using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using Bowin.Common.Linq;
using Bowin.Common.Linq.Entity;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.ViewModel.StudentManage.StudentChange;
using EMIS.DataLogic.StudentManage.StudentChange;
using EMIS.CommonLogic.SystemServices;
using EMIS.CommonLogic.StudentManage.StudentStatistics;

namespace EMIS.CommonLogic.StudentManage.StudentChange
{
    public class ChangeApproveServices : BaseWorkflowServices<CF_DifferentDynamic>, IChangeApproveServices
    {
        public Lazy<StudentChangeDAL> StudentChangeDAL { get; set; }
        public Lazy<IInSchoolSettingServices> InSchoolSettingServices { get; set; }

        /// <summary>
        /// 数据范围
        /// </summary>
        public ChangeApproveServices()
        {
            DataRangeUserFunc = ((x, y) => this.IsUserInDataRangeByCollege<CF_DifferentDynamic>(x, y, (w => w.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.CollegeID)));
        }

        /// <summary>
        /// 查询学籍异动审核信息View
        /// </summary>
        /// <param name="configuretView"></param>
        /// <param name="campusID"></param>
        /// <param name="collegeID"></param>
        /// <param name="gradeID"></param>
        /// <param name="standardID"></param>
        /// <param name="educationID"></param>
        /// <param name="learningformID"></param>
        /// <param name="learnSystem"></param>
        /// <param name="classmajorID"></param>
        /// <param name="schoolyearID"></param>
        /// <param name="changeTypeID"></param>
        /// <param name="inSchoolStatus"></param>
        /// <param name="approvalStatus"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        public IGridResultSet<StudentChangeView> GetChangeApproveViewGrid(ConfiguretView configuretView, Guid? campusID, Guid? collegeID, int? gradeID, int? standardID, 
                int? educationID, int? learningformID, string learnSystem, Guid? classmajorID, Guid? schoolyearID, int? changeTypeID, int? inSchoolStatus, int? approvalStatus, int pageIndex, int pageSize)
        {
            var approveStatusList = this.GetApproveStatusViewList();
            var approveStatusIDList = approveStatusList.Select(x => x.ID).ToList();
            Expression<Func<CF_DifferentDynamic, bool>> expStudentChange = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            expStudentChange = expStudentChange.And(x => approveStatusIDList.Contains(x.ApprovalStatus));
            if (schoolyearID.HasValue)
            {
                expStudentChange = expStudentChange.And(x => x.SchoolyearID == schoolyearID);
            }
            if (changeTypeID.HasValue)
            {
                expStudentChange = expStudentChange.And(x => x.ChangeTypeID == changeTypeID);
            }
            if (approvalStatus.HasValue)
            {
                expStudentChange = expStudentChange.And(x => x.ApprovalStatus == approvalStatus);
            }
            Expression<Func<CF_Student, bool>> expStudent = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            if (classmajorID.HasValue)
            {
                expStudent = expStudent.And(x => x.ClassmajorID == classmajorID);
            }
            if (inSchoolStatus != null && inSchoolStatus > -1)
            {
                var inschoolStatusList = InSchoolSettingServices.Value.GetInschoolStatusList(true);
                if (inSchoolStatus == 1)
                {
                    expStudent = expStudent.And(x => inschoolStatusList.Contains(x.InSchoolStatusID));
                }
                if (inSchoolStatus == 0)
                {
                    expStudent = expStudent.And(x => !inschoolStatusList.Contains(x.InSchoolStatusID));
                }
            }
            var query = StudentChangeDAL.Value.GetStudentChangeViewQueryable(expStudentChange, expStudent);
            if (campusID.HasValue)
            {
                query = query.Where(x => x.CampusID == campusID);
            }
            if (collegeID.HasValue)
            {
                query = query.Where(x => x.CollegeID == collegeID);
            }
            if (gradeID.HasValue)
            {
                query = query.Where(x => x.GradeID == gradeID);
            }
            if (standardID.HasValue)
            {
                query = query.Where(x => x.StandardID == standardID);
            }
            if (educationID.HasValue)
            {
                query = query.Where(x => x.EducationID == educationID);
            }
            if (learningformID.HasValue)
            {
                query = query.Where(x => x.LearningformID == learningformID);
            }
            if (!string.IsNullOrEmpty(learnSystem) && learnSystem != "-1")
            {
                var LearnSystems = Convert.ToDecimal(learnSystem);
                query = query.Where(x => x.LearnSystem == LearnSystems);
            }

