import pytest
from repo_cloner.lib.disk_stored_list import DiskStoredList


@pytest.fixture
def tmp_test_file(tmp_path):
	test_file = tmp_path.joinpath("list")
	test_file.write_text(
		"Ahoj\n"
		"Zkouška\n"
		"Item1\n"
		"Item2\n"
		"\n")

	return test_file


def test_init_no_file_no_dir(tmp_path):
	with pytest.raises(NotADirectoryError) as e:
		pass
		DiskStoredList(tmp_path.joinpath("nonexistent_dir", "nonexistent_file").as_posix())
	assert "nonexistent_dir/nonexistent_file does not exist!" in e.exconly()


def test_init_dir_exists_no_file(tmp_path):
	x = DiskStoredList(tmp_path.joinpath("nonexistent_file").as_posix())
	assert isinstance(x, DiskStoredList)


def test_load_from_file(tmp_path):
	file = tmp_path.joinpath("list")
	file.write_text("line1\nline2\nline3\n")
	x = DiskStoredList(file.as_posix())
	assert len(x._DiskStoredList__items) == 3
	assert x._DiskStoredList__items == [
		'line1',
		'line2',
		'line3',
	]


def test_append_empty(tmp_path):
	empty = tmp_path.joinpath("empty")
	x = DiskStoredList(empty.as_posix())
	x.append("test_line")
	assert empty.read_text() == "test_line\n"
	assert "test_line" in x._DiskStoredList__items
	assert len(x._DiskStoredList__items) == 1


def test_append_utilized(tmp_test_file):
	x = DiskStoredList(tmp_test_file.as_posix())
	x.append("Item3")
	assert x._DiskStoredList__items == ['Ahoj', 'Zkouška', 'Item1', 'Item2', 'Item3']


def test_count(tmp_test_file):
	x = DiskStoredList(tmp_test_file.as_posix())
	assert x.count() == 4
	x.append("WTH")
	assert x.count() == 5


def test__contains__(tmp_test_file):
	x = DiskStoredList(tmp_test_file.parent.joinpath("a"))
	x.append("WTF")
	assert "WTF" in x
	assert "Line2" not in x

	y = DiskStoredList(tmp_test_file.as_posix())
	assert "Item2" in y
	assert "Ahoj" in y


def test__iter__(tmp_test_file):
	result = []
	for x in DiskStoredList(tmp_test_file.as_posix()):
		result.append(x)
	assert result == ['Ahoj', 'Zkouška', 'Item1', 'Item2']


def test__len__(tmp_test_file):
	assert len(DiskStoredList(tmp_test_file.as_posix())) == 4