matrix-rssbot/commands/systemmessage.py

from nio.events.room_events import RoomMessageText
from nio.rooms import MatrixRoom


async def command_systemmessage(room: MatrixRoom, event: RoomMessageText, bot):
    system_message = " ".join(event.body.split()[2:])

    if system_message:
        bot.logger.log("Adding system message...")

        with bot.database.cursor() as cur:
            cur.execute(
                """
                INSERT INTO room_settings (room_id, setting, value) VALUES (?, ?, ?)
                ON CONFLICT (room_id, setting) DO UPDATE SET value = ?;
                """,
                (room.room_id, "system_message", system_message, system_message)
            )

        await bot.send_message(room, f"Alright, I've stored the system message: '{system_message}'.", True)
        return

    bot.logger.log("Retrieving system message...")

    system_message = bot.get_system_message(room)

    await bot.send_message(room, f"The current system message is: '{system_message}'.", True)