import logging

import pytest
from dynalab_core import Core
from dynalab_core.config import CoreConfig
from dynalab_core.errors import CoreStateMismatchError
from test.common import find_available_port


def test_core_cannot_start_twice(caplog: pytest.LogCaptureFixture) -> None:
    port = find_available_port(8765)
    core = Core(CoreConfig(port=port))

    with caplog.at_level(logging.DEBUG, logger="dynalab_core"):
        core.start()

        try:
            with pytest.raises(CoreStateMismatchError):
                core.start()
        finally:
            core.stop()

    events = [getattr(record, "event", None) for record in caplog.records]
    assert events.count("core.starting") == 1
    assert "core.start_rejected" in events
    assert "core.stopped" in events

    rejection = next(
        record
        for record in caplog.records
        if getattr(record, "event", None) == "core.start_rejected"
    )
    assert rejection.levelno == logging.WARNING
    assert rejection.core_state == "started"