package com.ruoyi.system.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.common.basic.PageInfo;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.system.mapper.TSysProductIntroductionMapper;
import com.ruoyi.system.model.TSysEducationalInfo;
import com.ruoyi.system.model.TSysProductIntroduction;
import com.ruoyi.system.query.TSysProductIntroductionQuery;
import com.ruoyi.system.service.TSysProductIntroductionService;
import com.ruoyi.system.vo.TSysProductIntroductionVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.util.Comparator;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * <p>
 * 产品介绍 服务实现类
 * </p>
 *
 * @author xiaochen
 * @since 2025-08-20
 */
@Service
public class TSysProductIntroductionServiceImpl extends ServiceImpl<TSysProductIntroductionMapper, TSysProductIntroduction> implements TSysProductIntroductionService {

    @Autowired
    private RedisCache redisCache;

    @Override
    public PageInfo<TSysProductIntroductionVO> pageList(TSysProductIntroductionQuery query) {
        PageInfo<TSysProductIntroductionVO> pageInfo = new PageInfo<>(query.getPageNum(), query.getPageSize());
        List<TSysProductIntroductionVO> list = this.baseMapper.pageList(query);
        if (CollectionUtils.isEmpty(list)){
            return pageInfo;
        }
        if(Objects.nonNull(query.getRoleType()) && query.getRoleType() == 5){
            Long userId = query.getUserId();
            for (TSysProductIntroductionVO tSysProductIntroduction : list) {
                Set<Long> cacheSet = redisCache.getCacheSet(Constants.SYS_PRODUCT_CLICK_COUNT + tSysProductIntroduction.getId());
                if(cacheSet.contains(userId)){
                    tSysProductIntroduction.setIsView(true);
                }
            }
        }

        int index = (query.getPageNum() - 1) * query.getPageSize();
        pageInfo.setTotal(list.size());

        // 排序是否已读，未读的排前面,false排前面 true排后面
        // 排序：未读的排前面，已读的排后面
        list.sort(Comparator.comparing(TSysProductIntroductionVO::getIsView));

        if (pageInfo.getTotal() > index) {
            //此时存在数据
            if (pageInfo.getTotal() > index + query.getPageSize()) {
                list = list.subList(index, index + query.getPageSize());
            } else {
                list = list.subList(index, list.size());
            }
        }

        pageInfo.setRecords(list);
        return pageInfo;
    }
    @Override
    public PageInfo<TSysProductIntroduction> pageListApp(TSysProductIntroductionQuery query) {
        PageInfo<TSysProductIntroduction> pageInfo = new PageInfo<>(query.getPageNum(), query.getPageSize());
        List<TSysProductIntroduction> list = this.baseMapper.pageListApp(query,pageInfo);
        pageInfo.setRecords(list);
        return pageInfo;
    }
}