import os

from configparser import ConfigParser
import pytest

from atst.app import (
    make_crl_validator,
    apply_config_from_directory,
    apply_config_from_environment,
)


@pytest.fixture
def replace_crl_dir_config(app):
    original = app.config.get("CRL_STORAGE_CONTAINER")

    def _replace_crl_dir_config(crl_dir):
        app.config.update({"CRL_STORAGE_CONTAINER": crl_dir})

    yield _replace_crl_dir_config

    app.config.update({"CRL_STORAGE_CONTAINER": original})


def test_make_crl_validator_creates_crl_dir(app, tmpdir, replace_crl_dir_config):
    crl_dir = tmpdir.join("new_crl_dir")
    replace_crl_dir_config(crl_dir)
    make_crl_validator(app)
    assert os.path.isdir(crl_dir)


@pytest.fixture
def config_object():
    config = ConfigParser()
    config.optionxform = str
    config.read_string("[default]\nFOO=BALONEY")
    return config


def test_apply_config_from_directory(tmpdir, config_object):
    config_setting = tmpdir.join("FOO")
    with open(config_setting, "w") as conf_file:
        conf_file.write("MAYO")

    apply_config_from_directory(tmpdir, config_object)
    assert config_object.get("default", "FOO") == "MAYO"


def test_apply_config_from_directory_skips_unknown_settings(tmpdir, config_object):
    config_setting = tmpdir.join("FLARF")
    with open(config_setting, "w") as conf_file:
        conf_file.write("MAYO")

    apply_config_from_directory(tmpdir, config_object)
    assert "FLARF" not in config_object.options("default")


def test_apply_config_from_environment(monkeypatch, config_object):
    monkeypatch.setenv("FOO", "MAYO")
    apply_config_from_environment(config_object)
    assert config_object.get("default", "FOO") == "MAYO"


def test_apply_config_from_environment_skips_unknown_settings(
    monkeypatch, config_object
):
    monkeypatch.setenv("FLARF", "MAYO")
    apply_config_from_environment(config_object)
    assert "FLARF" not in config_object.options("default")