重构服务模块，优化消息处理逻辑，移除冗余功能，更新数据模型适配

src/services/config_service.py

@@ -1,66 +0,0 @@
-"""配置服务模块
-
-提供配置读取的核心功能。
-"""
-
-from typing import Any
-
-from src.common.logger import get_logger
-from src.config.config import global_config
-
-logger = get_logger("config_service")
-
-
-def get_global_config(key: str, default: Any = None) -> Any:
-    """
-    安全地从全局配置中获取一个值。
-
-    Args:
-        key: 命名空间式配置键名，使用嵌套访问，如 "section.subsection.key"，大小写敏感
-        default: 如果配置不存在时返回的默认值
-
-    Returns:
-        Any: 配置值或默认值
-    """
-    keys = key.split(".")
-    current = global_config
-
-    try:
-        for k in keys:
-            if hasattr(current, k):
-                current = getattr(current, k)
-            else:
-                raise KeyError(f"配置中不存在子空间或键 '{k}'")
-        return current
-    except Exception as e:
-        logger.warning(f"[ConfigService] 获取全局配置 {key} 失败: {e}")
-        return default
-
-
-def get_plugin_config(plugin_config: dict, key: str, default: Any = None) -> Any:
-    """
-    从插件配置中获取值，支持嵌套键访问
-
-    Args:
-        plugin_config: 插件配置字典
-        key: 配置键名，支持嵌套访问如 "section.subsection.key"，大小写敏感
-        default: 如果配置不存在时返回的默认值
-
-    Returns:
-        Any: 配置值或默认值
-    """
-    keys = key.split(".")
-    current = plugin_config
-
-    try:
-        for k in keys:
-            if isinstance(current, dict) and k in current:
-                current = current[k]
-            elif hasattr(current, k):
-                current = getattr(current, k)
-            else:
-                raise KeyError(f"配置中不存在子空间或键 '{k}'")
-        return current
-    except Exception as e:
-        logger.warning(f"[ConfigService] 获取插件配置 {key} 失败: {e}")
-        return default

src/services/message_service.py

@@ -154,22 +154,6 @@ def get_messages_before_time_in_chat(
     return _normalize_messages(messages)
 
 
-def get_recent_messages(
-    chat_id: str, hours: float = 24.0, limit: int = 100, limit_mode: str = "latest", filter_mai: bool = False
-) -> List[SessionMessage]:
-    if not isinstance(hours, (int, float)) or hours < 0:
-        raise ValueError("hours 不能是负数")
-    if not isinstance(limit, int) or limit < 0:
-        raise ValueError("limit 必须是非负整数")
-    if not chat_id:
-        raise ValueError("chat_id 不能为空")
-    if not isinstance(chat_id, str):
-        raise ValueError("chat_id 必须是字符串类型")
-    now = time.time()
-    start_time = now - hours * 3600
-    return get_messages_by_time_in_chat(chat_id, start_time, now, limit, limit_mode, filter_mai)
-
-
 # =============================================================================
 # 消息计数函数
 # =============================================================================
@@ -221,14 +205,14 @@ def build_readable_messages(
             line = f"{line[:200]}......（内容太长了）"
         lines.append(line)
     if show_actions and normalized_messages:
-        action_lines = build_readable_actions(
+        if action_lines := ActionUtils.build_readable_action_records(
             get_actions_by_timestamp_with_chat(
                 normalized_messages[0].session_id,
                 normalized_messages[0].timestamp.timestamp(),
                 normalized_messages[-1].timestamp.timestamp(),
-            )
-        )
-        if action_lines:
+            ),
+            "relative",
+        ):
             lines.append(action_lines)
     return "\n".join(lines)
 
