Files
QuizBot/classes/pycord_guild.py

179 lines
5.9 KiB
Python

from dataclasses import dataclass
from logging import Logger
from typing import Any, Dict, Optional
from bson import ObjectId
from libbot.cache.classes import Cache
from pymongo.results import InsertOneResult
from classes.errors import GuildNotFoundError
from modules.database import col_guilds
from modules.logging_utils import get_logger
logger: Logger = get_logger(__name__)
@dataclass
class PycordGuild:
"""Dataclass of DB entry of a guild"""
__slots__ = ("_id", "id", "channel_id", "category_id")
__short_name__ = "guild"
__collection__ = col_guilds
_id: ObjectId
id: int
channel_id: Optional[int]
category_id: Optional[int]
@classmethod
async def from_id(
cls, guild_id: int, allow_creation: bool = True, cache: Optional[Cache] = None
) -> "PycordGuild":
"""Find guild in database and create new record if guild does not exist.
Args:
guild_id (int): User's Discord ID
allow_creation (:obj:`bool`, optional): Create new guild record if none found in the database
cache (:obj:`Cache`, optional): Cache engine to get the cache from
Returns:
PycordGuild: User object
Raises:
GuildNotFoundError: User was not found and creation was not allowed
"""
if cache is not None:
cached_entry: Dict[str, Any] | None = cache.get_json(f"{cls.__short_name__}_{guild_id}")
if cached_entry is not None:
return cls(**cached_entry)
db_entry = await cls.__collection__.find_one({"id": guild_id})
if db_entry is None:
if not allow_creation:
raise GuildNotFoundError(guild_id)
db_entry = PycordGuild.get_defaults(guild_id)
insert_result: InsertOneResult = await cls.__collection__.insert_one(db_entry)
db_entry["_id"] = insert_result.inserted_id
if cache is not None:
cache.set_json(f"{cls.__short_name__}_{guild_id}", db_entry)
return cls(**db_entry)
async def _set(self, key: str, value: Any, cache: Optional[Cache] = None) -> None:
"""Set attribute data and save it into the database.
Args:
key (str): Attribute to change
value (Any): Value to set
cache (:obj:`Cache`, optional): Cache engine to write the update into
"""
if not hasattr(self, key):
raise AttributeError()
setattr(self, key, value)
await self.__collection__.update_one({"_id": self._id}, {"$set": {key: value}}, upsert=True)
self._update_cache(cache)
logger.info("Set attribute '%s' of user %s to '%s'", key, self.id, value)
async def _remove(self, key: str, cache: Optional[Cache] = None) -> None:
"""Remove attribute data and save it into the database.
Args:
key (str): Attribute to remove
cache (:obj:`Cache`, optional): Cache engine to write the update into
"""
if not hasattr(self, key):
raise AttributeError()
default_value: Any = PycordGuild.get_default_value(key)
setattr(self, key, default_value)
await self.__collection__.update_one({"_id": self._id}, {"$set": {key: default_value}}, upsert=True)
self._update_cache(cache)
logger.info("Removed attribute '%s' of guild %s", key, self.id)
def _get_cache_key(self) -> str:
return f"{self.__short_name__}_{self.id}"
def _update_cache(self, cache: Optional[Cache] = None) -> None:
if cache is None:
return
user_dict: Dict[str, Any] = self.to_dict()
if user_dict is not None:
cache.set_json(self._get_cache_key(), user_dict)
else:
self._delete_cache(cache)
def _delete_cache(self, cache: Optional[Cache] = None) -> None:
if cache is None:
return
cache.delete(self._get_cache_key())
def to_dict(self, json_compatible: bool = False) -> Dict[str, Any]:
"""Convert PycordGuild object to a JSON representation.
Args:
json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted
Returns:
Dict[str, Any]: JSON representation of PycordGuild
"""
return {
"_id": self._id if not json_compatible else str(self._id),
"id": self.id,
"channel_id": self.channel_id,
"category_id": self.category_id,
}
@staticmethod
def get_defaults(guild_id: Optional[int] = None) -> Dict[str, Any]:
return {"id": guild_id, "channel_id": None, "category_id": None}
@staticmethod
def get_default_value(key: str) -> Any:
if key not in PycordGuild.get_defaults():
raise KeyError(f"There's no default value for key '{key}' in PycordGuild")
return PycordGuild.get_defaults()[key]
async def purge(self, cache: Optional[Cache] = None) -> None:
"""Completely remove guild data from database. Currently only removes the guild record from guilds collection.
Args:
cache (:obj:`Cache`, optional): Cache engine to write the update into
"""
await self.__collection__.delete_one({"_id": self._id})
self._delete_cache(cache)
# TODO Add documentation
async def set_channel(self, channel_id: Optional[int] = None, cache: Optional[Cache] = None) -> None:
await self._set("channel_id", channel_id, cache)
# TODO Add documentation
async def set_category(self, category_id: Optional[int] = None, cache: Optional[Cache] = None) -> None:
await self._set("category_id", category_id, cache)
# TODO Add documentation
async def reset_channel(self, cache: Optional[Cache] = None) -> None:
await self._remove("channel_id", cache)
# TODO Add documentation
async def reset_category(self, cache: Optional[Cache] = None) -> None:
await self._remove("category_id", cache)