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

namespace EMIS.DataLogic.PaymentManage
{
    public class TeacherTypePaymentFormulaDAL
    {
        public PaymentFormulaRepository PaymentFormulaRepository { get; set; }
        public TeacherTypePaymentFormulaRepository TeacherTypePaymentFormulaRepository { get; set; }
        public DictionaryItemRepository DictionaryItemRepository { get; set; }

        public IQueryable<TeacherTypePaymentFormulaView> GetTeacherTypePaymentFormulaViewQueryable(Expression<Func<Sys_DictionaryItem, bool>> exp)
        {
            var defaultPaymentFormula = PaymentFormulaRepository.GetSingle(x => x.IsDefault == true);
            var teacherTypeExpression = exp.And(x => x.DictionaryCode == typeof(CF_TeacherType).Name);
            var q = (from teacherType in DictionaryItemRepository.GetList(teacherTypeExpression)
                     join setting in TeacherTypePaymentFormulaRepository.Entities on teacherType.Value equals setting.TeacherType into dsetting 
                     from setting in dsetting.DefaultIfEmpty()
                     select new TeacherTypePaymentFormulaView 
                     {
                         TeacherType = teacherType.Value,
                         PaymentFormulaID = setting == null ? defaultPaymentFormula.PaymentFormulaID : setting.PaymentFormulaID,
                         StudentCountRateFormunla = setting == null ? defaultPaymentFormula.StudentCountRateFormunla : setting.TP_PaymentFormula.StudentCountRateFormunla,
                         PaymentFormula = setting == null? defaultPaymentFormula.PaymentFormula : setting.TP_PaymentFormula.PaymentFormula,
                         OrderNo = teacherType.OrderNo
                     });

            return q;
        }

        public IQueryable<PaymentFormlulaView> GetPaymentFormulaViewQueryable()
        {
            var q = (from formula in PaymentFormulaRepository.Entities
                     select new PaymentFormlulaView
                     {
                         PaymentFormulaID = formula.PaymentFormulaID,
                         Name = formula.Name,
                         StudentCountRateFormunla = formula.StudentCountRateFormunla,
                         PaymentFormula = formula.PaymentFormula,
                         IsDefault = formula.IsDefault
                     });

            return q;
        }
    }
}