using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMISOnline.Entities;
using Bowin.Common.Linq.Entity;
using System.Linq.Expressions;
using EMISOnline.ViewModel.Educational;
using Bowin.Common.Linq;
using EMISOnline.DataLogic.Educational;

namespace EMISOnline.CommonLogic.EducationalServices
{
    public class TeachingPlanServices : BaseServices, ITeachingPlanServices
    {
        public TeachingPlanDAL TeachingPlanDAL { get; set; }

        public IGridResultSet<TeachingPlanView> GetTeachingPlanList(int pageIndex, int pageSize, string grademajorName, string facultymajorName, string courseName)
        {
            Expression<Func<TeachingPlanView, bool>> exp = (e => true);
            if (!string.IsNullOrEmpty(grademajorName))
            {
                exp = exp.And(e => e.GrademajorName.Contains(grademajorName.Trim()));
            }
            if (!string.IsNullOrEmpty(facultymajorName))
            {
                exp = exp.And(e => e.StandardName.Contains(facultymajorName.Trim()));
            }
            if (!string.IsNullOrEmpty(courseName))
            {
                exp = exp.And(e => e.CourseName.Contains(courseName.Trim()));
            }

            var list = TeachingPlanDAL.GetTeachingPlanList().Where(exp).OrderByDescending(r => r.SchoolyearValue).ThenBy(x => x.CourseName).ToGridResultSet(pageIndex, pageSize);

            return list;
        }
    }
}