"""Duplicate image URL logging."""

import logging
from datetime import datetime

from image_resizer.config import DUPLICATE_LOG_PATH
from image_resizer.models import DuplicateRecord

logger = logging.getLogger(__name__)


def log_duplicates(records: list[DuplicateRecord]) -> None:
  """Append duplicate URL entries to the log file."""
  if not records:
    return

  timestamp = datetime.now().isoformat(timespec="seconds")
  lines: list[str] = []
  for record in records:
    lines.append(
      f"{timestamp}\t{record['row']}\t{record['original_row']}\t"
      f"{record['sheet']}\t{record['column']}\t{record['url']}\t"
      f"{record['name']}\t{record['original_name']}\n"
    )

  try:
    with open(DUPLICATE_LOG_PATH, "a", encoding="utf-8") as f:
      f.writelines(lines)
  except OSError as e:
    logger.error("Could not write to %s: %s", DUPLICATE_LOG_PATH, e)