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sh
75 lines
2.2 KiB
Python
75 lines
2.2 KiB
Python
"""Squaring bot — replies to every number with its square.
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Run with the simplex-chat package installed:
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python examples/squaring_bot.py
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Sends `n * n = ...` for any text message that parses as a number; falls
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back to a hint for non-number messages; responds to `/help` with usage.
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"""
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from __future__ import annotations
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import re
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from simplex_chat import (
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Bot,
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BotCommand,
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BotProfile,
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Message,
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ParsedCommand,
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SqliteDb,
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TextMessage,
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)
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bot = Bot(
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profile=BotProfile(display_name="Squaring bot"),
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db=SqliteDb(file_prefix="./squaring_bot"),
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welcome="Send me a number, I'll square it.",
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commands=[
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# `params=None` (default): the client SENDS `/help` immediately
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# when the user taps it in the commands menu.
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BotCommand(keyword="help", label="Show help"),
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# `params="<number>"`: the client PASTES `/square <number>`
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# into the input box and positions the cursor at the end. The
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# user replaces `<number>` with the actual number and sends.
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BotCommand(keyword="square", label="Square a number", params="<number>"),
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],
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)
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NUMBER_RE = re.compile(r"^-?\d+(\.\d+)?$")
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@bot.on_message(content_type="text", text=NUMBER_RE)
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async def square(msg: TextMessage) -> None:
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n = float(msg.text or "0")
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await msg.reply(f"{n} * {n} = {n * n}")
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@bot.on_message(content_type="text")
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async def fallback(msg: Message) -> None:
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await msg.reply("Send me a number, like 7 or 3.14.")
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@bot.on_command("help")
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async def help_cmd(msg: Message, _cmd: ParsedCommand) -> None:
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await msg.reply("Send a number, I'll square it.")
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@bot.on_command("square")
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async def square_cmd(msg: Message, cmd: ParsedCommand) -> None:
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"""Demonstrates the `params` flow: `cmd.args` is the trimmed text
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AFTER `/square`. When the user tapped the menu entry above, the
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client pasted `/square <number>` and the user replaced
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`<number>` with the actual value before sending."""
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try:
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n = float(cmd.args)
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except ValueError:
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await msg.reply(f"Usage: /square <number> (got {cmd.args!r})")
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return
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await msg.reply(f"{n} * {n} = {n * n}")
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if __name__ == "__main__":
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bot.run()
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