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

namespace EMIS.DataLogic.SystemDAL
{
    public class FunctionDAL
    {
        public FunctionCodeRepository FunctionCodeRepository { get; set; }
        public RoleRepository RoleRepository { get; set; }

        public IQueryable<FunctionCodeView> GetAllFunctionCodeView()
        {
            var q = (from fc in FunctionCodeRepository.Entities
                     select new FunctionCodeView 
                     {
                         FunctionCode = fc.FunctionCode,
                         FunctionName = fc.FunctionName,
                         ParentFunctionCode = fc.ParentFunctionCode,
                         OrderNo = fc.OrderNo
                     }
                ).Distinct();

            return q;
        }

        public IQueryable<FunctionCodeView> GetSelectedFunctionCodeViewByRole(Expression<Func<Sys_Role, bool>> exp)
        {
            var q = (from r in RoleRepository.GetList(exp)
                     from fc in r.Sys_FunctionCode
                     select new FunctionCodeView
                     {
                         FunctionCode = fc.FunctionCode,
                         FunctionName = fc.FunctionName,
                         ParentFunctionCode = fc.ParentFunctionCode,
                         OrderNo = fc.OrderNo
                     }
                ).Distinct();

            return q;
        }
    }
}