"""Platform guards for the community-supported native macOS install path."""
from __future__ import annotations

import importlib.util
from pathlib import Path


ROOT = Path(__file__).resolve().parents[1]
SPEC = importlib.util.spec_from_file_location("nexus_sync_macos_test", ROOT / "bin" / "sync.py")
assert SPEC and SPEC.loader
sync = importlib.util.module_from_spec(SPEC)
SPEC.loader.exec_module(sync)


def test_darwin_uses_gpu_agnostic_requirements(monkeypatch):
    monkeypatch.setattr(sync.os, "name", "posix")
    monkeypatch.setattr(sync.sys, "platform", "darwin")
    assert sync.requirements() == "requirements-base.txt"


def test_linux_provisioning_stages_are_skipped_on_darwin(monkeypatch):
    monkeypatch.setattr(sync.sys, "platform", "darwin")

    def unexpected_run(*args, **kwargs):
        raise AssertionError(f"Linux provisioning ran on macOS: {args!r}")

    monkeypatch.setattr(sync.subprocess, "run", unexpected_run)
    sync.linux_stage("restore-linux.sh", "packages")


def test_macos_installer_is_in_the_shell_parse_gate():
    gate = (ROOT / "bin" / "check.sh").read_text(encoding="utf-8")
    assert "install-macos.sh" in gate