using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Data.Entity;
using System.Text;
using System.Web;
using Autofac;
using Bowin.Common;
using Bowin.Common.Linq.Entity;
using EMIS.Utility;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.DataLogic;
using EMIS.DataLogic.SystemDAL;

namespace EMIS.CommonLogic
{
    public class BaseServices : IBaseServices
    {
        public UnitOfWork UnitOfWork { get; set; }
        public HRUnitOfWork HRUnitOfWork { get; set; }
        public LogUnitOfWork LogUnitOfWork { get; set; }
        private DataRangeDAL DataRangeDAL { get; set; }

        /// <summary>
        /// 
        /// </summary>
        public BaseServices()
        {
            DataRangeDAL = AutofacHelper.RequestLifetimeScope.Resolve<DataRangeDAL>();
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="userColumn"></param>
        /// <returns></returns>
        protected Expression<Func<T, bool>> GetDataRageExpression<T>(Expression<Func<T, Guid?>> userColumn)
        {
            ParameterExpression paramter;
            var userColumnExp = userColumn;
            paramter = userColumnExp.Parameters[0];
            SYS_DataRange dataRange;
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                dataRange = SYS_DataRange.Teacher;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);

            IQueryable<Guid?> userIDQueryable;
            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return (x => true);
                case SYS_DataRange.Campus:
                    userIDQueryable = UnitOfWork.CF_StaffManageCampus.Where(x => x.UserID == curUserID)
                        .SelectMany(x => x.CF_Campus.CF_College).SelectMany(x => x.CF_Staff).Select(x => (Guid?)x.UserID);
                    break;
                case SYS_DataRange.College:
                    userIDQueryable = UnitOfWork.CF_StaffManageCollege.Where(x => x.UserID == curUserID)
                        .SelectMany(x => x.CF_College.CF_Staff).Select(x => (Guid?)x.UserID);
                    break;
                case SYS_DataRange.Department:
                    userIDQueryable = UnitOfWork.CF_StaffManageDepartment.Where(x => x.UserID == curUserID)
                        .SelectMany(x => x.CF_Department.CF_Staff).Select(x => (Guid?)x.UserID);
                    break;
                case SYS_DataRange.Assistant:
                    return (x => false);
                case SYS_DataRange.Teacher:
                    return Expression.Lambda<Func<T, bool>>(Expression.Equal(userColumnExp.Body, Expression.Constant(curUserID, typeof(Guid?))), paramter);
            }
            return Expression.Lambda<Func<T, bool>>(Expression.Call(typeof(Queryable), "Contains", new Type[] { typeof(Guid?) }, userIDQueryable.Expression, userColumnExp.Body), paramter);
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="collegeColumn"></param>
        /// <returns></returns>
        protected Expression<Func<T, bool>> GetDataRageExpressionByCollege<T>(Expression<Func<T, Guid?>> collegeColumn)
        {
            ParameterExpression paramter;
            var collegeColumnExp = collegeColumn;
            paramter = collegeColumnExp.Parameters[0];
            SYS_DataRange dataRange;
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                dataRange = SYS_DataRange.Teacher;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);

            IQueryable<Guid?> collegeIDQueryable;
            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return (x => true);
                case SYS_DataRange.Campus:
                    collegeIDQueryable = UnitOfWork.CF_StaffManageCampus.Where(x => x.UserID == curUserID)
                        .SelectMany(x => x.CF_Campus.CF_College).Select(x => (Guid?)x.CollegeID);
                    break;
                case SYS_DataRange.College:
                    collegeIDQueryable = UnitOfWork.CF_StaffManageCollege.Where(x => x.UserID == curUserID)
                        .Select(x => (Guid?)x.CollegeID);
                    break;
                case SYS_DataRange.Department:
                    collegeIDQueryable = UnitOfWork.CF_StaffManageDepartment.Where(x => x.UserID == curUserID)
                        .Select(x => (Guid?)x.CF_Department.CollegeID);
                    break;
                case SYS_DataRange.Assistant:
                    return (x => false);
                case SYS_DataRange.Teacher:
                    return Expression.Lambda<Func<T, bool>>(Expression.Equal(collegeColumnExp.Body, Expression.Constant(curUser.CollegeID, typeof(Guid?))), paramter);
            }
            return Expression.Lambda<Func<T, bool>>(Expression.Call(typeof(Queryable), "Contains", new Type[] { typeof(Guid?) }, collegeIDQueryable.Expression, collegeColumnExp.Body), paramter);
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="query"></param>
        /// <param name="classmajorColumn"></param>
        /// <param name="defaultQuery"></param>
        /// <returns></returns>
        protected IQueryable<T> GetQueryByAssistant<T>(IQueryable<T> query, Expression<Func<T, Guid?>> classmajorColumn = null, IQueryable<T> defaultQuery = null)
        {
            ExpressionFactory<T> factory = new ExpressionFactory<T>(query);
            var outerExp = classmajorColumn;
            if (classmajorColumn == null)
            {
                ParameterExpression paramter = Expression.Parameter(typeof(T));
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "ClassmajorID"), typeof(Guid?)), paramter);
            }
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                return query;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);
            if (dataRange == SYS_DataRange.Assistant)
            {
                var queryWithClassmajor = query.Join(
                    UnitOfWork.CF_Classmajor.AsQueryable().Where(x => x.UserID == curUserID), 
                    outerExp, 
                    (x => x.ClassmajorID), 
                    ((x, y) => x));

