# -*- coding: utf-8 -*-

import bz2
import zlib
import snappy

def compress_bz2(data):
    if isinstance(data, str):
        prepared = data.encode('utf-8')
    else:
        prepared = data
    obj = bz2.compress(prepared, compresslevel=9)
    return obj

def decompress_bz2(data):
    return bz2.decompress(data)

def compress_zlib(data):
    if isinstance(data, str):
        prepared = data.encode('utf-8')
    else:
        prepared = data
    return zlib.compress(prepared, level=9)

def decompress_zlib(data):
    return zlib.decompress(data)

def compress_snappy(data):
    return snappy.compress(data)

def decompress_snappy(data):
    return snappy.decompress(data)

def no_compression(data):
    return data

def no_decompression(data):
    return data