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

namespace EMIS.CommonLogic.ScoreManage
{
    public partial class ScoreConvertByReplaceServices : BaseWorkflowServices<ER_ScoreConvertByReplace>, IScoreConvertByReplaceServices
    {
        public StudentScoreDAL StudentScoreDAL { get; set; }
        public ScoreConvertByReplaceDAL ScoreConvertByReplaceDAL { get; set; }
        public ExecutablePlanDAL ExecutablePlanDAL { get; set; }

        public Lazy<ISchoolYearServices> SchoolYearServices { get; set; }
        public Lazy<IParameterServices> ParameterServices { get; set; }
        public Lazy<IStudentScoreServices> StudentScoreServices { get; set; }

        public IGridResultSet<ScoreConvertByReplaceView> GetScoreConvertByReplaceViewGrid(ConfiguretView conditionView, Guid? schoolyearID, Guid? collegeID, 
            int? yearID, int? standardID, Guid? classmajorID, Guid? targetCoursematerialID, int? recordStatus, int? pageIndex, int? pageSize)
        {
            var statusViewList = this.GetStatusViewList();
            Expression<Func<ER_ScoreConvertByReplace, bool>> exp = (x => true);
            Expression<Func<CF_Facultymajor, bool>> facultyExp = (x => true);
            Expression<Func<CF_Grademajor, bool>> gradeExp = (x => true);
            Expression<Func<CF_Classmajor, bool>> classExp = (x => true);

            if (schoolyearID.HasValue)
            {
                exp = exp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue)
            {
                facultyExp = facultyExp.And(x => x.CollegeID == collegeID);
            }
            if (yearID.HasValue)
            {
                gradeExp = gradeExp.And(x => x.GradeID == yearID);
            }
            if (standardID.HasValue)
            {
                facultyExp = facultyExp.And(x => x.StandardID == standardID);
            }
            if (classmajorID.HasValue)
            {
                classExp = classExp.And(x => x.ClassmajorID == classmajorID.Value);
            }
            if (targetCoursematerialID.HasValue)
            {
                exp = exp.And(x => x.TargetCoursematerialID == targetCoursematerialID);
            }
            if (recordStatus.HasValue)
            {
                exp = exp.And(x => x.RecordStatus == recordStatus);
            }

            var query = ScoreConvertByReplaceDAL.GetScoreConvertByReplaceViewQueryable(exp, facultyExp, gradeExp, classExp);

            if (!string.IsNullOrEmpty(conditionView.ConditionValue))
                query = query.DynamicWhere(conditionView.Attribute, conditionView.Condition, conditionView.ConditionValue.Trim());

            query = this.GetQueryByDataRangeByCollege(query);

            query = query.OrderByDescending(x => x.SchoolyearCode)
                .ThenBy(x => x.CollegeNo.Length).ThenBy(x => x.CollegeNo)
                .ThenBy(x => x.YearID)
                .ThenBy(x => x.StandardID)
                .ThenBy(x => x.ClassmajorNo)
                .ThenBy(x => x.LoginID);

            var result = query.ToGridResultSet(pageIndex, pageSize);

            result.rows.ForEach(x => x.RecordStatusDesc = statusViewList.Where(w => w.ID == x.RecordStatus).Select(w => w.Name).FirstOrDefault());

            return result;
        }

        public List<ScoreConvertByReplaceView> GetScoreConvertByReplaceViewList(ConfiguretView conditionView, Guid? schoolyearID, Guid? collegeID, 
            int? yearID, int? standardID, Guid? classmajorID, Guid? targetCoursematerialID, int? recordStatus)
        {
            var statusViewList = this.GetStatusViewList();
            Expression<Func<ER_ScoreConvertByReplace, bool>> exp = (x => true);
            Expression<Func<CF_Facultymajor, bool>> facultyExp = (x => true);
            Expression<Func<CF_Grademajor, bool>> gradeExp = (x => true);
            Expression<Func<CF_Classmajor, bool>> classExp = (x => true);

