from __future__ import annotations

import pytest

from yuxi.channels.policy.heartbeat import BaseHeartbeatAdapter


def _make_demo():
    class DemoHeartbeat(BaseHeartbeatAdapter):
        async def check_ready(self):
            return True

        async def send_typing(self, chat_id: str):
            pass

        async def clear_typing(self, chat_id: str):
            pass

    return DemoHeartbeat()


class TestBaseHeartbeatAdapter:
    def test_cannot_instantiate_abstract(self):
        with pytest.raises(TypeError):
            BaseHeartbeatAdapter()

    def test_can_instantiate_concrete_impl(self):
        instance = _make_demo()
        assert isinstance(instance, BaseHeartbeatAdapter)

    @pytest.mark.asyncio
    async def test_resolve_recipients_default(self):
        instance = _make_demo()
        result = await instance.resolve_recipients("chat-123")
        assert result == ["chat-123"]

    @pytest.mark.asyncio
    async def test_on_unhealthy_noop(self):
        instance = _make_demo()
        result = await instance.on_unhealthy("chat-123")
        assert result is None