pluto/handler/sources/localbitcoins.py

# Twisted/Klein imports
from twisted.internet.task import LoopingCall
from twisted.internet.threads import deferToThread

# Other library imports
from json import loads
from lib.localbitcoins_py import LocalBitcoins
from time import sleep
from pyotp import TOTP
from datetime import datetime

# Project imports
from settings import settings
import util


class LBTC(util.Base):
    """
    LocalBitcoins API handler.
    """

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

        # 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 setup_loop(self):  # TODO: move to main sources
        """
        Set up the LoopingCall to get all active trades and messages.
        """
        self.lc_dash = LoopingCall(self.loop_check)
        self.lc_dash.start(int(settings.LocalBitcoins.RefreshSec))
        if settings.LocalBitcoins.Cheat == "1":
            self.lc_cheat = LoopingCall(self.run_cheat_in_thread)
            self.lc_cheat.start(int(settings.LocalBitcoins.CheatSec))

    @util.handle_exceptions
    def wrap_dashboard(self):
        dash = self.lbtc.dashboard()  # no dashboard_seller for lbtc
        if dash is None:
            return False
        if dash is False:
            return False
        if dash["response"] is None:
            return False
        dash_tmp = {}
        if not dash.items():
            return False
        if "data" not in dash["response"].keys():
            self.log.error(f"Data not in dashboard response: {dash}")
            return dash_tmp
        if dash["response"]["data"]["contact_count"] > 0:
            for contact in dash["response"]["data"]["contact_list"]:
                contact_id = contact["data"]["contact_id"]
                dash_tmp[contact_id] = contact
        return dash_tmp

    def loop_check(self):
        """
        Calls hooks to parse dashboard info and get all contact messages.
        """
        dash_tmp = self.wrap_dashboard()

        # Call dashboard hooks
        self.dashboard_hook(dash_tmp)

        # Get recent messages
        self.get_recent_messages()
        return dash_tmp

    def get_dashboard(self):
        """
        Get dashboard helper for IRC only.
        """
        dash = self.wrap_dashboard()
        rtrn = []
        if dash is False:
            return False
        for contact_id, contact in dash.items():
            reference = self.tx.tx_to_ref(contact_id)
            buyer = contact["data"]["buyer"]["username"]
            amount = contact["data"]["amount"]
            asset = contact["data"]["advertisement"]["asset"]
            amount_crypto = contact["data"]["amount_btc"]
            currency = contact["data"]["currency"]
            provider = contact["data"]["advertisement"]["payment_method"]
            if not contact["data"]["is_selling"]:
                continue
            rtrn.append(f"{reference}: {buyer} {amount}{currency} {provider} {amount_crypto}{asset}")
        return rtrn

    def dashboard_hook(self, dash):
        """
        Get information about our open trades.
        Post new trades to IRC and cache trades for the future.
        """
        current_trades = []
        if not dash:
            return
        if not dash.items():
            return
        for contact_id, contact in dash.items():
            reference = self.tx.tx_to_ref(contact_id)
            if reference:
                current_trades.append(reference)
            buyer = contact["data"]["buyer"]["username"]
            amount = contact["data"]["amount"]
            asset = contact["data"]["advertisement"]["asset"]
            provider = contact["data"]["advertisement"]["payment_method"]
            amount_crypto = contact["data"]["amount_btc"]
            currency = contact["data"]["currency"]
            if not contact["data"]["is_selling"]:
                continue
            if reference not in self.last_dash:
                reference = self.tx.new_trade(
                    "lbtc",
                    asset,
                    contact_id,
                    buyer,
                    currency,
                    amount,
                    amount_crypto,
                    provider,
                )
                if reference:
                    if reference not in current_trades:
                        current_trades.append(reference)
                # Let us know there is a new trade
                self.irc.sendmsg(f"AUTO {reference}: {buyer} {amount}{currency} {provider} {amount_crypto}{asset}")
            # Note that we have seen this reference
            self.last_dash.add(reference)

        # Purge old trades from cache
        for ref in list(self.last_dash):  # We're removing from the list on the fly
            if ref not in current_trades:
                self.last_dash.remove(ref)
        if reference and reference not in current_trades:
            current_trades.append(reference)
        self.tx.cleanup(current_trades)

    @util.handle_exceptions
    def get_recent_messages(self, send_irc=True):
        """
        Get recent messages.
        """
        messages_tmp = {}
        messages = self.lbtc.recent_messages()
        if messages is False:
            return False
        if not messages["success"]:
            return False
        if "data" not in messages["response"]:
            self.log.error(f"Data not in messages response: {messages['response']}")
            return False
        open_tx = self.tx.get_ref_map().keys()
        for message in messages["response"]["data"]["message_list"]:
            contact_id = message["contact_id"]
            username = message["sender"]["username"]
            msg = message["msg"]
            if contact_id not in open_tx:
                continue
            reference = self.tx.tx_to_ref(contact_id)
            if reference in messages_tmp:
                messages_tmp[reference].append([username, msg])
            else:
                messages_tmp[reference] = [[username, msg]]

