package com.emotionmuseum.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.emotionmuseum.entity.DiaryPost;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

/**
 * 日记Mapper接口
 * 
 * @author emotion-museum
 * @version 1.0.0
 * @since 2024-01-01
 */
@Mapper
public interface DiaryPostMapper extends BaseMapper<DiaryPost> {

    /**
     * 分页查询用户的日记
     */
    @Select("SELECT * FROM diary_post WHERE user_id = #{userId} AND deleted = 0 ORDER BY create_time DESC")
    IPage<DiaryPost> selectUserDiaries(Page<DiaryPost> page, @Param("userId") String userId);

    /**
     * 分页查询公开的日记
     */
    @Select("SELECT * FROM diary_post WHERE is_public = 1 AND status = 1 AND deleted = 0 ORDER BY create_time DESC")
    IPage<DiaryPost> selectPublicDiaries(Page<DiaryPost> page);

    /**
     * 根据情绪标签查询日记
     */
    @Select("SELECT * FROM diary_post WHERE emotion_tags LIKE CONCAT('%', #{emotionTag}, '%') AND is_public = 1 AND status = 1 AND deleted = 0 ORDER BY create_time DESC")
    IPage<DiaryPost> selectDiariesByEmotionTag(Page<DiaryPost> page, @Param("emotionTag") String emotionTag);

    /**
     * 统计用户的日记数量
     */
    @Select("SELECT COUNT(*) FROM diary_post WHERE user_id = #{userId} AND deleted = 0")
    int countByUserId(@Param("userId") String userId);

    /**
     * 统计公开日记数量
     */
    @Select("SELECT COUNT(*) FROM diary_post WHERE is_public = 1 AND status = 1 AND deleted = 0")
    int countPublicDiaries();
}