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

namespace EMIS.DataLogic.PaymentManage
{
    public class StaffStandardDAL
    {
        public StaffStandardRepository StaffStandardRepository { get; set; }
        public StaffRepository StaffRepository { get; set; }
        public UserRepository UserRepository { get; set; }
        public DepartmentRepository DepartmentRepository { get; set; }
        public CollegeRepository CollegeRepository { get; set; }

        public IQueryable<StaffStandardView> GetStaffStandardViewQueryable(Expression<Func<TP_StaffStandard, bool>> exp,
            Expression<Func<CF_Department, bool>> departmentExp,
            Expression<Func<CF_College, bool>> collegeExp)
        {
            var sql = (from standard in StaffStandardRepository.GetList(exp) 
                       join staff in StaffRepository.Entities on standard.UserID equals staff.UserID 
                       join user in UserRepository.Entities on staff.UserID equals user.UserID 
                       join department in DepartmentRepository.Entities.Where(departmentExp) on staff.DepartmentID equals department.DepartmentID 
                       join college in CollegeRepository.Entities.Where(collegeExp) on staff.CollegeID equals college.CollegeID 
                       select new StaffStandardView 
                       {
                           StaffStandardID = standard.StaffStandardID,
                           UserID = staff.UserID,
                           LoginID = user.LoginID,
                           UserName = user.Name,
                           DepartmentID = department.DepartmentID,
                           DepartmentName = department.Name,
                           CollegeID = college.CollegeID,
                           CollegeNo = college.No,
                           CollegeName = college.Name,
                           Amount = standard.Amount
                       });

            return sql;
        }
    }
}