using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMIS.ViewModel.ScoreManage;
using System.Linq.Expressions;
using Bowin.Common.Linq;
using EMIS.Entities;
using EMIS.ViewModel;

namespace EMIS.ExtensionLogic.DataLogic.ScoreManage
{
    public class SpecialityScoreSumDAL : EMIS.DataLogic.ScoreManage.SpecialityScoreSumDAL
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="collegeID"></param>
        /// <param name="years"></param>
        /// <param name="schoolyearNumID"></param>
        /// <param name="schoolcodeID"></param>
        /// <param name="classmajorID"></param>
        /// <returns></returns>
        public override IQueryable<StudentScoreView> GetStudentScoreViewQueryable(Guid? collegeID, int? years, int? schoolyearNumID, int? schoolcodeID, Guid? classmajorID)
        {
            List<int?> examsStateList = examsStateSettingRepository.GetList(x => x.IsNormal == true).Select(x => x.ExamsStateID).ToList();

            Expression<Func<ER_FinallyScore, bool>> exp = (x => true);
            if (collegeID.HasValue)
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.CollegeID == collegeID);
            if (years.HasValue)
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.GradeID == years);
            if (schoolyearNumID.HasValue)
                exp = exp.And(x => x.SchoolyearNumID == schoolyearNumID);
            if (schoolcodeID.HasValue)
                exp = exp.And(x => (x.CF_Student.CF_Classmajor.CF_Grademajor.SemesterID + (x.StarttermID - 1)) % 2 == schoolcodeID % 2);
            if (classmajorID.HasValue)
                exp = exp.And(x => x.CF_Student.ClassmajorID == classmajorID);
            var query = from x in finallyScoreRepository.GetList(exp, (x => x.CF_Student), (x => x.CF_Student.Sys_User), (x => x.CF_Schoolyear), (x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor), (x => x.CF_Student.CF_Classmajor))
                        join ed in DictionaryItemRepository.GetList(x => x.DictionaryCode == typeof(CF_ExamsState).Name) on x.ExamsStateID equals ed.Value
                        into ged
                        from f in ged.DefaultIfEmpty()
                        join d in DictionaryItemRepository.GetList(x => x.DictionaryCode == "CF_ResultType") on x.ResultTypeID equals d.Value
                        join rd in ResultTypeDetailRepository.GetList(x => true) on d.Value equals rd.ResultTypeID
                        into ResultTypeDetail
                        from Result in ResultTypeDetail.DefaultIfEmpty()
                        where (Result.ResultTypeDetailID != null &&
                        ((x.TotalScore <= Result.MaxScore && Result.MinScore <= x.TotalScore && (Result.MaxScoreOperator == "<=" && Result.MinScoreOperator == "<="))
                        || (x.TotalScore <= Result.MaxScore && Result.MinScore < x.TotalScore && (Result.MaxScoreOperator == "<=" && Result.MinScoreOperator == "<"))
                        || (x.TotalScore < Result.MaxScore && Result.MinScore < x.TotalScore && (Result.MaxScoreOperator == "<" && Result.MinScoreOperator == "<"))
                        || (x.TotalScore < Result.MaxScore && Result.MinScore <= x.TotalScore && (Result.MaxScoreOperator == "<" && Result.MinScoreOperator == "<="))
                        ))
                        || (Result.ResultTypeDetailID == null)
                        select new StudentScoreView
                        {
                            SchoolyearID = x.SchoolyearID,
                            SchoolyearCode = x.CF_Schoolyear.Code,
                            SchoolyearNumID = x.SchoolyearNumID,
                            ClassName = x.ClassName,
                            GrademajorID = x.CF_Student.CF_Classmajor.CF_Grademajor.GrademajorID,
                            GrademajorCode = x.CF_Student.CF_Classmajor.CF_Grademajor.Code,
                            GrademajorName = x.CF_Student.CF_Classmajor.CF_Grademajor.Name,
                            ClassmajorID = x.CF_Student.CF_Classmajor.ClassmajorID,
                            ClassmajorCode = x.CF_Student.CF_Classmajor.No,
                            ClassmajorName = x.CF_Student.CF_Classmajor.Name,
                            CollegeID = x.CF_Department.CollegeID,
                            CollegeName = x.CF_Department.CF_College.Name,
                            DepartmentID = x.DepartmentID,
                            DepartmentName = x.CF_Department.Name,
                            CoursematerialID = x.EM_Coursematerial.CoursematerialID,
                            CourseCode = x.EM_Coursematerial.CourseCode,
                            CourseName = x.EM_Coursematerial.CourseName,
                            CourseTypeID = x.CourseTypeID,
                            ExamsCategoryID = x.ExamsCategoryID,
                            ExaminationModeID = x.ExaminationModeID,
                            Credit = x.Credit ?? 0,
                            ExamsDatetime = x.ExamsDatetime,
                            ResultTypeID = x.ResultTypeID,
                            CreatorUserID = x.CreatorUserID,
                            EntryDeadlineTime = x.EntryDeadlineTime,
                            ExaminationType = x.ExaminationType,
                            StarttermID = x.StarttermID,
                            UserID = x.UserID,
                            LoginID = x.CF_Student.Sys_User.LoginID,
                            UserName = x.CF_Student.Sys_User.Name,
                            ExamsStateID = x.ExamsStateID,
                            TotalScore = x.TotalScore,
                            TotalScoreStr = x.TotalScore < 60 ? "重修" : (examsStateList.Any(w => w.Value == x.ExamsStateID) ? (Result.Name ?? ((double)x.TotalScore).ToString()) : f.Name),
                            ScoreCredit = x.ScoreCredit ?? 0,
                            GradePoint = x.GradePoint,
                            Remarks = x.Remark,
                            StudentScoreRemark = x.Remark,
                            CreateTime = x.CreateTime,
                            CreateUserID = x.CreateUserID,
                            Pingshi = Math.Round(x.ER_FinallyScoreDetail.Where(q => q.ScoreTypeID == (int)EMIS.ViewModel.CF_ScoreType.Peacetime).FirstOrDefault().Score ?? 0, 0),
                            Jishu = Math.Round(x.ER_FinallyScoreDetail.Where(q => q.ScoreTypeID == (int)EMIS.ViewModel.CF_ScoreType.Technique).FirstOrDefault().Score ?? 0, 0),
                            Lilun = Math.Round(x.ER_FinallyScoreDetail.Where(q => q.ScoreTypeID == (int)EMIS.ViewModel.CF_ScoreType.Theoretical).FirstOrDefault().Score ?? 0, 0)
                        };
            return query.OrderByDescending(x => x.SchoolyearCode);
        }

    }
}