                return queryWithClassmajor;
            }
            else
            {
                if (defaultQuery != null)
                {
                    return defaultQuery;
                }
                else
                {
                    return query;
                }
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="query"></param>
        /// <param name="userColumn"></param>
        /// <returns></returns>
        protected IQueryable<T> GetQueryByDataRange<T>(IQueryable<T> query, Expression<Func<T, Guid?>> userColumn = null)
        {
            ExpressionFactory<T> factory = new ExpressionFactory<T>(query);
            var outerExp = userColumn;
            if (userColumn == null)
            {
                ParameterExpression paramter = Expression.Parameter(typeof(T));
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Property(paramter, "CreateUserID"), paramter);
            }

            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                return query;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);

            var queryWithUserAndDepartment = query
                .Join(UnitOfWork.CF_Staff.AsQueryable(), outerExp, (x => x.UserID), ((x, y) => new { result = x, user = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return query;
                case SYS_DataRange.Campus:
                    return query
                        .Join(
                            UnitOfWork.CF_Campus.SelectMany(x => x.CF_StaffManageCampus)
                            .Where(x => x.UserID == curUser.UserID)
                            .SelectMany(x => x.CF_Campus.CF_College.SelectMany(w => w.CF_Staff)),
                            outerExp, (x => x.UserID), ((x, y) => x));
                case SYS_DataRange.College:
                    return query
                        .Join(
                            UnitOfWork.CF_College.SelectMany(x => x.CF_StaffManageCollege)
                            .Where(x => x.UserID == curUser.UserID)
                            .SelectMany(x => x.CF_College.CF_Staff),
                            outerExp, (x => x.UserID), ((x, y) => x));
                case SYS_DataRange.Department:
                    return query
                        .Join(
                            UnitOfWork.CF_Department.SelectMany(x => x.CF_StaffManageDepartment)
                            .Where(x => x.UserID == curUser.UserID)
                            .SelectMany(x => x.CF_Department.CF_Staff),
                            outerExp, (x => x.UserID), ((x, y) => x));
                case SYS_DataRange.Assistant:
                    return query.Where(x => false);
                case SYS_DataRange.Teacher:
                    return query
                        .Join(
                            UnitOfWork.CF_Staff.Where(x => x.UserID == curUser.UserID),
                            outerExp, (x => x.UserID), ((x, y) => x));
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="query"></param>
        /// <param name="campusColumn"></param>
        /// <returns></returns>
        protected IQueryable<T> GetQueryByDataRangeByCampus<T>(IQueryable<T> query, Expression<Func<T, Guid?>> campusColumn = null)
        {
            ExpressionFactory<T> factory = new ExpressionFactory<T>(query);
            var outerExp = campusColumn;

            if (campusColumn == null)
            {
                ParameterExpression paramter = Expression.Parameter(typeof(T));
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "CampusID"), typeof(Guid?)), paramter);
            }

