using System;
using System.Collections.Generic;
using System.Linq;
using EMIS.DataLogic.EducationManage;
using Bowin.Common.Linq.Entity;
using EMIS.ViewModel.EducationManagement;
using EMIS.ViewModel;
using EMIS.Entities;
using System.Linq.Expressions;

namespace EMIS.CommonLogic.Students
{
    class StudentEdcationMissionClassServices:BaseServices,IStudentEdcationMissionClassServices
    {
        public EducationMissionClassDAL educationMissionClassDAL { get; set; }
        public Bowin.Common.Linq.Entity.IGridResultSet<EducationMissionClassView> GetEducationMissionClassViewGrid(Guid user, int pageIndex, int pageSize)
        {
            Expression<Func<EM_EducationMissionClass, bool>> exp = (x => true);
            var query = educationMissionClassDAL.GetEducationMissionClassViewQueryble(exp);
            //if (!string.IsNullOrEmpty(configuretView.ConditionValue))
            //    query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue);
            query = query.Where(x => x.CF_Student.Any(w => w.UserID == user));
            var result = this.GetQueryByDataRangeByDepartment(query).OrderByDescending(x => x.SchoolyearCode)
                .ThenBy(x => x.CollegeNo.Length).ThenBy(x => x.CollegeNo).ThenByDescending(x => x.GradeYearID)
                .ThenBy(x => x.StandardID).ThenBy(x => x.CourseName).ThenBy(x => x.OrderNo).ThenBy(x => x.Name)
                .ToGridResultSet<EducationMissionClassView>(pageIndex, pageSize);
            var educationMissionClassID = result.rows.Select(x => x.EducationMissionClassID).ToList();
            var missionClassTeacherList = educationMissionClassDAL.GetMissionClassTeacherQuery(x => educationMissionClassID.Contains(x.EducationMissionClassID)).ToList();
            result.rows.ForEach(x => x.MissionClassTeacherView = new HashSet<MissionClassTeacherView>(missionClassTeacherList.Where(y => y.EducationMissionClassID == x.EducationMissionClassID)));
            return result;
        }
    }
}