using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Bowin.Common.Linq;
using Bowin.Common.Linq.Entity;
using EMIS.ViewModel.PaymentManage;
using EMIS.ViewModel;
using EMIS.Entities;
using EMIS.DataLogic.PaymentManage;
using System.Linq.Expressions;
using EMIS.ViewModel.EducationManage;
using EMIS.DataLogic.Common.CalendarManage;
using EMIS.DataLogic.EducationSchedule;
using EMIS.CommonLogic.EducationSchedule;

namespace EMIS.CommonLogic.PaymentManage
{
    public class WorktimeAdjustmentServices : BaseServices, IWorktimeAdjustmentServices
    {
        public WorktimeAdjustmentDAL WorktimeAdjustmentDAL { get; set; }
        public SchoolYearDAL SchoolYearDAL { get; set; }
        public ActivitieDAL ActivitieDAL { get; set; }

        public Lazy<IEducationSchedulingStopServices> EducationSchedulingStopServices { get; set; }
        public IEducationSchedulingAdjustmentServices EducationSchedulingAdjustmentServices { get; set; }

        public IGridResultSet<WorktimeAdjustmentView> GetWorktimeAdjustmentViewList(ConfiguretView worktimeAdjustmentConditionView,
            Guid? schoolyearID, Guid? coursematerialID, Guid? teacherUserID, int? worktimeAdjustmentTypeID, int? pageIndex, int? pageSize)
        {
            Expression<Func<TP_WorktimeAdjustment, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            Expression<Func<EM_Coursematerial, bool>> courseExp = (x => true);
            Expression<Func<EMIS.Entities.CF_Schoolyear, bool>> schoolyearExp = (x => true);

            if (schoolyearID.HasValue)
            {
                schoolyearExp = schoolyearExp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (coursematerialID.HasValue)
            {
                courseExp = courseExp.And(x => x.CoursematerialID == coursematerialID);
            }
            if (teacherUserID.HasValue)
            {
                exp = exp.And(x => x.UserID == teacherUserID);
            }
            if (worktimeAdjustmentTypeID.HasValue)
            {
                exp = exp.And(x => x.WorktimeAdjustmentTypeID == worktimeAdjustmentTypeID);
            }

            var query = WorktimeAdjustmentDAL.GetWorktimeAdjustmentViewQueryable(exp, courseExp, schoolyearExp);

            if (!string.IsNullOrEmpty(worktimeAdjustmentConditionView.ConditionValue) && !string.IsNullOrEmpty(worktimeAdjustmentConditionView.Attribute))
                query = query.DynamicWhere(worktimeAdjustmentConditionView.Attribute, worktimeAdjustmentConditionView.Condition, worktimeAdjustmentConditionView.ConditionValue);

            query = query.OrderByDescending(x => x.SchoolyearCode)
                .ThenBy(x => x.WorktimeAdjustmentID)
                .ThenBy(x => x.TeacherName)
                .ThenBy(x => x.CourseCode);

            return query.ToGridResultSet(pageIndex, pageSize);
        }

        public List<WorktimeAdjustmentView> GetWorktimeAdjustmentViewList(ConfiguretView worktimeAdjustmentConditionView,
            Guid? schoolyearID, Guid? coursematerialID, Guid? teacherUserID, int? worktimeAdjustmentTypeID)
        {
            Expression<Func<TP_WorktimeAdjustment, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            Expression<Func<EM_Coursematerial, bool>> courseExp = (x => true);
            Expression<Func<EMIS.Entities.CF_Schoolyear, bool>> schoolyearExp = (x => true);

            if (schoolyearID.HasValue)
            {
                schoolyearExp = schoolyearExp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (coursematerialID.HasValue)
            {
                courseExp = courseExp.And(x => x.CoursematerialID == coursematerialID);
            }
            if (teacherUserID.HasValue)
            {
                exp = exp.And(x => x.UserID == teacherUserID);
            }
            if (worktimeAdjustmentTypeID.HasValue)
            {
                exp = exp.And(x => x.WorktimeAdjustmentTypeID == worktimeAdjustmentTypeID);
            }

            var query = WorktimeAdjustmentDAL.GetWorktimeAdjustmentViewQueryable(exp, courseExp, schoolyearExp);

