using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMIS.DataLogic.DQPSystem;
using Bowin.Common.Linq.Entity;
using EMIS.ViewModel.DQPSystem;
using EMIS.ViewModel;
using System.Linq.Expressions;
using EMIS.Entities;
using Bowin.Common.Linq;
using EMIS.ViewModel.Students;

namespace EMIS.CommonLogic.DQPSystem
{
    public class SOCDetailGroupServices : BaseServices, ISOCDetailGroupServices
    {
        public SOCDAL SOCDAL { get; set; }
        public SOCDetailGroupDAL SOCDetailGroupDAL { get; set; }
        public IGridResultSet<SOCDetailView> GetSOCDetailViewGrid(ConfiguretView configuretView, Guid? schoolyearID, Guid? collegeID, int? schoolyearNumID, int? standardID, Guid? coursematerialID, int pageIndex, int pageSize)
        {
            Expression<Func<DQP_SOCDetail, bool>> exp = x => true;
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            exp = exp.And(x => x.DQP_SOC.DQP_SOCStaff.Any(y => y.UserID == curUser.UserID));
            exp = exp.And(x => x.IsGroup == true);
            if (schoolyearID.HasValue)
            {
                exp = exp.And(x => x.DQP_SOC.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue)
            {
                //exp = exp.And(x => x.DQP_SOC == collegeID);
            }
            if (coursematerialID.HasValue)
            {
                exp = exp.And(x => x.DQP_SOC.CoursematerialID == coursematerialID);
            }
            if (!curUser.IsStudent)
            {
                exp = exp.And(x => x.CreateUserID == curUser.UserID);
            }
            var query = SOCDAL.GetSOCDetailViewQueryable(exp);

            //查询条件
            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
            {
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue.Trim());
            }

            var result = query
                   .OrderBy(x => x.SOCID)
                   .ThenBy(x => x.Name.Length).ThenBy(x => x.Name)
                   .ToGridResultSet<SOCDetailView>(pageIndex, pageSize);
            return result;
        }

        public IGridResultSet<SOCDetailGroupView> GetSOCDetailGroupViewGrid(ConfiguretView configuretView, Guid? detailID, int pageIndex, int pageSize)
        {
            Expression<Func<DQP_SOCDetailGroup, bool>> exp = x => true;
            if (detailID.HasValue)
            {
                exp = exp.And(x => x.SOCDetailID == detailID);
            }
            var query = SOCDetailGroupDAL.GetSOCDetailGroupViewQueryable(exp);
            return query.OrderBy(x => x.No).ToGridResultSet<SOCDetailGroupView>(pageIndex, pageSize);
        }

        public List<SOCDetailGroupView> GetSOCDetailGroupViewList(ConfiguretView configuretView, Guid? detailID)
        {
            Expression<Func<DQP_SOCDetailGroup, bool>> exp = x => true;
            if (detailID.HasValue)
            {
                exp = exp.And(x => x.SOCDetailID == detailID);
            }
            var query = SOCDetailGroupDAL.GetSOCDetailGroupViewQueryable(exp);
            return query.OrderBy(x => x.No).ToList();
        }

        public GroupSOCDetailView GetGroupSOCDetailViewGrid(Guid? detailID)
        {
            Expression<Func<DQP_SOCDetail, bool>> exp = x => true;
            if (detailID.HasValue)
            {
                exp = exp.And(x => x.SOCDetailID == detailID);
            }
            var query = SOCDetailGroupDAL.GetGroupSOCDetailViewQueryable(exp);
            return query.FirstOrDefault();
        }

