorID,
                            DirectorName = guic.Name,
                            DeputyDirectorID = dep.CF_DepartmentProfile.DeputyDirectorID,
                            DeputyDirectorName = gudeic.Name,
                            FoundDate = dep.CF_DepartmentProfile.FoundDate,
                            Remark = dep.Remark,
                            RecordStatus = dep.RecordStatus,
                            CreateUserID = dep.CreateUserID,
                            CreateTime = dep.CreateTime,
                            ModifyUserID = dep.ModifyUserID,
                            ModifyTime = dep.ModifyTime
                        };

            return query;
        }
    }
}