# This file is part of the Trezor project.
#
# Copyright (C) 2012-2019 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>.

import pytest

from trezorlib import ethereum, exceptions, messages, models
from trezorlib.debuglink import SessionDebugWrapper as Session
from trezorlib.debuglink import TrezorClientDebugLink as Client
from trezorlib.debuglink import message_filters
from trezorlib.exceptions import TrezorFailure
from trezorlib.tools import parse_path, unharden

from ...common import parametrize_using_common_fixtures
from ...input_flows import (
    InputFlowConfirmAllWarnings,
    InputFlowEthereumSignTxDataGoBack,
    InputFlowEthereumSignTxDataScrollDown,
    InputFlowEthereumSignTxDataSkip,
    InputFlowEthereumSignTxGoBackFromSummary,
    InputFlowEthereumSignTxShowFeeInfo,
    InputFlowEthereumSignTxStaking,
)
from .common import encode_network

TO_ADDR = "0x1d1c328764a41bda0492b66baa30c4a339ff85ef"


pytestmark = [pytest.mark.altcoin, pytest.mark.ethereum]


def make_defs(parameters: dict) -> messages.EthereumDefinitions:
    # With removal of most built-in defs from firmware, we have test vectors
    # that no longer run. Because this is not the place to test the definitions,
    # we generate fake entries so that we can check the signing results.
    address_n = parse_path(parameters["path"])
    slip44 = unharden(address_n[1])
    network = encode_network(chain_id=parameters["chain_id"], slip44=slip44)

    return messages.EthereumDefinitions(encoded_network=network)


@parametrize_using_common_fixtures(
    "ethereum/sign_tx.json",
    "ethereum/sign_tx_eip155.json",
)
@pytest.mark.parametrize("chunkify", (True, False))
def test_signtx(session: Session, chunkify: bool, parameters: dict, result: dict):
    input_flow = (
        InputFlowConfirmAllWarnings(session.client).get()
        if not session.client.debug.legacy_debug
        else None
    )
    _do_test_signtx(session, parameters, result, input_flow, chunkify=chunkify)


def _do_test_signtx(
    session: Session,
    parameters: dict,
    result: dict,
    input_flow=None,
    chunkify: bool = False,
):
    with session.client as client:
        if input_flow:
            client.watch_layout()
            client.set_input_flow(input_flow)
        sig_v, sig_r, sig_s = ethereum.sign_tx(
            session,
            n=parse_path(parameters["path"]),
            nonce=int(parameters["nonce"], 16),
            gas_price=int(parameters["gas_price"], 16),
            gas_limit=int(parameters["gas_limit"], 16),
            to=parameters["to_address"],
            chain_id=parameters["chain_id"],
            value=int(parameters["value"], 16),
            tx_type=parameters["tx_type"],
            data=bytes.fromhex(parameters["data"]),
            definitions=make_defs(parameters),
            chunkify=chunkify,
        )

    expected_v = 2 * parameters["chain_id"] + 35
    assert sig_v in (expected_v, expected_v + 1)
    assert sig_r.hex() == result["sig_r"]
    assert sig_s.hex() == result["sig_s"]
    assert sig_v == result["sig_v"]


# Data taken from sign_tx_eip1559.json["tests"][0]
example_input_data = {
    "parameters": {
        "chain_id": 1,
        "path": "m/44'/60'/0'/0/0",
        "nonce": "0x0",
        "gas_price": "0x4a817c800",
        "gas_limit": "0x5208",
        "value": "0x2540be400",
        "to_address": "0x8eA7a3fccC211ED48b763b4164884DDbcF3b0A98",
        "tx_type": None,
        "data": "",
    },
    "result": {
        "sig_v": 38,
        "sig_r": "6a6349bddb5749bb8b96ce2566a035ef87a09dbf89b5c7e3dfdf9ed725912f24",
        "sig_s": "4ae58ccd3bacee07cdc4a3e8540544fd009c4311af7048122da60f2054c07ee4",
    },
}


@pytest.mark.models("core", reason="T1 does not support input flows")
def test_signtx_fee_info(session: Session):
    input_flow = InputFlowEthereumSignTxShowFeeInfo(session.client).get()
    _do_test_signtx(
        session,
        example_input_data["parameters"],
        example_input_data["result"],
        input_flow,
    )


