#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
"""Phase-1.0BK exact host-fixture gate guardrails."""

import argparse
import hashlib
import json
from pathlib import Path
import unittest

parser = argparse.ArgumentParser()
parser.add_argument("--root", type=Path, required=True)
root = parser.parse_args().root


class Phase10BKGuardrails(unittest.TestCase):
    @classmethod
    def setUpClass(cls) -> None:
        cls.data = json.loads((root / "manifests/retroarch/phase-1.0bk-bounded-real-facade-host-fixture-gate.json").read_text(encoding="utf-8"))

    def test_exact_parent_and_runtime(self) -> None:
        parent = root / "manifests/retroarch/phase-1.0bj-exact-host-tool-install-result.json"
        bindings = self.data["source_bindings"]
        self.assertEqual(hashlib.sha256(parent.read_bytes()).hexdigest(), bindings["phase10bj_manifest_sha256"])
        self.assertEqual(bindings["python_path"], "/usr/bin/python3.14")
        self.assertRegex(bindings["python_sha256"], r"^[0-9a-f]{64}$")

    def test_four_exact_bounded_fixtures(self) -> None:
        fixtures = self.data["fixture_contract"]
        self.assertEqual(fixtures["suite_attempts"], 1)
        self.assertEqual(fixtures["per_fixture_attempts"], 1)
        self.assertEqual(set(fixtures) - {"suite_attempts", "per_fixture_attempts"}, {"success", "nonzero", "overflow", "timeout"})
        for name in ("success", "nonzero", "overflow", "timeout"):
            fixture = fixtures[name]
            self.assertEqual(fixture["argv"][0], "/usr/bin/python3.14")
            self.assertLessEqual(fixture["timeout_seconds"], 2)
            self.assertEqual(fixture["output_limit"], 64)

    def test_authority_stays_host_fixture_only(self) -> None:
        auth = self.data["authorizations"]
        self.assertTrue(auth["exact_host_fixture_suite_authorized"])
        for key, value in auth.items():
            if key != "exact_host_fixture_suite_authorized":
                self.assertFalse(value, key)
        self.assertFalse(self.data["decision"]["materialization_allowed"])
        self.assertFalse(self.data["decision"]["device_action_allowed"])


if __name__ == "__main__":
    unittest.main(argv=[__file__])