import importlib.util
import sys
import tempfile
import unittest
from pathlib import Path


def load_pre_commit_checks():
    module_path = Path(__file__).resolve().parent.parent / ".codex" / "hooks" / "pre_commit_checks.py"
    spec = importlib.util.spec_from_file_location("pre_commit_checks", module_path)
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)
    return module


class PreCommitChecksTests(unittest.TestCase):
    def test_git_commit_runs_python_self_tests_and_workspace_validation(self):
        pre_commit_checks = load_pre_commit_checks()
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp)
            commands = pre_commit_checks._build_pre_commit_commands(root)

        self.assertEqual(
            commands,
            [
                [sys.executable, "-m", "unittest", "discover", "-s", "scripts", "-p", "test_*.py"],
                [sys.executable, "scripts/validate_workspace.py"],
            ],
        )
        self.assertFalse(any("npm" in part.lower() for command in commands for part in command))

    def test_only_git_commit_commands_trigger_checks(self):
        pre_commit_checks = load_pre_commit_checks()
        self.assertTrue(pre_commit_checks._is_git_commit('git commit -m "change"'))
        self.assertTrue(pre_commit_checks._is_git_commit('git -c core.editor=true commit -m "change"'))
        self.assertFalse(pre_commit_checks._is_git_commit("git status --short"))
        self.assertFalse(pre_commit_checks._is_git_commit("echo git commit"))


if __name__ == "__main__":
    unittest.main()