import os
import shutil
import traceback
import unittest

from unittests_cli.constants import PLAYGROUND_PATH


class CommandTestCase(unittest.TestCase):
    _skip_tear_down = False
    _cwd = os.getcwd()

    def __init__(self, method_name: str):
        unittest.TestCase.__init__(self, method_name)

    @classmethod
    def setUpClass(cls):
        try:
            if os.path.exists(PLAYGROUND_PATH):
                shutil.rmtree(os.path.abspath(os.path.join(PLAYGROUND_PATH)))

            if not os.path.exists(PLAYGROUND_PATH):
                os.makedirs(PLAYGROUND_PATH)
            os.chdir(PLAYGROUND_PATH)
        except Exception as e:
            print(f"Setup of {__name__} failed: {traceback.format_exc()}")

    def setUp(self):
        os.chdir(PLAYGROUND_PATH)

    @classmethod
    def tearDownClass(cls):
        if cls._skip_tear_down:
            return
        try:
            os.chdir(cls._cwd)
            if os.path.exists(PLAYGROUND_PATH):
                shutil.rmtree(os.path.abspath(os.path.join(PLAYGROUND_PATH)))
        except Exception as e:
            print(f"Cleanup of {__name__} failed: {traceback.format_exc()}")