from __future__ import annotations

import pathlib
import tomllib
import unittest


ROOT = pathlib.Path(__file__).resolve().parents[1]


class PolicyModuleContractTests(unittest.TestCase):
    def test_policy_package_does_not_hard_require_access(self) -> None:
        project = tomllib.loads((ROOT / "pyproject.toml").read_text(encoding="utf-8"))["project"]
        dependencies = tuple(project["dependencies"])

        self.assertTrue(any(item.startswith("govoplan-core>=") for item in dependencies))
        self.assertFalse(any(item.startswith("govoplan-access") for item in dependencies))

    def test_policy_source_does_not_import_access_implementation(self) -> None:
        offenders: list[str] = []
        for path in (ROOT / "src" / "govoplan_policy").rglob("*.py"):
            source = path.read_text(encoding="utf-8")
            if "govoplan_access" in source:
                offenders.append(str(path.relative_to(ROOT)))

        self.assertEqual([], offenders)


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