using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMIS.DataLogic.Common.Students.HighBaseTable;
using EMIS.CommonLogic.SystemServices;
using EMIS.Entities;

namespace EMIS.CommonLogic.Students.HighBaseTable
{
    public class StudentChangeServices : BaseServices, IStudentChangeServices
    {
        public StudentChangeDAL StudentChangeDAL { get; set; }
        public Lazy<IWorkflowServices> WorkflowServices { get; set; }

        public void GenerateReport(int year)
        {
            var endStatusID = WorkflowServices.Value.GetCorrectEndStatus(typeof(CF_DifferentDynamic).Name);
            //获取上学年初报表在校生数
            var lastReportList = StudentChangeDAL.GetLastInschoolStudentCount(year).ToList();
            //获取招生数
            var recruitStudentList = StudentChangeDAL.GetRecruitStudentCount(year).ToList();
            //获取毕业数
            var graduationStudentList = StudentChangeDAL.GetGraduationStudentCount(year).ToList();
            //获取结业数
            var graduationOverStudentList = StudentChangeDAL.GetGraduationOverStudentCount(year).ToList();
            //获取本学期报表在校学生数
            var currentStudentList = StudentChangeDAL.GetCurrentInschoolStudentCount().ToList();
            //获取异动学生数
            var studentChangeList = StudentChangeDAL.GetStudentChangeCount(year, endStatusID).ToList();

            this.UnitOfWork.Remove<HB_StudentChangeDetail>(x => x.HB_StudentChange.Year == year);
            this.UnitOfWork.Remove<HB_StudentChange>(x => x.Year == year);

            #region 合并各种主表数据，并生成主表实体
            var studentChangeTableList = lastReportList
                .Select(x => new
                {
                    x.EducationTypeID,
                    LastInschoolCount = x.CurrentInschoolCount,
                    RecruitCount = (int?)0,
                    GraduationCount = (int?)0,
                    CompleteCount = (int?)0,
                    CurrentInschoolCount = (int?)0
                }).Concat(recruitStudentList
                .Select(x => new
                {
                    x.EducationTypeID,
                    LastInschoolCount = (int?)0,
                    RecruitCount = x.StudentCount,
                    GraduationCount = (int?)0,
                    CompleteCount = (int?)0,
                    CurrentInschoolCount = (int?)0
                })).Concat(graduationStudentList
                .Select(x => new
                {
                    x.EducationTypeID,
                    LastInschoolCount = (int?)0,
                    RecruitCount = (int?)0,
                    GraduationCount = x.StudentCount,
                    CompleteCount = (int?)0,
                    CurrentInschoolCount = (int?)0
                })).Concat(graduationOverStudentList
                .Select(x => new
                {
                    x.EducationTypeID,
                    LastInschoolCount = (int?)0,
                    RecruitCount = (int?)0,
                    GraduationCount = (int?)0,
                    CompleteCount = x.StudentCount,
                    CurrentInschoolCount = (int?)0
                })).Concat(currentStudentList
                .Select(x => new
                {
                    x.EducationTypeID,
                    LastInschoolCount = (int?)0,
                    RecruitCount = (int?)0,
                    GraduationCount = (int?)0,
                    CompleteCount = (int?)0,
                    CurrentInschoolCount = x.StudentCount
                }))
                .GroupBy(x => x.EducationTypeID).Select(x => new HB_StudentChange
                {
                    StudentChangeID = Guid.NewGuid(),
                    Year = year,
                    EducationTypeID = x.Key,
                    LastInschoolCount = x.Sum(w => w.LastInschoolCount),
                    RecruitCount = x.Sum(w => w.RecruitCount),
                    GraduationCount = x.Sum(w => w.GraduationCount),
                    CompleteCount = x.Sum(w => w.CompleteCount),
                    CurrentInschoolCount = x.Sum(w => w.CurrentInschoolCount)
                })
                .ToList();
            #endregion

            studentChangeTableList.ForEach(x =>
                {
                    this.SetNewStatus(x);

                    var detailList = studentChangeList.Where(w => w.EducationTypeID == x.EducationTypeID)
                        .Select(w => new HB_StudentChangeDetail
                        {
                            StudentChangeDetailID = Guid.NewGuid(),
                            StudentChangeID = x.StudentChangeID,
                            DifferentDynamicType = w.DifferentDynamicType ?? 0,
                            StudentInCount = w.StudentInCount,
                            StudentOutCount = w.StudentOutCount
                        }).ToList();
                    detailList.ForEach(w => this.SetNewStatus(w));

                    x.HB_StudentChangeDetail = new HashSet<HB_StudentChangeDetail>(detailList);

                    this.UnitOfWork.Add(x);
                });

            this.UnitOfWork.Commit();
        }
    }
}