#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
"""Mutation guardrails for Phase-1.0Q public VideoOut evidence."""

from __future__ import annotations

import argparse
import copy
import importlib.util
from pathlib import Path
import sys


def load(path: Path):
    spec = importlib.util.spec_from_file_location("phase10q", path)
    assert spec and spec.loader
    module = importlib.util.module_from_spec(spec)
    sys.modules[spec.name] = module
    spec.loader.exec_module(module)
    return module


def require(value: bool, message: str) -> None:
    if not value:
        raise RuntimeError(message)


def main() -> int:
    parser = argparse.ArgumentParser()
    parser.add_argument("--root", type=Path, required=True)
    args = parser.parse_args()
    root = args.root.resolve()
    validator = load(root / "tools/validate_retroarch_phase10q.py")
    record = validator.load_json(
        root / "manifests/retroarch/phase-1.0q-public-videoout-evidence.json")
    cases = []

    def case(name):
        def register(function):
            cases.append((name, function))
            return function
        return register

    @case("01 authorizations remain false")
    def _(): require(validator.all_false(record["authorizations"], validator.AUTHORIZATION_FIELDS), "authority active")

    @case("02 target build authorization fails")
    def _():
        value = dict(record["authorizations"]); value["target_build_authorized"] = True
        require(not validator.all_false(value, validator.AUTHORIZATION_FIELDS), "target build allowed")

    @case("03 automatic retry fails")
    def _():
        value = dict(record["authorizations"]); value["automatic_retry"] = True
        require(not validator.all_false(value, validator.AUTHORIZATION_FIELDS), "retry allowed")

    @case("04 network scope is bounded")
    def _(): require(validator.network_scope_is_bounded(record["network_scope"]), "scope rejected")

    @case("05 arbitrary mirror fails")
    def _():
        value = dict(record["network_scope"]); value["arbitrary_mirrors"] = True
        require(not validator.network_scope_is_bounded(value), "mirror accepted")

    @case("06 executed download fails")
    def _():
        value = dict(record["network_scope"]); value["downloaded_code_executed"] = True
        require(not validator.network_scope_is_bounded(value), "execution accepted")

    @case("07 SDK remains symbol only")
    def _(): require(validator.sdk_evidence_is_symbol_only(record["sdk"]), "SDK rejected")

    @case("08 invented SDK header fails")
    def _():
        value = dict(record["sdk"]); value["public_videoout_header"] = True
        require(not validator.sdk_evidence_is_symbol_only(value), "header invented")

    @case("09 SDL remains one lineage")
    def _(): require(validator.sdl_lineage_is_single(record["sdl_lineage"]), "SDL lineage rejected")

    @case("10 invented independent source fails")
    def _():
        value = dict(record["sdl_lineage"]); value["independent_abi_source_cited"] = True
        require(not validator.sdl_lineage_is_single(value), "independence invented")

    @case("11 official archives do not corroborate")
    def _(): require(validator.archives_do_not_corroborate(record["official_project_archives"]), "archives rejected")

    @case("12 invented direct hit fails")
    def _():
        value = copy.deepcopy(record["official_project_archives"]); value[0]["direct_videoout_hits"] = 1
        require(not validator.archives_do_not_corroborate(value), "direct hit invented")

    @case("13 PS4 analogue is not promoted")
    def _(): require(validator.ps4_analogue_is_not_promoted(record["ps4_analogue"]), "PS4 boundary rejected")

    @case("14 PS4 promotion fails")
    def _():
        value = dict(record["ps4_analogue"]); value["accepted_as_ps5_abi"] = True
        require(not validator.ps4_analogue_is_not_promoted(value), "PS4 accepted as PS5")

    @case("15 evidence matrix is fail closed")
    def _(): require(validator.evidence_matrix_is_fail_closed(record["evidence_matrix"]), "matrix rejected")

    @case("16 mode semantics promotion fails")
    def _():
        value = dict(record["evidence_matrix"]); value["mode_one_semantics"] = "PROVEN_ON_PS5"
        require(not validator.evidence_matrix_is_fail_closed(value), "mode promoted")

    @case("17 decision is blocked")
    def _(): require(validator.decision_is_blocked(record["decision"]), "decision rejected")

    @case("18 parameter change fails")
    def _():
        value = dict(record["decision"]); value["parameter_change_allowed"] = True
        require(not validator.decision_is_blocked(value), "parameter change allowed")

    @case("19 new VideoOut call fails")
    def _():
        value = dict(record["decision"]); value["new_videoout_call_allowed"] = True
        require(not validator.decision_is_blocked(value), "new call allowed")

    @case("20 host research is not hardware evidence")
    def _(): require(record["tests"]["hardware_claim_from_host_test"] is False, "host research promoted")

    failures = []
    for name, function in cases:
        try:
            function()
            print(f"PASS {name}")
        except Exception as error:  # noqa: BLE001 - mutation harness
            failures.append(f"{name}: {error}")
            print(f"FAIL {name}: {error}")
    if failures:
        return 1
    print(f"Phase-1.0Q guardrails passed: {len(cases)}")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())