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

namespace EMIS.CommonLogic.SupervisionManage
{
    public class SupEvaluationServices : BaseServices, ISupEvaluationServices
    {
        public SupEvaluationDAL SupEvaluationDAL { get; set; }
        public IGridResultSet<SupEvaluationView> GetSupEvaluationViewGrid(ConfiguretView configuretView,Guid? schoolyearID, Guid? collegeID, DateTime? startTimes, DateTime? endTimes, int? SupervisionTypeID, int DataRange, int pageIndex, int pageSize)
        {
            Expression<Func<SUP_LessonRecord, bool>> lessonFilter = (x => true);
            Expression<Func<SUP_ProjectRecord, bool>> projectFilter = (x => true);
            Expression<Func<CF_Staff, bool>> supervisorExp = (x => true);
            if (schoolyearID.HasValue)
            {
                lessonFilter = lessonFilter.And(x => x.SchoolyearID == schoolyearID);
                projectFilter = projectFilter.And(x => x.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue) 
            {
                supervisorExp = supervisorExp.And(x => x.CollegeID == collegeID);
            }
            if(startTimes.HasValue)
            {
                lessonFilter = lessonFilter.And(x => x.LessonDate >= startTimes);
                projectFilter = projectFilter.And(x => x.ProjectDate >= startTimes);
            }
            if (endTimes.HasValue)
            {
                var endDate= endTimes.Value.AddDays(1);
                lessonFilter = lessonFilter.And(x => x.LessonDate < endDate);
                projectFilter = projectFilter.And(x => x.ProjectDate < endDate);
            }
            
            if(DataRange!=(int)SYS_DataRange.All)
            {
                var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
                var curUserID = curUser.UserID;
                lessonFilter = lessonFilter.And(x => x.UserID == curUserID);
                projectFilter = projectFilter.And(x => x.UserID == curUserID);
            }
            var query = SupEvaluationDAL.GetSupEvaluationViewQueryable(lessonFilter, projectFilter, supervisorExp);
            if (SupervisionTypeID.HasValue)
            {
                if (SupervisionTypeID == (int)SUP_EvaluationType.Lesson)
                {
                    query = query.Where(x => x.SupervisionTypeID ==null);
                }
                else 
                {
                    query = query.Where(x => x.SupervisionTypeID == (int)SUP_SupervisionType.Evaluation);
                }
                
            }
            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue.Trim());
            var result = query.OrderByDescending(x => x.SchoolyearCode).ThenBy(x=>x.SupervisionCollegeName).ThenBy(x=>x.UserName)
                .ThenBy(x => x.CourseName).ThenByDescending(x => x.LessonDate).ToGridResultSet<SupEvaluationView>(pageIndex, pageSize);
            return result;
        }
        public List<SupEvaluationView> GetSupEvaluationViewGridList(ConfiguretView configuretView,Guid? schoolyearID, Guid? collegeID, DateTime? startTimes, DateTime? endTimes, int? SupervisionTypeID, int DataRange, List<Guid> selectedLessonRecordID, List<Guid> selectedProjectRecordID) 
        {
            Expression<Func<SUP_LessonRecord, bool>> lessonFilter = (x => true);
            Expression<Func<SUP_ProjectRecord, bool>> projectFilter = (x => true);
            Expression<Func<CF_Staff, bool>> supervisorExp = (x => true);
            if (schoolyearID.HasValue)
            {
                lessonFilter = lessonFilter.And(x => x.SchoolyearID == schoolyearID);
                projectFilter = projectFilter.And(x => x.SchoolyearID == schoolyearID);
            }
            if (collegeID.HasValue)
            {
                supervisorExp = supervisorExp.And(x => x.CollegeID == collegeID);
            }
            if (startTimes.HasValue)
            {
                lessonFilter = lessonFilter.And(x => x.LessonDate >= startTimes);
                projectFilter = projectFilter.And(x => x.ProjectDate >= startTimes);
            }
            if (endTimes.HasValue)
            {
                lessonFilter = lessonFilter.And(x => x.LessonDate < endTimes.Value.AddDays(1));
                projectFilter = projectFilter.And(x => x.ProjectDate < endTimes.Value.AddDays(1));
            }

            if (DataRange != (int)SYS_DataRange.All)
            {
                var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
                var curUserID = curUser.UserID;
                lessonFilter = lessonFilter.And(x => x.UserID == curUserID);
                projectFilter = projectFilter.And(x => x.UserID == curUserID);
            }

            var query = SupEvaluationDAL.GetSupEvaluationViewQueryable(lessonFilter, projectFilter, supervisorExp);
            if (selectedLessonRecordID.Count > 0)
            {
                List<Guid?> LessonRecordIDList = new List<Guid?>();
                foreach(var LessonRecordID in selectedLessonRecordID)
                {
                    LessonRecordIDList.Add(LessonRecordID);
                }
                query = query.Where(x => LessonRecordIDList.Contains(x.LessonRecordID));
            }
            if (selectedProjectRecordID.Count > 0)
            {
                List<Guid?> ProjectRecordIDList = new List<Guid?>();
                foreach (var ProjectRecordID in selectedLessonRecordID)
                {
                    ProjectRecordIDList.Add(ProjectRecordID);
                }
                query = query.Where(x => ProjectRecordIDList.Contains(x.ProjectRecordID));
            }
            if (SupervisionTypeID.HasValue)
            {
                query = query.Where(x => x.SupervisionTypeID == SupervisionTypeID);
            }
            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue.Trim());

            return query.ToList();
        }
    }
}