import argparse
import os
from pathlib import Path
from dotenv import load_dotenv
from huggingface_hub import HfApi

load_dotenv()

MODELS_ROOT = Path("models")
VALID_MODES = ("marker", "qa_m", "qa_b", "fasttext")
REPO_PREFIX = "lamossta/distillbert"
FASTTEXT_REPO = "lamossta/fasttext_baseline"


def _repo_id(mode: str) -> str:
    if mode == "fasttext":
        return FASTTEXT_REPO
    return f"{REPO_PREFIX}_{mode}"


def _model_filename(mode: str) -> str:
    return "model.bin" if mode == "fasttext" else "model.onnx"


def upload_model(mode: str, revision: str = "main") -> None:
    token = os.environ.get("HF_TOKEN")
    api = HfApi(token=token)
    model_dir = MODELS_ROOT / mode
    repo_id = _repo_id(mode)
    filename = _model_filename(mode)
    model_path = model_dir / filename

    if not model_path.exists():
        raise FileNotFoundError(f"Model file not found: {model_path}")

    api.create_repo(repo_id, exist_ok=True, token=token)

    api.upload_file(
        repo_id=repo_id,
        path_or_fileobj=str(model_path),
        path_in_repo=filename,
        revision=revision,
        token=token,
    )
    print(f"Uploaded '{mode}' model to {repo_id}/{filename}")


def upload_all(revision: str = "main") -> list[str]:
    uploaded = []
    for mode in VALID_MODES:
        model_path = MODELS_ROOT / mode / _model_filename(mode)
        if not model_path.exists():
            print(f"Skipping '{mode}': {model_path} not found")
            continue
        upload_model(mode, revision)
        uploaded.append(mode)
    return uploaded


def main():
    parser = argparse.ArgumentParser(description="Upload ONNX models to Hugging Face")
    parser.add_argument("--mode", default=None, choices=VALID_MODES, help="Single mode to upload (default: all)")
    parser.add_argument("--revision", default="main")
    args = parser.parse_args()

    if args.mode:
        upload_model(args.mode, args.revision)
    else:
        uploaded = upload_all(args.revision)
        print(f"Uploaded models: {uploaded}")


if __name__ == "__main__":
    main()