import sys
import argparse
from pathlib import Path
from ..configuration import Config
from ..message import Message, MessageError


def print_cmd(args: argparse.Namespace, config: Config) -> None:
    """
    Handler for the 'print' command.
    """
    fname = Path(args.file)
    try:
        message = Message.from_file(fname)
        if message:
            if args.question:
                print(message.question)
            elif args.answer:
                print(message.answer)
            elif message.answer and args.only_source_code:
                for code in message.answer.source_code():
                    print(code)
            else:
                print(message.to_str())
    except MessageError:
        print(f"File is not a valid message: {args.file}")
        sys.exit(1)