package com.mindskip.xzs.service.impl;

import com.mindskip.xzs.domain.VideoStudent;
import com.mindskip.xzs.domain.vo.VideoStudentDto;
import com.mindskip.xzs.domain.vo.VideoStudentListVO;
import com.mindskip.xzs.domain.vo.VideoStudentVO;
import com.mindskip.xzs.repository.VideoMapper;
import com.mindskip.xzs.service.IVideoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;

@Service
public class VideoServiceImpl implements IVideoService {

    @Autowired
    private VideoMapper videoMapper;

    @Override
    public void save(VideoStudentDto videoStudentVO) {
        List<Integer> stuIds = videoStudentVO.getStuIds();
        for (Integer stuId : stuIds) {
            VideoStudent record = new VideoStudent();
            Calendar calendar = Calendar.getInstance();
            Date start = calendar.getTime();
            calendar.add(Calendar.MINUTE, 10); // 加上十分钟
            Date end = calendar.getTime();
            record.setRoomName(videoStudentVO.getRoomName());
            record.setStart(start);
            record.setEnd(end);
            record.setStuId(stuId);
            videoMapper.insert(record);
        }
    }

    @Override
    public void clear() {
        videoMapper.clear();
    }

    @Override
    public VideoStudentVO showButton(Integer id) {
        List<VideoStudent> all = videoMapper.getAll();
        List<Integer> collect = all.stream().map(new Function<VideoStudent, Integer>() {
            @Override
            public Integer apply(VideoStudent videoStudent) {
                return videoStudent.getStuId();
            }
        }).collect(Collectors.toList());
        VideoStudentVO videoStudentVO = new VideoStudentVO();
        videoStudentVO.setFlag(collect.contains(id));
        videoStudentVO.setRoomName(all.get(0).getRoomName());
        return videoStudentVO;
    }

    @Override
    public List<VideoStudentListVO> getStudentVideoList() {
        List<String> studentList = videoMapper.getStudentList();
        ArrayList<VideoStudentListVO> list = new ArrayList<>();
        for (String s : studentList) {
            VideoStudentListVO videoStudentListVO = new VideoStudentListVO();
            videoStudentListVO.setCreateTime(new Date());
            videoStudentListVO.setTeacherName(s);
            videoStudentListVO.setRoomName(s);
            list.add(videoStudentListVO);
        }
        return list;
    }
}