package cn.lili.modules.lmk.service.impl;

import cn.lili.base.Result;
import cn.lili.common.enums.ActivityCoverTypeEnum;
import cn.lili.common.enums.ActivityStatusEnum;
import cn.lili.modules.lmk.domain.entity.Activity;
import cn.lili.modules.lmk.domain.form.ActivityForm;
import cn.lili.modules.lmk.domain.query.ActivityMembersQuery;
import cn.lili.modules.lmk.domain.query.ActivityQuery;
import cn.lili.modules.lmk.domain.vo.ActivityVO;
import cn.lili.modules.lmk.mapper.ActivityMapper;
import cn.lili.modules.lmk.mapper.ActivityReportMapper;
import cn.lili.modules.lmk.service.ActivityService;
import cn.lili.modules.lmk.service.LmkFileService;
import cn.lili.modules.lmk.service.MyActivityService;
import cn.lili.modules.member.entity.vo.MemberVO;
import cn.lili.utils.COSUtil;
import cn.lili.utils.PageUtil;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import io.micrometer.core.instrument.util.StringUtils;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;
import org.springframework.web.multipart.MultipartFile;

import java.util.List;
import java.util.stream.Collectors;

@Service
@RequiredArgsConstructor
public class ActivityServiceImpl extends ServiceImpl<ActivityMapper, Activity> implements ActivityService {

    private final LmkFileService lmkFileService;

    private final MyActivityService activityService;

    private final ActivityReportMapper activityReportMapper;
    private final COSUtil cOSUtil;

    @Override
    public Result add(ActivityForm form) {
        Activity entity = ActivityForm.getEntityByForm(form, null);
        //默认新增活动为
        entity.setStatus(ActivityStatusEnum.NOT_STARTED.getType());
        //默认不为推荐
        entity.setRecommend(false);
        //默认未发布
        entity.setPublish(false);

        baseMapper.insert(entity);
        return Result.ok("添加成功");
    }

    @Override
    public Result update(ActivityForm form) {

        Activity entity = baseMapper.selectById(form.getId());
        //判断修改前的封面类型是否为文本，文本不需要删除文件
        if (!ActivityCoverTypeEnum.TEXT.getType().equals(entity.getCoverType())){
            //判断路径是否改变
            if (!form.getCover().equals(entity.getCover())) {
                //删除云服务器中旧的图片
                lmkFileService.deleteObject(entity.getCover());
            }

        }
        // 为空抛IllegalArgumentException，做全局异常处理
        Assert.notNull(entity, "记录不存在");
        BeanUtils.copyProperties(form, entity);

        baseMapper.updateById(entity);
        return Result.ok("修改成功");
    }

    @Override
    public Result remove(List<String> ids) {
        baseMapper.deleteBatchIds(ids);
        return Result.ok("删除成功");
    }

    @Override
    public Result removeById(String id) {
        //TODO 先判断活动是否有报名人员
        //有的话不可删除 联中间表查询
        //删除，同时判断该对象的封面是否存在 ，存在则在云服务器删除
        ActivityVO vo = baseMapper.getById(id);
        if (StringUtils.isNotEmpty(vo.getCover())){
            lmkFileService.deleteObject(vo.getCover());
        }
        baseMapper.deleteById(id);

        return Result.ok("删除成功");
    }

    @Override
    public Result page(ActivityQuery query) {
        IPage<ActivityVO> page = PageUtil.getPage(query, ActivityVO.class);

        baseMapper.getPage(page, query);
        for (ActivityVO vo : page.getRecords()) {
            if (!ActivityCoverTypeEnum.TEXT.getType().equals(vo.getCoverType())){
                vo.setUrl(cOSUtil.getPreviewUrl(vo.getCover()));
            }
        }
        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }

    @Override
    public Result detail(String id) {
        ActivityVO vo = baseMapper.getById(id);
        Assert.notNull(vo, "记录不存在");
        return Result.ok().data(vo);
    }
    @Override
    public Result getCanReportPage(ActivityQuery query){
        IPage<ActivityVO> page = PageUtil.getPage(query, ActivityVO.class);
        //已发布的活动
        baseMapper.getCanReportPage(page, query);

        for(ActivityVO activityVO : page.getRecords()){
            activityVO.setUrl(cOSUtil.getPreviewUrl(activityVO.getCover()));
        }

        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }

    @Override
    public Result all() {

        List<Activity> entities = baseMapper.selectList(null);
        List<ActivityVO> vos = entities.stream()
                .map(entity -> ActivityVO.getVoByEntity(entity, null))
                .collect(Collectors.toList());
        List<ActivityVO> reportActivityVo =vos.stream().filter(item -> ActivityStatusEnum.REPORT.getType().equals(item.getStatus())).collect(Collectors.toList());
        return Result.ok().data(reportActivityVo);
    }

    @Override
    public Result uploadObject(MultipartFile file) {
        return lmkFileService.uploadObject(file);
    }

    @Override
    public String getPreviewUrl(String fileKey) {
        return lmkFileService.getPreviewUrl(fileKey);
    }

    @Override
    public Result deleteObject(String fileKey) {
        return lmkFileService.deleteObject(fileKey);
    }

    @Override
    public Result activityChangeStatus(ActivityForm form) {
        Activity entity = baseMapper.selectById(form.getId());
        entity.setPublish(form.getPublish());
        if (!form.getPublish()){
            //下架判断是否有人员报名，有报名的话禁止提醒无法下架
            ActivityMembersQuery activityMembersQuery = new ActivityMembersQuery();
            activityMembersQuery.setId(form.getId());
            if((long)activityMembersPage(activityMembersQuery).get("total") > 0){
                return Result.error("该活动无法下架，已存在报名人员");
            }

        }
        baseMapper.updateById(entity);
        return Result.ok();
    }

    @Override
    public Result activityChangeRecommend(ActivityForm form) {
        Activity entity = baseMapper.selectById(form.getId());
        entity.setRecommend(form.getRecommend());
        baseMapper.updateById(entity);
        return Result.ok();
    }

    @Override
    public Result activityMembersPage(ActivityMembersQuery query) {
        IPage<MemberVO> page = PageUtil.getPage(query, MemberVO.class);
        baseMapper.getMembers(page, query);
        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }


}