            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
            {
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue.Trim());
            }
            var result = this.GetQueryByAssistant(query, (x => x.ClassmajorID), this.GetQueryByDataRangeByCollege(query))
                    .OrderBy(x => x.SchoolyearValue).ThenBy(x => x.ChangeTypeID).ThenBy(x => x.GradeID).ThenBy(x => x.StandardID)
                    .ThenBy(x => x.EducationID).ThenBy(x => x.LearningformID).ThenBy(x => x.LearnSystem).ThenBy(x => x.StudentNo)
                    .OrderByDescending(x => x.ChangeDate).ToGridResultSet<StudentChangeView>(pageIndex, pageSize);
            result.rows.ForEach(x => x.ApprovalStatusName = approveStatusList.FirstOrDefault(w => w.ID == x.ApprovalStatus).Name);
            return result;
        }

        /// <summary>
        /// 查询学籍异动审核信息List
        /// </summary>
        /// <param name="configuretView"></param>
        /// <param name="campusID"></param>
        /// <param name="collegeID"></param>
        /// <param name="gradeID"></param>
        /// <param name="standardID"></param>
        /// <param name="educationID"></param>
        /// <param name="learningformID"></param>
        /// <param name="learnSystem"></param>
        /// <param name="classmajorID"></param>
        /// <param name="schoolyearID"></param>
        /// <param name="changeTypeID"></param>
        /// <param name="inSchoolStatus"></param>
        /// <param name="approvalStatus"></param>
        /// <returns></returns>
        public IList<StudentChangeView> GetChangeApproveViewList(ConfiguretView configuretView, Guid? campusID, Guid? collegeID, int? gradeID, int? standardID, 
                int? educationID, int? learningformID, string learnSystem, Guid? classmajorID, Guid? schoolyearID, int? changeTypeID, int? inSchoolStatus, int? approvalStatus)
        {
            var approveStatusList = this.GetApproveStatusViewList();
            var approveStatusIDList = approveStatusList.Select(x => x.ID).ToList();
            Expression<Func<CF_DifferentDynamic, bool>> expStudentChange = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            expStudentChange = expStudentChange.And(x => approveStatusIDList.Contains(x.ApprovalStatus));
            if (schoolyearID.HasValue)
            {
                expStudentChange = expStudentChange.And(x => x.SchoolyearID == schoolyearID);
            }
            if (changeTypeID.HasValue)
            {
                expStudentChange = expStudentChange.And(x => x.ChangeTypeID == changeTypeID);
            }
            if (approvalStatus.HasValue)
            {
                expStudentChange = expStudentChange.And(x => x.ApprovalStatus == approvalStatus);
            }
            Expression<Func<CF_Student, bool>> expStudent = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            if (classmajorID.HasValue)
            {
                expStudent = expStudent.And(x => x.ClassmajorID == classmajorID);
            }
            if (inSchoolStatus != null && inSchoolStatus > -1)
            {
                var inschoolStatusList = InSchoolSettingServices.Value.GetInschoolStatusList(true);
                if (inSchoolStatus == 1)
                {
                    expStudent = expStudent.And(x => inschoolStatusList.Contains(x.InSchoolStatusID));
                }
                if (inSchoolStatus == 0)
                {
                    expStudent = expStudent.And(x => !inschoolStatusList.Contains(x.InSchoolStatusID));
                }
            }
            var query = StudentChangeDAL.Value.GetStudentChangeViewQueryable(expStudentChange, expStudent);
            if (campusID.HasValue)
            {
                query = query.Where(x => x.CampusID == campusID);
            }
            if (collegeID.HasValue)
            {
                query = query.Where(x => x.CollegeID == collegeID);
            }
            if (gradeID.HasValue)
            {
                query = query.Where(x => x.GradeID == gradeID);
            }
            if (standardID.HasValue)
            {
                query = query.Where(x => x.StandardID == standardID);
            }
            if (educationID.HasValue)
            {
                query = query.Where(x => x.EducationID == educationID);
            }
            if (learningformID.HasValue)
            {
                query = query.Where(x => x.LearningformID == learningformID);
            }
            if (!string.IsNullOrEmpty(learnSystem) && learnSystem != "-1")
            {
                var LearnSystems = Convert.ToDecimal(learnSystem);
                query = query.Where(x => x.LearnSystem == LearnSystems);
            }

