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

namespace EMISOnline.CommonLogic.EducationalServices
{
    public class FacultymajorServices : BaseServices, IFacultymajorServices
    {
        public FacultymajorDAL FacultymajorDAL { get; set; }

        public IGridResultSet<FacultymajorView> GetFacultymajorList(int pageIndex, int pageSize, string collegeName, string standardName, int? educationID,
            int? learningformID)
        {
            Expression<Func<FacultymajorView, bool>> exp = (e => true);
            if (!string.IsNullOrEmpty(collegeName))
            {
                exp = exp.And(e => e.CollegeName.Contains(collegeName.Trim()));
            }
            if (!string.IsNullOrEmpty(standardName))
            {
                exp = exp.And(e => e.StandardName.Contains(standardName.Trim()));
            }
            if (educationID.HasValue && educationID > 0)
            {
                exp = exp.And(e => e.EducationID == educationID);
            }
            if (learningformID.HasValue && learningformID > 0)
            {
                exp = exp.And(e => e.LearningformID == learningformID);
            }
            var list = FacultymajorDAL.GetFacultymajorList().Where(exp).OrderBy(x => x.CollegeCode.Length).ThenBy(x => x.CollegeCode)
                .ThenBy(x => x.StandardID).ThenBy(x => x.Code).ToGridResultSet(pageIndex, pageSize);

            return list;
        }
    }
}