import helper, cryptlib

def bruteforce_xor(hexstring_list):
    plaintext_candidates = []

    for i in range(len(hexstring_list)):
        hexstring = hexstring_list[i]
        for key in range(256):
            decrypt = cryptlib.single_byte_xor(hexstring, key)
            english_score = cryptlib.score_english_lang(decrypt) 
            result = {
                'line': i+1,
                'key': key,
                'score': english_score,
                'plaintext': decrypt.strip(),
                'cipertext': hexstring
            }
            plaintext_candidates.append(result)
    return plaintext_candidates

def main():
    content = helper.read_file("data/04.txt")
    hexstring_list = content.splitlines()
    plaintext_candidates = bruteforce_xor(hexstring_list)
    print(sorted(plaintext_candidates, key=lambda c: c['score'], reverse=True)[0])

if __name__ == '__main__':
    main()