            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                return query;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);

            var queryWithCampus = query
                        .Join(UnitOfWork.CF_Campus.AsQueryable(), outerExp, (x => x.CampusID), ((x, y) => new { result = x, campus = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return query;
                case SYS_DataRange.Campus:
                    return queryWithCampus
                        .Where(x => x.campus.CF_StaffManageCampus.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.College:
                    return queryWithCampus
                        .Where(x => x.campus.CF_College.SelectMany(w => w.CF_StaffManageCollege).Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.Department:
                    return queryWithCampus
                        .Where(x => x.campus.CF_College.SelectMany(w => w.CF_Department).SelectMany(w => w.CF_StaffManageDepartment)
                        .Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.Assistant:
                    return query.Where(x => false);
                case SYS_DataRange.Teacher:
                    return queryWithCampus
                        .Where(x => x.campus.CF_College.SelectMany(w => w.CF_Staff).Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="query"></param>
        /// <param name="collegeColumn"></param>
        /// <returns></returns>
        protected IQueryable<T> GetQueryByDataRangeByCollege<T>(IQueryable<T> query, Expression<Func<T, Guid?>> collegeColumn = null)
        {
            ExpressionFactory<T> factory = new ExpressionFactory<T>(query);
            var outerExp = collegeColumn;

            if (collegeColumn == null)
            {
                ParameterExpression paramter = Expression.Parameter(typeof(T));
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "CollegeID"), typeof(Guid?)), paramter);
            }

            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                return query;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);

            var queryWithCollege = query
                        .Join(UnitOfWork.CF_College.AsQueryable(), outerExp, (x => x.CollegeID), ((x, y) => new { result = x, college = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return query;
                case SYS_DataRange.Campus:
                    return queryWithCollege
                        .Where(x => x.college.CF_Campus.CF_StaffManageCampus.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.College:
                    return queryWithCollege
                        .Where(x => x.college.CF_StaffManageCollege.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.Department:
                    return queryWithCollege
                        .Where(x => x.college.CF_Department.SelectMany(w => w.CF_StaffManageDepartment).Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.Assistant:
                    return query.Where(x => false);
                case SYS_DataRange.Teacher:
                    return queryWithCollege
                        .Where(x => x.college.CF_Staff.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="query"></param>
        /// <param name="departmentColumn"></param>
        /// <returns></returns>
        protected IQueryable<T> GetQueryByDataRangeByDepartment<T>(IQueryable<T> query, Expression<Func<T, Guid?>> departmentColumn = null)
        {
            ExpressionFactory<T> factory = new ExpressionFactory<T>(query);
            var outerExp = departmentColumn;

            if (departmentColumn == null)
            {
                ParameterExpression paramter = Expression.Parameter(typeof(T));
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "DepartmentID"), typeof(Guid?)), paramter);
            }

            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            if (curUser.IsStudent)
            {
                return query;
            }
            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetRoleDataRange(curUser.RoleID, menuNo);

            var queryWithDepartment = query
                        .Join(UnitOfWork.CF_Department.AsQueryable(), outerExp, (x => x.DepartmentID), ((x, y) => new { result = x, department = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return query;
                case SYS_DataRange.Campus:
                    return queryWithDepartment
                        .Where(x => x.department.CF_College.CF_Campus.CF_StaffManageCampus.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.College:
                    return queryWithDepartment
                        .Where(x => x.department.CF_College.CF_StaffManageCollege.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.Department:
                    return queryWithDepartment
                        .Where(x => x.department.CF_StaffManageDepartment.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
                case SYS_DataRange.Assistant:
                    return query.Where(x => false);
                case SYS_DataRange.Teacher:
                    return queryWithDepartment
                        .Where(x => x.department.CF_Staff.Any(w => w.UserID == curUserID))
                        .Select(x => x.result);
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="formIDList"></param>
        /// <param name="userID"></param>
        /// <param name="userColumn"></param>
        /// <returns></returns>
        protected bool IsUserInDataRange<T>(List<Guid> formIDList, Guid userID, Expression<Func<T, Guid?>> userColumn = null) where T : class
        {
            var outerExp = userColumn;
            ParameterExpression paramter = Expression.Parameter(typeof(T));
            if (userColumn == null)
            {
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "CreateUserID"), typeof(Guid?)), paramter);
            }
            var containMethodInfo = formIDList.GetType().GetMethod("Contains");
            var keyExp = Expression.Lambda<Func<T, bool>>(
                Expression.Call(Expression.Constant(formIDList), containMethodInfo, Expression.Property(paramter, TableKeyDictionary.GetKeyName<T>())),
                paramter
                );

            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetUserDataRange(userID, menuNo);

