✨ 添加依赖注入支持，重构函数调用上下文，优化插件加载机制

nonebot_plugin_marshoai/plugin/func_call/caller.py

@@ -3,11 +3,13 @@ from typing import Any
 
 from nonebot import logger
 from nonebot.adapters import Bot, Event
+from nonebot.matcher import Matcher
 from nonebot.permission import Permission
 from nonebot.rule import Rule
 from nonebot.typing import T_State
 
 from ..typing import ASYNC_FUNCTION_CALL_FUNC, F
+from .models import SessionContext, SessionContextDepends
 from .utils import async_wrap, is_coroutine_callable
 
 _caller_data: dict[str, "Caller"] = {}
@@ -19,10 +21,15 @@ class Caller:
         self._description = description
         self.func: ASYNC_FUNCTION_CALL_FUNC | None = None
         self._parameters: dict[str, Any] = {}
-        """依赖注入的参数"""
-        self.bot: Bot | None = None
-        self.event: Event | None = None
-        self.state: T_State | None = None
+        """声明参数"""
+
+        self.di: SessionContextDepends = SessionContextDepends()
+        """依赖注入的参数信息"""
+
+        self.default: dict[str, Any] = {}
+        """默认值"""
+
+        self.ctx: SessionContext | None = None
 
         self._permission: Permission | None = None
         self._rule: Rule | None = None
@@ -36,14 +43,20 @@ class Caller:
         return self
 
     async def pre_check(self) -> tuple[bool, str]:
-        if self.bot is None or self.event is None:
+        if self.ctx is None:
+            return False, "上下文为空"
+        if self.ctx.bot is None or self.ctx.event is None:
             return False, "Context is None"
-        if self._permission and not await self._permission(self.bot, self.event):
+        if self._permission and not await self._permission(
+            self.ctx.bot, self.ctx.event
+        ):
             return False, "告诉用户 Permission Denied 权限不足"
 
-        if self.state is None:
+        if self.ctx.state is None:
             return False, "State is None"
-        if self._rule and not await self._rule(self.bot, self.event, self.state):
+        if self._rule and not await self._rule(
+            self.ctx.bot, self.ctx.event, self.ctx.state
+        ):
             return False, "告诉用户 Rule Denied 规则不匹配"
 
         return True, ""
@@ -86,6 +99,35 @@ class Caller:
             self._name = f"{module_name}-{func.__name__}"
         _caller_data[self._name] = self
 
+        # 检查函数签名，确定依赖注入参数
+        sig = inspect.signature(func)
+        for name, param in sig.parameters.items():
+            if issubclass(param.annotation, Event) or isinstance(
+                param.annotation, Event
+            ):
+                self.di.event = name
+
+            if issubclass(param.annotation, Caller) or isinstance(
+                param.annotation, Caller
+            ):
+                self.di.caller = name
+
+            if issubclass(param.annotation, Bot) or isinstance(param.annotation, Bot):
+                self.di.bot = name
+
+            if issubclass(param.annotation, Matcher) or isinstance(
+                param.annotation, Matcher
+            ):
+                self.di.matcher = name
+
+            if param.annotation == T_State:
+                self.di.state = name
+
+        # 检查默认值情况
+        for name, param in sig.parameters.items():
+            if param.default is not inspect.Parameter.empty:
+                self.default[name] = param.default
+
         if is_coroutine_callable(func):
             self.func = func  # type: ignore
         else:
@@ -126,11 +168,30 @@ class Caller:
             },
         }
 
-    def set_event(self, event: Event):
-        self.event = event
+    def set_ctx(self, ctx: SessionContext) -> None:
+        """设置依赖注入上下文
 
-    def set_bot(self, bot: Bot):
-        self.bot = bot
+        Args:
+            ctx (SessionContext): 依赖注入上下文
+        """
+        ctx.caller = self
+        self.ctx = ctx
+        for type_name, arg_name in self.di.model_dump().items():
+
+            if arg_name:
+                self.default[arg_name] = ctx.__getattribute__(type_name)
+
+    def with_ctx(self, ctx: SessionContext) -> "Caller":
+        """设置依赖注入上下文
+
+        Args:
+            ctx (SessionContext): 依赖注入上下文
+
+        Returns:
+            Caller: Caller对象
+        """
+        self.set_ctx(ctx)
+        return self
 
     async def call(self, *args: Any, **kwargs: Any) -> Any:
         """调用函数
@@ -145,28 +206,11 @@ class Caller:
 
         if self.func is None:
             raise ValueError("未注册函数对象")
-        sig = inspect.signature(self.func)
-        for name, param in sig.parameters.items():
-            if issubclass(param.annotation, Event) or isinstance(
-                param.annotation, Event
-            ):
-                kwargs[name] = self.event
 
-            if issubclass(param.annotation, Caller) or isinstance(
-                param.annotation, Caller
-            ):
-                kwargs[name] = self
-
-            if issubclass(param.annotation, Bot) or isinstance(param.annotation, Bot):
-                kwargs[name] = self.bot
-
-            if param.annotation == T_State:
-                kwargs[name] = self.state
-
-        # 检查形参是否有默认值或传入，若没有则用parameters中的默认值填充
-        for name, param in sig.parameters.items():
+        # 检查形参是否有默认值或传入，若没有则用default中的默认值填充
+        for name, value in self.default.items():
             if name not in kwargs:
-                kwargs[name] = self._parameters.get(name, param.default)
+                kwargs[name] = value
 
         return await self.func(*args, **kwargs)