feat(chat): 实现联网搜索与对话管理功能

- 新增 OkHttp 客户端配置及依赖
- 添加 SearXNG 搜索引擎集成配置
- 创建基础分页查询类 BasePageQuery
- 实现网络搜索增强顾问 NetworkSearchAdvisor
- 增加聊天历史消息和对话的分页查询接口
- 添加对话摘要重命名与删除功能
- 配置 MyBatis Plus 分页插件支持
- 引入 Jsoup用于网页内容解析
- 新增 Hutool 工具库依赖
- 实现搜索结果内容抓取服务
- 添加搜索结果 DTO 和相关服务接口
- 扩展响应码枚举支持对话不存在情况
- 新增多个 VO 类用于请求和响应数据传输

src/main/java/com/hanserwei/airobot/service/impl/ChatServiceImpl.java

@@ -1,23 +1,36 @@
 package com.hanserwei.airobot.service.impl;
 
+import cn.hutool.core.collection.CollUtil;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.hanserwei.airobot.domain.dos.ChatDO;
+import com.hanserwei.airobot.domain.dos.ChatMessageDO;
 import com.hanserwei.airobot.domain.mapper.ChatMapper;
-import com.hanserwei.airobot.model.vo.chat.NewChatReqVO;
-import com.hanserwei.airobot.model.vo.chat.NewChatRspVO;
+import com.hanserwei.airobot.domain.mapper.ChatMessageMapper;
+import com.hanserwei.airobot.enums.ResponseCodeEnum;
+import com.hanserwei.airobot.exception.BizException;
+import com.hanserwei.airobot.model.vo.chat.*;
 import com.hanserwei.airobot.service.ChatService;
+import com.hanserwei.airobot.utils.PageResponse;
 import com.hanserwei.airobot.utils.Response;
 import com.hanserwei.airobot.utils.StringUtil;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.time.LocalDateTime;
+import java.util.Comparator;
+import java.util.List;
 import java.util.UUID;
+import java.util.stream.Collectors;
 
 @Service
 public class ChatServiceImpl implements ChatService {
 
     @Resource
     private ChatMapper chatMapper;
+    @Resource
+    private ChatMessageMapper chatMessageMapper;
 
     @Override
     public Response<NewChatRspVO> newChat(NewChatReqVO newChatReqVO) {
@@ -42,4 +55,100 @@ public class ChatServiceImpl implements ChatService {
                 .summary(summary)
                 .build());
     }
+
+    @Override
+    public PageResponse<FindChatHistoryMessagePageListRspVO> findChatHistoryMessagePageList(FindChatHistoryMessagePageListReqVO findChatHistoryMessagePageListReqVO) {
+        // 获取当前页、以及每页需要展示的数据数量
+        Long current = findChatHistoryMessagePageListReqVO.getCurrent();
+        Long size = findChatHistoryMessagePageListReqVO.getSize();
+        String chatId = findChatHistoryMessagePageListReqVO.getChatId();
+
+        // 执行分页查询
+        Page<ChatMessageDO> chatMessageDOPage = chatMessageMapper.selectPageList(current, size, chatId);
+
+        List<ChatMessageDO> chatMessageDOS = chatMessageDOPage.getRecords();
+        // DO 转 VO
+        List<FindChatHistoryMessagePageListRspVO> vos = null;
+        if (CollUtil.isNotEmpty(chatMessageDOS)) {
+            vos = chatMessageDOS.stream()
+                    .map(chatMessageDO -> FindChatHistoryMessagePageListRspVO.builder() // 构建返参 VO 实体类
+                            .id(chatMessageDO.getId())
+                            .chatId(chatMessageDO.getChatUuid())
+                            .content(chatMessageDO.getContent())
+                            .role(chatMessageDO.getRole())
+                            .createTime(chatMessageDO.getCreateTime())
+                            .build())
+                    // 升序排序
+                    .sorted(Comparator.comparing(FindChatHistoryMessagePageListRspVO::getCreateTime))
+                    .collect(Collectors.toList());
+        }
+
+        return PageResponse.success(chatMessageDOPage, vos);
+    }
+
+    @Override
+    public PageResponse<FindChatHistoryPageListRspVO> findChatHistoryPageList(FindChatHistoryPageListReqVO findChatHistoryPageListReqVO) {
+        // 获取当前页、以及每页需要展示的数据数量
+        Long current = findChatHistoryPageListReqVO.getCurrent();
+        Long size = findChatHistoryPageListReqVO.getSize();
+
+        // 执行分页查询
+        Page<ChatDO> chatDOPage = chatMapper.selectPageList(current, size);
+
+        // 获取查询结果
+        List<ChatDO> chatDOS = chatDOPage.getRecords();
+
+        // DO 转 VO
+        List<FindChatHistoryPageListRspVO> vos = null;
+        if (CollUtil.isNotEmpty(chatDOS)) {
+            vos = chatDOS.stream()
+                    .map(chatDO -> FindChatHistoryPageListRspVO.builder() // 构建返参 VO
+                            .id(chatDO.getId())
+                            .uuid(chatDO.getUuid())
+                            .summary(chatDO.getSummary())
+                            .updateTime(chatDO.getUpdateTime())
+                            .build())
+                    .collect(Collectors.toList());
+        }
+
+        return PageResponse.success(chatDOPage, vos);
+    }
+
+    @Override
+    public Response<?> renameChatSummary(RenameChatReqVO renameChatReqVO) {
+        // 对话 ID
+        Long chatId = renameChatReqVO.getId();
+        // 摘要
+        String summary = renameChatReqVO.getSummary();
+
+        // 根据主键 ID 更新摘要
+        chatMapper.updateById(ChatDO.builder()
+                .id(chatId)
+                .summary(summary)
+                .build());
+
+        return Response.success();
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Response<?> deleteChat(DeleteChatReqVO deleteChatReqVO) {
+        // 对话 UUID
+        String uuid = deleteChatReqVO.getUuid();
+
+        // 删除对话
+        int count = chatMapper.delete(Wrappers.<ChatDO>lambdaQuery()
+                .eq(ChatDO::getUuid, uuid));
+
+        // 如果删除操作影响的行数为 0，说明想要删除的对话不存在
+        if (count == 0) {
+            throw new BizException(ResponseCodeEnum.CHAT_NOT_EXISTED);
+        }
+
+        // 批量删除对话下的所有消息
+        chatMessageMapper.delete(Wrappers.<ChatMessageDO>lambdaQuery()
+                .eq(ChatMessageDO::getChatUuid, uuid));
+
+        return Response.success();
+    }
 }