# This file is part of the Trezor project.
#
# Copyright (C) 2012-2018 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.

from binascii import hexlify, unhexlify
import pytest

from .common import TrezorTest


class TestMsgCipherkeyvalue(TrezorTest):

    def test_encrypt(self):
        self.setup_mnemonic_nopin_nopassphrase()

        # different ask values
        res = self.client.encrypt_keyvalue([0, 1, 2], b"test", b"testing message!", ask_on_encrypt=True, ask_on_decrypt=True)
        assert hexlify(res) == b'676faf8f13272af601776bc31bc14e8f'

        res = self.client.encrypt_keyvalue([0, 1, 2], b"test", b"testing message!", ask_on_encrypt=True, ask_on_decrypt=False)
        assert hexlify(res) == b'5aa0fbcb9d7fa669880745479d80c622'

        res = self.client.encrypt_keyvalue([0, 1, 2], b"test", b"testing message!", ask_on_encrypt=False, ask_on_decrypt=True)
        assert hexlify(res) == b'958d4f63269b61044aaedc900c8d6208'

        res = self.client.encrypt_keyvalue([0, 1, 2], b"test", b"testing message!", ask_on_encrypt=False, ask_on_decrypt=False)
        assert hexlify(res) == b'e0cf0eb0425947000eb546cc3994bc6c'

        # different key
        res = self.client.encrypt_keyvalue([0, 1, 2], b"test2", b"testing message!", ask_on_encrypt=True, ask_on_decrypt=True)
        assert hexlify(res) == b'de247a6aa6be77a134bb3f3f925f13af'

        # different message
        res = self.client.encrypt_keyvalue([0, 1, 2], b"test", b"testing message! it is different", ask_on_encrypt=True, ask_on_decrypt=True)
        assert hexlify(res) == b'676faf8f13272af601776bc31bc14e8f3ae1c88536bf18f1b44f1e4c2c4a613d'

        # different path
        res = self.client.encrypt_keyvalue([0, 1, 3], b"test", b"testing message!", ask_on_encrypt=True, ask_on_decrypt=True)
        assert hexlify(res) == b'b4811a9d492f5355a5186ddbfccaae7b'

    def test_decrypt(self):
        self.setup_mnemonic_nopin_nopassphrase()

        # different ask values
        res = self.client.decrypt_keyvalue([0, 1, 2], b"test", unhexlify("676faf8f13272af601776bc31bc14e8f"), ask_on_encrypt=True, ask_on_decrypt=True)
        assert res == b'testing message!'

        res = self.client.decrypt_keyvalue([0, 1, 2], b"test", unhexlify("5aa0fbcb9d7fa669880745479d80c622"), ask_on_encrypt=True, ask_on_decrypt=False)
        assert res == b'testing message!'

        res = self.client.decrypt_keyvalue([0, 1, 2], b"test", unhexlify("958d4f63269b61044aaedc900c8d6208"), ask_on_encrypt=False, ask_on_decrypt=True)
        assert res == b'testing message!'

        res = self.client.decrypt_keyvalue([0, 1, 2], b"test", unhexlify("e0cf0eb0425947000eb546cc3994bc6c"), ask_on_encrypt=False, ask_on_decrypt=False)
        assert res == b'testing message!'

        # different key
        res = self.client.decrypt_keyvalue([0, 1, 2], b"test2", unhexlify("de247a6aa6be77a134bb3f3f925f13af"), ask_on_encrypt=True, ask_on_decrypt=True)
        assert res == b'testing message!'

        # different message
        res = self.client.decrypt_keyvalue([0, 1, 2], b"test", unhexlify("676faf8f13272af601776bc31bc14e8f3ae1c88536bf18f1b44f1e4c2c4a613d"), ask_on_encrypt=True, ask_on_decrypt=True)
        assert res == b'testing message! it is different'

        # different path
        res = self.client.decrypt_keyvalue([0, 1, 3], b"test", unhexlify("b4811a9d492f5355a5186ddbfccaae7b"), ask_on_encrypt=True, ask_on_decrypt=True)
        assert res == b'testing message!'

    def test_encrypt_badlen(self):
        self.setup_mnemonic_nopin_nopassphrase()
        with pytest.raises(Exception):
            self.client.encrypt_keyvalue([0, 1, 2], b"test", b"testing")

    def test_decrypt_badlen(self):
        self.setup_mnemonic_nopin_nopassphrase()
        with pytest.raises(Exception):
            self.client.decrypt_keyvalue([0, 1, 2], b"test", b"testing")