            if (schoolyearID.HasValue)
            {
                exp = exp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue)
            {
                facultyExp = facultyExp.And(x => x.CollegeID == collegeID);
            }
            if (yearID.HasValue)
            {
                gradeExp = gradeExp.And(x => x.GradeID == yearID);
            }
            if (standardID.HasValue)
            {
                facultyExp = facultyExp.And(x => x.StandardID == standardID);
            }
            if (classmajorID.HasValue)
            {
                classExp = classExp.And(x => x.ClassmajorID == classmajorID.Value);
            }
            if (targetCoursematerialID.HasValue)
            {
                exp = exp.And(x => x.TargetCoursematerialID == targetCoursematerialID);
            }
            if (recordStatus.HasValue)
            {
                exp = exp.And(x => x.RecordStatus == recordStatus);
            }

            var query = ScoreConvertByReplaceDAL.GetScoreConvertByReplaceViewQueryable(exp, facultyExp, gradeExp, classExp);

            if (!string.IsNullOrEmpty(conditionView.ConditionValue))
                query = query.DynamicWhere(conditionView.Attribute, conditionView.Condition, conditionView.ConditionValue.Trim());

            query = this.GetQueryByDataRangeByCollege(query);

            query = query.OrderByDescending(x => x.SchoolyearCode)
                .ThenBy(x => x.CollegeNo.Length).ThenBy(x => x.CollegeNo)
                .ThenBy(x => x.YearID)
                .ThenBy(x => x.StandardID)
                .ThenBy(x => x.ClassmajorNo)
                .ThenBy(x => x.LoginID);
            
            var result = query.ToList();
            result.ForEach(x => x.RecordStatusDesc = statusViewList.Where(w => w.ID == x.RecordStatus).Select(w => w.Name).FirstOrDefault());

            return result;
        }

        public ScoreConvertByReplaceView GetScoreConvertByReplaceView(Guid? scoreConvertByReplaceID)
        {
            var statusViewList = this.GetStatusViewList();
            var scoreConvertByReplaceView = this.ScoreConvertByReplaceDAL.GetScoreConvertByReplaceViewQueryable(x => x.ScoreConvertByReplaceID == scoreConvertByReplaceID,
                (x => true), (x => true), (x => true)).FirstOrDefault();
            
            if (scoreConvertByReplaceView != null)
            {
                scoreConvertByReplaceView.RecordStatusDesc = statusViewList.Where(x => x.ID == scoreConvertByReplaceView.RecordStatus).Select(x => x.Name).FirstOrDefault();
            }

            return scoreConvertByReplaceView;
        }

        public void Save(ScoreConvertByReplaceView scoreConvertByReplaceView)
        {
            try
            {
                var schoolyear = SchoolYearServices.Value.GetCurrentSchoolYear();
                ER_ScoreConvertByReplace dupScoreConvert = ScoreConvertByReplaceDAL.ScoreConvertByReplaceRepository.Entities.Where(x =>
                    x.SourceCoursematerialID == scoreConvertByReplaceView.SourceCoursematerialID 
                    && x.UserID == scoreConvertByReplaceView.UserID
                    && x.ScoreConvertByReplaceID != scoreConvertByReplaceView.ScoreConvertByReplaceID).FirstOrDefault();

                if (dupScoreConvert != null)
                {
                    throw new Exception("该课程已经申请过认定，不能重复申请。");
                }

                ER_ScoreConvertByReplace scoreConvert = null;
                if (scoreConvertByReplaceView.ScoreConvertByReplaceID == null || scoreConvertByReplaceView.ScoreConvertByReplaceID == Guid.Empty)
                {
                    scoreConvert = new ER_ScoreConvertByReplace();
                    scoreConvert.ScoreConvertByReplaceID = Guid.NewGuid();
                    SetNewStatus(scoreConvert);
                    UnitOfWork.Add(scoreConvert);
                }
                else
                {
                    scoreConvert = this.ScoreConvertByReplaceDAL.ScoreConvertByReplaceRepository
                        .GetSingle(x => x.ScoreConvertByReplaceID == scoreConvertByReplaceView.ScoreConvertByReplaceID);
                    if (scoreConvert == null)
                    {
                        throw new Exception("当前编辑的认定记录可能已被其他人删除。");
                    }
                    SetModifyStatus(scoreConvert);
                }
                scoreConvert.SchoolyearID = schoolyear.SchoolYearID;
                scoreConvert.UserID = scoreConvertByReplaceView.UserID;
                scoreConvert.SourceCoursematerialID = scoreConvertByReplaceView.SourceCoursematerialID;
                scoreConvert.TotalScore = scoreConvertByReplaceView.TotalScore;
                scoreConvert.TargetCoursematerialID = scoreConvertByReplaceView.TargetCoursematerialID;
                scoreConvert.Reason = scoreConvertByReplaceView.Reason;

