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import pytest

from lib.coins import Litecoin, Bitcoin
from lib.hash import Base58

addresses = [
    (Bitcoin, "13xDKJbjh4acmLpNVr6Lc9hFcXRr9fyt4x",
     "206168f5322583ff37f8e55665a4789ae8963532", "b8cb80b26e8932f5b12a7e"),
    (Bitcoin, "3GxRZWkJufR5XA8hnNJgQ2gkASSheoBcmW",
     "a773db925b09add367dcc253c1f9bbc1d11ec6fd", "062d8515e50cb92b8a3a73"),
    (Litecoin, "LNBAaWuZmipg29WXfz5dtAm1pjo8FEH8yg",
     "206168f5322583ff37f8e55665a4789ae8963532", "b8cb80b26e8932f5b12a7e"),
    (Litecoin, "3GxRZWkJufR5XA8hnNJgQ2gkASSheoBcmW",
     "a773db925b09add367dcc253c1f9bbc1d11ec6fd", "062d8515e50cb92b8a3a73"),
]


@pytest.fixture(params=addresses)
def address(request):
    return request.param


def test_address_to_hashX(address):
    coin, addr, _, hashX = address
    assert coin.address_to_hashX(addr).hex() == hashX


def test_address_from_hash160(address):
    coin, addr, hash, _ = address

    raw = Base58.decode_check(addr)
    verlen = len(raw) - 20
    assert verlen > 0
    verbyte, hash_bytes = raw[:verlen], raw[verlen:]
    if coin.P2PKH_VERBYTE == verbyte:
        assert coin.P2PKH_address_from_hash160(bytes.fromhex(hash)) == addr
    elif coin.P2SH_VERBYTE == verbyte:
        assert coin.P2SH_address_from_hash160(bytes.fromhex(hash)) == addr
    else:
        raise Exception("Unknown version byte")