@pytest.mark.models(
    "core",
    skip="mercury",
    reason="T1 does not support input flows; Mercury can't send Cancel on Summary",
)
def test_signtx_go_back_from_summary(session: Session):
    input_flow = InputFlowEthereumSignTxGoBackFromSummary(session.client).get()
    _do_test_signtx(
        session,
        example_input_data["parameters"],
        example_input_data["result"],
        input_flow,
    )


@parametrize_using_common_fixtures("ethereum/sign_tx_eip1559.json")
@pytest.mark.parametrize("chunkify", (True, False))
def test_signtx_eip1559(
    session: Session, chunkify: bool, parameters: dict, result: dict
):
    with session, session.client as client:
        if not client.debug.legacy_debug:
            client.set_input_flow(InputFlowConfirmAllWarnings(client).get())
        sig_v, sig_r, sig_s = ethereum.sign_tx_eip1559(
            session,
            n=parse_path(parameters["path"]),
            nonce=int(parameters["nonce"], 16),
            gas_limit=int(parameters["gas_limit"], 16),
            max_gas_fee=int(parameters["max_gas_fee"], 16),
            max_priority_fee=int(parameters["max_priority_fee"], 16),
            to=parameters["to_address"],
            chain_id=parameters["chain_id"],
            value=int(parameters["value"], 16),
            data=bytes.fromhex(parameters["data"]),
            definitions=make_defs(parameters),
            chunkify=chunkify,
        )

    assert sig_r.hex() == result["sig_r"]
    assert sig_s.hex() == result["sig_s"]
    assert sig_v == result["sig_v"]


def test_sanity_checks(session: Session):
    """Is not vectorized because these are internal-only tests that do not
    need to be exposed to the public.
    """
    # contract creation without data should fail.
    with pytest.raises(TrezorFailure, match=r"DataError"):
        ethereum.sign_tx(
            session,
            n=parse_path("m/44h/60h/0h/0/0"),
            nonce=123_456,
            gas_price=20_000,
            gas_limit=20_000,
            to="",
            value=12_345_678_901_234_567_890,
            chain_id=1,
        )

    # gas overflow
    with pytest.raises(TrezorFailure, match=r"DataError"):
        ethereum.sign_tx(
            session,
            n=parse_path("m/44h/60h/0h/0/0"),
            nonce=123_456,
            gas_price=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
            gas_limit=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
            to=TO_ADDR,
            value=12_345_678_901_234_567_890,
            chain_id=1,
        )

    # bad chain ID
    with pytest.raises(TrezorFailure, match=r"Chain ID out of bounds"):
        ethereum.sign_tx(
            session,
            n=parse_path("m/44h/60h/0h/0/0"),
            nonce=123_456,
            gas_price=20_000,
            gas_limit=20_000,
            to=TO_ADDR,
            value=12_345_678_901_234_567_890,
            chain_id=0,
        )


def test_data_streaming(session: Session):
    """Only verifying the expected responses, the signatures are
    checked in vectorized function above.
    """
    with session:
        is_t1 = session.model is models.T1B1
        session.set_expected_responses(
            [
                messages.ButtonRequest(code=messages.ButtonRequestType.SignTx),
                (is_t1, messages.ButtonRequest(code=messages.ButtonRequestType.SignTx)),
                (
                    not is_t1,
                    messages.ButtonRequest(code=messages.ButtonRequestType.Other),
                ),
                messages.ButtonRequest(code=messages.ButtonRequestType.SignTx),
                message_filters.EthereumTxRequest(
                    data_length=1_024,
                    signature_r=None,
                    signature_s=None,
                    signature_v=None,
                ),
                message_filters.EthereumTxRequest(
                    data_length=1_024,
                    signature_r=None,
                    signature_s=None,
                    signature_v=None,
                ),
                message_filters.EthereumTxRequest(
                    data_length=1_024,
                    signature_r=None,
                    signature_s=None,
                    signature_v=None,
                ),
                message_filters.EthereumTxRequest(
                    data_length=3,
                    signature_r=None,
                    signature_s=None,
                    signature_v=None,
                ),
                message_filters.EthereumTxRequest(data_length=None),
            ]
        )

