# This file is part of the TREZOR project.
#
# Copyright (C) 2012-2016 Marek Palatinus <slush@satoshilabs.com>
# Copyright (C) 2012-2016 Pavol Rusnak <stick@satoshilabs.com>
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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 GNU Lesser General Public License
# along with this library.  If not, see <http://www.gnu.org/licenses/>.

import unittest
from . import common
import binascii

from trezorlib import messages as proto


TXHASH_d5f65e = binascii.unhexlify('d5f65ee80147b4bcc70b75e4bbf2d7382021b871bd8867ef8fa525ef50864882')


class TestProtectionLevels(common.TrezorTest):

    def test_initialize(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([proto.Features()])
            self.client.init_device()

    def test_apply_settings(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.PinMatrixRequest(),
                proto.ButtonRequest(),
                proto.Success(),
                proto.Features()
            ])  # TrezorClient reinitializes device
            self.client.apply_settings(label='nazdar')

    def test_change_pin(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.ButtonRequest(),
                proto.PinMatrixRequest(),
                proto.PinMatrixRequest(),
                proto.PinMatrixRequest(),
                proto.Success(),
                proto.Features()
            ])
            self.client.change_pin()

    def test_ping(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.ButtonRequest(),
                proto.PinMatrixRequest(),
                proto.PassphraseRequest(),
                proto.Success()
            ])
            self.client.ping('msg', True, True, True)

    def test_get_entropy(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.ButtonRequest(),
                proto.Entropy()
            ])
            self.client.get_entropy(10)

    def test_get_public_key(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.PinMatrixRequest(),
                proto.PassphraseRequest(),
                proto.PublicKey()
            ])
            self.client.get_public_node([])

    def test_get_address(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.PinMatrixRequest(),
                proto.PassphraseRequest(),
                proto.Address()
            ])
            self.client.get_address('Bitcoin', [])

    def test_wipe_device(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.ButtonRequest(),
                proto.Success(),
                proto.Features()
            ])
            self.client.wipe_device()

    def test_load_device(self):
        with self.client:
            self.client.set_expected_responses([proto.ButtonRequest(),
                                                proto.Success(),
                                                proto.Features()])
            self.client.load_device_by_mnemonic('this is mnemonic', '1234', True, 'label', 'english', skip_checksum=True)

        # This must fail, because device is already initialized
        self.assertRaises(Exception, self.client.load_device_by_mnemonic,
                          'this is mnemonic', '1234', True, 'label', 'english', skip_checksum=True)

    def test_reset_device(self):
        with self.client:
            self.client.set_expected_responses([proto.EntropyRequest()] + [proto.ButtonRequest()] * 24 + [proto.Success(), proto.Features()])
            self.client.reset_device(False, 128, True, False, 'label', 'english')

        # This must fail, because device is already initialized
        self.assertRaises(Exception, self.client.reset_device, False, 128, True, False, 'label', 'english')

    def test_recovery_device(self):
        with self.client:
            self.client.set_mnemonic(self.mnemonic12)
            self.client.set_expected_responses([proto.WordRequest()] * 24 + [proto.Success(), proto.Features()])
            self.client.recovery_device(12, False, False, 'label', 'english')

        # This must fail, because device is already initialized
        self.assertRaises(Exception, self.client.recovery_device, 12, False, False, 'label', 'english')

    def test_sign_message(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([
                proto.ButtonRequest(),
                proto.PinMatrixRequest(),
                proto.PassphraseRequest(),
                proto.MessageSignature()
            ])
            self.client.sign_message('Bitcoin', [], 'testing message')

    def test_verify_message(self):
        with self.client:
            self.setup_mnemonic_pin_passphrase()
            self.client.set_expected_responses([proto.ButtonRequest(), proto.Success()])
            self.client.verify_message(
                'Bitcoin',
                '14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e',
                binascii.unhexlify('209e23edf0e4e47ff1dec27f32cd78c50e74ef018ee8a6adf35ae17c7a9b0dd96f48b493fd7dbab03efb6f439c6383c9523b3bbc5f1a7d158a6af90ab154e9be80'),
                'This is an example of a signed message.')

    def test_signtx(self):
        self.setup_mnemonic_pin_passphrase()

        inp1 = proto.TxInputType(
            address_n=[0],  # 14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e
            prev_hash=TXHASH_d5f65e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address='1MJ2tj2ThBE62zXbBYA5ZaN3fdve5CPAz1',
            amount=390000 - 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        with self.client:

            self.client.set_expected_responses([
                proto.PinMatrixRequest(),
                proto.PassphraseRequest(),
                proto.TxRequest(request_type=proto.RequestType.TXINPUT, details=proto.TxRequestDetailsType(request_index=0)),
                proto.TxRequest(request_type=proto.RequestType.TXMETA, details=proto.TxRequestDetailsType(tx_hash=TXHASH_d5f65e)),
                proto.TxRequest(request_type=proto.RequestType.TXINPUT, details=proto.TxRequestDetailsType(request_index=0, tx_hash=TXHASH_d5f65e)),
                proto.TxRequest(request_type=proto.RequestType.TXINPUT, details=proto.TxRequestDetailsType(request_index=1, tx_hash=TXHASH_d5f65e)),
                proto.TxRequest(request_type=proto.RequestType.TXOUTPUT, details=proto.TxRequestDetailsType(request_index=0, tx_hash=TXHASH_d5f65e)),
                proto.TxRequest(request_type=proto.RequestType.TXOUTPUT, details=proto.TxRequestDetailsType(request_index=0)),
                proto.ButtonRequest(code=proto.ButtonRequestType.ConfirmOutput),
                proto.ButtonRequest(code=proto.ButtonRequestType.SignTx),
                proto.TxRequest(request_type=proto.RequestType.TXINPUT, details=proto.TxRequestDetailsType(request_index=0)),
                proto.TxRequest(request_type=proto.RequestType.TXOUTPUT, details=proto.TxRequestDetailsType(request_index=0)),
                proto.TxRequest(request_type=proto.RequestType.TXOUTPUT, details=proto.TxRequestDetailsType(request_index=0)),
                proto.TxRequest(request_type=proto.RequestType.TXFINISHED),
            ])
            self.client.sign_tx('Bitcoin', [inp1, ], [out1, ])

    # def test_firmware_erase(self):
    #    pass

    # def test_firmware_upload(self):
    #    pass