import os
import time
import urllib.request


base_url = os.getenv("E2E_BASE_URL", "http://web").rstrip("/")
health_url = os.getenv("E2E_HEALTH_URL", f"{base_url}/")
deadline = time.time() + int(os.getenv("E2E_WEB_TIMEOUT_SECONDS", "120"))
last_error = None

while time.time() < deadline:
    try:
        with urllib.request.urlopen(health_url, timeout=5) as response:
            if response.status < 500:
                break
    except Exception as exc:
        last_error = exc
    time.sleep(2)
else:
    raise SystemExit(f"Timed out waiting for {health_url}: {last_error}")

with urllib.request.urlopen(f"{base_url}/", timeout=5) as response:
    if response.status >= 500:
        raise SystemExit(f"Web returned HTTP {response.status} at {base_url}/")