        public void GroupSOCDetailSave(GroupSOCDetailView groupSOCDetailView)
        {
            try
            {
                var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
                Expression<Func<DQP_SOC, bool>> exp = x => true;
                if (groupSOCDetailView != null)
                {
                    List<DQP_SOCDetailGroup> SOCDetailGroupList = new List<DQP_SOCDetailGroup>();
                    exp = exp.And(x => x.DQP_SOCDetail.Any(y => y.SOCDetailID == groupSOCDetailView.SOCDetailID));
                    var dbSOCDetailGroupList = SOCDetailGroupDAL.SOCDetailGroupRepository.GetList(x => x.SOCDetailID == groupSOCDetailView.SOCDetailID).ToList() ;
                    //var query = SOCDetailGroupDAL.SOCRepository.GetList(exp, (x => x.DQP_SOCStaff.FirstOrDefault(y => y.UserID == curUser.UserID).CF_Student), (x => x.DQP_SOCStaff.FirstOrDefault(y => y.UserID == curUser.UserID).CF_Student.Select(w => w.Sys_User))).ToList();
                    var stuIDList = SOCDetailGroupDAL.GetStudentListForGroup(groupSOCDetailView.SOCDetailID).Select(x => x.UserID).ToList();
                    var stuList = SOCDetailGroupDAL.studentRepository.GetList(x => stuIDList.Contains(x.UserID), x => x.Sys_User).ToList();
                    var stuOrderLoginID = stuList.OrderBy(x => x.ClassmajorID).ThenBy(x => x.Sys_User.LoginID).ToList();
                    var stuCount = stuList.Count();
                    if (!groupSOCDetailView.IsManual)
                    {
                        //不是手动分组的，删掉原来的再重新分组
                        //UnitOfWork.Delete<DQP_SOCDetailGroup>(x => x.SOCDetailID == groupSOCDetailView.SOCDetailID);
                        var socDetailGroupList = SOCDetailGroupDAL.SOCDetailGroupRepository.GetList(x => x.SOCDetailID == groupSOCDetailView.SOCDetailID, x => x.CF_Student);
                        //删除学生
                        foreach (var socdetailGroup in socDetailGroupList)
                        {
                            socdetailGroup.CF_Student = new HashSet<CF_Student>();
                        }

                        UnitOfWork.Remove<DQP_SOCDetailGroup>(x => x.SOCDetailID == groupSOCDetailView.SOCDetailID);
                        UnitOfWork.Commit();
                        if (groupSOCDetailView.GroupByGroup)
                        {
                            var groupnum = groupSOCDetailView.GroupNum;
                            var other = stuCount % groupnum;
                            var stunum = stuCount / groupnum;
                            for (var i = 0; i < groupnum; i++)
                            {
                                DQP_SOCDetailGroup SOCDetailGroup = new DQP_SOCDetailGroup();
                                SOCDetailGroup.SOCDetailGroupID = Guid.NewGuid();
                                SOCDetailGroup.SOCDetailID = groupSOCDetailView.SOCDetailID;
                                SOCDetailGroup.No = (i + 1);
                                this.SetNewStatus(SOCDetailGroup);
                                if (groupSOCDetailView.IsStudentNo)
                                {
                                    if (other != 0 && (i + 1) == groupnum)
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuOrderLoginID.Take((stunum + other) ?? 0).ToList());
                                    }
                                    else
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuOrderLoginID.Take(stunum ?? 0).ToList());
                                        stuOrderLoginID = stuOrderLoginID.Skip(stunum ?? 0).ToList();
                                    }
                                }
                                else if (groupSOCDetailView.IsRandom)
                                {
                                    if (other != 0 && (i + 1) == groupnum)
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuList.Take((stunum + other) ?? 0).ToList());
                                    }
                                    else
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuList.Take(stunum ?? 0).ToList());
                                        stuList = stuList.Skip(stunum ?? 0).ToList();
                                    }
                                }
                                SOCDetailGroupList.Add(SOCDetailGroup);
                            }
                        }
                        else if (groupSOCDetailView.GroupByStudent)
                        {
                            var stuNum = groupSOCDetailView.StudentNum;
                            var other = stuCount % stuNum;
                            var groupNum = stuCount / stuNum;
                            for (var i = 0; i < groupNum; i++)
                            {
                                DQP_SOCDetailGroup SOCDetailGroup = new DQP_SOCDetailGroup();
                                SOCDetailGroup.SOCDetailGroupID = Guid.NewGuid();
                                SOCDetailGroup.SOCDetailID = groupSOCDetailView.SOCDetailID;
                                SOCDetailGroup.No = (i + 1);
                                this.SetNewStatus(SOCDetailGroup);
                                if (groupSOCDetailView.IsStudentNo)
                                {
                                    if (other != 0 && (i + 1) == groupNum)
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuOrderLoginID.Take((stuNum + other) ?? 0).ToList());
                                    }
                                    else
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuOrderLoginID.Take(stuNum ?? 0).ToList());
                                        stuOrderLoginID = stuOrderLoginID.Skip(stuNum ?? 0).ToList();
                                    }
                                }
                                else if (groupSOCDetailView.IsRandom)
                                {
                                    if (other != 0 && (i + 1) == groupNum)
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuList.Take((stuNum + other) ?? 0).ToList());
                                    }
                                    else
                                    {
                                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>(stuList.Take(stuNum ?? 0).ToList());
                                        stuList = stuList.Skip(stuNum ?? 0).ToList();
                                    }
                                }
                                SOCDetailGroupList.Add(SOCDetailGroup);
                            }
                        }
                    }
                    else if (groupSOCDetailView.IsManual)
                    {
                        var dbnum = dbSOCDetailGroupList.Max(x => x.No) == null ? 0 : dbSOCDetailGroupList.Max(x => x.No);
                        var GroupNo = dbnum + 1;
                        var groupNum = groupSOCDetailView.GroupNum;
                        for (var i = 0; i < groupNum; i++)
                        {
                            DQP_SOCDetailGroup SOCDetailGroup = new DQP_SOCDetailGroup();
                            SOCDetailGroup.SOCDetailGroupID = Guid.NewGuid();
                            SOCDetailGroup.SOCDetailID = groupSOCDetailView.SOCDetailID;
                            SOCDetailGroup.No = GroupNo;
                            this.SetNewStatus(SOCDetailGroup);
                            SOCDetailGroupList.Add(SOCDetailGroup);
                            GroupNo++;
                        }
                    }

