"""Logging and the server (#5159): one handler, the level a setting, and
Hypercorn's lines going through the same logging."""
import logging

import pytest

from steward.core import logging_setup
from steward.core.settings import DEFAULTS


@pytest.fixture
def root():
    root = logging.getLogger()
    handlers, level = list(root.handlers), root.level
    yield root
    root.handlers[:] = handlers
    root.setLevel(level)


def test_configuring_twice_installs_one_handler(root):
    logging_setup.configure_logging("INFO")
    logging_setup.configure_logging("DEBUG")
    ours = [h for h in root.handlers if getattr(h, "_steward", False)]
    assert len(ours) == 1
    assert ours[0].formatter._fmt == logging_setup.FORMAT
    assert root.level == logging.DEBUG


@pytest.mark.parametrize("given, applied", [
    ("warning", "WARNING"), (" Error ", "ERROR"), ("DEBUG", "DEBUG"),
    ("loud", "INFO"), ("", "INFO"), (None, "INFO"),
])
def test_the_level_setting_is_applied_and_an_unknown_one_is_info(root, given, applied):
    assert logging_setup.set_log_level(given) == applied
    assert root.level == getattr(logging, applied)


def test_a_library_basic_config_after_ours_changes_nothing(root):
    logging_setup.configure_logging("WARNING")
    before = list(root.handlers)
    logging.basicConfig(level=logging.DEBUG, format="%(message)s")
    assert root.handlers == before and root.level == logging.WARNING


def test_the_level_is_a_setting_defaulting_to_info():
    assert DEFAULTS["log.level"] == "INFO"
    assert DEFAULTS["log.level"] in logging_setup.LEVELS


def test_the_server_is_one_hypercorn_worker_logging_through_steward():
    from steward.cli import GRACEFUL_TIMEOUT_SECONDS, hypercorn_config
    config = hypercorn_config("0.0.0.0", 5000)
    assert config.bind == ["0.0.0.0:5000"]
    assert config.workers == 1          # run, stream and scheduler state is in-process
    assert config.graceful_timeout == GRACEFUL_TIMEOUT_SECONDS
    assert config.accesslog is logging.getLogger("hypercorn.access")
    assert config.errorlog is logging.getLogger("hypercorn.error")