import itertools
import random
import re
import string
from datetime import datetime

ONLY_ASCII_LETTERS = string.ascii_letters
DIGITS_AND_ASCII_LETTERS = string.ascii_letters + string.digits
NON_DIGITS_AND_LETTERS = string.punctuation

# if unique_name is called multiple times within the same microsecond, append 0-4 to the name so it surely unique
FUSE = itertools.cycle(range(5))


def unique_name(prefix: str = "", postfix: str = ""):
    """
    Generate unique short name of anything with prefix.
    This should be unique in scope of multiple runs

    Args:
        prefix: prefix for unique name generation
    Returns:
        unique name string
    """
    return f"{prefix}{hex(int(datetime.now().timestamp() * 1000000))}{next(FUSE)}{postfix}"


def random_string(length: int = 5, source: str = ONLY_ASCII_LETTERS):
    """
    Generate random string from source letters list

    Args:
         length: length for generated string
         source: source string with letters for generate random string
    Returns:
        (str): random string with len == length
    """

    return "".join(random.choice(source) for i in range(length))


def is_str_match_pattern(error: Exception, status_pattern: str) -> bool:
    """
    Determines whether exception matches specified status pattern.

    We use re.search() to be consistent with pytest.raises.
    """
    match = re.search(status_pattern, str(error))

    return match is not None