using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMIS.DataLogic.SchedulingManage.SchedulingSettings;
using Bowin.Common.Linq.Entity;
using Bowin.Common.Linq;
using EMIS.ViewModel.SchedulingManage.SchedulingSettings;
using System.Linq.Expressions;
using EMIS.Entities;
using EMIS.DataLogic.UniversityManage.ClassroomManage;
using EMIS.ViewModel;
using EMIS.Utility;

namespace EMIS.CommonLogic.SchedulingManage.SchedulingSettings
{
    public class CourseTimeHoursServices:BaseServices,ICourseTimeHoursServices
    {
        public CourseTimeHoursDAL CourseTimeHoursDAL { get; set; }
        /// <summary>
        /// 查询课程时间信息
        /// </summary>
        /// <param name="configuretView">查询条件实体</param>
        /// <param name="timesSegment">时间段</param>
        /// <param name="pageIndex">页码</param>
        /// <param name="pageSize">显示页数</param>
        /// <returns></returns>
        public IGridResultSet<CourseTimeHoursView> GetCoursesTimeViewGrid(ConfiguretView configuretView, int? year, Guid? CoursesTimeID, int pageIndex, int pageSize)
        {

            Expression<Func<EM_CoursesTime, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            Expression<Func<TP_CourseTimeHours, bool>> exps = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            
            if(CoursesTimeID.HasValue){

                exp = exp.And(x => x.CoursesTimeID == CoursesTimeID);
            }
            if(year.HasValue&&year!=-1)
            {
                exps = exps.And(x => x.Years == year);
            }
            var query = CourseTimeHoursDAL.GetCoursesTimeQueryable(exp, exps);
            
            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
                return query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue).ToGridResultSet<CourseTimeHoursView>(pageIndex, pageSize);
            return query.OrderByDescending(x => x.Year).ToGridResultSet<CourseTimeHoursView>(pageIndex, pageSize);
        }

        //查询学时转换
        public CourseTimeHoursView GetCourseTimeHoursView(Guid? id) {
            Expression<Func<EM_CoursesTime, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            Expression<Func<TP_CourseTimeHours, bool>> exps = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE&&x.CourseTimeHoursID==id);
            var query=CourseTimeHoursDAL.GetCoursesTimeQueryable(exp, exps).FirstOrDefault();
            if(query!=null){
                CourseTimeHoursView CourseTimeHoursView=new CourseTimeHoursView();
                CourseTimeHoursView.CourseTimeHoursID=query.CourseTimeHoursID;
                CourseTimeHoursView.CoursesTimeID=query.CoursesTimeID;
                CourseTimeHoursView.Year = query.Year;
                CourseTimeHoursView.Hours = query.Hours;
                return CourseTimeHoursView;
            }
            return null;
        }

        //保存
        public void save(CourseTimeHoursView CourseTimeHoursView) {
             
            TP_CourseTimeHours TP_CourseTimeHours;
            try
            {
                Expression<Func<EM_CoursesTime, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
                Expression<Func<TP_CourseTimeHours, bool>> exps = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE && x.CoursesTimeID == CourseTimeHoursView.CoursesTimeID&&x.Years==CourseTimeHoursView.Year&&x.CourseTimeHoursID!=CourseTimeHoursView.CourseTimeHoursID);
                var query = CourseTimeHoursDAL.GetCoursesTimeQueryable(exp, exps).ToList();
                if(query.Count()>0)
                {
                    throw new Exception(CourseTimeHoursView.Year+"级在改时间段已存在请重新输入！");
                }
                if (CourseTimeHoursView.CourseTimeHoursID != null)
                {
                    TP_CourseTimeHours = new Entities.TP_CourseTimeHours();
                    TP_CourseTimeHours.CourseTimeHoursID = (Guid)CourseTimeHoursView.CourseTimeHoursID;
                    TP_CourseTimeHours.CoursesTimeID = CourseTimeHoursView.CoursesTimeID;
                    TP_CourseTimeHours.Hours = CourseTimeHoursView.Hours;
                    TP_CourseTimeHours.Years = CourseTimeHoursView.Year;
                    TP_CourseTimeHours.RecordStatus = (int)SYS_STATUS.USABLE;
                    UnitOfWork.Update(TP_CourseTimeHours);
                    SetNewStatus(TP_CourseTimeHours);
                }
                else
                {
                    TP_CourseTimeHours = new Entities.TP_CourseTimeHours();
                    TP_CourseTimeHours.CourseTimeHoursID = Guid.NewGuid();
                    TP_CourseTimeHours.CoursesTimeID = CourseTimeHoursView.CoursesTimeID;
                    TP_CourseTimeHours.Hours = CourseTimeHoursView.Hours;
                    TP_CourseTimeHours.Years = CourseTimeHoursView.Year;
                    TP_CourseTimeHours.RecordStatus = (int)SYS_STATUS.USABLE;
                    UnitOfWork.Add(TP_CourseTimeHours);
                    SetNewStatus(TP_CourseTimeHours);
                }
            }
            catch (Exception)
            {

                throw;
            }
            this.UnitOfWork.Commit();
        }

        //删除
        public void Delete(List<Guid> id) {
            UnitOfWork.Remove<TP_CourseTimeHours>(x => id.Contains(x.CourseTimeHoursID));
            UnitOfWork.Commit();
        }
    }
}