date.py

import arrow


def to_unix_timestamp(date_str: str) -> int:
    """
    Convert a date string to a unix timestamp (seconds since epoch).

    Args:
        date_str: The date string to convert.

    Returns:
        The unix timestamp corresponding to the date string.

    If the date string cannot be parsed as a valid date format, returns the current unix timestamp and prints a warning.
    """
    # Try to parse the date string using arrow, which supports many common date formats
    try:
        date_obj = arrow.get(date_str)
        return int(date_obj.timestamp())
    except arrow.parser.ParserError:
        # If the parsing fails, return the current unix timestamp and print a warning
        print(f"Invalid date format: {date_str}")
        return int(arrow.now().timestamp())