feat(chat): 新增删除聊天记录接口并支持逻辑删除

src/main/java/com/yolo/keyborad/controller/ChatController.java

@@ -9,6 +9,7 @@ import com.yolo.keyborad.common.ErrorCode;
 import com.yolo.keyborad.common.ResultUtils;
 import com.yolo.keyborad.exception.BusinessException;
 import com.yolo.keyborad.mapper.QdrantPayloadMapper;
+import com.yolo.keyborad.model.dto.chat.ChatHistoryDeleteReq;
 import com.yolo.keyborad.model.dto.chat.ChatHistoryPageReq;
 import com.yolo.keyborad.model.dto.chat.ChatMessageReq;
 import com.yolo.keyborad.model.dto.chat.ChatReq;
@@ -19,7 +20,6 @@ import com.yolo.keyborad.model.vo.AudioTaskVO;
 import com.yolo.keyborad.model.vo.ChatMessageHistoryVO;
 import com.yolo.keyborad.model.vo.ChatMessageVO;
 import com.yolo.keyborad.model.vo.ChatSessionVO;
-import com.yolo.keyborad.model.vo.ChatVoiceVO;
 import com.yolo.keyborad.service.ChatService;
 import com.yolo.keyborad.service.KeyboardAiChatMessageService;
 import com.yolo.keyborad.service.KeyboardAiChatSessionService;
@@ -138,6 +138,18 @@ public class ChatController {
         return ResultUtils.success(result);
     }
 
+    @PostMapping("/history/delete")
+    @Operation(summary = "删除聊天记录", description = "根据聊天记录ID逻辑删除聊天消息")
+    public BaseResponse<Boolean> deleteHistory(@RequestBody ChatHistoryDeleteReq req) {
+        if (req == null || req.getId() == null) {
+            throw new BusinessException(ErrorCode.PARAMS_ERROR, "聊天记录ID不能为空");
+        }
+
+        Long userId = StpUtil.getLoginIdAsLong();
+        aiChatMessageService.deleteMessageById(userId, req.getId());
+        return ResultUtils.success(true);
+    }
+
     @PostMapping("/session/reset")
     @Operation(summary = "重置会话", description = "重置与AI角色的聊天会话，将当前会话设为不活跃并创建新会话，后续聊天记录将绑定到新会话")
     public BaseResponse<ChatSessionVO> resetSession(@RequestBody SessionResetReq req) {

src/main/java/com/yolo/keyborad/model/dto/chat/ChatHistoryDeleteReq.java

@@ -0,0 +1,17 @@
+package com.yolo.keyborad.model.dto.chat;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+/*
+ * @author: ziin
+ * @date: 2026/2/4
+ */
+@Data
+@Schema(description = "删除聊天记录请求")
+public class ChatHistoryDeleteReq {
+
+    @Schema(description = "聊天记录ID", requiredMode = Schema.RequiredMode.REQUIRED)
+    private Long id;
+}
+

src/main/java/com/yolo/keyborad/model/entity/KeyboardAiChatMessage.java

@@ -79,4 +79,8 @@ public class KeyboardAiChatMessage {
     @TableField(value = "session_id")
     @Schema(description = "会话Id")
     private Long sessionId;
+
+    @TableField(value = "deleted")
+    @Schema(description = "是否删除")
+    private Boolean deleted;
 }

src/main/java/com/yolo/keyborad/service/KeyboardAiChatMessageService.java

@@ -41,4 +41,12 @@ public interface KeyboardAiChatMessageService extends IService<KeyboardAiChatMes
      * @return 聊过天的AI角色ID列表（按最近聊天时间倒序）
      */
     List<Long> getChattedCompanionIds(Long userId);
+
+    /**
+     * 根据聊天记录ID逻辑删除消息
+     *
+     * @param userId    当前用户ID
+     * @param messageId 聊天记录ID
+     */
+    void deleteMessageById(Long userId, Long messageId);
 }

src/main/java/com/yolo/keyborad/service/impl/KeyboardAiChatMessageServiceImpl.java

@@ -6,6 +6,8 @@ import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.yolo.keyborad.mapper.KeyboardAiChatMessageMapper;
+import com.yolo.keyborad.common.ErrorCode;
+import com.yolo.keyborad.exception.BusinessException;
 import com.yolo.keyborad.model.entity.KeyboardAiChatMessage;
 import com.yolo.keyborad.model.entity.KeyboardAiChatSession;
 import com.yolo.keyborad.model.vo.ChatMessageHistoryVO;
@@ -46,6 +48,7 @@ public class KeyboardAiChatMessageServiceImpl extends ServiceImpl<KeyboardAiChat
         queryWrapper.eq(KeyboardAiChatMessage::getUserId, userId)
                 .eq(KeyboardAiChatMessage::getCompanionId, companionId)
                 .eq(KeyboardAiChatMessage::getSessionId, activeSession.getId())
+                .eq(KeyboardAiChatMessage::getDeleted,false)
                 .orderByDesc(KeyboardAiChatMessage::getCreatedAt)
                 .orderByDesc(KeyboardAiChatMessage::getId);
         IPage<KeyboardAiChatMessage> entityPage = this.page(page, queryWrapper);
@@ -110,4 +113,23 @@ public class KeyboardAiChatMessageServiceImpl extends ServiceImpl<KeyboardAiChat
                 .distinct()
                 .collect(java.util.stream.Collectors.toList());
     }
+
+    @Override
+    public void deleteMessageById(Long userId, Long messageId) {
+        KeyboardAiChatMessage message = this.getById(messageId);
+        if (message == null || Boolean.TRUE.equals(message.getDeleted())) {
+            throw new BusinessException(ErrorCode.NOT_FOUND_ERROR, "聊天记录不存在");
+        }
+        if (!userId.equals(message.getUserId())) {
+            throw new BusinessException(ErrorCode.NO_AUTH_ERROR);
+        }
+
+        KeyboardAiChatMessage update = new KeyboardAiChatMessage();
+        update.setId(messageId);
+        update.setDeleted(true);
+        boolean success = this.updateById(update);
+        if (!success) {
+            throw new BusinessException(ErrorCode.OPERATION_ERROR, "删除失败");
+        }
+    }
 }