"""
Export utilities
"""

import json


def prepare_export(items_with_positive, feedback_scores, feedback_comments=None):
    """
    Prépare les données pour l'export avec identifiants uniques

    Args:
        items_with_positive: Liste de tuples (original_idx, item)
        feedback_scores: Dict {idx: score}
        feedback_comments: Dict {idx: comment} (optionnel)

    Returns:
        Liste de dicts prêts pour l'export
    """
    export_data = []

    for original_idx, item in items_with_positive:
        if original_idx in feedback_scores:
            export_item = {
                'code': item.get('anchor', item.get('code', '')),
                'positive_feedback': item.get('positive', ''),
                'score': feedback_scores[original_idx],
            }

            # Add unique identifiers for merging
            # Priority: code_id > author_id > hash of content
            if 'code_id' in item:
                export_item['code_id'] = item['code_id']
            if 'author_id' in item:
                export_item['author_id'] = item['author_id']

            # Add optional fields
            if 'language' in item:
                export_item['language'] = item['language']

            # Add comment if exists
            if feedback_comments and original_idx in feedback_comments:
                comment = feedback_comments[original_idx]
                if comment.strip():
                    export_item['comment'] = comment

            # Add original index for reference (local to this file)
            export_item['original_index'] = original_idx

            export_data.append(export_item)

    return export_data


def export_to_jsonl(export_data):
    """
    Convertit les données en format JSONL

    Args:
        export_data: Liste de dicts

    Returns:
        String JSONL
    """
    return "\n".join(json.dumps(item, ensure_ascii=False) for item in export_data)