import os

import pytest

# needed to get pretty assertion failures in unit tests:
pytest.register_assert_rewrite('borg.testsuite')

from borg.logger import setup_logging

# Ensure that the loggers exist for all tests
setup_logging()

from borg.testsuite import has_lchflags, has_llfuse
from borg.testsuite import are_symlinks_supported, are_hardlinks_supported, is_utime_fully_supported
from borg.testsuite.platform import fakeroot_detected, are_acls_working
from borg import xattr, constants


def pytest_configure(config):
    # no fixture-based monkey-patching since star-imports are used for the constants module
    constants.PBKDF2_ITERATIONS = 1


@pytest.fixture(autouse=True)
def clean_env(tmpdir_factory, monkeypatch):
    # avoid that we access / modify the user's normal .config / .cache directory:
    monkeypatch.setenv('XDG_CONFIG_HOME', tmpdir_factory.mktemp('xdg-config-home'))
    monkeypatch.setenv('XDG_CACHE_HOME', tmpdir_factory.mktemp('xdg-cache-home'))
    # also avoid to use anything from the outside environment:
    keys = [key for key in os.environ if key.startswith('BORG_')]
    for key in keys:
        monkeypatch.delenv(key, raising=False)


def pytest_report_header(config, startdir):
    tests = {
        "BSD flags": has_lchflags,
        "fuse": has_llfuse,
        "root": not fakeroot_detected(),
        "symlinks": are_symlinks_supported(),
        "hardlinks": are_hardlinks_supported(),
        "atime/mtime": is_utime_fully_supported(),
        "modes": "BORG_TESTS_IGNORE_MODES" not in os.environ
    }
    enabled = []
    disabled = []
    for test in tests:
        if tests[test]:
            enabled.append(test)
        else:
            disabled.append(test)
    output = "Tests enabled: " + ", ".join(enabled) + "\n"
    output += "Tests disabled: " + ", ".join(disabled)
    return output