"""Regression for PATH-selected OpenSSL libraries disappearing from the bundle."""
import _ssl
import shutil
import sys
import tempfile
import unittest
from pathlib import Path
from unittest import mock

from packaging_native import pin_ssl_binaries, python_ssl_binaries


class PythonSslPackagingTest(unittest.TestCase):
    def test_dependencies_come_from_build_python(self):
        dependencies = python_ssl_binaries()
        self.assertTrue(any(name.startswith("libssl") for name, _, _ in dependencies))
        self.assertTrue(any(name.startswith("libcrypto") for name, _, _ in dependencies))
        for name, source, kind in dependencies:
            self.assertTrue(Path(source).is_file())
            self.assertTrue(Path(source).resolve().is_relative_to(Path(sys.base_prefix).resolve()))
            self.assertEqual(Path(source).name, name)
            self.assertEqual(kind, "BINARY")

    def test_path_collision_is_replaced_and_required_libraries_are_retained(self):
        verified = python_ssl_binaries()
        wrong = [(name.upper(), "C:/unrelated-pdf-tool/" + name, "BINARY") for name, _, _ in verified]
        other = ("_ssl.pyd", str(_ssl.__file__), "EXTENSION")
        result = pin_ssl_binaries(wrong + [other], verified)
        self.assertEqual(result, [other] + verified)
        # The existing unrelated-runtime filter must keep the corrected DLLs.
        filtered = [item for item in result if ".cache" not in item[1] or
                    Path(item[1]).resolve().is_relative_to(Path(sys.base_prefix).resolve())]
        self.assertEqual(filtered, result)

    def test_missing_python_ssl_dependency_fails_before_packaging(self):
        with tempfile.TemporaryDirectory() as temporary:
            root = Path(temporary)
            extension = root / "_ssl.pyd"
            shutil.copyfile(_ssl.__file__, extension)
            with mock.patch.object(_ssl, "__file__", str(extension)), mock.patch.object(sys, "base_prefix", str(root)):
                with self.assertRaisesRegex(RuntimeError, "OpenSSL dependency is missing"):
                    python_ssl_binaries()