            if (!string.IsNullOrEmpty(worktimeAdjustmentConditionView.ConditionValue) && !string.IsNullOrEmpty(worktimeAdjustmentConditionView.Attribute))
                query = query.DynamicWhere(worktimeAdjustmentConditionView.Attribute, worktimeAdjustmentConditionView.Condition, worktimeAdjustmentConditionView.ConditionValue);

            query = query.OrderByDescending(x => x.SchoolyearCode)
                .ThenBy(x => x.WorktimeAdjustmentID)
                .ThenBy(x => x.TeacherName)
                .ThenBy(x => x.CourseCode);

            return query.ToList();
        }

        public WorktimeAdjustmentView GetWorktimeAdjustmentView(Guid? worktimeAdjustmentID)
        {
            var query = WorktimeAdjustmentDAL.GetWorktimeAdjustmentViewQueryable(x => x.WorktimeAdjustmentID == worktimeAdjustmentID,
                (x => true), (x => true));
            return query.FirstOrDefault();
        }

        public void Save(WorktimeAdjustmentView worktimeAdjustmentView)
        {
            TP_WorktimeAdjustment worktimeAdjustment = new TP_WorktimeAdjustment();

            if (worktimeAdjustmentView.WorktimeAdjustmentID == null || worktimeAdjustmentView.WorktimeAdjustmentID == Guid.Empty)
            {
                worktimeAdjustment = new TP_WorktimeAdjustment();
                worktimeAdjustment.WorktimeAdjustmentID = Guid.NewGuid();
                SetNewStatus(worktimeAdjustment);
                UnitOfWork.Add(worktimeAdjustment);
            }
            else
            {
                worktimeAdjustment = WorktimeAdjustmentDAL.WorktimeAdjustmentRepository.GetSingle(x =>
                    x.WorktimeAdjustmentID == worktimeAdjustmentView.WorktimeAdjustmentID);
                if (worktimeAdjustment == null)
                {
                    throw new Exception("未能找到需要修改的数据，数据可能已被其他用户更改。");
                }
                SetModifyStatus(worktimeAdjustment);
            }
            worktimeAdjustment.EducationMissionClassID = worktimeAdjustmentView.EducationMissionClassID;
            worktimeAdjustment.AdjustDate = worktimeAdjustmentView.AdjustDate;
            worktimeAdjustment.UserID = worktimeAdjustmentView.UserID;
            worktimeAdjustment.WorktimeAdjustmentTypeID = worktimeAdjustmentView.WorktimeAdjustmentTypeID;
            worktimeAdjustment.Worktime = worktimeAdjustmentView.Worktime;
            UnitOfWork.Commit();
        }

        public void Delete(IList<Guid?> worktimeAdjustmentIDList)
        {
            if (worktimeAdjustmentIDList.Count > 0)
            {
                UnitOfWork.Delete<TP_WorktimeAdjustment>(x => worktimeAdjustmentIDList.Contains(x.WorktimeAdjustmentID));
            }
        }

        public IGridResultSet<EducationMissionClassComboView> GetEducationMissionClassList(ConfiguretView missionClassConditionView,
            Guid? schoolyearID, Guid? userID, DateTime? adjustDate, Guid? collegeID, int? gradeYearID, int? standardID, Guid? coursematerialID,
            int? pageIndex, int? pageSize)
        {
            Expression<Func<EM_EducationMissionClass, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            Expression<Func<ES_EducationSchedulingTeacher, bool>> teacherExp = (x => true);
            Expression<Func<ES_EducationScheduling, bool>> scheduleExp = (x => true);

