#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
"""Phase-1.0BP one-shot materialization 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 Phase10BPGuardrails(unittest.TestCase):
    @classmethod
    def setUpClass(cls) -> None:
        cls.data = json.loads((root / "manifests/retroarch/phase-1.0bp-one-shot-sdl-materialization-gate.json").read_text(encoding="utf-8"))

    def test_parent_runner_and_exact_preflight(self) -> None:
        parent = root / "manifests/retroarch/phase-1.0bo-patch-chain-remediation-result.json"
        self.assertEqual(hashlib.sha256(parent.read_bytes()).hexdigest(), self.data["source_bindings"]["phase10bo_manifest_sha256"])
        self.assertRegex(self.data["source_bindings"]["runner_sha256"], r"^[0-9a-f]{64}$")
        preflight = self.data["preflight"]
        for key in ("sdl_source_clean", "stage_absent", "build_absent", "archive_absent"):
            self.assertTrue(preflight[key], key)
        self.assertEqual(preflight["request_count"], 10)
        self.assertEqual(len(preflight["exact_output_paths"]), 3)

    def test_invocation_is_one_shot_without_cleanup(self) -> None:
        invocation = self.data["invocation"]
        self.assertEqual(invocation["attempts_authorized"], 1)
        self.assertFalse(invocation["automatic_retry"])
        self.assertFalse(invocation["cleanup_authorized"])
        self.assertEqual(invocation["argv"][0], "/usr/bin/python3.14")
        self.assertIn("run_once", invocation["argv"][2])

    def test_authority_ends_at_sdl_archive(self) -> None:
        auth = self.data["authorizations"]
        for key in ("exact_materializer_invocation_authorized", "cmake_invocation_authorized", "sdl_build_authorized"):
            self.assertTrue(auth[key], key)
        for key, value in auth.items():
            if key not in ("exact_materializer_invocation_authorized", "cmake_invocation_authorized", "sdl_build_authorized"):
                self.assertFalse(value, key)
        self.assertFalse(self.data["decision"]["retroarch_cross_build_allowed"])
        self.assertFalse(self.data["decision"]["device_action_allowed"])


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