using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Linq.Expressions;
using Bowin.Common.Linq;
using Bowin.Common.Linq.Entity;
using EMIS.CommonLogic.SystemServices;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.DataLogic.ScoreManage;
using EMIS.ViewModel.Cultureplan;
using EMIS.Utility;

namespace EMIS.CommonLogic.ScoreManage
{
    public class MisconductServices : BaseWorkflowServices<ER_Misconduct>, IMisconductServices
    {
        public ExaminationSuspensionDAL ExaminationSuspensionDAL { get; set; }
        public MisconductDAL MisconductDAL { get; set; }
        public FinalExaminationDAL FinalExaminationDAL { get; set; }
        public ExamsStateSettingDAL ExamsStateSettingDAL { get; set; }
        public Lazy<IScoreServices> ScoreServices { get; set; }

        public Bowin.Common.Linq.Entity.IGridResultSet<ViewModel.ScoreManage.MisconductView> GetMisconductGridView(ViewModel.ConfiguretView conditions, 
            Guid? schoolyearID, Guid? collegeID, int? year, int? standardID, Guid? classmajorID, int? examsCatagoryID, int? examsStateID,
            int? recordStatus, int? learningformID, int? education, string LearnSystem, int? pageIndex = null, int? pageSize = null)
        {
            Expression<Func<ER_Misconduct, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            var statusList = this.GetStatusViewList();

            if (schoolyearID.HasValue)
            {
                exp = exp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.CollegeID == collegeID);
            }
            if (year.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.GradeID == year);
            }
            if (standardID.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.StandardID == standardID);
            }
            if (classmajorID.HasValue)
            {
                exp = exp.And(x => x.CF_Student.ClassmajorID == classmajorID);
            }
            if (examsCatagoryID.HasValue)
            {
                exp = exp.And(x => x.ExamsCategoryID == examsCatagoryID);
            }
            if (examsStateID.HasValue)
            {
                exp = exp.And(x => x.ExamsStateID == examsStateID);
            }
            if (recordStatus.HasValue)
            {
                exp = exp.And(x => x.RecordStatus == recordStatus);
            }
            if (learningformID.HasValue)
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.LearningformID == learningformID);
            if (!string.IsNullOrEmpty(LearnSystem) && LearnSystem != "-1")
            {
                var LearnSystems = Convert.ToDecimal(LearnSystem);
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.LearnSystem == LearnSystems);
            }
            if (education.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.EducationID == education.Value);
            }
            var query = this.MisconductDAL.GetMisconductViewQueryable(exp);
            if (!string.IsNullOrEmpty(conditions.ConditionValue))
            {
                query = query.DynamicWhere(conditions.Attribute, conditions.Condition, conditions.ConditionValue);
            }
            query = this.GetQueryByDataRangeByCollege(query);

            var result = query.OrderByDescending(x => x.CreateTime).ThenBy(x => x.Year).ThenBy(x => x.StandardID).ToGridResultSet(pageIndex, pageSize);

            result.rows.ForEach(x =>
            {
                var currentStatus = statusList.FirstOrDefault(w => w.ID == x.RecordStatus);
                if (currentStatus != null)
                {
                    x.RecordStatusName = currentStatus.Name;
                }
                else
                {
                    x.RecordStatusName = "";
                }
            });

            return result;
        }

        public List<ViewModel.ScoreManage.MisconductView> GetMisconductViewList(ViewModel.ConfiguretView conditions, Guid? schoolyearID,
            Guid? collegeID, int? year, int? standardID, Guid? classmajorID, int? examsCatagoryID, int? examsStateID, int? recordStatus, int? learningformID, int? education, string LearnSystem)
        {
            Expression<Func<ER_Misconduct, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            var statusList = this.GetStatusViewList();

