from string import ascii_letters, digits, punctuation
from nsz.nut import Print


def bufferToHex(buffer, start, count):
    accumulator = ""
    for item in range(count):
        accumulator += "%02X" % buffer[start + item] + " "
    return accumulator


def bufferToAscii(buffer, start, count):
    accumulator = ""
    for item in range(count):
        char = chr(buffer[start + item])
        if (
            char in ascii_letters
            or char in digits
            or char in punctuation
            or char == " "
        ):
            accumulator += char
        else:
            accumulator += "."
    return accumulator


def dump(data, size=16):
    bytesRead = len(data)
    index = 0
    hexFormat = "{:" + str(size * 3) + "}"
    asciiFormat = "{:" + str(size) + "}"

    Print.info("\n")
    while index < bytesRead:
        hex = bufferToHex(data, index, size)
        ascii = bufferToAscii(data, index, size)

        Print.info(hexFormat.format(hex) + "|" + asciiFormat.format(ascii) + "|")

        index += size
        if bytesRead - index < size:
            size = bytesRead - index