            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
            {
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue.Trim());
            }
            var result = this.GetQueryByAssistant(query, (x => x.ClassmajorID), this.GetQueryByDataRangeByCollege(query))
                    .OrderBy(x => x.SchoolyearValue).ThenBy(x => x.ChangeTypeID).ThenBy(x => x.GradeID).ThenBy(x => x.StandardID)
                    .ThenBy(x => x.EducationID).ThenBy(x => x.LearningformID).ThenBy(x => x.LearnSystem).ThenBy(x => x.StudentNo)
                    .OrderByDescending(x => x.ChangeDate).ToList();
            result.ForEach(x => x.ApprovalStatusName = approveStatusList.FirstOrDefault(w => w.ID == x.ApprovalStatus).Name);
            return result;
        }

        /// <summary>
        /// 查询对应的学籍异动信息View
        /// </summary>
        /// <param name="studentChangeID"></param>
        /// <returns></returns>
        public StudentChangeView GetStudentChangeView(Guid? studentChangeID)
        {
            try
            {
                Expression<Func<CF_DifferentDynamic, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
                exp = exp.And(x => x.StudentChangeID == studentChangeID);
                var query = StudentChangeDAL.Value.GetStudentChangeViewQueryable(exp).SingleOrDefault();
                return query;
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="studentChangeIDs"></param>
        /// <returns></returns>
        public bool ChangeApproveDelete(List<Guid?> studentChangeIDs)
        {
            try
            {
                var workflowStatusViewList = this.GetStatusViewList();
                if (workflowStatusViewList == null || workflowStatusViewList.Count() <= 0)
                {
                    throw new Exception("工作流平台中，学籍异动流程未配置，请核查。");
                }
                var approveStatusIDList = this.GetApproveStatusViewList().Select(x => x.ID).ToList();
                var studentChangeList = StudentChangeDAL.Value.StudentChangeRepository.GetList(x => studentChangeIDs.Contains(x.StudentChangeID)).ToList();
                foreach (var studentChange in studentChangeList)
                {
                    if (!approveStatusIDList.Any(x => x == studentChange.ApprovalStatus))
                    {
                        throw new Exception("只能删除待审核状态的信息，请刷新页面再次尝试。");
                    }
                }
                UnitOfWork.Delete<CF_DifferentDynamic>(x => studentChangeIDs.Contains(x.StudentChangeID));
                return true;
            }
            catch (Exception)
            {
                throw;
            }
        }

        /// <summary>
        /// 审核确定（批量）
        /// </summary>
        /// <param name="studentChangeIDs"></param>
        /// <param name="userID"></param>
        /// <param name="actionID"></param>
        /// <param name="comment"></param>
        public void ChangeApproveConfirm(List<Guid?> studentChangeIDs, Guid userID, Guid actionID, string comment)
        {
            try
            {
                var studentChangeList = StudentChangeDAL.Value.StudentChangeRepository.GetList(x => studentChangeIDs.Contains(x.StudentChangeID)).ToList();
                foreach (var studentChangeID in studentChangeIDs)
                {
                    var studentChange = studentChangeList.Where(x => x.StudentChangeID == studentChangeID).SingleOrDefault();
                    if (studentChange == null)
                    {
                        throw new Exception("数据有误，请核查");
                    }
                    else
                    {
                        if (!studentChange.SchoolyearID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：学年学期为空），请核查。");
                        }
                        if (!studentChange.ChangeTypeID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动类型为空），请核查。");
                        }
                        if (!studentChange.BeforeClassmajorID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动前班级为空），请核查。");
                        }
                        if (!studentChange.BeforeInSchoolStatusID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动前在校状态为空），请核查。");
                        }
                        if (!studentChange.AfterClassmajorID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动后班级为空），请核查。");
                        }
                        if (!studentChange.AfterInSchoolStatusID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动后在校状态为空），请核查。");
                        }
                        if (!studentChange.ChangeReasonID.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动原因为空），请核查。");
                        }
                        if (!studentChange.ChangeDate.HasValue)
                        {
                            throw new Exception("选择提交的数据存在异常（如：异动日期为空），请核查。");
                        }
                    }
                }
                this.Approve(studentChangeIDs.Select(x => x.Value).ToList(), userID, actionID, comment);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

    }
}