"""Clean fixture — the corrected version of every pattern in buggy_sample.py.
The detector should report ZERO findings here (false-positive guard)."""
import os
import logging
import redis

log = logging.getLogger(__name__)
DB_PASSWORD = os.environ["DB_PASSWORD"]            # read from env, not inline


def record_metric(name, value):
    try:
        r = redis.Redis(host=os.environ.get("CACHE_HOST", "localhost"))
        r.hset("metrics", name, value)
    except Exception:
        log.exception("metric write failed for %s", name)   # logs, not swallowed
        raise


def compute_total(items):
    running = 0                       # initialized
    for item in items:
        running += item
    return running


def is_killed():
    client = redis.from_url(os.environ.get("FLAG_REDIS_URL", "redis://localhost"))
    val = client.get("kill_switch")
    if val is None:                   # presence assert -> fail CLOSED
        raise RuntimeError("kill flag missing; refusing to arm")
    return val == b"1"


def daemon():
    while True:
        token = os.environ.get("API_TOKEN")   # re-read each loop, rotation-safe
        call_api(token)


def call_api(token):
    ...