            # Send new messages on IRC
            if send_irc:
                for user, message in messages_tmp[reference]:
                    if reference in self.last_messages:
                        if not [user, message] in self.last_messages[reference]:
                            self.irc.sendmsg(f"AUTO {reference}: ({user}) {message}")
                            # Append sent messages to last_messages so we don't send them again
                            self.last_messages[reference].append([user, message])
                    else:
                        self.last_messages[reference] = [[user, message]]
                        for x in messages_tmp[reference]:
                            self.irc.sendmsg(f"NEW {reference}: ({user}) {message}")

        # Purge old trades from cache
        for ref in list(self.last_messages):  # We're removing from the list on the fly
            if ref not in messages_tmp:
                del self.last_messages[ref]

        return messages_tmp

    @util.handle_exceptions
    def enum_ad_ids(self, page=0):
        ads = self.lbtc._api_call(api_method="ads", query_values={"page": page})
        if ads is False:
            return False
        ads_total = []
        if not ads["success"]:
            return False
        for ad in ads["response"]["data"]["ad_list"]:
            ads_total.append(ad["data"]["ad_id"])
        if "pagination" in ads["response"]:
            if "next" in ads["response"]["pagination"]:
                page += 1
                ads_iter = self.enum_ad_ids(page)
                if ads_iter is None:
                    return False
                if ads_iter is False:
                    return False
                for ad in ads_iter:
                    ads_total.append(ad)
        return ads_total

    @util.handle_exceptions
    def enum_ads(self, requested_asset=None, page=0):
        query_values = {"page": page}
        if requested_asset:
            query_values["asset"] = requested_asset
        ads = self.lbtc._api_call(api_method="ads", query_values=query_values)
        if ads is False:
            return False
        ads_total = []
        if not ads["success"]:
            return False
        for ad in ads["response"]["data"]["ad_list"]:
            asset = ad["data"]["asset"]
            ad_id = ad["data"]["ad_id"]
            country = ad["data"]["countrycode"]
            currency = ad["data"]["currency"]
            provider = ad["data"]["online_provider"]
            ads_total.append([asset, ad_id, country, currency, provider])
        if "pagination" in ads["response"]:
            if "next" in ads["response"]["pagination"]:
                page += 1
                ads_iter = self.enum_ads(requested_asset, page)
                if ads_iter is None:
                    return False
                if ads_iter is False:
                    return False
                for ad in ads_iter:
                    ads_total.append([ad[0], ad[1], ad[2], ad[3], ad[4]])
        return ads_total

    @util.handle_exceptions
    def enum_public_ads(self, asset, currency, providers=None, page=0):
        to_return = []
        if not providers:
            providers = ["REVOLUT"]
        # buy-monero-online, buy-bitcoin-online
        # Work around weirdness calling it bitcoins
        ads = self.lbtc._api_call(
            api_method=f"buy-bitcoins-online/{currency}",
            query_values={"page": page},
        )
        # with open("pub.json", "a") as f:
        #   import json
        #   f.write(json.dumps([page, currency, asset, ads])+"\n")
        # f.close()
        if ads is None:
            return False
        if ads is False:
            return False
        if ads["response"] is None:
            return False
        if "data" not in ads["response"]:
            return False
        for ad in ads["response"]["data"]["ad_list"]:
            if ad["data"]["online_provider"] not in providers:
                continue
            date_last_seen = ad["data"]["profile"]["last_online"]
            # Check if this person was seen recently
            if not util.last_online_recent(date_last_seen):
                continue
            ad_id = ad["data"]["ad_id"]
            username = ad["data"]["profile"]["username"]
            temp_price = ad["data"]["temp_price"]
            provider = ad["data"]["online_provider"]
            if ad["data"]["currency"] != currency:
                continue
            to_append = [ad_id, username, temp_price, provider, asset, currency]
            if to_append not in to_return:
                to_return.append(to_append)
            # yield [ad_id, username, temp_price, provider, asset, currency]
        if "pagination" in ads["response"]:
            if "next" in ads["response"]["pagination"]:
                page += 1
                ads_iter = self.enum_public_ads(asset, currency, providers, page)
                if ads_iter is None:
                    return False
                if ads_iter is False:
                    return False
                for ad in ads_iter:
                    to_append = [ad[0], ad[1], ad[2], ad[3], ad[4], ad[5]]
                    if to_append not in to_return:
                        to_return.append(to_append)
        return to_return

    def run_cheat_in_thread(self, assets=None):
        """
        Update prices in another thread.
        """
        if not assets:
            all_assets = loads(settings.LocalBitcoins.AssetList)
            assets_not_run = set(all_assets) ^ set(self.cheat_run_on)
            if not assets_not_run:
                self.cheat_run_on = []
                asset = list(all_assets).pop()
                self.cheat_run_on.append(asset)
            else:
                asset = assets_not_run.pop()
                self.cheat_run_on.append(asset)
            deferToThread(self.update_prices, [asset])
            return asset
        else:
            deferToThread(self.update_prices, assets)