            if (schoolyearID.HasValue)
            {
                scheduleExp = scheduleExp.And(x => x.SchoolyearID == schoolyearID);
            }
            if (userID.HasValue)
            {
                teacherExp = teacherExp.And(x => x.UserID == userID);
            }
            if (adjustDate.HasValue)
            {
                if (schoolyearID.HasValue)
                {
                    var schoolyear = SchoolYearDAL.GetSchoolYearQueryable(x => x.SchoolyearID == schoolyearID).First();
                    var adjustWeekNum = Convert.ToInt32(Math.Ceiling(adjustDate.Value.Subtract(schoolyear.FirstWeek.Value).TotalDays / 7));
                    var adjustWeekday = (int)adjustDate.Value.DayOfWeek;
                    scheduleExp = scheduleExp.And(x => x.Weekday == adjustWeekday && x.ES_EducationSchedulingWeekNum.Any(w => w.WeekNum == adjustWeekNum));
                }
                else
                {
                    scheduleExp = scheduleExp.And(x => false);
                }
            }
            if (collegeID.HasValue)
            {
                exp = exp.And(x => x.CF_Classmajor.Any(w => w.CF_Grademajor.CF_Facultymajor.CollegeID == collegeID));
            }
            if (gradeYearID.HasValue)
            {
                exp = exp.And(x => x.CF_Classmajor.Any(w => w.CF_Grademajor.GradeID == gradeYearID));
            }
            if (standardID.HasValue)
            {
                exp = exp.And(x => x.CF_Classmajor.Any(w => w.CF_Grademajor.CF_Facultymajor.StandardID == standardID));
            }
            if (coursematerialID.HasValue)
            {
                exp = exp.And(x => x.CoursematerialID == coursematerialID);
            }

            var query = WorktimeAdjustmentDAL.GetEducationMissionClassViewQueryable(exp, teacherExp, scheduleExp);

            if (!string.IsNullOrEmpty(missionClassConditionView.ConditionValue) && !string.IsNullOrEmpty(missionClassConditionView.Attribute))
                query = query.DynamicWhere(missionClassConditionView.Attribute, missionClassConditionView.Condition, missionClassConditionView.ConditionValue);

            query = query.OrderBy(x => x.Name);

            return query.ToGridResultSet(pageIndex, pageSize);
        }

        public void GenerateChargeAgainst(Guid schoolyearID)
        {
            var activitieList = ActivitieDAL.GetActivitiesQueryable(x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE).ToList();
            var schoolyear = SchoolYearDAL.GetSchoolYearQueryable(x => x.SchoolyearID == schoolyearID).First();
            var schoolyearEndDate = schoolyear.FirstWeek.Value.AddDays(4 + (((schoolyear.WeeksNum ?? 0) - 1) * 7));

            #region 校历节假日
            var activitieDateList = activitieList.Where(x =>
                (new DateTime(schoolyear.FirstWeek.Value.Year, x.ActivitiesTimeMonth.Value, x.ActivitiesTimeDay.Value) >= schoolyear.FirstWeek.Value
                && new DateTime(schoolyear.FirstWeek.Value.Year, x.ActivitiesTimeMonth.Value, x.ActivitiesTimeDay.Value) <= schoolyearEndDate))
                .Select(x => new DateTime(schoolyear.FirstWeek.Value.Year, x.ActivitiesTimeMonth.Value, x.ActivitiesTimeDay.Value))
                .Concat(activitieList.Where(x =>
                (new DateTime(schoolyearEndDate.Year, x.ActivitiesTimeMonth.Value, x.ActivitiesTimeDay.Value) >= schoolyear.FirstWeek.Value
                && new DateTime(schoolyearEndDate.Year, x.ActivitiesTimeMonth.Value, x.ActivitiesTimeDay.Value) <= schoolyearEndDate))
                .Select(x => new DateTime(schoolyearEndDate.Year, x.ActivitiesTimeMonth.Value, x.ActivitiesTimeDay.Value))).Distinct().ToList();

            var weekdayList = activitieDateList.Select(x =>
                new
                {
                    AdjustDate = x,
                    Weekday = (int)x.DayOfWeek,
                    WeekNum = Convert.ToInt32(Math.Ceiling(x.Subtract(schoolyear.FirstWeek.Value).TotalDays / 7))
                }).ToList();

            var scheduleQuery = WorktimeAdjustmentDAL.GetWorktimeSchedulingViewQueryable(x => x.SchoolyearID == schoolyearID);
            var weekdayAndNumList = weekdayList.Select(x => new { x.Weekday, x.WeekNum }).ToList();
            var weekdayAndNumScheduleList = scheduleQuery.SelectByKeys(weekdayAndNumList);
            #endregion

