"""Тесты меню команд: допустимые имена и синхронизация при старте."""

from __future__ import annotations

import re

from bot.commands_menu import BOT_COMMANDS, ensure_commands


class FakeBot:
    def __init__(self, current: list) -> None:
        self.current = current
        self.set_calls: list[list] = []

    async def get_my_commands(self) -> list:
        return self.current

    async def set_my_commands(self, commands: list) -> None:
        self.set_calls.append(commands)


class BrokenBot:
    async def get_my_commands(self) -> list:
        raise RuntimeError("telegram unavailable")


def test_command_names_are_telegram_compatible() -> None:
    names = [command.command for command in BOT_COMMANDS]

    assert len(names) == len(set(names))
    for name in names:
        assert re.fullmatch(r"[a-z0-9_]{1,32}", name), name
    for command in BOT_COMMANDS:
        assert command.description


async def test_menu_is_set_when_empty() -> None:
    bot = FakeBot([])

    assert await ensure_commands(bot) is True
    assert len(bot.set_calls) == 1
    assert [command.command for command in bot.set_calls[0]] == [command.command for command in BOT_COMMANDS]


async def test_menu_is_not_touched_when_actual() -> None:
    bot = FakeBot(list(BOT_COMMANDS))

    assert await ensure_commands(bot) is False
    assert bot.set_calls == []


async def test_menu_updates_when_different() -> None:
    bot = FakeBot([BOT_COMMANDS[0]])

    assert await ensure_commands(bot) is True
    assert len(bot.set_calls[0]) == len(BOT_COMMANDS)


async def test_telegram_error_does_not_crash_startup() -> None:
    assert await ensure_commands(BrokenBot()) is False  # type: ignore[arg-type]