using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Linq.Expressions;
using Bowin.Common.Linq.Entity;
using Bowin.Common.Linq;
using EMIS.DataLogic.RetakeManage;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.ViewModel.RetakeManage;
using EMIS.Utility;
using EMIS.CommonLogic.SystemServices;
using EMIS.ViewModel.EducationManage;
using EMIS.DataLogic.EducationManage;
using EMIS.CommonLogic.EducationSchedule;
using EMIS.DataLogic.SystemSetting;
using EMIS.CommonLogic.RetakeManage.General;
using EMIS.CommonLogic.StudentManage.StudentStatistics;

namespace EMIS.CommonLogic.RetakeManage.General
{
    public class RetakePlanListServices : BaseServices, IRetakePlanListServices
    {
        public RetakePlanTaskDAL RetakePlanTaskDAL { get; set; }
        public IInSchoolSettingServices InSchoolSettingServices { get; set; }

        /// <summary>
        /// 查询重修任务名单View
        /// </summary>
        /// <param name="configuretView"></param>
        /// <param name="schoolyearID"></param>
        /// <param name="collegeID"></param>
        /// <param name="yearID"></param>
        /// <param name="standardID"></param>
        /// <param name="educationID"></param>
        /// <param name="learningformID"></param>
        /// <param name="learnSystem"></param>
        /// <param name="classmajorID"></param>
        /// <param name="coursematerialID"></param>
        /// <param name="inSchoolStatus"></param>
        /// <param name="retakePlanStatusID"></param>
        /// <param name="generalPurposeID"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        public IGridResultSet<RetakeStudentListView> GetRetakePlanStudentView(ConfiguretView configuretView, Guid? schoolyearID, Guid? collegeID,
            int? yearID, int? standardID, int? educationID, int? learningformID, string learnSystem, Guid? classmajorID, Guid? coursematerialID,
            int? inSchoolStatus, int? retakePlanStatusID, int? generalPurposeID, int pageIndex, int pageSize)
        {
            //重修计划
            Expression<Func<ER_RetakePlan, bool>> expRetakePlan = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            if (coursematerialID.HasValue)
            {
                //课程信息
                expRetakePlan = expRetakePlan.And(x => x.CoursematerialID == coursematerialID);
            }
            if (schoolyearID.HasValue)
            {
                //重修学年学期
                expRetakePlan = expRetakePlan.And(x => x.SchoolyearID == schoolyearID);
            }
            if (retakePlanStatusID.HasValue)
            {
                //重修任务状态
                expRetakePlan = expRetakePlan.And(x => x.RecordStatus == retakePlanStatusID);
            }

            //学生信息
            Expression<Func<CF_Student, bool>> expStudent = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            if (classmajorID.HasValue)
            {
                //班级信息
                expStudent = expStudent.And(x => x.ClassmajorID == classmajorID);
            }
            if (inSchoolStatus != null && inSchoolStatus > -1)
            {
                //在校状态
                var inschoolStatusList = InSchoolSettingServices.GetInschoolStatusList(true);
                if (inSchoolStatus == 1)
                {
                    //表示在校
                    expStudent = expStudent.And(x => inschoolStatusList.Contains(x.InSchoolStatusID));
                }
                if (inSchoolStatus == 0)
                {
                    //不在校
                    expStudent = expStudent.And(x => !inschoolStatusList.Contains(x.InSchoolStatusID));
                }
            }

            var query = RetakePlanTaskDAL.GetRetakePlanTaskStudentView(expRetakePlan, x => true, expStudent);

