"""Upload one audited strict640x480-v2 task atomically to the public Hub repo."""
from __future__ import annotations

import argparse
import json
import os
from io import BytesIO
from pathlib import Path

from huggingface_hub import CommitOperationAdd, HfApi
from huggingface_hub._commit_api import _fetch_upload_modes


def main() -> None:
    parser = argparse.ArgumentParser()
    parser.add_argument("--task", required=True)
    parser.add_argument("--source", required=True)
    args = parser.parse_args()
    source = Path(args.source)
    audit = source / "strict_audit.json"
    report = json.loads(audit.read_text(encoding="utf-8"))
    if report.get("status") != "PASS_STRICT640X480_V2" or report.get("episodes") != 100:
        raise ValueError(f"refusing upload of non-formal task audit: {report}")
    token = os.environ.get("HF_TOKEN")
    if not token:
        raise RuntimeError("HF_TOKEN is required for formal-data upload")
    # Upload each immutable LFS shard independently, then atomically publish a
    # completion marker containing the strict audit.  This avoids an upstream
    # huggingface_hub batch-preupload failure observed only for several 4+ GB
    # HDF5 additions in one request.  Consumers must require the final marker,
    # so a partial transfer can never be mistaken for a formal dataset.
    files = sorted(
        p for p in source.rglob("*")
        if p.is_file() and ".cache" not in p.parts and p.name != "hf_upload_receipt.json"
    )
    prefix = f"strict640x480-v2/data/{args.task}"
    api = HfApi(token=token)
    headers = api._build_hf_headers(token=token)
    repo_id = "B111ue/RoboFactory-5Task-RGBD-Decentralized"
    remote_files = set(api.list_repo_files(repo_id=repo_id, repo_type="dataset", token=token))
    for file in files:
        remote_path = f"{prefix}/{file.relative_to(source).as_posix()}"
        if remote_path in remote_files:
            print(f"HF_FILE_ALREADY_PRESENT {remote_path}")
            continue
        operation = CommitOperationAdd(path_in_repo=remote_path, path_or_fileobj=str(file))
        # Explicitly set the upload mode with the verified authenticated
        # headers.  hub 1.25's normal multi-GB commit path can repeat this
        # preflight without the token; once an LFS operation is preuploaded,
        # create_commit correctly skips that duplicate request.
        _fetch_upload_modes(
            additions=[operation],
            repo_type="dataset",
            repo_id=repo_id,
            headers=headers,
            revision="main",
            endpoint=api.endpoint,
        )
        if operation._upload_mode == "lfs":
            api.preupload_lfs_files(
                repo_id=repo_id,
                additions=[operation],
                token=token,
                repo_type="dataset",
                revision="main",
                num_threads=1,
                free_memory=False,
            )
        api.create_commit(
            repo_id=repo_id,
            repo_type="dataset",
            operations=[operation],
            commit_message=f"strict640x480-v2: stage {args.task}/{file.name}",
            token=token,
            num_threads=1,
        )
        print(f"HF_FILE_COMMITTED {remote_path}")
    receipt = {"task": args.task, "audit": report, "status": "COMPLETE_STRICT640X480_V2"}
    result = api.create_commit(
        repo_id=repo_id,
        repo_type="dataset",
        operations=[CommitOperationAdd(
            path_in_repo=f"{prefix}/hf_upload_receipt.json",
            path_or_fileobj=BytesIO(json.dumps(receipt, indent=2).encode("utf-8")),
        )],
        commit_message=f"strict640x480-v2: publish audited {args.task} (100 demos)",
        token=token,
        num_threads=1,
    )
    (source / "hf_upload_receipt.json").write_text(json.dumps({**receipt, "revision": str(result)}, indent=2), encoding="utf-8")
    print(f"HF_UPLOAD_VERIFIED {args.task} {result}")


if __name__ == "__main__":
    main()