"""Download the base NLLB model and push a deploy-ready copy to the Hub.

Pushes both the weights/tokenizer and the Inference-Endpoints artifacts
(`handler.py`, `requirements.txt`, `README.md`) so a subsequent
"Deploy → Inference Endpoints" click on the Hub just works.

Usage:
    hf auth login           # or set HF_TOKEN
    python model_loader.py
"""

from __future__ import annotations

from pathlib import Path

from huggingface_hub import HfApi
from transformers import AutoModelForSeq2SeqLM, AutoTokenizer

BASE = "facebook/nllb-200-distilled-600M"
REPO = "ericaRC/example"

ENDPOINT_FILES = ("handler.py", "requirements.txt", "README.md", "TROUBLESHOOTING.md")


def push_weights() -> None:
    tokenizer = AutoTokenizer.from_pretrained(BASE)
    model = AutoModelForSeq2SeqLM.from_pretrained(BASE)

    tokenizer.push_to_hub(REPO)
    model.push_to_hub(REPO)


def push_endpoint_files() -> None:
    api = HfApi()
    api.create_repo(REPO, exist_ok=True)
    repo_root = Path(__file__).resolve().parent
    for name in ENDPOINT_FILES:
        path = repo_root / name
        if not path.exists():
            print(f"[skip] {name} not found next to model_loader.py")
            continue
        api.upload_file(
            path_or_fileobj=str(path),
            path_in_repo=name,
            repo_id=REPO,
            commit_message=f"Update {name}",
        )
        print(f"[ok] uploaded {name}")


if __name__ == "__main__":
    push_weights()
    push_endpoint_files()