forked from fair/matrix-puppeteer-line
73 lines
2.7 KiB
Python
73 lines
2.7 KiB
Python
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# matrix-puppeteer-line - A very hacky Matrix-LINE bridge based on running LINE's Chrome extension in Puppeteer
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# Copyright (C) 2020-2021 Tulir Asokan, Andrew Ferrazzutti
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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 typing import List, ClassVar, Dict, Optional, TYPE_CHECKING
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from attr import dataclass
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from mautrix.util.async_db import Database
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fake_db = Database("") if TYPE_CHECKING else None
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@dataclass
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class Receipt:
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db: ClassVar[Database] = fake_db
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mid: int
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chat_id: str
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num_read: int
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async def insert_or_update(self) -> None:
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q = ("INSERT INTO receipt (mid, chat_id, num_read) "
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"VALUES ($1, $2, $3) "
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"ON CONFLICT (chat_id, num_read) "
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"DO UPDATE SET mid=EXCLUDED.mid, num_read=EXCLUDED.num_read")
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await self.db.execute(q, self.mid, self.chat_id, self.num_read)
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# Delete lower counts for earlier messages
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# TODO Consider using a CHECK for this instead
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q = ("DELETE FROM receipt "
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"WHERE chat_id=$1 AND mid<$2 AND num_read<$3")
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await self.db.execute(q, self.chat_id, self.mid, self.num_read)
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@classmethod
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async def get_max_mid(cls, chat_id: str, num_read: int) -> Optional[int]:
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q = ("SELECT mid FROM receipt "
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"WHERE chat_id=$1 AND num_read=$2")
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return await cls.db.fetchval(q, chat_id, num_read)
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@classmethod
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async def get_max_mid_per_num_read(cls, chat_id: str) -> Dict[int, int]:
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rows = await cls.db.fetch("SELECT chat_id, mid, num_read FROM receipt WHERE chat_id=$1", chat_id)
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data = {}
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for row in rows:
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data[row["num_read"]] = row["mid"]
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return data
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@classmethod
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async def get_max_mids_per_num_read(cls) -> Dict[str, Dict[int, int]]:
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rows = await cls.db.fetch("SELECT chat_id, mid, num_read FROM receipt")
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data = {}
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for row in rows:
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chat_id = row["chat_id"]
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if chat_id not in data:
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inner_data = {}
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data[chat_id] = inner_data
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else:
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inner_data = data[chat_id]
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inner_data[row["num_read"]] = row["mid"]
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return data
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