                    UnitOfWork.BulkInsert(SOCDetailGroupList);
                    UnitOfWork.BulkInsert(SOCDetailGroupList, x => x.CF_Student);
                }
            }
            catch (Exception)
            {
                
                throw;
            }
        }

        public SOCDetailGroupView GetSOCDetailGroupView(Guid? SOCDetailGroupID)
        {
            var socDetailGroupView = SOCDetailGroupDAL.GetSOCDetailGroupViewQueryable(x => x.SOCDetailGroupID == SOCDetailGroupID).FirstOrDefault();
            return socDetailGroupView;
        }

        public IGridResultSet<BaseStudentView> GetSOCDetailGroupStudent(Guid? SOCDetailGrpuoID)
        {
            return SOCDetailGroupDAL.GetSOCDetailGroupViewStudentList(SOCDetailGrpuoID).OrderBy(x => x.LoginID).ToGridResultSet<BaseStudentView>();
        }

        public void SOCDetailGroupStudentAdd(Guid? SOCDetailGroupID, List<BaseStudentView> listBaseStudentView)
        {
            if (SOCDetailGroupID.HasValue)
            {
                if (listBaseStudentView.Count > 0)
                {
                    var SOCDetailGroup = SOCDetailGroupDAL.SOCDetailGroupRepository.GetSingle(x => x.SOCDetailGroupID == SOCDetailGroupID, x => x.CF_Student);
                    var StuIDList = listBaseStudentView.Select(x => x.UserID).ToList();
                    var studentList = SOCDetailGroupDAL.studentRepository.GetList(x => StuIDList.Contains(x.UserID)).ToList();
                    if (SOCDetailGroup != null)
                    {
                        SOCDetailGroup.CF_Student = new HashSet<CF_Student>();
                        foreach (var student in studentList)
                        {
                            SOCDetailGroup.CF_Student.Add(student);
                        }
                    }
                }
                else {
                    var SOCDetailGroup = SOCDetailGroupDAL.SOCDetailGroupRepository.GetSingle(x => x.SOCDetailGroupID == SOCDetailGroupID, x => x.CF_Student);
                    SOCDetailGroup.CF_Student = new HashSet<CF_Student>();
                }
                UnitOfWork.Commit();
            }
        }

        public IGridResultSet<BaseStudentView> GetNotGroupStudent(ConfiguretView configuretView, Guid? SOCDetailGrpuoID)
        {
            var query = SOCDetailGroupDAL.GetNotGroupStudentList(SOCDetailGrpuoID);
            //查询条件
            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
            {
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue.Trim());
            }
            return query.OrderBy(x => x.LoginID).ToGridResultSet<BaseStudentView>();
        }

        public void SOCDetailGroupDelete(List<Guid?> idList)
        {
            try
            {
                if (idList.Count > 0)
                {
                    var socDetailGroupList = SOCDetailGroupDAL.SOCDetailGroupRepository.GetList(x => idList.Contains(x.SOCDetailGroupID), x => x.CF_Student);
                    //删除学生
                    foreach (var socdetailGroup in socDetailGroupList)
                    {
                        socdetailGroup.CF_Student = new HashSet<CF_Student>();
                    }
                    
                    UnitOfWork.Remove<DQP_SOCDetailGroup>(x => idList.Contains(x.SOCDetailGroupID));
                    UnitOfWork.Commit();

                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }


        public List<Guid?> GetUserIDByGroupID(List<Guid> groupIDList)
        {
            var groupList = SOCDetailGroupDAL.SOCDetailGroupRepository.GetList(x => groupIDList.Contains(x.SOCDetailGroupID), (x => x.CF_Student));
            List<Guid?> userIDList = new List<Guid?>();
            foreach (var group in groupList)
            {
                foreach (var stu in group.CF_Student)
                {
                    userIDList.Add(stu.UserID);
                }
            }
            return userIDList.Distinct().ToList();
        }
    }
}