"""Insert processing audit log entries within an existing DB transaction."""

import json
import logging
from datetime import datetime, timezone
from typing import List, Optional

logger = logging.getLogger(__name__)


def insert_log(
    cursor,
    video_id: int,
    model_version: str,
    frame_count: int,
    confidence_score: Optional[float],
    routing_decision: str,
    frame_confidences: Optional[List[float]] = None,
) -> None:
    """Insert one row into processing_logs; must be called inside an open transaction."""
    now = datetime.now(timezone.utc).replace(tzinfo=None)
    confidence_scores_json = json.dumps(frame_confidences) if frame_confidences is not None else None

    cursor.execute(
        """INSERT INTO processing_logs
               (video_id, model_version, frame_count, confidence_score,
                confidence_scores, routing_decision, processed_at)
           VALUES (%s, %s, %s, %s, %s, %s, %s)""",
        (
            video_id,
            model_version,
            frame_count or 0,
            confidence_score,
            confidence_scores_json,
            routing_decision,
            now,
        ),
    )
    logger.debug("Inserted processing log for video %s (routing=%s)", video_id, routing_decision)