                UnitOfWork.Commit();
            }
            catch (Exception)
            {
                throw;
            }
        }

        public void Delete(IList<Guid?> scoreConvertByReplaceIDList)
        {
            if (scoreConvertByReplaceIDList.Count > 0)
            {
                var canDeleteStatus = new List<int?>();
                
                canDeleteStatus.Add(this.GetStartStatus());
                canDeleteStatus.AddRange(this.GetBackpointStatus());
                var canDeleteStatusDesc = this.GetStatusViewList().Where(x => canDeleteStatus.Contains(x.ID)).Select(x => x.Name);

                var scoreConvertByReplaceList = ScoreConvertByReplaceDAL.ScoreConvertByReplaceRepository.GetList(x => scoreConvertByReplaceIDList.Contains(x.ScoreConvertByReplaceID)).ToList();

                if (scoreConvertByReplaceList.Any(x => !canDeleteStatus.Contains(x.RecordStatus)))
                {
                    throw new Exception("只能删除状态为" + string.Join("、", canDeleteStatusDesc) + "的记录。");
                }

                UnitOfWork.Delete<ER_ScoreConvertByReplace>(x => scoreConvertByReplaceIDList.Contains(x.ScoreConvertByReplaceID));
            }
        }

        public void OnApproveEnd(List<Guid> scoreConvertByReplaceIDList, Guid? userID)
        {
            int? retakeExamsCategoryID = ParameterServices.Value.GetParameterValue<int>(CF_ParameterType.RetakeExamsCatagoryID);
            var scoreConvertByReplaceList = this.ScoreConvertByReplaceDAL.ScoreConvertByReplaceRepository
                .GetList(x => scoreConvertByReplaceIDList.Contains(x.ScoreConvertByReplaceID)).ToList();
            var selectKeyList = scoreConvertByReplaceList.Select(x => new { x.UserID, CoursematerialID = x.SourceCoursematerialID }).ToList();
            var targetSelectKeyList = scoreConvertByReplaceList.Select(x => new { x.UserID, CoursematerialID = x.TargetCoursematerialID }).ToList();
            var submitedScoreList = StudentScoreDAL.submitedScoreRepository.Entities.SelectByKeys(selectKeyList);
            var submitedScoreIDList = submitedScoreList.Select(x => (Guid?)x.SubmitedScoreID);
            var submitedScoreDetailList = StudentScoreDAL.SubmitedScoreDetailRepository.GetList(x => submitedScoreIDList.Contains(x.SubmitedScoreID)).ToList();
            var finallyScoreList = StudentScoreDAL.FinallyScoreRepository.Entities.SelectByKeys(selectKeyList);
            var finallyScoreIDList = finallyScoreList.Select(x => (Guid?)x.FinallyScoreID);
            var finallyScoreDetailList = StudentScoreDAL.FinallyScoreDetailRepository.GetList(x => finallyScoreIDList.Contains(x.FinallyScoreID)).ToList();
            //这个方法比较可疑，不知道技术上能否实现（主要是EF产生的语句有自动命名的问题，端点调）
            var lastCourseStarttermViewList = ExecutablePlanDAL.GetLastCourseStarttermViewQueryable().SelectByKeys(targetSelectKeyList);

            var insertSubmitedScoreBackupList = new List<ER_ScoreConvertedSubmitedScore>();
            var insertSubmitedScoreDetailBackupList = new List<ER_ScoreConvertedSubmitedScoreDetail>();
            var insertSubmitedScoreList = new List<ER_SubmitedScore>();
            var insertSubmitedScoreDetailList = new List<ER_SubmitedScoreDetail>();