        ethereum.sign_tx(
            session,
            n=parse_path("m/44h/60h/0h/0/0"),
            nonce=0,
            gas_price=20_000,
            gas_limit=20_000,
            to=TO_ADDR,
            value=0,
            data=b"ABCDEFGHIJKLMNOP" * 256 + b"!!!",
            chain_id=1,
        )


def test_signtx_eip1559_access_list(session: Session):
    with session:

        sig_v, sig_r, sig_s = ethereum.sign_tx_eip1559(
            session,
            n=parse_path("m/44h/60h/0h/0/100"),
            nonce=0,
            gas_limit=20,
            to="0x1d1c328764a41bda0492b66baa30c4a339ff85ef",
            chain_id=1,
            value=10,
            max_gas_fee=20,
            max_priority_fee=1,
            access_list=[
                messages.EthereumAccessList(
                    address="0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae",
                    storage_keys=[
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000003"
                        ),
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000007"
                        ),
                    ],
                )
            ],
        )

    assert sig_v == 1
    assert (
        sig_r.hex()
        == "9f8763f3ff8d4d409f6b96bc3f1d84dd504e2c667b162778508478645401f121"
    )
    assert (
        sig_s.hex()
        == "51e30b68b9091cf8138c07380c4378c2711779b68b2e5264d141479f13a12f57"
    )


def test_signtx_eip1559_access_list_larger(session: Session):
    with session:

        sig_v, sig_r, sig_s = ethereum.sign_tx_eip1559(
            session,
            n=parse_path("m/44h/60h/0h/0/100"),
            nonce=0,
            gas_limit=20,
            to="0x1d1c328764a41bda0492b66baa30c4a339ff85ef",
            chain_id=1,
            value=10,
            max_gas_fee=20,
            max_priority_fee=1,
            access_list=[
                messages.EthereumAccessList(
                    address="0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae",
                    storage_keys=[
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000003"
                        ),
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000007"
                        ),
                    ],
                ),
                messages.EthereumAccessList(
                    address="0xbb9bc244d798123fde783fcc1c72d3bb8c189413",
                    storage_keys=[
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000006"
                        ),
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000007"
                        ),
                        bytes.fromhex(
                            "0000000000000000000000000000000000000000000000000000000000000009"
                        ),
                    ],
                ),
            ],
        )

    assert sig_v == 1
    assert (
        sig_r.hex()
        == "718a3a30827c979975c846d2f60495310c4959ee3adce2d89e0211785725465c"
    )
    assert (
        sig_s.hex()
        == "7d0ea2a28ef5702ca763c1f340427c0020292ffcbb4553dd1c8ea8e2b9126dbc"
    )


def test_sanity_checks_eip1559(session: Session):
    """Is not vectorized because these are internal-only tests that do not
    need to be exposed to the public.
    """
    # contract creation without data should fail.
    with pytest.raises(TrezorFailure, match=r"DataError"):
        ethereum.sign_tx_eip1559(
            session,
            n=parse_path("m/44h/60h/0h/0/100"),
            nonce=0,
            gas_limit=20,
            to="",
            chain_id=1,
            value=10,
            max_gas_fee=20,
            max_priority_fee=1,
        )

    # max fee overflow
    with pytest.raises(TrezorFailure, match=r"DataError"):
        ethereum.sign_tx_eip1559(
            session,
            n=parse_path("m/44h/60h/0h/0/100"),
            nonce=0,
            gas_limit=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
            to=TO_ADDR,
            chain_id=1,
            value=10,
            max_gas_fee=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
            max_priority_fee=1,
        )

    # priority fee overflow
    with pytest.raises(TrezorFailure, match=r"DataError"):
        ethereum.sign_tx_eip1559(
            session,
            n=parse_path("m/44h/60h/0h/0/100"),
            nonce=0,
            gas_limit=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
            to=TO_ADDR,
            chain_id=1,
            value=10,
            max_gas_fee=20,
            max_priority_fee=0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF,
        )

