"""Upload a curated Objectverse Diary SFT JSONL file to Hugging Face Datasets."""

from __future__ import annotations

import argparse
import json
from pathlib import Path
from typing import Any


def validate_dataset_file(dataset_file: Path) -> dict[str, object]:
    if not dataset_file.exists() or not dataset_file.is_file():
        raise FileNotFoundError(f"Dataset file does not exist: {dataset_file}")

    record_count = 0
    sources: set[str] = set()
    modes: set[str] = set()
    object_names: set[str] = set()
    for line_number, line in enumerate(
        dataset_file.read_text(encoding="utf-8").splitlines(),
        start=1,
    ):
        if not line.strip():
            continue
        try:
            record = json.loads(line)
        except json.JSONDecodeError as exc:
            raise ValueError(f"Invalid JSON on line {line_number}: {exc.msg}") from exc
        if not isinstance(record, dict):
            raise ValueError(f"Line {line_number} must be a JSON object.")
        messages = record.get("messages")
        if not isinstance(messages, list) or not messages:
            raise ValueError(f"Line {line_number} must include a non-empty messages list.")
        assistant_messages = [
            message
            for message in messages
            if isinstance(message, dict) and message.get("role") == "assistant"
        ]
        if not assistant_messages:
            raise ValueError(f"Line {line_number} must include an assistant message.")
        assistant_content = assistant_messages[-1].get("content")
        if not isinstance(assistant_content, str):
            raise ValueError(f"Line {line_number} assistant content must be a string.")
        try:
            assistant_payload = json.loads(assistant_content)
        except json.JSONDecodeError as exc:
            raise ValueError(
                f"Line {line_number} assistant content is not valid JSON: {exc.msg}"
            ) from exc
        if not isinstance(assistant_payload, dict):
            raise ValueError(f"Line {line_number} assistant content must be a JSON object.")
        if "persona" not in assistant_payload or "diary" not in assistant_payload:
            raise ValueError(
                f"Line {line_number} assistant content must include persona and diary."
            )

        record_count += 1
        if isinstance(record.get("source"), str):
            sources.add(str(record["source"]))
        if isinstance(record.get("mode"), str):
            modes.add(str(record["mode"]))
        object_understanding = record.get("object_understanding")
        if isinstance(object_understanding, dict):
            raw_object = object_understanding.get("object")
            if isinstance(raw_object, dict) and isinstance(raw_object.get("name"), str):
                object_names.add(str(raw_object["name"]))

    if record_count == 0:
        raise ValueError(f"Dataset file has no records: {dataset_file}")

    return {
        "dataset_file": str(dataset_file),
        "record_count": record_count,
        "sources": sorted(sources),
        "modes": sorted(modes),
        "unique_object_count": len(object_names),
    }


def upload_dataset(
    *,
    dataset_file: Path,
    repo_id: str,
    path_in_repo: str,
    private: bool,
    commit_message: str,
    dry_run: bool,
) -> dict[str, object]:
    summary = validate_dataset_file(dataset_file)
    summary.update(
        {
            "repo_id": repo_id,
            "path_in_repo": path_in_repo,
            "private": private,
            "commit_message": commit_message,
            "dry_run": dry_run,
        }
    )
    if dry_run:
        summary["uploaded"] = False
        return summary

    from huggingface_hub import HfApi

    api = HfApi()
    api.create_repo(repo_id=repo_id, repo_type="dataset", private=private, exist_ok=True)
    api.upload_file(
        path_or_fileobj=str(dataset_file),
        path_in_repo=path_in_repo,
        repo_id=repo_id,
        repo_type="dataset",
        commit_message=commit_message,
    )
    summary["uploaded"] = True
    summary["url"] = f"https://huggingface.co/datasets/{repo_id}"
    return summary


def _print_json(payload: dict[str, Any]) -> None:
    print(json.dumps(payload, indent=2, sort_keys=True), flush=True)


def _parse_args() -> argparse.Namespace:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--dataset-file", type=Path, required=True)
    parser.add_argument("--repo-id", required=True)
    parser.add_argument("--path-in-repo", required=True)
    parser.add_argument("--private", action="store_true")
    parser.add_argument(
        "--commit-message",
        default="Upload Objectverse Diary curated SFT dataset",
    )
    parser.add_argument("--dry-run", action="store_true")
    return parser.parse_args()


def main() -> None:
    args = _parse_args()
    _print_json(
        upload_dataset(
            dataset_file=args.dataset_file,
            repo_id=args.repo_id,
            path_in_repo=args.path_in_repo,
            private=args.private,
            commit_message=args.commit_message,
            dry_run=args.dry_run,
        )
    )


if __name__ == "__main__":
    try:
        main()
    except Exception as exc:
        raise SystemExit(str(exc)) from exc