            foreach (var submitedScore in submitedScoreList)
            {
                var scoreConvertByReplace = scoreConvertByReplaceList.FirstOrDefault(x => x.UserID == submitedScore.UserID && x.SourceCoursematerialID == submitedScore.CoursematerialID);
                #region 备份已提交成绩主表
                var scoreConvertedSubmitedScore = new ER_ScoreConvertedSubmitedScore
                    {
                        ScoreConvertedSubmitedScoreID = Guid.NewGuid(),
                        ScoreConvertByReplaceID = scoreConvertByReplace.ScoreConvertByReplaceID,
                        SchoolyearID = submitedScore.SchoolyearID,
                        SchoolyearNumID = submitedScore.SchoolyearNumID,
                        FinalExaminationID = submitedScore.FinalExaminationID,
                        DepartmentID = submitedScore.DepartmentID,
                        ClassName = submitedScore.ClassName,
                        CoursematerialID = submitedScore.CoursematerialID,
                        CourseTypeID = submitedScore.CourseTypeID,
                        ExamsCategoryID = submitedScore.ExamsCategoryID,
                        ExaminationModeID = submitedScore.ExaminationModeID,
                        HandleModeID = submitedScore.HandleModeID,
                        Credit = submitedScore.Credit,
                        Totalhours = submitedScore.TotalHours,
                        ExamsDatetime = submitedScore.ExamsDatetime,
                        ResultTypeID = submitedScore.ResultTypeID,
                        CreatorUserID = submitedScore.CreatorUserID,
                        EntryDeadlineTime = submitedScore.EntryDeadlineTime,
                        IsEntry = submitedScore.IsEntry,
                        ExaminationType = submitedScore.ExaminationType,
                        StarttermID = submitedScore.StarttermID,
                        UserID = submitedScore.UserID,
                        ExamsStateID = submitedScore.ExamsStateID,
                        TotalScore = submitedScore.TotalScore,
                        ScoreCredit = submitedScore.ScoreCredit,
                        GradePoint = submitedScore.GradePoint,
                        Remark = submitedScore.Remark,
                        RecordStatus = submitedScore.RecordStatus,
                        CreateTime = submitedScore.CreateTime,
                        CreateUserID = submitedScore.CreateUserID,
                        ModifyUserID = submitedScore.ModifyUserID,
                        ModifyTime = submitedScore.ModifyTime
                    };
                insertSubmitedScoreBackupList.Add(scoreConvertedSubmitedScore);
                #endregion

                #region 备份已提交成绩明细
                var curSubmitedScoreDetailList = submitedScoreDetailList.Where(x => x.SubmitedScoreID == submitedScore.SubmitedScoreID).ToList();

                foreach (var detail in curSubmitedScoreDetailList)
                {
                    insertSubmitedScoreDetailBackupList.Add(new ER_ScoreConvertedSubmitedScoreDetail 
                    {
                        ScoreConvertedSubmitedScoreDetailID = Guid.NewGuid(),
                        ScoreConvertedSubmitedScoreID = scoreConvertedSubmitedScore.ScoreConvertedSubmitedScoreID,
                        ScoreTypeID = detail.ScoreTypeID,
                        Score = detail.Score,
                        RecordStatus = detail.RecordStatus,
                        CreateTime = detail.CreateTime,
                        CreateUserID = detail.CreateUserID,
                        ModifyUserID = detail.ModifyUserID,
                        ModifyTime = detail.ModifyTime
                    });
                }
                #endregion
            }

            foreach (var finallyScore in finallyScoreList)
            {
                var scoreConvertByReplace = scoreConvertByReplaceList.FirstOrDefault(x => x.UserID == finallyScore.UserID && x.SourceCoursematerialID == finallyScore.CoursematerialID);
                var lastCourseStarttermView = lastCourseStarttermViewList.FirstOrDefault(x => x.UserID == finallyScore.UserID && x.CoursematerialID == scoreConvertByReplace.TargetCoursematerialID);

