import hashlib
import pathlib
import sys

packages_dir = pathlib.Path(sys.argv[1]).resolve().absolute()

print('Showing hash values of files to be uploaded:')

for file_object in packages_dir.iterdir():
    sha256 = hashlib.sha256()
    md5 = hashlib.md5()  # noqa: S324; only use for reference
    blake2_256 = hashlib.blake2b(digest_size=256 // 8)

    print(file_object)
    print('')

    content = file_object.read_bytes()

    sha256.update(content)
    md5.update(content)
    blake2_256.update(content)

    print(f'SHA256: {sha256.hexdigest()}')
    print(f'MD5: {md5.hexdigest()}')
    print(f'BLAKE2-256: {blake2_256.hexdigest()}')
    print('')