from __future__ import annotations

import argparse
import json

import pytest

import pyro_mcp.doctor as doctor_module
from pyro_mcp.runtime import DEFAULT_PLATFORM


def test_doctor_main_prints_json(
    monkeypatch: pytest.MonkeyPatch,
    capsys: pytest.CaptureFixture[str],
) -> None:
    class StubParser:
        def parse_args(self) -> argparse.Namespace:
            return argparse.Namespace(platform="linux-x86_64", environment="debian:12")

    monkeypatch.setattr(doctor_module, "_build_parser", lambda: StubParser())
    monkeypatch.setattr(
        doctor_module,
        "doctor_report",
        lambda *, platform, environment: {
            "platform": platform,
            "environment": environment,
            "runtime_ok": True,
            "issues": [],
        },
    )
    doctor_module.main()
    output = json.loads(capsys.readouterr().out)
    assert output["runtime_ok"] is True


def test_doctor_build_parser_defaults_platform() -> None:
    parser = doctor_module._build_parser()
    args = parser.parse_args([])
    assert args.platform == DEFAULT_PLATFORM
    assert args.environment == "debian:12"