            #region 停课记录
            var schedulingStopEndStatus = EducationSchedulingStopServices.Value.GetCorrectEndStatus();
            var schedulingStop = WorktimeAdjustmentDAL.GetWorktimeSchedulingViewByStopQueryable(
                x => x.RecordStatus == schedulingStopEndStatus,
                x => x.SchoolyearID == schoolyearID).ToList();
            #endregion
            #region 调课补课记录
            var schedulingAdjustmentEndStatus = EducationSchedulingAdjustmentServices.GetCorrectEndStatus();
            var schedulingAdjustment = WorktimeAdjustmentDAL.GetWorktimeSchedulingViewByAdjustmentQueryable(
                x => x.RecordStatus == schedulingStopEndStatus,
                x => x.SchoolyearID == schoolyearID).ToList();
            #endregion
            var scheduleList = weekdayAndNumScheduleList
                                .Join(weekdayList, (x => new { Weekday = x.Weekday ?? 0, WeekNum = x.WeekNum ?? 0 }), (x => new { x.Weekday, x.WeekNum }),
                                ((x, y) => new
                                {
                                    x.EducationMissionClassID,
                                    y.AdjustDate,
                                    x.UserID,
                                    x.Worktime
                                })).Concat(
                                schedulingStop.Select(x => new
                                {
                                    x.EducationMissionClassID,
                                    AdjustDate = schoolyear.FirstWeek.Value.AddDays((double)((x.WeekNum - 1) * 7 + (x.Weekday == 0 ? 7 : x.Weekday) - 1)),
                                    x.UserID,
                                    x.Worktime
                                })
                                );
            var achedulingAdjustmentList = schedulingAdjustment.Select(x => new
            {
                x.EducationMissionClassID,
                AdjustDate = schoolyear.FirstWeek.Value.AddDays((double)((x.WeekNum - 1) * 7 + (x.Weekday == 0 ? 7 : x.Weekday) - 1)),
                x.UserID,
                x.Worktime
            });
            var existsAdjustmentList = WorktimeAdjustmentDAL.WorktimeAdjustmentRepository.Entities.SelectByKeys(
                scheduleList.Select(x => new { x.EducationMissionClassID, x.AdjustDate, x.UserID }).ToList()
                );
            var deleteAdjustmentList = WorktimeAdjustmentDAL.WorktimeAdjustmentRepository.Entities.SelectByKeys(
                achedulingAdjustmentList.Select(x => new { x.EducationMissionClassID, x.AdjustDate, x.UserID }).ToList()
                );
            var delID = deleteAdjustmentList.Select(x => x.WorktimeAdjustmentID).ToList();
            var adjustmenntList = WorktimeAdjustmentDAL.WorktimeAdjustmentRepository.Entities.ToList();
            var insertList = new List<TP_WorktimeAdjustment>();
            var updateList = new List<TP_WorktimeAdjustment>();
            foreach (var schedule in scheduleList)
            {
                if (!existsAdjustmentList.Any(x => x.EducationMissionClassID == schedule.EducationMissionClassID
                    && x.UserID == schedule.UserID && x.AdjustDate == schedule.AdjustDate
                    && x.WorktimeAdjustmentTypeID == (int)TP_WorktimeAdjustmentType.ChargeAgainst))
                {
                    var adjustment = new TP_WorktimeAdjustment
                    {
                        WorktimeAdjustmentID = Guid.NewGuid(),
                        EducationMissionClassID = schedule.EducationMissionClassID,
                        AdjustDate = schedule.AdjustDate,
                        UserID = schedule.UserID,
                        WorktimeAdjustmentTypeID = (int)TP_WorktimeAdjustmentType.ChargeAgainst,
                        Worktime = schedule.Worktime
                    };
                    this.SetNewStatus(adjustment);
                    insertList.Add(adjustment);
                }
                //else if (existsAdjustmentList.Any(x => x.EducationMissionClassID == schedule.EducationMissionClassID
                //   && x.UserID == schedule.UserID && x.AdjustDate == schedule.AdjustDate
                //   && x.WorktimeAdjustmentTypeID == (int)TP_WorktimeAdjustmentType.ChargeAgainst))
                //{
                //    var adjustment = adjustmenntList.Where(x => x.EducationMissionClassID == schedule.EducationMissionClassID && x.UserID == schedule.UserID
                //        && x.AdjustDate == schedule.AdjustDate  && x.WorktimeAdjustmentTypeID == (int)TP_WorktimeAdjustmentType.ChargeAgainst).FirstOrDefault();
                //}
            }
            UnitOfWork.Delete<TP_WorktimeAdjustment>(x => delID.Contains(x.WorktimeAdjustmentID));
            UnitOfWork.BulkInsert(insertList);
        }
    }
}