"""MAS facility power render (MAS-WP-0007). No cluster."""

import importlib.util
from pathlib import Path

import pytest

ROOT = Path(__file__).resolve().parents[1]
_spec = importlib.util.spec_from_file_location(
    "facility", ROOT / "deploy/railiance/facility.py"
)
_facility = importlib.util.module_from_spec(_spec)
_spec.loader.exec_module(_facility)
render = _facility.render
MANIFEST = (ROOT / "deploy/railiance/manifests.yaml").read_text()
POWER = (ROOT / "deploy/railiance/power.sh").read_text()
APPLY = (ROOT / "deploy/railiance/apply.sh").read_text()
IMAGE = "docker.io/library/mas-live:v0.2-480e69a"
DURABLE = (
    "kind: PersistentVolumeClaim",
    "name: mas-evidence",
    "name: mas-smtp",
    "kind: Ingress",
    "kind: ExternalSecret",
    "name: mas-relay",
)


def docs(text):
    return text.split("\n---\n")


def deployment(text, name):
    for doc in docs(text):
        if doc.startswith("apiVersion: apps/v1") and f"\n  name: {name}\n" in doc:
            return doc
    raise AssertionError(name)


def test_off_stops_both_deployments_and_keeps_durable_objects():
    rendered = render(MANIFEST, IMAGE, "off")
    assert rendered.count("\n  replicas: 0\n") == 2
    assert "replicas: 1" not in rendered
    for name in ("mas-mx", "mas-statute"):
        assert "\n  replicas: 0\n" in deployment(rendered, name)
    for marker in DURABLE:
        assert marker in rendered
    assert f"image: {IMAGE}" in rendered
    assert "image: IMAGE" not in rendered


def test_on_leaves_one_replica_each():
    rendered = render(MANIFEST, IMAGE, "on")
    assert rendered.count("\n  replicas: 1\n") == 2
    assert "replicas: 0" not in rendered
    for marker in DURABLE:
        assert marker in rendered


def test_render_rejects_unknown_power_and_a_blank_image():
    with pytest.raises(ValueError):
        render(MANIFEST, IMAGE, "standby")
    with pytest.raises(ValueError):
        render(MANIFEST, "mas live", "on")


def test_operator_command_does_not_delete_durable_objects():
    assert POWER.startswith("#!/bin/bash\n")
    for script in (POWER, APPLY):
        assert "kubectl delete" not in script
        assert "delete namespace" not in script
    assert "mas-mx" in POWER and "mas-statute" in POWER
    assert "mas.coulomb.social/power" in POWER
    assert "facility.py render" in APPLY