nonebot2/nonebot/adapters/__init__.py
2020-08-01 22:03:40 +08:00

147 lines
4.2 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import abc
from functools import reduce
from typing import Dict, Union, Iterable, Optional
from nonebot.config import Config
class BaseBot(abc.ABC):
@abc.abstractmethod
def __init__(self,
type: str,
config: Config,
self_id: int,
*,
websocket=None):
raise NotImplementedError
@abc.abstractmethod
async def handle_message(self, message: dict):
raise NotImplementedError
@abc.abstractmethod
async def call_api(self, api: str, data: dict):
raise NotImplementedError
class BaseMessageSegment(dict):
def __init__(self,
type_: Optional[str] = None,
data: Optional[Dict[str, str]] = None):
super().__init__()
if type_:
self.type = type_
self.data = data
else:
raise ValueError('The "type" field cannot be empty')
def __str__(self):
raise NotImplementedError
def __getitem__(self, item):
if item not in ("type", "data"):
raise KeyError(f'Key "{item}" is not allowed')
return super().__getitem__(item)
def __setitem__(self, key, value):
if key not in ("type", "data"):
raise KeyError(f'Key "{key}" is not allowed')
return super().__setitem__(key, value)
# TODO: __eq__ __add__
@property
def type(self) -> str:
return self["type"]
@type.setter
def type(self, value: str):
self["type"] = value
@property
def data(self) -> Dict[str, str]:
return self["data"]
@data.setter
def data(self, data: Optional[Dict[str, str]]):
self["data"] = data or {}
class BaseMessage(list):
def __init__(self,
message: Union[str, BaseMessageSegment, "BaseMessage"] = None,
*args,
**kwargs):
super().__init__(*args, **kwargs)
if isinstance(message, str):
self.extend(self._construct(message))
elif isinstance(message, BaseMessage):
self.extend(message)
elif isinstance(message, BaseMessageSegment):
self.append(message)
def __str__(self):
return ''.join((str(seg) for seg in self))
@staticmethod
def _construct(msg: str) -> Iterable[BaseMessageSegment]:
raise NotImplementedError
def __add__(
self, other: Union[str, BaseMessageSegment,
"BaseMessage"]) -> "BaseMessage":
result = self.__class__(self)
if isinstance(other, str):
result.extend(self._construct(other))
elif isinstance(other, BaseMessageSegment):
result.append(other)
elif isinstance(other, BaseMessage):
result.extend(other)
return result
def __radd__(self, other: Union[str, BaseMessageSegment, "BaseMessage"]):
result = self.__class__(other)
return result.__add__(self)
def append(self, obj: Union[str, BaseMessageSegment]) -> "BaseMessage":
if isinstance(obj, BaseMessageSegment):
if obj.type == "text" and self and self[-1].type == "text":
self[-1].data["text"] += obj.data["text"]
else:
super().append(obj)
elif isinstance(obj, str):
self.extend(self._construct(obj))
else:
raise ValueError(f"Unexpected type: {type(obj)} {obj}")
return self
def extend(
self, obj: Union["BaseMessage",
Iterable[BaseMessageSegment]]) -> "BaseMessage":
for segment in obj:
self.append(segment)
return self
def reduce(self) -> None:
index = 0
while index < len(self):
if index > 0 and self[
index - 1].type == "text" and self[index].type == "text":
self[index - 1].data["text"] += self[index].data["text"]
del self[index]
else:
index += 1
def extract_plain_text(self) -> str:
def _concat(x: str, y: BaseMessageSegment) -> str:
return f"{x} {y.data['text']}" if y.type == "text" else x
return reduce(_concat, self, "")