portal.py

# mautrix-amp - A hacky Matrix-SMS bridge using the JS from Android Messages for Web
# Copyright (C) 2021 Tulir Asokan
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
from typing import Optional, ClassVar, List, TYPE_CHECKING

from attr import dataclass

from mautrix.types import RoomID, ContentURI
from mautrix.util.async_db import Database

fake_db = Database("") if TYPE_CHECKING else None


@dataclass
class Portal:
    db: ClassVar[Database] = fake_db

    chat_id: int
    sender_id: Optional[int]
    other_user: Optional[int]
    mxid: Optional[RoomID]
    name: Optional[str]
    name_set: bool
    avatar_hash: Optional[bytes]
    avatar_mxc: Optional[ContentURI]
    avatar_set: bool
    encrypted: bool

    async def insert(self) -> None:
        q = ("INSERT INTO portal (chat_id, sender_id, other_user, mxid, name, name_set,"
             "                    avatar_hash, avatar_mxc, avatar_set, encrypted) "
             "VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)")
        await self.db.execute(q, self.chat_id, self.sender_id, self.other_user, self.mxid,
                              self.name, self.name_set, self.avatar_hash, self.avatar_mxc,
                              self.avatar_set, self.encrypted)

    async def update(self) -> None:
        q = ("UPDATE portal SET sender_id=$2, other_user=$3, mxid=$4, name=$5, name_set=$6,"
             "                  avatar_hash=$7, avatar_mxc=$8, avatar_set=$9, encrypted=$10 "
             "WHERE chat_id=$1")
        await self.db.execute(q, self.chat_id, self.sender_id, self.other_user, self.mxid,
                              self.name, self.name_set, self.avatar_hash, self.avatar_mxc,
                              self.avatar_set, self.encrypted)

    @classmethod
    async def get_by_mxid(cls, mxid: RoomID) -> Optional['Portal']:
        q = ("SELECT chat_id, sender_id, other_user, mxid, name, name_set, avatar_hash, "
             "       avatar_mxc, avatar_set, encrypted "
             "FROM portal WHERE mxid=$1")
        row = await cls.db.fetchrow(q, mxid)
        if not row:
            return None
        return cls(**row)

    @classmethod
    async def get_by_chat_id(cls, chat_id: int) -> Optional['Portal']:
        q = ("SELECT chat_id, sender_id, other_user, mxid, name, name_set, avatar_hash, "
             "       avatar_mxc, avatar_set, encrypted "
             "FROM portal WHERE chat_id=$1")
        row = await cls.db.fetchrow(q, chat_id)
        if not row:
            return None
        return cls(**row)

    @classmethod
    async def get_by_other_user(cls, other_user: int) -> Optional['Portal']:
        q = ("SELECT chat_id, sender_id, other_user, mxid, name, name_set, avatar_hash, "
             "       avatar_mxc, avatar_set, encrypted "
             "FROM portal WHERE other_user=$1")
        row = await cls.db.fetchrow(q, other_user)
        if not row:
            return None
        return cls(**row)

    @classmethod
    async def find_private_chats(cls) -> List['Portal']:
        q = ("SELECT chat_id, sender_id, other_user, mxid, name, name_set, avatar_hash, "
             "       avatar_mxc, avatar_set, encrypted "
             "FROM portal WHERE other_user IS NOT NULL")
        rows = await cls.db.fetch(q)
        return [cls(**row) for row in rows]

    @classmethod
    async def all_with_room(cls) -> List['Portal']:
        q = ("SELECT chat_id, sender_id, other_user, mxid, name, name_set, avatar_hash, "
             "       avatar_mxc, avatar_set, encrypted "
             "FROM portal WHERE mxid IS NOT NULL")
        rows = await cls.db.fetch(q)
        return [cls(**row) for row in rows]