    # bad chain ID
    with pytest.raises(TrezorFailure, match=r"Chain ID out of bounds"):
        ethereum.sign_tx_eip1559(
            session,
            n=parse_path("m/44h/60h/0h/0/100"),
            nonce=0,
            gas_limit=20,
            to=TO_ADDR,
            chain_id=0,
            value=10,
            max_gas_fee=20,
            max_priority_fee=1,
        )


def input_flow_data_skip(client: Client, cancel: bool = False):
    return InputFlowEthereumSignTxDataSkip(client, cancel).get()


def input_flow_data_scroll_down(client: Client, cancel: bool = False):
    return InputFlowEthereumSignTxDataScrollDown(client, cancel).get()


def input_flow_data_go_back(client: Client, cancel: bool = False):
    return InputFlowEthereumSignTxDataGoBack(client, cancel).get()


HEXDATA = "0123456789abcd000023456789abcd010003456789abcd020000456789abcd030000056789abcd040000006789abcd050000000789abcd060000000089abcd070000000009abcd080000000000abcd090000000001abcd0a0000000011abcd0b0000000111abcd0c0000001111abcd0d0000011111abcd0e0000111111abcd0f0000000002abcd100000000022abcd110000000222abcd120000002222abcd130000022222abcd140000222222abcd15"


@pytest.mark.parametrize(
    "flow", (input_flow_data_skip, input_flow_data_scroll_down, input_flow_data_go_back)
)
@pytest.mark.models("core", skip="mercury", reason="Not yet implemented in new UI")
def test_signtx_data_pagination(session: Session, flow):
    def _sign_tx_call():
        ethereum.sign_tx(
            session,
            n=parse_path("m/44h/60h/0h/0/0"),
            nonce=0x0,
            gas_price=0x14,
            gas_limit=0x14,
            to="0x1d1c328764a41bda0492b66baa30c4a339ff85ef",
            chain_id=1,
            value=0xA,
            tx_type=None,
            data=bytes.fromhex(HEXDATA),
        )

    with session, session.client as client:
        client.watch_layout()
        client.set_input_flow(flow(client))
        _sign_tx_call()

    if flow is not input_flow_data_scroll_down:
        with session, session.client as client, pytest.raises(exceptions.Cancelled):
            client.watch_layout()
            client.set_input_flow(flow(client, cancel=True))
            _sign_tx_call()


@pytest.mark.models("core")
@parametrize_using_common_fixtures("ethereum/sign_tx_staking.json")
@pytest.mark.parametrize("chunkify", (True, False))
def test_signtx_staking(
    session: Session, chunkify: bool, parameters: dict, result: dict
):
    input_flow = InputFlowEthereumSignTxStaking(session.client).get()
    _do_test_signtx(
        session, parameters, result, input_flow=input_flow, chunkify=chunkify
    )


@pytest.mark.models("core")
@parametrize_using_common_fixtures("ethereum/sign_tx_staking_data_error.json")
def test_signtx_staking_bad_inputs(session: Session, parameters: dict, result: dict):
    # result not needed
    with pytest.raises(TrezorFailure, match=r"DataError"):
        ethereum.sign_tx(
            session,
            n=parse_path(parameters["path"]),
            nonce=int(parameters["nonce"], 16),
            gas_price=int(parameters["gas_price"], 16),
            gas_limit=int(parameters["gas_limit"], 16),
            to=parameters["to_address"],
            value=int(parameters["value"], 16),
            data=bytes.fromhex(parameters["data"]),
            chain_id=parameters["chain_id"],
            tx_type=parameters["tx_type"],
            definitions=None,
            chunkify=False,
        )


@pytest.mark.models("core")
@parametrize_using_common_fixtures("ethereum/sign_tx_staking_eip1559.json")
def test_signtx_staking_eip1559(session: Session, parameters: dict, result: dict):
    with session:
        sig_v, sig_r, sig_s = ethereum.sign_tx_eip1559(
            session,
            n=parse_path(parameters["path"]),
            nonce=int(parameters["nonce"], 16),
            max_gas_fee=int(parameters["max_gas_fee"], 16),
            max_priority_fee=int(parameters["max_priority_fee"], 16),
            gas_limit=int(parameters["gas_limit"], 16),
            to=parameters["to_address"],
            value=int(parameters["value"], 16),
            data=bytes.fromhex(parameters["data"]),
            chain_id=parameters["chain_id"],
            definitions=None,
            chunkify=True,
        )
    assert sig_r.hex() == result["sig_r"]
    assert sig_s.hex() == result["sig_s"]
    assert sig_v == result["sig_v"]