101 lines
3.1 KiB
Python
101 lines
3.1 KiB
Python
# maubot - A plugin-based Matrix bot system.
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# Copyright (C) 2022 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from __future__ import annotations
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from typing import TYPE_CHECKING, ClassVar
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from enum import Enum
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from asyncpg import Record
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from attr import dataclass
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from mautrix.types import UserID
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from mautrix.util.async_db import Database
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fake_db = Database.create("") if TYPE_CHECKING else None
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class DatabaseEngine(Enum):
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SQLITE = "sqlite"
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POSTGRES = "postgres"
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@dataclass
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class Instance:
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db: ClassVar[Database] = fake_db
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id: str
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type: str
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enabled: bool
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primary_user: UserID
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config_str: str
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database_engine: DatabaseEngine | None
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@property
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def database_engine_str(self) -> str | None:
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return self.database_engine.value if self.database_engine else None
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@classmethod
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def _from_row(cls, row: Record | None) -> Instance | None:
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if row is None:
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return None
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data = {**row}
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db_engine = data.pop("database_engine", None)
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return cls(**data, database_engine=DatabaseEngine(db_engine) if db_engine else None)
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_columns = "id, type, enabled, primary_user, config, database_engine"
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@classmethod
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async def all(cls) -> list[Instance]:
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q = f"SELECT {cls._columns} FROM instance"
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rows = await cls.db.fetch(q)
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return [cls._from_row(row) for row in rows]
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@classmethod
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async def get(cls, id: str) -> Instance | None:
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q = f"SELECT {cls._columns} FROM instance WHERE id=$1"
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return cls._from_row(await cls.db.fetchrow(q, id))
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async def update_id(self, new_id: str) -> None:
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await self.db.execute("UPDATE instance SET id=$1 WHERE id=$2", new_id, self.id)
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self.id = new_id
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@property
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def _values(self):
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return (
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self.id,
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self.type,
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self.enabled,
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self.primary_user,
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self.config_str,
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self.database_engine_str,
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)
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async def insert(self) -> None:
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q = (
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"INSERT INTO instance (id, type, enabled, primary_user, config, database_engine) "
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"VALUES ($1, $2, $3, $4, $5, $6)"
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)
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await self.db.execute(q, *self._values)
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async def update(self) -> None:
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q = """
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UPDATE instance SET type=$2, enabled=$3, primary_user=$4, config=$5, database_engine=$6
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WHERE id=$1
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"""
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await self.db.execute(q, *self._values)
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async def delete(self) -> None:
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await self.db.execute("DELETE FROM instance WHERE id=$1", self.id)
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