            if (schoolyearID.HasValue)
            {
                exp = exp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.CollegeID == collegeID);
            }
            if (year.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.GradeID == year);
            }
            if (standardID.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.StandardID == standardID);
            }
            if (classmajorID.HasValue)
            {
                exp = exp.And(x => x.CF_Student.ClassmajorID == classmajorID);
            }
            if (examsCatagoryID.HasValue)
            {
                exp = exp.And(x => x.ExamsCategoryID == examsCatagoryID);
            }
            if (examsStateID.HasValue)
            {
                exp = exp.And(x => x.ExamsStateID == examsStateID);
            }
            if (recordStatus.HasValue)
            {
                exp = exp.And(x => x.RecordStatus == recordStatus);
            }
            if (learningformID.HasValue)
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.LearningformID == learningformID);
            if (!string.IsNullOrEmpty(LearnSystem) && LearnSystem != "-1")
            {
                var LearnSystems = Convert.ToDecimal(LearnSystem);
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.LearnSystem == LearnSystems);
            }
            if (education.HasValue)
            {
                exp = exp.And(x => x.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.EducationID == education.Value);
            }
            var query = this.MisconductDAL.GetMisconductViewQueryable(exp);
            if (!string.IsNullOrEmpty(conditions.ConditionValue))
            {
                query = query.DynamicWhere(conditions.Attribute, conditions.Condition, conditions.ConditionValue);
            }
            query = this.GetQueryByDataRangeByCollege(query);

            var result = query.OrderByDescending(x => x.CreateTime).ThenBy(x => x.Year).ThenBy(x => x.StandardID).ToList();

            result.ForEach(x =>
            {
                var currentStatus = statusList.FirstOrDefault(w => w.ID == x.RecordStatus);
                if (currentStatus != null)
                {
                    x.RecordStatusName = currentStatus.Name;
                }
                else
                {
                    x.RecordStatusName = "";
                }
            });

            return result;
        }

        public void Save(ViewModel.ScoreManage.MisconductView misconductView)
        {
            var dupMisconduct = this.MisconductDAL.MisconductRepository
                   .GetSingle(x => x.UserID == misconductView.UserID && x.SchoolyearID == misconductView.SchoolyearID
                       && x.CoursematerialID == misconductView.CoursematerialID && x.ExamsCategoryID == misconductView.ExamsCategoryID);

            ER_Misconduct misconduct = this.MisconductDAL.MisconductRepository
                .GetSingle(x => x.MisconductID == misconductView.MisconductID);
            ER_ExaminationSuspension examinationSuspension = this.ExaminationSuspensionDAL.ExaminationSuspensionRepository
                .GetSingle(x => x.SchoolyearID == misconductView.SchoolyearID
                    &&x.UserID==misconductView.UserID
                    &&x.ExamsCategoryID==misconductView.ExamsCategoryID
                    &&x.CoursematerialID==misconductView.CoursematerialID
                    &&x.RecordStatus==3);
            if (examinationSuspension!=null)
            {
                throw new Exception("该学生有这门考试的缓考申请记录，如需添加违纪请先撤销缓考申请。");
            }
            if (misconduct == null)
            {
                if (dupMisconduct != null)
                {
                    throw new Exception("已经有相同的违纪名单，请勿重复申请。");
                }

                misconduct = new ER_Misconduct();
                misconduct.MisconductID = Guid.NewGuid();
                this.SetNewStatus(misconduct);
                misconduct.RecordStatus = this.GetStartStatus();
                this.UnitOfWork.Add(misconduct);
            }
            else
            {
                if (dupMisconduct != null && dupMisconduct.MisconductID != misconduct.MisconductID)
                {
                    throw new Exception("已经有相同的违纪名单，请勿重复申请。");
                }
                this.SetModifyStatus(misconduct);
            }

            misconduct.UserID = misconductView.UserID;
            misconduct.SchoolyearID = misconductView.SchoolyearID;
            misconduct.CoursematerialID = misconductView.CoursematerialID;
            misconduct.ExamsCategoryID = misconductView.ExamsCategoryID;
            misconduct.ExamsStateID = misconductView.ExamsStateID;
            misconduct.Reason = misconductView.Reason;

            this.UnitOfWork.Commit();
        }

        public void Delete(IList<Guid> misconductIDList)
        {
            this.UnitOfWork.Remove<ER_Misconduct>(x => misconductIDList.Contains(x.MisconductID));
            this.UnitOfWork.Commit();
        }

        public List<Sys_DictionaryItem> GetMisconductExamsStateList()
        {
            var misconductIDList = this.ExamsStateSettingDAL.GetMisconductIDList().ToList();

            return DictionaryHelper.GetDictionaryValue(DictionaryItem.CF_ExamsState).Where(x => misconductIDList.Contains(x.Value)).ToList();
        }


