73 lines
2.6 KiB
Python
73 lines
2.6 KiB
Python
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from __future__ import annotations
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from mautrix.util.async_db import UpgradeTable, Connection
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from maubot import Plugin, MessageEvent
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from maubot.handlers import command
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upgrade_table = UpgradeTable()
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@upgrade_table.register(description="Initial revision")
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async def upgrade_v1(conn: Connection) -> None:
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await conn.execute(
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"""CREATE TABLE stored_data (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL
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)"""
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)
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@upgrade_table.register(description="Remember user who added value")
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async def upgrade_v2(conn: Connection) -> None:
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await conn.execute("ALTER TABLE stored_data ADD COLUMN creator TEXT")
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class StorageBot(Plugin):
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@command.new()
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async def storage(self, evt: MessageEvent) -> None:
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pass
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@storage.subcommand(help="Store a value")
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@command.argument("key")
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@command.argument("value", pass_raw=True)
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async def put(self, evt: MessageEvent, key: str, value: str) -> None:
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q = """
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INSERT INTO stored_data (key, value, creator) VALUES ($1, $2, $3)
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ON CONFLICT (key) DO UPDATE SET value=excluded.value, creator=excluded.creator
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"""
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await self.database.execute(q, key, value, evt.sender)
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await evt.reply(f"Inserted {key} into the database")
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@storage.subcommand(help="Get a value from the storage")
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@command.argument("key")
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async def get(self, evt: MessageEvent, key: str) -> None:
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q = "SELECT key, value, creator FROM stored_data WHERE LOWER(key)=LOWER($1)"
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row = await self.database.fetchrow(q, key)
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if row:
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key = row["key"]
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value = row["value"]
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creator = row["creator"]
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await evt.reply(f"`{key}` stored by {creator}:\n\n```\n{value}\n```")
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else:
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await evt.reply(f"No data stored under `{key}` :(")
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@storage.subcommand(help="List keys in the storage")
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@command.argument("prefix", required=False)
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async def list(self, evt: MessageEvent, prefix: str | None) -> None:
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q = "SELECT key, creator FROM stored_data WHERE key LIKE $1"
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rows = await self.database.fetch(q, prefix + "%")
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prefix_reply = f" starting with `{prefix}`" if prefix else ""
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if len(rows) == 0:
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await evt.reply(f"Nothing{prefix_reply} stored in database :(")
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else:
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formatted_data = "\n".join(
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f"* `{row['key']}` stored by {row['creator']}" for row in rows
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)
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await evt.reply(
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f"Found {len(rows)} keys{prefix_reply} in database:\n\n{formatted_data}"
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)
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@classmethod
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def get_db_upgrade_table(cls) -> UpgradeTable | None:
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return upgrade_table
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