import pytest
from pathlib import Path
import sys
import os
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from slic.utils.dotdir import *

@pytest.fixture
def patch_home(monkeypatch, tmp_path):
    # Temporarily replace Path.home() with a temporary directory to avoid modifying the real user home during tests
    monkeypatch.setattr("pathlib.Path.home", lambda: tmp_path)
    return tmp_path  # provide tmp_path for use inside tests

# test (__init__)
def test_dotdir_creation_and_base_exists(patch_home):
    # Instantiate DotDir with a folder name
    dotdir = DotDir(".testfolder")

    # Assert that the base path is tmp_path/.testfolder
    assert dotdir.base == patch_home / ".testfolder"

    # Assert that the directory was physically created on disk
    assert dotdir.base.exists()

    # Assert that the path is indeed a directory, not a file
    assert dotdir.base.is_dir()

# test (__repr__)
def test_dotdir_repr_returns_path_str(patch_home):
    dotdir = DotDir(".testfolder")

    # Assert that __repr__ returns the string version of the good base path
    assert repr(dotdir) == str(dotdir.base)

# test (__call__)
def test_dotdir_call(patch_home):
    dotdir = DotDir(".testfolder")
    child_name = "config.yaml"

    # Call the DotDir instance with a filename to get full child path
    child_path = dotdir(child_name)

    # Assert the returned path matches base path joined with child name
    assert child_path == dotdir.base / child_name