package com.ruoyi.system.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.common.basic.PageInfo;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.system.dto.TCommunityActivityDTO;
import com.ruoyi.system.mapper.TCommunityActivityMapper;
import com.ruoyi.system.mapper.TCommunityActivityRegistrationMapper;
import com.ruoyi.system.model.TCommunityActivity;
import com.ruoyi.system.model.TCommunityActivityRegistration;
import com.ruoyi.system.query.TCommunityActivityQuery;
import com.ruoyi.system.service.TCommunityActivityService;
import com.ruoyi.system.vo.TCommunityActivityVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

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

/**
 * <p>
 * 社区活动 服务实现类
 * </p>
 *
 * @author xiaochen
 * @since 2025-11-06
 */
@Service
public class TCommunityActivityServiceImpl extends ServiceImpl<TCommunityActivityMapper, TCommunityActivity> implements TCommunityActivityService {

    @Autowired
    private TCommunityActivityRegistrationMapper communityActivityRegistrationMapper;

    @Override
    public boolean isExit(TCommunityActivityDTO dto) {
        if(StringUtils.isNotEmpty(dto.getId())){
            // 修改
            return this.count(Wrappers.lambdaQuery(TCommunityActivity.class).ne(TCommunityActivity::getId, dto.getId()).eq(TCommunityActivity::getActivityTitle, dto.getActivityTitle())) > 0;
        }else {
            // 新增
            return this.count(Wrappers.lambdaQuery(TCommunityActivity.class).eq(TCommunityActivity::getActivityTitle, dto.getActivityTitle())) > 0;
        }
    }

    @Override
    public PageInfo<TCommunityActivityVO> pageList(TCommunityActivityQuery query) {
        PageInfo<TCommunityActivityVO> pageInfo = new PageInfo<>(query.getPageNum(), query.getPageSize());
        List<TCommunityActivityVO> list = this.baseMapper.pageList(query,pageInfo);
        if(CollectionUtils.isEmpty(list)){
            return pageInfo;
        }

        List<String> activityIds = list.stream().map(TCommunityActivity::getId).collect(Collectors.toList());
        List<TCommunityActivityRegistration> communityActivityRegistrationList = communityActivityRegistrationMapper.selectList(Wrappers.lambdaQuery(TCommunityActivityRegistration.class)
                .in(TCommunityActivityRegistration::getActivityId, activityIds));
        for (TCommunityActivityVO tCommunityActivityVO : list) {
            List<TCommunityActivityRegistration> communityActivityRegistrations = communityActivityRegistrationList.stream().filter(tCommunityActivityRegistration -> tCommunityActivityVO.getId().equals(tCommunityActivityRegistration.getActivityId())).collect(Collectors.toList());
            tCommunityActivityVO.setRegistrationCount(communityActivityRegistrations.size());
        }
        pageInfo.setRecords(list);
        return pageInfo;
    }
}