@@ -260,19 +244,24 @@ def build_readable_messages_with_id(
         lines.append(line)
         message_id_list.append((message.message_id, message))
     if show_actions and normalized_messages:
-        action_lines = build_readable_actions(
+        if action_lines := ActionUtils.build_readable_action_records(
             get_actions_by_timestamp_with_chat(
                 normalized_messages[0].session_id,
                 normalized_messages[0].timestamp.timestamp(),
                 normalized_messages[-1].timestamp.timestamp(),
-            )
-        )
-        if action_lines:
+            ),
+            "relative",
+        ):
             lines.append(action_lines)
     return "\n".join(lines), message_id_list
 
 
-def get_actions_by_timestamp_with_chat(chat_id: str, timestamp_start: float, timestamp_end: float) -> List[MaiActionRecord]:
+def get_actions_by_timestamp_with_chat(
+    chat_id: str,
+    timestamp_start: float,
+    timestamp_end: float,
+    limit: Optional[int] = None,
+) -> List[MaiActionRecord]:
     with get_db_session() as session:
         statement = (
             select(ActionRecord)
@@ -281,13 +270,11 @@ def get_actions_by_timestamp_with_chat(chat_id: str, timestamp_start: float, tim
             .where(col(ActionRecord.timestamp) <= datetime.fromtimestamp(timestamp_end))
             .order_by(col(ActionRecord.timestamp))
         )
+        if limit is not None:
+            statement = statement.limit(limit)
         return [MaiActionRecord.from_db_instance(item) for item in session.exec(statement).all()]
 
 
-def build_readable_actions(actions: List[MaiActionRecord], timestamp_mode: str = "relative") -> str:
-    return ActionUtils.build_readable_action_records(actions, timestamp_mode)
-
-
 def replace_user_references(text: str, platform: str, replace_bot_name: bool = False) -> str:
     del platform
     if not text:
@@ -312,9 +299,4 @@ def translate_pid_to_description(pid: str) -> str:
             else None
         )
         image = session.exec(statement).first() if statement is not None else None
-    description = ""
-    if image and image.description and image.description.strip():
-        description = image.description.strip()
-    else:
-        description = "[图片]"
-    return description
+    return image.description.strip() if image and image.description and image.description.strip() else "[图片]"

src/services/send_service.py

@@ -4,9 +4,9 @@
 提供发送各种类型消息的核心功能。
 """
 
-import traceback
 import time
-from typing import Optional, Union, Dict, List, TYPE_CHECKING
+import traceback
+from typing import Dict, List, Optional, TYPE_CHECKING
 
 from maim_message import BaseMessageInfo, GroupInfo as MaimGroupInfo, MessageBase, Seg, UserInfo as MaimUserInfo
 
@@ -61,7 +61,7 @@ async def _send_to_target(
 
         anchor_message: Optional[MaiMessage] = None
         if reply_message:
-            anchor_message = db_message_to_mai_message(reply_message)
+            anchor_message = reply_message.deepcopy()
             if anchor_message:
                 logger.debug(
                     f"[SendService] 找到匹配的回复消息，发送者: {anchor_message.message_info.user_info.user_id}"
@@ -127,11 +127,6 @@ async def _send_to_target(
         return False
 
 
-def db_message_to_mai_message(message_obj: "SessionMessage") -> Optional[MaiMessage]:
-    """将数据库消息重建为 MaiMessage 对象，用于回复引用。"""
-    return message_obj.deepcopy()
-
-
 # =============================================================================
 # 公共函数 - 预定义类型的发送函数
 # =============================================================================
@@ -197,23 +192,6 @@ async def image_to_stream(
     )
 
 
-async def command_to_stream(
-    command: Union[str, dict],
-    stream_id: str,
-    storage_message: bool = True,
-    display_message: str = "",
-) -> bool:
-    """向指定流发送命令"""
-    return await _send_to_target(
-        message_segment=Seg(type="command", data=command),  # type: ignore
-        stream_id=stream_id,
-        display_message=display_message,
-        typing=False,
-        storage_message=storage_message,
-        set_reply=False,
-    )
-
-
 async def custom_to_stream(
     message_type: str,
     content: str | Dict,