from math import floor
from typing import Dict
from million.model.message import Message

memoization: Dict[Message, int] = {}

# TODO WIP
# - DNS to resolve audio, gif, pictures with counts
def __compute__(msg: Message) -> int:
    """ Returns the estimated value counted in this message
    """
    value = None
    # Remove any number that is not a digit
    # TODO parse potential math expressions in content
    cleaned_content = ''.join([c for c in msg.content if c.isdigit()])
    try:
        value = floor(float(cleaned_content))
    except Exception as e:
        raise ValueError(
            f"Message {cleaned_content} does not contain a number ({e})")
    
    memoization[msg] = value
    return value

def get(msg: Message) -> int:
    return memoization.get(msg, __compute__(msg))