pluto/handler/sources/localbitcoins.py

# Other library imports
from pyotp import TOTP

# Project imports
from settings import settings
import util
import sources.local


class LBTC(sources.local.Local):
    """
    LocalBitcoins API handler.
    """

    def __init__(self):
        """
        Initialise the LocalBitcoins API.
        Initialise the last_dash storage for detecting new trades.
        """
        self.platform = "lbtc"
        super().__init__()

        # Cache for detecting new trades
        self.last_dash = set()

        # Cache for detecting new messages
        self.last_messages = {}

        # Assets that cheat has been run on
        self.cheat_run_on = []

    def map_provider(self, provider, reverse=False):
        provider_map = {"NATIONAL_BANK": "national-bank-transfer"}
        if reverse:
            try:
                return next(key for key, value in provider_map.items() if value == provider)
            except StopIteration:
                return False
        else:
            try:
                return provider_map[provider]
            except KeyError:
                return False

    @util.handle_exceptions
    def release_funds(self, contact_id):
        """
        Release funds for a contact_id.
        :param contact_id: trade/contact ID
        :type contact_id: string
        :return: response dict
        :rtype: dict
        """
        if self.sets.Dummy == "1":
            self.log.error(f"Running in dummy mode, not releasing funds for {contact_id}")
            return
        payload = {
            "tradeId": contact_id,
            "password": self.sets.Pass,
        }
        rtrn = self.api._api_call(
            api_method=f"contact_release/{contact_id}",
            http_method="POST",
            query_values=payload,
        )

        # Check if we can withdraw funds
        self.withdraw_funds()

        return rtrn

    # TODO: rewrite to handle BTC
    @util.handle_exceptions
    def withdraw_funds(self):
        """
        Withdraw excess funds to our XMR wallets.
        """
        totals_all = self.tx.get_total()
        if totals_all is False:
            return False

        wallet_xmr, _ = totals_all[2]

        # Get the wallet balances in USD
        total_usd = totals_all[0][1]

        # total_trades_usd = self.tx.get_open_trades_usd()
        if not total_usd:
            return False
        # total_usd += total_trades_usd

        profit_usd = total_usd - float(settings.Money.BaseUSD)
        # Get the XMR -> USD exchange rate
        xmr_usd = self.money.cg.get_price(ids="bitcoin", vs_currencies=["USD"])

        # Convert the USD total to XMR
        profit_usd_in_xmr = float(profit_usd) / xmr_usd["bitcoin"]["usd"]

        # Check profit is above zero
        if not profit_usd >= 0:
            return

        if not float(wallet_xmr) > profit_usd_in_xmr:
            # Not enough funds to withdraw
            self.log.error(f"Not enough funds to withdraw {profit_usd_in_xmr}, as wallet only contains {wallet_xmr}")
            self.irc.sendmsg(f"Not enough funds to withdraw {profit_usd_in_xmr}, as wallet only contains {wallet_xmr}")
            self.ux.notify.notify_need_topup(profit_usd_in_xmr)

            return

        if not profit_usd >= float(settings.Money.WithdrawLimit):
            # Not enough profit to withdraw
            return

        half = profit_usd_in_xmr / 2

        half_rounded = round(half, 8)

        # Read OTP secret
        with open("otp.key", "r") as f:
            otp_key = f.read()
        f.close()
        otp_key = otp_key.replace("\n", "")

        # Get OTP code
        otp_code = TOTP(otp_key)

        # Set up the format for calling wallet_send_xmr
        send_cast = {
            "address": None,
            "amount": half_rounded,
            "password": settings.LocalBitcoins.Pass,
            "otp": otp_code.now(),
        }

        send_cast["address"] = settings.XMR.Wallet1
        rtrn1 = self.api.wallet_send_xmr(**send_cast)

        send_cast["address"] = settings.XMR.Wallet2
        rtrn2 = self.api.wallet_send_xmr(**send_cast)

        self.irc.sendmsg(f"Withdrawal: {rtrn1['success']} | {rtrn2['success']}")
        self.ux.notify.notify_withdrawal(half_rounded)