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"""RunPod Serverless worker: one Jev/SystemOne request (or a list) per job, billed per second.

Job input: {"input": <request>} or {"input": {"requests": [<request>, ...]}}.
The model loads once per worker from DECIDER_MODEL (repo id or folder).
"""
import os
import sys

import runpod
import torch
from huggingface_hub import snapshot_download

MODEL = os.environ.get("DECIDER_MODEL", "Jeetu456/decider-2b")
path = MODEL if os.path.isdir(MODEL) else snapshot_download(MODEL)
sys.path.insert(0, path)
from decider_model import SchemaError, load_release_model, systemone  # noqa: E402

model = load_release_model(path, device="cuda" if torch.cuda.is_available() else "cpu")


def handler(job):
    request = job["input"]
    try:
        if isinstance(request, dict) and "requests" in request:
            return [systemone(model, r) for r in request["requests"]]
        return systemone(model, request)
    except (SchemaError, ValueError) as error:
        return {"error": str(error)}


if __name__ == "__main__":
    runpod.serverless.start({"handler": handler})