                #region 添加新的已提交成绩
                var insertSubmitedScore = new ER_SubmitedScore
                    {
                        SubmitedScoreID = Guid.NewGuid(),
                        SchoolyearID = finallyScore.SchoolyearID,
                        SchoolyearNumID = lastCourseStarttermView.SchoolyearNumID,
                        DepartmentID = lastCourseStarttermView.DepartmentID,
                        ClassName = lastCourseStarttermView.ClassName,
                        CoursematerialID = lastCourseStarttermView.CoursematerialID,
                        CourseTypeID = lastCourseStarttermView.CourseTypeID,
                        ExamsCategoryID = (int)EMIS.ViewModel.CF_ExamsCategory.FinalExam,
                        ExaminationModeID = lastCourseStarttermView.ExaminationModeID,
                        HandleModeID = lastCourseStarttermView.HandleModeID,
                        Credit = lastCourseStarttermView.Credit,
                        TotalHours = lastCourseStarttermView.TotalHours,
                        ResultTypeID = lastCourseStarttermView.ResultTypeID,
                        CreatorUserID = userID,
                        IsEntry = true,
                        ExaminationType = (int)EMIS.ViewModel.CF_ExaminationType.FinalExamination,
                        StarttermID = lastCourseStarttermView.StarttermID,
                        UserID = lastCourseStarttermView.UserID,
                        ExamsStateID = (int)CF_ExamsState.NormalExams,
                        TotalScore = finallyScore.TotalScore,
                        ScoreCredit = finallyScore.ScoreCredit > 0 ? lastCourseStarttermView.Credit : 0,
                        GradePoint = finallyScore.GradePoint,
                        Remark = Const.ER_SCORECONVERT_BYREPLACE_SCOREREMARK,
                        RecordStatus = (int)SYS_STATUS.USABLE,
                        CreateUserID = userID,
                        CreateTime = DateTime.Now,
                        ModifyUserID = userID,
                        ModifyTime = DateTime.Now
                    };
                #endregion

                #region 添加新的已提交成绩明细
                var curFinallyScoreDetailList = finallyScoreDetailList.Where(x => x.FinallyScoreID == finallyScore.FinallyScoreID).ToList();

                foreach (var detail in curFinallyScoreDetailList)
                {
                    insertSubmitedScoreDetailList.Add(new ER_SubmitedScoreDetail
                    {
                        SubmitedScoreDetailID = Guid.NewGuid(),
                        SubmitedScoreID = insertSubmitedScore.SubmitedScoreID,
                        ScoreTypeID = detail.ScoreTypeID,
                        Score = detail.Score,
                        RecordStatus = detail.RecordStatus,
                        CreateTime = detail.CreateTime,
                        CreateUserID = detail.CreateUserID,
                        ModifyUserID = detail.ModifyUserID,
                        ModifyTime = detail.ModifyTime
                    });
                }
                #endregion
                insertSubmitedScoreList.Add(insertSubmitedScore);
            }

            var insertSubmitedScoreIDList = insertSubmitedScoreList.Select(x => x.SubmitedScoreID).ToList();

            using (var scope = new TransactionScope(TransactionScopeOption.Required))
            {
                UnitOfWork.BulkInsert(insertSubmitedScoreBackupList);
                UnitOfWork.BulkInsert(insertSubmitedScoreDetailBackupList);
                UnitOfWork.Delete<ER_SubmitedScoreDetail>(x => submitedScoreIDList.Contains(x.SubmitedScoreID));
                UnitOfWork.Delete<ER_SubmitedScore>(x => submitedScoreIDList.Contains(x.SubmitedScoreID));
                UnitOfWork.Delete<ER_FinallyScoreDetail>(x => finallyScoreIDList.Contains(x.FinallyScoreID));
                UnitOfWork.Delete<ER_FinallyScore>(x => finallyScoreIDList.Contains(x.FinallyScoreID));
                UnitOfWork.BulkInsert(insertSubmitedScoreList);
                UnitOfWork.BulkInsert(insertSubmitedScoreDetailList);

                StudentScoreServices.Value.RefreshFinallyScoreBySubmitedScoreID(insertSubmitedScoreIDList);

                scope.Complete();
            }
        }
    }
}