from __future__ import annotations


from pathlib import Path


import pytest


from installer.ui.screens.docker import DockerScreenMixin
import installer.ui.screens.docker as docker_mod


class _DummyDockerScreen(DockerScreenMixin):
    def __init__(self, tmp_path: Path):
        self._tmp_path = tmp_path
        self.prole_cfg_data = {
            # Global deployment mode may remain k3d, while the UI selection is Service.
            "Global": {"DEPLOYMENT_MODE": "k3d"},
            "Docker Build": {},
        }
        self.local_registry_url = None
        self.local_registry_internal = None

    def _cluster_env_key(self, env_label=None) -> str:
        return "service"

    def _deployment_mode(self) -> str:
        return "k3d"

    def _k3s_registry_hostport(self) -> str:
        return "myrddin.prole.org:5000"

    def _registry_namespace(self) -> str:
        return "knoe-system"

    def check_docker_running(self) -> bool:
        return True

    def safe_after(self, fn):
        # Execute inline for tests
        try:
            fn()
        except Exception:
            pass

    def _save_prole_cfg(self):
        return None

    def _registry_log_path(self) -> Path:
        return self._tmp_path / "local_registry.log"


def test_ensure_local_registry_available_prefers_selected_env_over_global_mode(monkeypatch, tmp_path):
    """Regression: Service (k3s) selection must not trigger localhost/k3d registry checks."""

    def _unexpected_ping(*_args, **_kwargs):
        raise AssertionError("_http_ping_registry should not be called for k3s branch")

    def _unexpected_run(*args, **kwargs):
        raise AssertionError(f"subprocess.run should not be used for k3s branch: {args}")

    monkeypatch.setattr(docker_mod, "_http_ping_registry", _unexpected_ping)
    monkeypatch.setattr(docker_mod.subprocess, "run", _unexpected_run)

    screen = _DummyDockerScreen(tmp_path)
    info = screen.ensure_local_registry_available()
    assert info == (
        "myrddin.prole.org:5000",
        "registry.knoe-system.svc.cluster.local:5000",
    )