        public ViewModel.ScoreManage.MisconductView GetMisconductView(Guid misconductID)
        {
            var statusList = this.GetStatusViewList();
            var misconductView = this.MisconductDAL.GetMisconductViewQueryable(x => x.MisconductID == misconductID)
                                               .FirstOrDefault();

            if (misconductView != null)
            {
                var recordStatus = statusList.FirstOrDefault(x => x.ID == misconductView.RecordStatus);
                if (recordStatus != null)
                {
                    misconductView.RecordStatusName = recordStatus.Name;
                }
            }

            return misconductView;
        }

        public IGridResultSet<CoursematerialView> GetMisconductCoursematerialGridView(
            ConfiguretView conditions, Guid? schoolyearID, Guid? userID, int? pageIndex = null, int? pageSize = null)
        {
            Expression<Func<EMIS.Entities.CF_Schoolyear, bool>> schoolyearExp = (x => x.SchoolyearID == schoolyearID);
            Expression<Func<EMIS.Entities.CF_Student, bool>> studentExp = (x => x.UserID == userID);

            var query = this.MisconductDAL.GetMisconductCoursematerialViewQueryable(schoolyearExp, studentExp);
            if (!string.IsNullOrEmpty(conditions.ConditionValue))
            {
                query = query.DynamicWhere(conditions.Attribute, conditions.Condition, conditions.ConditionValue);
            }

            var result = query.OrderBy(x => x.CourseCode.Length).ThenBy(x => x.CourseCode).ThenBy(x => x.CourseName).ToGridResultSet(pageIndex, pageSize);

            return result;
        }

        public void OnApproveEnd(IList<Guid> misconductIDList, Guid? userID)
        {
            ScoreServices.Value.RefreshMisconductState(misconductIDList);
        }

        public void OnApproveEnds(IList<Guid> misconductIDList, Guid? userID)
        {
            ScoreServices.Value.RefreshCancelMisconductState(misconductIDList);
        }
        public List<ViewModel.ScoreManage.MisconductView> GetMisconductViewListByFinalExamination(Guid? finalExaminationID)
        {
            var endStatus = this.GetCorrectEndStatus();
            var finalExaminationView = FinalExaminationDAL.GetFinalExaminationViewQueryable(x => x.FinalExaminationID == finalExaminationID).FirstOrDefault();
            if (finalExaminationView == null)
            {
                return new List<ViewModel.ScoreManage.MisconductView>();
            }
            Expression<Func<ER_Misconduct, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE
                && x.SchoolyearID == finalExaminationView.SchoolyearID && x.CoursematerialID == finalExaminationView.CoursematerialID
                && x.ExamsCategoryID == finalExaminationView.ExamsCategoryID && x.RecordStatus == 3);
            var statusList = this.GetStatusViewList();

            var query = this.MisconductDAL.GetMisconductViewQueryable(exp);

            var result = query.OrderByDescending(x => x.CreateTime).ThenBy(x => x.Year).ThenBy(x => x.StandardID).ToList();

            result.ForEach(x =>
            {
                var currentStatus = statusList.FirstOrDefault(w => w.ID == x.RecordStatus);
                if (currentStatus != null)
                {
                    x.RecordStatusName = currentStatus.Name;
                }
                else
                {
                    x.RecordStatusName = "";
                }
            });

            return result;
        }

        public void Cancel(List<Guid> misconductIDList, Guid userID, string comment)
        {
            var endStatusID = GetEndStatusID();
            var misconductList = MisconductDAL.MisconductRepository.GetList(x => misconductIDList.Contains(x.MisconductID)).ToList();

            if (misconductList.Any(x => x.RecordStatus != endStatusID))
            {
                throw new Exception("只能撤回已通过状态的记录。");
            }

            var actionViewList = this.GetActionView(misconductIDList[0], userID);
            var actionView = actionViewList.FirstOrDefault();

            this.Approve(misconductIDList, userID, actionView.ActionID, comment);
        }

        public int? GetEndStatusID()
        {
            var endStatus = this.GetStatusViewList().FirstOrDefault(x => x.Description.Contains("[End]"));
            if (endStatus != null)
            {
                return endStatus.ID;
            }
            else
            {
                return null;
            }
        }
    }
}