#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-3.0-or-later
"""Tracked guardrails for Phase-1.0AR."""

from __future__ import annotations

import argparse
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 Phase10ARGuardrails(unittest.TestCase):
    @classmethod
    def setUpClass(cls) -> None:
        cls.data = json.loads((ROOT / "manifests/retroarch/phase-1.0ar-result-channel-model.json").read_text(encoding="utf-8"))

    def test_completion_not_eof_is_boundary(self) -> None:
        channel = self.data["channel"]
        self.assertFalse(channel["eof_is_success"])
        self.assertFalse(channel["silent_incomplete_is_success"])
        self.assertTrue(channel["record_completion_is_success_boundary"])
        self.assertTrue(channel["deadline_preempts_crossing_read"])

    def test_partial_reads_do_not_require_atomic_write(self) -> None:
        channel = self.data["channel"]
        self.assertTrue(channel["arbitrary_partial_reads_supported"])
        self.assertTrue(channel["byte_at_a_time_supported"])
        self.assertTrue(channel["record_overflow_rejected"])

    def test_no_live_channel_target_or_authority(self) -> None:
        channel = self.data["channel"]
        for key in ("live_pipe_present", "live_fd_present", "real_clock_present",
                    "process_interface_present"):
            self.assertFalse(channel[key])
        self.assertFalse(any(self.data["authorizations"].values()))
        self.assertFalse(self.data["decision"]["live_channel_implementation_allowed"])
        self.assertFalse(self.data["decision"]["target_implementation_allowed"])
        self.assertFalse(self.data["decision"]["device_action_allowed"])


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