            if (collegeID.HasValue)
            {
                //院系所
                query = query.Where(x => x.CollegeID == collegeID);
            }
            if (yearID.HasValue)
            {
                //年级
                query = query.Where(x => x.Gradeyear == yearID);
            }
            if (standardID.HasValue)
            {
                //专业名称
                query = query.Where(x => x.StandardID == standardID);
            }
            if (educationID.HasValue)
            {
                //培养层次
                query = query.Where(x => x.EducationID == educationID);
            }
            if (learningformID.HasValue)
            {
                //学习形式
                query = query.Where(x => x.LearningformID == learningformID);
            }
            if (!string.IsNullOrEmpty(learnSystem) && learnSystem != "-1")
            {
                //学制
                var LearnSystems = Convert.ToDecimal(learnSystem);
                query = query.Where(x => x.LearnSystem == LearnSystems);
            }
            if (generalPurposeID.HasValue)
            {
                //报名状态
                if (generalPurposeID.Value == (int)CF_GeneralPurpose.IsYes)
                {
                    query = query.Where(x => x.ApplyStatus == true);
                }
                if (generalPurposeID.Value == (int)CF_GeneralPurpose.IsNo)
                {
                    query = query.Where(x => x.ApplyStatus == false);
                }
            }

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

            return this.GetQueryByDataRangeByCollege(query).OrderBy(x => x.SchoolyearCode)
                    .ThenBy(x => x.CourseCode.Length).ThenBy(x => x.CourseCode)
                    .ThenBy(x => x.CourseTypeID).ThenBy(x => x.CourseCredit)
                    .ThenBy(x => x.DepartmentCode.Length).ThenBy(x => x.DepartmentCode)
                    .ThenBy(x => x.LoginID.Length).ThenBy(x => x.LoginID)
                    .ToGridResultSet<RetakeStudentListView>(pageIndex, pageSize);

        }

        /// <summary>
        /// 查询重修任务名单List
        /// </summary>
        /// <param name="configuretView"></param>
        /// <param name="schoolyearID"></param>
        /// <param name="collegeID"></param>
        /// <param name="yearID"></param>
        /// <param name="standardID"></param>
        /// <param name="educationID"></param>
        /// <param name="learningformID"></param>
        /// <param name="learnSystem"></param>
        /// <param name="classmajorID"></param>
        /// <param name="coursematerialID"></param>
        /// <param name="inSchoolStatus"></param>
        /// <param name="retakePlanStatusID"></param>
        /// <param name="generalPurposeID"></param>
        /// <returns></returns>
        public List<RetakeStudentListView> GetRetakePlanStudentViewList(ConfiguretView configuretView, Guid? schoolyearID, Guid? collegeID,
            int? yearID, int? standardID, int? educationID, int? learningformID, string learnSystem, Guid? classmajorID, Guid? coursematerialID,
            int? inSchoolStatus, int? retakePlanStatusID, int? generalPurposeID)
        {
            //重修计划
            Expression<Func<ER_RetakePlan, bool>> expRetakePlan = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            if (coursematerialID.HasValue)
            {
                //课程信息
                expRetakePlan = expRetakePlan.And(x => x.CoursematerialID == coursematerialID);
            }
            if (schoolyearID.HasValue)
            {
                //重修学年学期
                expRetakePlan = expRetakePlan.And(x => x.SchoolyearID == schoolyearID);
            }
            if (retakePlanStatusID.HasValue)
            {
                //重修任务状态
                expRetakePlan = expRetakePlan.And(x => x.RecordStatus == retakePlanStatusID);
            }

            //学生信息
            Expression<Func<CF_Student, bool>> expStudent = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            if (classmajorID.HasValue)
            {
                //班级信息
                expStudent = expStudent.And(x => x.ClassmajorID == classmajorID);
            }
            if (inSchoolStatus != null && inSchoolStatus > -1)
            {
                //在校状态
                var inschoolStatusList = InSchoolSettingServices.GetInschoolStatusList(true);
                if (inSchoolStatus == 1)
                {
                    //表示在校
                    expStudent = expStudent.And(x => inschoolStatusList.Contains(x.InSchoolStatusID));
                }
                if (inSchoolStatus == 0)
                {
                    //不在校
                    expStudent = expStudent.And(x => !inschoolStatusList.Contains(x.InSchoolStatusID));
                }
            }

            var query = RetakePlanTaskDAL.GetRetakePlanTaskStudentView(expRetakePlan, x => true, expStudent);

