nonebot2/packages/nonebot-adapter-mirai/nonebot/adapters/mirai/event/base.py
2021-02-11 17:29:16 +08:00

134 lines
3.6 KiB
Python

import json
from enum import Enum
from typing import Any, Dict, Optional, Type
from pydantic import BaseModel, Field, ValidationError
from typing_extensions import Literal
from nonebot.adapters import Event as BaseEvent
from nonebot.adapters import Message as BaseMessage
from nonebot.log import logger
from nonebot.typing import overrides
class UserPermission(str, Enum):
"""
:说明:
用户权限枚举类
* ``OWNER``: 群主
* ``ADMINISTRATOR``: 群管理
* ``MEMBER``: 普通群成员
"""
OWNER = 'OWNER'
ADMINISTRATOR = 'ADMINISTRATOR'
MEMBER = 'MEMBER'
class GroupInfo(BaseModel):
id: int
name: str
permission: UserPermission
class GroupChatInfo(BaseModel):
id: int
name: str = Field(alias='memberName')
permission: UserPermission
group: GroupInfo
class PrivateChatInfo(BaseModel):
id: int
nickname: str
remark: str
class Event(BaseEvent):
"""
mirai-api-http 协议事件,字段与 mirai-api-http 一致。各事件字段参考 `mirai-api-http 事件类型`_
.. _mirai-api-http 事件类型:
https://github.com/project-mirai/mirai-api-http/blob/master/docs/EventType.md
"""
self_id: int
type: str
@classmethod
def new(cls, data: Dict[str, Any]) -> "Event":
"""
此事件类的工厂函数, 能够通过事件数据选择合适的子类进行序列化
"""
type = data['type']
def all_subclasses(cls: Type[Event]):
return set(cls.__subclasses__()).union(
[s for c in cls.__subclasses__() for s in all_subclasses(c)])
event_class: Optional[Type[Event]] = None
for subclass in all_subclasses(cls):
if subclass.__name__ != type:
continue
event_class = subclass
if event_class is None:
return Event.parse_obj(data)
while issubclass(event_class, Event):
try:
return event_class.parse_obj(data)
except ValidationError as e:
logger.info(
f'Failed to parse {data} to class {event_class.__name__}: '
f'{e.errors()!r}. Fallback to parent class.')
event_class = event_class.__base__
raise ValueError(f'Failed to serialize {data}.')
@overrides(BaseEvent)
def get_type(self) -> Literal["message", "notice", "request", "meta_event"]:
from . import message, notice, request, meta
if isinstance(self, message.MessageEvent):
return 'message'
elif isinstance(self, notice.NoticeEvent):
return 'notice'
elif isinstance(self, request.RequestEvent):
return 'request'
else:
return 'meta_event'
@overrides(BaseEvent)
def get_event_name(self) -> str:
return self.type
@overrides(BaseEvent)
def get_event_description(self) -> str:
return str(self.normalize_dict())
@overrides(BaseEvent)
def get_message(self) -> BaseMessage:
raise ValueError("Event has no message!")
@overrides(BaseEvent)
def get_plaintext(self) -> str:
raise ValueError("Event has no message!")
@overrides(BaseEvent)
def get_user_id(self) -> str:
raise ValueError("Event has no message!")
@overrides(BaseEvent)
def get_session_id(self) -> str:
raise ValueError("Event has no message!")
@overrides(BaseEvent)
def is_tome(self) -> bool:
return False
def normalize_dict(self, **kwargs) -> Dict[str, Any]:
"""
返回可以被json正常反序列化的结构体
"""
return json.loads(self.json(**kwargs))