Soulter
142 lines
4.5 KiB
Python
142 lines
4.5 KiB
Python
from __future__ import annotations
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import enum
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import heapq
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from dataclasses import dataclass, field
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from typing import Awaitable, List, Dict, TypeVar, Generic
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from .filter import HandlerFilter
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from .star import star_map
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T = TypeVar("T", bound="StarHandlerMetadata")
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class StarHandlerRegistry(Generic[T]):
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"""用于存储所有的 Star Handler"""
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star_handlers_map: Dict[str, StarHandlerMetadata] = {}
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"""用于快速查找。key 是 handler_full_name"""
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_handlers = []
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def append(self, handler: StarHandlerMetadata):
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"""添加一个 Handler"""
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if "priority" not in handler.extras_configs:
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handler.extras_configs["priority"] = 0
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heapq.heappush(self._handlers, (-handler.extras_configs["priority"], handler))
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self.star_handlers_map[handler.handler_full_name] = handler
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def _print_handlers(self):
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"""打印所有的 Handler"""
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for _, handler in self._handlers:
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print(handler.handler_full_name)
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def get_handlers_by_event_type(
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self, event_type: EventType, only_activated=True
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) -> List[StarHandlerMetadata]:
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"""通过事件类型获取 Handler"""
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handlers = [
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handler
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for _, handler in self._handlers
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if handler.event_type == event_type
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and (
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not only_activated
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or (
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star_map[handler.handler_module_path]
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and star_map[handler.handler_module_path].activated
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)
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)
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]
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return handlers
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def get_handler_by_full_name(self, full_name: str) -> StarHandlerMetadata:
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"""通过 Handler 的全名获取 Handler"""
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return self.star_handlers_map.get(full_name, None)
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def get_handlers_by_module_name(
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self, module_name: str
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) -> List[StarHandlerMetadata]:
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"""通过模块名获取 Handler"""
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return [
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handler
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for _, handler in self._handlers
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if handler.handler_module_path == module_name
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]
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def clear(self):
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"""清空所有的 Handler"""
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self.star_handlers_map.clear()
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self._handlers.clear()
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def remove(self, handler: StarHandlerMetadata):
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"""删除一个 Handler"""
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# self._handlers.remove(handler)
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for i, h in enumerate(self._handlers):
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if h[1] == handler:
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self._handlers.pop(i)
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break
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try:
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del self.star_handlers_map[handler.handler_full_name]
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except KeyError:
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pass
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def __iter__(self):
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"""使 StarHandlerRegistry 支持迭代"""
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return (handler for _, handler in self._handlers)
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def __len__(self):
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"""返回 Handler 的数量"""
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return len(self._handlers)
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star_handlers_registry = StarHandlerRegistry()
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class EventType(enum.Enum):
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"""表示一个 AstrBot 内部事件的类型。如适配器消息事件、LLM 请求事件、发送消息前的事件等
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用于对 Handler 的职能分组。
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"""
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OnAstrBotLoadedEvent = enum.auto() # AstrBot 加载完成
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AdapterMessageEvent = enum.auto() # 收到适配器发来的消息
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OnLLMRequestEvent = enum.auto() # 收到 LLM 请求（可以是用户也可以是插件）
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OnLLMResponseEvent = enum.auto() # LLM 响应后
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OnDecoratingResultEvent = enum.auto() # 发送消息前
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OnCallingFuncToolEvent = enum.auto() # 调用函数工具
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OnAfterMessageSentEvent = enum.auto() # 发送消息后
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@dataclass
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class StarHandlerMetadata:
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"""描述一个 Star 所注册的某一个 Handler。"""
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event_type: EventType
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"""Handler 的事件类型"""
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handler_full_name: str
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'''格式为 f"{handler.__module__}_{handler.__name__}"'''
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handler_name: str
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"""Handler 的名字，也就是方法名"""
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handler_module_path: str
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"""Handler 所在的模块路径。"""
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handler: Awaitable
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"""Handler 的函数对象，应当是一个异步函数"""
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event_filters: List[HandlerFilter]
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"""一个适配器消息事件过滤器，用于描述这个 Handler 能够处理、应该处理的适配器消息事件"""
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desc: str = ""
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"""Handler 的描述信息"""
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extras_configs: dict = field(default_factory=dict)
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"""插件注册的一些其他的信息, 如 priority 等"""
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def __lt__(self, other: StarHandlerMetadata):
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"""定义小于运算符以支持优先队列"""
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return self.extras_configs.get("priority", 0) < other.extras_configs.get(
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"priority", 0
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)
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