import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "src"))

from llamacppctl import actions, main as main_mod  # noqa: E402

CONFIG = """
[default]
hf_home = /srv/models
model_path = qwen3/default.gguf
container_name = test_main
"""


def _config(tmp_path: Path) -> Path:
    path = tmp_path / "llama.cpp.config"
    path.write_text(CONFIG, encoding="utf-8")
    return path


def test_print_effective_config_has_no_side_effects(tmp_path, monkeypatch, capsys):
    """Regression: --print-effective-config used to fall through into do_start()
    because argparse always required an action, silently replacing a running
    container."""
    started = []
    monkeypatch.setattr(actions, "do_start", lambda *a, **k: started.append(1))
    monkeypatch.setattr(actions, "do_change", lambda *a, **k: started.append(1))
    monkeypatch.setattr(actions, "do_stop", lambda *a, **k: started.append(1))

    rc = main_mod.run(["--print-effective-config", "--config", str(_config(tmp_path))])

    assert rc == 0
    assert started == []
    assert '"container_name": "test_main"' in capsys.readouterr().out


def test_print_effective_config_works_without_docker(tmp_path, monkeypatch, capsys):
    """It is a pure config check, so it must not require a reachable daemon."""
    def boom() -> bool:
        raise AssertionError("docker_available() must not be consulted")

    monkeypatch.setattr(main_mod, "docker_available", boom)

    rc = main_mod.run(["--print-effective-config", "--config", str(_config(tmp_path))])

    assert rc == 0
    assert '"hf_home": "/srv/models"' in capsys.readouterr().out


def test_start_still_requires_docker(tmp_path, monkeypatch, capsys):
    monkeypatch.setattr(main_mod, "docker_available", lambda: False)

    rc = main_mod.run(["--start", "--config", str(_config(tmp_path))])

    assert rc == 1
    assert "docker is not available" in capsys.readouterr().err