            if (collegeID.HasValue)
            {
                //院系所
                query = query.Where(x => x.CollegeID == collegeID);
            }
            if (yearID.HasValue)
            {
                //年级
                query = query.Where(x => x.Gradeyear == yearID);
            }
            if (standardID.HasValue)
            {
                //专业名称
                query = query.Where(x => x.StandardID == standardID);
            }
            if (educationID.HasValue)
            {
                //培养层次
                query = query.Where(x => x.EducationID == educationID);
            }
            if (learningformID.HasValue)
            {
                //学习形式
                query = query.Where(x => x.LearningformID == learningformID);
            }
            if (!string.IsNullOrEmpty(learnSystem) && learnSystem != "-1")
            {
                //学制
                var LearnSystems = Convert.ToDecimal(learnSystem);
                query = query.Where(x => x.LearnSystem == LearnSystems);
            }
            if (generalPurposeID.HasValue)
            {
                //报名状态
                if (generalPurposeID.Value == (int)CF_GeneralPurpose.IsYes)
                {
                    query = query.Where(x => x.ApplyStatus == true);
                }
                if (generalPurposeID.Value == (int)CF_GeneralPurpose.IsNo)
                {
                    query = query.Where(x => x.ApplyStatus == false);
                }
            }

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

            return this.GetQueryByDataRangeByCollege(query).OrderBy(x => x.SchoolyearCode)
                    .ThenBy(x => x.CourseCode.Length).ThenBy(x => x.CourseCode)
                    .ThenBy(x => x.CourseTypeID).ThenBy(x => x.CourseCredit)
                    .ThenBy(x => x.DepartmentCode.Length).ThenBy(x => x.DepartmentCode)
                    .ThenBy(x => x.LoginID.Length).ThenBy(x => x.LoginID)
                    .ToList();
        }

        /// <summary>
        /// 删除重修任务名单
        /// </summary>
        /// <param name="retakePlanStudentIDsList"></param>
        public void DeleteRetakePlanStudent(IList<Guid?> retakePlanStudentIDsList)
        {
            try
            {
                //查询对应的重修计划名单信息
                var retakePlanStudentViewList = RetakePlanTaskDAL.RetakePlanStudentRepository
                    .GetList(x => retakePlanStudentIDsList.Contains(x.RetakePlanStudentID),
                    (x => x.ER_RetakePlan), (x => x.ER_RetakePlan.CF_Student)).ToList();

                if (retakePlanStudentViewList.Any(x => x.ER_RetakePlan.RecordStatus == (int)EMIS.ViewModel.ER_RetakePlanStatus.Generated))
                {
                    throw new Exception("不能删除已开班状态的重修任务名单。");
                }

                //查询对应的重修报名信息List
                var retakePlanStudentApplyList = RetakePlanTaskDAL.RetakePlanStudentRepository
                            .GetList(x => retakePlanStudentIDsList.Contains(x.RetakePlanStudentID),
                            (x => x.ER_RetakePlan),
                            (x => x.ER_RetakePlan.CF_Student))
                            .Where(x => x.ER_RetakePlan.CF_Student.Any(w => w.UserID == x.UserID))
                            .ToList();

                if (retakePlanStudentApplyList.Count() > 0)
                {
                    //查询对应的重修计划信息
                    var retakePlanViewList = retakePlanStudentApplyList
                            .Select(x => x.ER_RetakePlan).Distinct().ToList();

                    //重修报名表
                    foreach (var retakePlan in retakePlanViewList)
                    {
                        //查询存在报名名单的重修计划名单对应的userIDList
                        var userIDList = retakePlanStudentApplyList
                                .Where(x => x.RetakePlanID == retakePlan.RetakePlanID)
                                .Select(x => x.UserID).ToList();

                        retakePlan.CF_Student.RemoveWhere(x => userIDList.Contains(x.UserID));
                    }


                    //throw new Exception("要删除的重修计划名单已进行重修报名。");
                }

                //重修计划名单表
                //UnitOfWork.RemoveRange(new HashSet<ER_RetakePlanStudent>(retakePlanStudentViewList));
                UnitOfWork.Remove<ER_RetakePlanStudent>(x => retakePlanStudentIDsList.Contains(x.RetakePlanStudentID));

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

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