import random
from typing import Optional

import requests


def http_get(url: str) -> Optional[str]:
    response = requests.get(url)
    if response.status_code == 200:
        return response.text
    return None


def proc(proba_percentage: int) -> bool:
    return random.random() < (proba_percentage / 100.0)


def limit_text_length(text, max_length=400):
    """Limit text size to 400 characters max."""
    words = text.split(" ")
    cut_text = ""
    while words:
        next_word = words.pop(0)
        if len(cut_text) + len(next_word) + 1 >= max_length:
            break
        cut_text += next_word + " "
    if len(cut_text) < len(text):
        cut_text = cut_text[:-1] + "…"
    else:
        cut_text = cut_text.rstrip()
    return cut_text