from __future__ import annotations

from datetime import datetime, timezone
from pathlib import Path

import yaml
from kubernetes import client, config


CONFIG_PATH = Path(__file__).with_name("config.yaml")


def _load_config() -> dict:
    with CONFIG_PATH.open("r", encoding="utf-8") as handle:
        return yaml.safe_load(handle) or {}


def _load_kube():
    try:
        config.load_incluster_config()
    except config.ConfigException:
        config.load_kube_config()


def test_glue_cronjobs_recent_success():
    cfg = _load_config()
    max_age_hours = int(cfg.get("max_success_age_hours", 48))
    allow_suspended = set(cfg.get("allow_suspended", []))

    _load_kube()
    batch = client.BatchV1Api()
    cronjobs = batch.list_cron_job_for_all_namespaces(label_selector="atlas.bstein.dev/glue=true").items

    assert cronjobs, "No glue cronjobs found with atlas.bstein.dev/glue=true"

    now = datetime.now(timezone.utc)
    for cronjob in cronjobs:
        name = f"{cronjob.metadata.namespace}/{cronjob.metadata.name}"
        if cronjob.spec.suspend:
            assert name in allow_suspended, f"{name} is suspended but not in allow_suspended"
            continue

        last_success = cronjob.status.last_successful_time
        assert last_success is not None, f"{name} has no lastSuccessfulTime"
        age_hours = (now - last_success).total_seconds() / 3600
        assert age_hours <= max_age_hours, f"{name} last success {age_hours:.1f}h ago"