import redis, json, os

REDIS_HOST=os.environ.get("REDIS_HOST","redis")
r=redis.Redis(host=REDIS_HOST, port=6379, db=0)

QUEUE="tts_queue"
RESULT="tts_result"

def fetch_job():
    data=r.rpop(QUEUE)
    if not data:
        return None
    return json.loads(data)

def store_result(job_id:str, audio:bytes, mime:str):
    key=f"{RESULT}:{job_id}"
    obj={"audio": audio.hex(), "mime": mime}
    r.set(key, json.dumps(obj))