# 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/>.


from .common import *

from trezorlib import coins
from trezorlib import messages as proto

TxApiZcash = coins.tx_api["Zcash"]


TXHASH_93373e = unhexlify('93373e63cc626c4a7d049ad775d6511bb5eba985f142db660c9b9f955c722f5c')


# Zcash reset their testnet, which broke our test because it was not properly cached.
# Then when we tried to revive it, Overwinter happened and now Trezor is incapable of
# processing v3 transactions. So it's difficult to fix the test until we support v3.
@pytest.mark.zcash
@pytest.mark.xfail(reason="Zcash support is botched due to Overwinter")
class TestMsgSigntxZcash(TrezorTest):

    def test_one_one_fee(self):
        self.setup_mnemonic_allallall()

        # tx: 93373e63cc626c4a7d049ad775d6511bb5eba985f142db660c9b9f955c722f5c
        # input 0: 1.234567 TAZ

        inp1 = proto.TxInputType(
            address_n=[2147483692, 2147483649, 2147483648, 0, 0],  # tmQoJ3PTXgQLaRRZZYT6xk8XtjRbr2kCqwu
            # amount=123456700,
            prev_hash=TXHASH_93373e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address='tmJ1xYxP8XNTtCoDgvdmQPSrxh5qZJgy65Z',
            amount=123456700 - 1940,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        with self.client:
            self.client.set_tx_api(TxApiZcash)
            self.client.set_expected_responses([
                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_93373e)),
                proto.TxRequest(request_type=proto.RequestType.TXOUTPUT, details=proto.TxRequestDetailsType(request_index=0, tx_hash=TXHASH_93373e)),
                proto.TxRequest(request_type=proto.RequestType.TXEXTRADATA, details=proto.TxRequestDetailsType(tx_hash=TXHASH_93373e, extra_data_offset=0, extra_data_len=1024)),
                proto.TxRequest(request_type=proto.RequestType.TXEXTRADATA, details=proto.TxRequestDetailsType(tx_hash=TXHASH_93373e, extra_data_offset=1024, extra_data_len=1024)),
                proto.TxRequest(request_type=proto.RequestType.TXEXTRADATA, details=proto.TxRequestDetailsType(tx_hash=TXHASH_93373e, extra_data_offset=2048, extra_data_len=1024)),
                proto.TxRequest(request_type=proto.RequestType.TXEXTRADATA, details=proto.TxRequestDetailsType(tx_hash=TXHASH_93373e, extra_data_offset=3072, extra_data_len=629)),
                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),
            ])

            (signatures, serialized_tx) = self.client.sign_tx('Zcash', [inp1, ], [out1, ])

        # Accepted by network: tx dcc2a10894e0e8a785c2afd4de2d958207329b9acc2b987fd768a09c5efc4547
        assert hexlify(serialized_tx) == b'01000000015c2f725c959f9b0c66db42f185a9ebb51b51d675d79a047d4a6c62cc633e3793000000006a4730440220670b2b63d749a7038f9aea6ddf0302fe63bdcad93dafa4a89a1f0e7300ae2484022002c50af43fd867490cea0c527273c5828ff1b9a5115678f155a1830737cf29390121030e669acac1f280d1ddf441cd2ba5e97417bf2689e4bbec86df4f831bf9f7ffd0ffffffff0128c55b07000000001976a9145b157a678a10021243307e4bb58f36375aa80e1088ac00000000'