from __future__ import annotations

from io import StringIO
from unittest.mock import patch

from django.core.management import call_command
from django.test import override_settings


@override_settings(DEBUG=True, TESTING=False)
def test_dev_command_check_is_reported_by_check_command() -> None:
    """System check must be visible through call_command without direct check import."""

    def fake_which(command: str) -> str | None:
        if command == "curl":
            return None
        return f"/usr/bin/{command}"

    stderr = StringIO()
    with patch("shutil.which", side_effect=fake_which):
        call_command("check", "-t", "compatibility", stderr=stderr)

    output = stderr.getvalue()
    assert "(tussilago.W001) Missing host commands used by get_rootfs.bash." in output
    assert "Dev-only tooling missing: curl." in output


@override_settings(DEBUG=False, TESTING=False)
def test_dev_command_check_is_not_reported_in_production_runtime() -> None:
    """Production runtime must not report dev-only tooling warning."""
    stderr = StringIO()
    with patch("shutil.which", return_value=None):
        call_command("check", "-t", "compatibility", stderr=stderr)

    assert "(tussilago.W001)" not in stderr.getvalue()