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return true;
                case SYS_DataRange.Campus:
                    return UnitOfWork.Set<T>().Where(keyExp)
                        .Join(
                            UnitOfWork.CF_Campus.SelectMany(x => x.CF_StaffManageCampus).Select(x => x.CF_Staff)
                            .Where(x => x.UserID == userID),
                            outerExp, (x => x.UserID), ((x, y) => x))
                        .Count() == formIDList.Count;
                case SYS_DataRange.College:
                    return UnitOfWork.Set<T>().Where(keyExp)
                        .Join(
                            UnitOfWork.CF_College.SelectMany(x => x.CF_StaffManageCollege).Select(x => x.CF_Staff)
                            .Where(x => x.UserID == userID),
                            outerExp, (x => x.UserID), ((x, y) => x))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Department:
                    return UnitOfWork.Set<T>().Where(keyExp)
                        .Join(
                            UnitOfWork.CF_Department.SelectMany(x => x.CF_StaffManageDepartment).Select(x => x.CF_Staff)
                            .Where(x => x.UserID == userID),
                            outerExp, (x => x.UserID), ((x, y) => x))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Assistant:
                    return false;
                case SYS_DataRange.Teacher:
                    return UnitOfWork.Set<T>().Where(keyExp)
                        .Join(
                            UnitOfWork.CF_Staff.Where(x => x.UserID == userID),
                            outerExp, (x => x.UserID), ((x, y) => x))
                        .Count() == formIDList.Count;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="formIDList"></param>
        /// <param name="userID"></param>
        /// <param name="departmentColumn"></param>
        /// <returns></returns>
        protected bool IsUserInDataRangeByDepartment<T>(List<Guid> formIDList, Guid userID, Expression<Func<T, Guid?>> departmentColumn = null) where T : class
        {
            var outerExp = departmentColumn;
            ParameterExpression paramter = Expression.Parameter(typeof(T));
            if (departmentColumn == null)
            {
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "DepartmentID"), typeof(Guid?)), paramter);
            }
            var containMethodInfo = formIDList.GetType().GetMethod("Contains");
            var keyExp = Expression.Lambda<Func<T, bool>>(
                Expression.Call(Expression.Constant(formIDList), containMethodInfo, Expression.Property(paramter, TableKeyDictionary.GetKeyName<T>())),
                paramter
                );

            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetUserDataRange(userID, menuNo);

            var queryWithDepartment = UnitOfWork.Set<T>().Where(keyExp)
                        .Join(UnitOfWork.CF_Department.AsQueryable(), outerExp, (x => x.DepartmentID), ((x, y) => new { result = x, department = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return true;
                case SYS_DataRange.Campus:
                    return queryWithDepartment
                        .Where(x => x.department.CF_College.CF_Campus.CF_StaffManageCampus.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.College:
                    return queryWithDepartment
                        .Where(x => x.department.CF_College.CF_StaffManageCollege.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Department:
                    return queryWithDepartment
                        .Where(x => x.department.CF_StaffManageDepartment.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Assistant:
                    return false;
                case SYS_DataRange.Teacher:
                    return queryWithDepartment
                        .Where(x => x.department.CF_Staff.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="formIDList"></param>
        /// <param name="userID"></param>
        /// <param name="collegeColumn"></param>
        /// <returns></returns>
        protected bool IsUserInDataRangeByCollege<T>(List<Guid> formIDList, Guid userID, Expression<Func<T, Guid?>> collegeColumn = null) where T : class
        {
            var outerExp = collegeColumn;
            ParameterExpression paramter = Expression.Parameter(typeof(T));
            if (collegeColumn == null)
            {
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "CollegeID"), typeof(Guid?)), paramter);
            }
            var containMethodInfo = formIDList.GetType().GetMethod("Contains");
            var keyExp = Expression.Lambda<Func<T, bool>>(
                Expression.Call(Expression.Constant(formIDList), containMethodInfo, Expression.Property(paramter, TableKeyDictionary.GetKeyName<T>())),
                paramter
                );

