using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Transactions;
using Bowin.Common.Linq;
using Bowin.Common.Linq.Entity;
using Bowin.Common.Utility;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.ViewModel.StudentManage.StudentProfile;
using EMIS.DataLogic.StudentManage.StudentProfile;

namespace EMIS.CommonLogic.StudentManage.StudentProfile
{
    public class StudentPostPracticeServices : BaseServices, IStudentPostPracticeServices
    {
        public Lazy<StudentPostPracticeDAL> StudentPostPracticeDAL { get; set; }

        /// <summary>
        /// 查询对应的学生顶岗实习信息StudentPostPracticeView
        /// </summary>
        /// <param name="userID"></param>
        /// <param name="rowCount"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        public IGridResultSet<StudentPostPracticeView> GetStudentPostPracticeViewGrid(Guid userID, int rowCount, int? pageIndex, int? pageSize)
        {
            Expression<Func<CF_StudentPostPractice, bool>> expStudentPostPractice = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);
            expStudentPostPractice = expStudentPostPractice.And(x => x.UserID == userID);
            var result = this.StudentPostPracticeDAL.Value.GetStudentPostPracticeViewQueryable(expStudentPostPractice).Take(rowCount).ToList();

            var newRowCount = rowCount - result.Count;
            for (var i = 0; i < newRowCount; i++)
            {
                result.Add(new StudentPostPracticeView
                {
                    StudentPostPracticeID = Guid.NewGuid(),
                    UserID = userID
                });
            }

            return new GridResultSet<StudentPostPracticeView> { rows = result, total = result.Count };
        }

        /// <summary>
        /// 编辑
        /// </summary>
        /// <param name="userID"></param>
        /// <param name="studentPostPracticeViewList"></param>
        public void StudentPostPracticeEdit(Guid userID, IList<StudentPostPracticeView> studentPostPracticeViewList)
        {
            UnitOfWork.Remove<CF_StudentPostPractice>(x => x.UserID == userID);
            var studentPostPracticeList = new List<CF_StudentPostPractice>();
            for (int i = 1; i <= studentPostPracticeViewList.Count; i++)
            {
                var studentPostPractice = studentPostPracticeViewList[i - 1];
                var newStudentPostPractice = new CF_StudentPostPractice
                {
                    StudentPostPracticeID = Guid.NewGuid(),
                    UserID = userID,
                    PracticePlace = studentPostPractice.PracticePlace,
                    StartYear = studentPostPractice.StartYear,
                    StartMonth = studentPostPractice.StartMonth,
                    EndYear = studentPostPractice.EndYear,
                    EndMonth = studentPostPractice.EndMonth,
                    PracticeMentor = studentPostPractice.PracticeMentor,
                    PracticeContent = studentPostPractice.PracticeContent,
                    SelfAppraise = studentPostPractice.SelfAppraise
                };
                this.SetNewStatus(newStudentPostPractice);
                studentPostPracticeList.Add(newStudentPostPractice);
            }

            UnitOfWork.AddRange(studentPostPracticeList);
            UnitOfWork.Commit();
        }

    }
}