# coding=utf-8

import os
import zlib
import hashlib

##### MAGIC STUFF FOR GODNOTA DETECTION #####
aiMagicDust4tw = "anivisa3-win" #","
aiMagicDust4tf = "anivisa3-fail" #","

def md5(fname):
    hash_md5 = hashlib.md5()
    with open(fname, "rb") as f:
        for chunk in iter(lambda: f.read(4096), b""):
            hash_md5.update(chunk)
    return hash_md5.hexdigest()

def detectGodnotaWithSalt(magicDust,contestItems):
	md5winarray = sorted(contestItems, key=str.lower, reverse=False)
	md5winhash = magicDust.join(md5winarray)
	md5wincrc = zlib.crc32(md5winhash)
	win_index = md5wincrc%len(contestItems)
	win_item = md5winarray[win_index]
	return win_item

md5map = {}
md5array = []

print("Reading novells...")
for file in os.listdir("./"):
	if str.lower(file).endswith(".zip") or str.lower(file).endswith(".rar") or str.lower(file).endswith(".exe"):
		file_hash = md5("./"+file)
		md5map[file_hash] = file
		md5array.append(file_hash)
		print(file + ": " + file_hash)

print("Calculating ratings of "+ str(len(md5array)) +" novells...")
win_md5 = detectGodnotaWithSalt(aiMagicDust4tw,md5array)
fail_md5 = detectGodnotaWithSalt(aiMagicDust4tf,md5array)

print("Done! Contest results:")
print("Anon-win: magic dust="+aiMagicDust4tw+", winner hash="+win_md5+", file="+md5map[win_md5])
print("Anon-fail: magic dust="+aiMagicDust4tf+", looser hash="+fail_md5+", file="+md5map[fail_md5])