"""IMO Answer Bench. Community-curated (evalscope); no official upstream release."""

from ..sample import Sample
from ..registry import register_dataset
from ..spec import DatasetSpec


@register_dataset(
    DatasetSpec(
        name='imo_answerbench',
        source='OpenEvals/IMO-AnswerBench',  # HF OpenEvals mirror of the community curation
        split='train',  # the dataset ships a single split
        task_type='math',
        tags=['math', 'competition', 'imo'],
        description='IMO-level answer bench (community-curated, no official upstream).',
        params={'hub': 'hf_raw'},
    )
)
def imo_answerbench():
    def to_sample(record: dict) -> Sample:
        return Sample(
            input=record['Problem'],
            target=str(record['Short Answer']).strip(),
            metadata={
                'id': record.get('Problem ID'),
                'category': record.get('Category'),
                'subcategory': record.get('Subcategory'),
                'source': record.get('Source'),
            },
        )

    return to_sample