#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
"""Phase-1.0BN materializer preflight 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 Phase10BNGuardrails(unittest.TestCase):
    @classmethod
    def setUpClass(cls) -> None:
        cls.data = json.loads((root / "manifests/retroarch/phase-1.0bn-materializer-preflight-patch-chain-audit.json").read_text(encoding="utf-8"))

    def test_parent_and_exact_inputs(self) -> None:
        parent = root / "manifests/retroarch/phase-1.0bm-real-facade-fixture-result.json"
        self.assertEqual(hashlib.sha256(parent.read_bytes()).hexdigest(), self.data["source_bindings"]["phase10bm_manifest_sha256"])
        for key in ("smoke_patch_sha256", "early_diag_patch_sha256", "composition_sha256"):
            self.assertRegex(self.data["source_bindings"][key], r"^[0-9a-f]{64}$")

    def test_preflight_captures_real_blocker(self) -> None:
        preflight = self.data["preflight"]
        for key in ("sdl_commit_exact", "sdl_source_clean", "stage_absent", "build_absent", "archive_absent", "smoke_patch_applies_to_clean_source"):
            self.assertTrue(preflight[key], key)
        for key in ("early_diag_patch_applies_directly_to_clean_source", "current_request_graph_has_complete_patch_chain", "current_changed_file_set_complete", "current_cmake_contract_complete"):
            self.assertFalse(preflight[key], key)
        self.assertFalse(self.data["decision"]["preflight_passed"])

    def test_only_offline_remediation_is_open(self) -> None:
        auth = self.data["authorizations"]
        self.assertTrue(auth["temporary_offline_patch_rebase_authorized"])
        self.assertTrue(auth["corrected_contract_source_authorized"])
        for key, value in auth.items():
            if key not in ("temporary_offline_patch_rebase_authorized", "corrected_contract_source_authorized"):
                self.assertFalse(value, key)
        self.assertFalse(self.data["decision"]["materialization_allowed"])


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