            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetUserDataRange(userID, menuNo);

            var queryWithCollege = UnitOfWork.Set<T>().Where(keyExp)
                        .Join(UnitOfWork.CF_College.AsQueryable(), outerExp, (x => x.CollegeID), ((x, y) => new { result = x, college = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return true;
                case SYS_DataRange.Campus:
                    return queryWithCollege
                        .Where(x => x.college.CF_Campus.CF_StaffManageCampus.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.College:
                    return queryWithCollege
                        .Where(x => x.college.CF_StaffManageCollege.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Department:
                    return queryWithCollege
                        .Where(x => x.college.CF_Department.SelectMany(w => w.CF_StaffManageDepartment).Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Assistant:
                    return false;
                case SYS_DataRange.Teacher:
                    return queryWithCollege
                        .Where(x => x.college.CF_Staff.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="formIDList"></param>
        /// <param name="userID"></param>
        /// <param name="campusColumn"></param>
        /// <returns></returns>
        protected bool IsUserInDataRangeByCampusID<T>(List<Guid> formIDList, Guid userID, Expression<Func<T, Guid?>> campusColumn = null) where T : class
        {
            var outerExp = campusColumn;
            ParameterExpression paramter = Expression.Parameter(typeof(T));
            if (campusColumn == null)
            {
                outerExp = Expression.Lambda<Func<T, Guid?>>(Expression.Convert(Expression.Property(paramter, "CampusID"), typeof(Guid?)), paramter);
            }
            var containMethodInfo = formIDList.GetType().GetMethod("Contains");
            var keyExp = Expression.Lambda<Func<T, bool>>(
                Expression.Call(Expression.Constant(formIDList), containMethodInfo, Expression.Property(paramter, TableKeyDictionary.GetKeyName<T>())),
                paramter
                );

            var menuNo = HttpHelper.GetMenuNo();
            if (string.IsNullOrEmpty(menuNo))
            {
                menuNo = HttpContext.Current.Request.UrlReferrer.GetQueryStringByPath("FromMNU");
            }
            SYS_DataRange dataRange = DataRangeDAL.GetUserDataRange(userID, menuNo);

            var queryWithCampus = UnitOfWork.Set<T>().Where(keyExp)
                        .Join(UnitOfWork.CF_Campus.AsQueryable(), outerExp, (x => x.CampusID), ((x, y) => new { result = x, campus = y }));

            switch (dataRange)
            {
                case SYS_DataRange.All:
                default:
                    return true;
                case SYS_DataRange.Campus:
                    return queryWithCampus
                        .Where(x => x.campus.CF_StaffManageCampus.Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.College:
                    return queryWithCampus
                        .Where(x => x.campus.CF_College.SelectMany(w => w.CF_StaffManageCollege).Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Department:
                    return queryWithCampus
                        .Where(x => x.campus.CF_College.SelectMany(w => w.CF_Department).SelectMany(w => w.CF_StaffManageDepartment).Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
                case SYS_DataRange.Assistant:
                    return false;
                case SYS_DataRange.Teacher:
                    return queryWithCampus
                        .Where(x => x.campus.CF_College.SelectMany(w => w.CF_Staff).Any(w => w.UserID == userID))
                        .Count() == formIDList.Count;
            }
        }

        /// <summary>
        /// Add
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="entity"></param>
        public void SetNewStatus<T>(T entity)
        {
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            //typeof(T).GetProperty(TableKeyDictionary.GetKeyName(entity))
            //    .SetValue(entity, Guid.NewGuid(), null);
            dynamic dyEntity = entity;
            dyEntity.RecordStatus = (int)SYS_STATUS.USABLE;
            dyEntity.CreateUserID = curUserID;
            dyEntity.ModifyUserID = curUserID;
            dyEntity.ModifyTime = dyEntity.CreateTime = DateTime.Now;
        }

        /// <summary>
        /// Add
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="entity"></param>
        /// <param name="recordStatus"></param>
        public void SetNewStatus<T>(T entity, int recordStatus)
        {
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            //typeof(T).GetProperty(TableKeyDictionary.GetKeyName(entity))
            //    .SetValue(entity, Guid.NewGuid(), null);
            dynamic dyEntity = entity;
            dyEntity.RecordStatus = recordStatus;
            dyEntity.CreateUserID = curUserID;
            dyEntity.ModifyUserID = curUserID;
            dyEntity.ModifyTime = dyEntity.CreateTime = DateTime.Now;
        }

        /// <summary>
        /// Update
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="entity"></param>
        public void SetModifyStatus<T>(T entity)
        {
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var curUserID = curUser.UserID;
            dynamic dyEntity = entity;
            dyEntity.ModifyUserID = curUserID;
            dyEntity.ModifyTime = DateTime.Now;
        } 

    }
}