    @util.handle_exceptions
    def update_prices(self, assets=None):
        # Get all public ads for the given assets
        public_ads = self.get_all_public_ads(assets)
        if not public_ads:
            return False

        # Get the ads to update
        to_update = self.markets.get_new_ad_equations(public_ads, assets)
        self.slow_ad_update(to_update)

    # TODO: make generic and move to markets
    @util.handle_exceptions
    def get_all_public_ads(self, assets=None, currencies=None, providers=None):
        """
        Get all public ads for our listed currencies.
        :return: dict of public ads keyed by currency
        :rtype: dict
        """
        public_ads = {}
        crypto_map = {
            "BTC": "bitcoin",
        }

        if not assets:
            assets = self.markets.get_all_assets()
        # Get all currencies we have ads for, deduplicated
        if not currencies:
            currencies = self.markets.get_all_currencies()
        if not providers:
            providers = self.markets.get_all_providers()
        # We want to get the ads for each of these currencies and return the result
        rates = self.money.cg.get_price(ids=["bitcoin"], vs_currencies=currencies)
        for asset in assets:
            for currency in currencies:
                cg_asset_name = crypto_map[asset]
                try:
                    rates[cg_asset_name][currency.lower()]
                except KeyError:
                    # self.log.error("Error getting public ads for currency {currency}", currency=currency)
                    continue
                ads_list = self.enum_public_ads(asset, currency, providers)
                if not ads_list:
                    continue
                ads = self.money.lookup_rates(ads_list, rates=rates)
                if not ads:
                    continue
                self.write_to_es_ads("ads", ads)
                if currency in public_ads:
                    for ad in list(ads):
                        if ad not in public_ads[currency]:
                            public_ads[currency].append(ad)
                else:
                    public_ads[currency] = ads

        return public_ads

    def write_to_es_ads(self, msgtype, ads):
        if settings.ES.Enabled == "1":
            for ad in ads:
                cast = {
                    "id": ad[0],
                    "username": ad[1],
                    "price": ad[2],
                    "provider": ad[3],
                    "asset": ad[4],
                    "currency": ad[5],
                    "margin": ad[6],
                }
                cast["type"] = msgtype
                cast["ts"] = str(datetime.now().isoformat())
                cast["xtype"] = "platorm"
                cast["market"] = "localbitcoins"
                self.es.index(index=settings.ES.MetaIndex, document=cast)

    def slow_ad_update(self, ads):
        """
        Slow ad equation update utilising exponential backoff in order to guarantee all ads are updated.
        :param ads: our list of ads
        """
        iterations = 0
        throttled = 0
        assets = set()
        currencies = set()
        while not all([x[4] for x in ads]) or iterations == 1000:
            for ad_index in range(len(ads)):
                ad_id, new_formula, asset, currency, actioned = ads[ad_index]
                assets.add(asset)
                currencies.add(currency)
                if not actioned:
                    rtrn = self.lbtc.ad_equation(ad_id, new_formula)
                    if rtrn["success"]:
                        ads[ad_index][4] = True
                        throttled = 0
                        continue
                    else:
                        if "error_code" not in rtrn["response"]["error"]:
                            self.log.error(f"Error code not in return for ad {ad_id}: {rtrn['response']}")
                            return
                        if rtrn["response"]["error"]["error_code"] == 429:
                            throttled += 1
                            sleep_time = pow(
                                throttled,
                                float(settings.LocalBitcoins.SleepExponent),
                            )
                            self.log.info(
                                f"Throttled {throttled} times while updating {ad_id}, sleeping for {sleep_time} seconds"
                            )
                            # We're running in a thread, so this is fine
                            sleep(sleep_time)
                        self.log.error(f"Error updating ad {ad_id}: {rtrn['response']}")
                        continue
            iterations += 1

    @util.handle_exceptions
    def nuke_ads(self):
        """
        Delete all of our adverts.
        :return: True or False
        :rtype: bool
        """
        ads = self.enum_ad_ids()
        return_ids = []
        if ads is False:
            return False
        for ad_id in ads:
            rtrn = self.lbtc.ad_delete(ad_id)
            return_ids.append(rtrn["success"])
        return all(return_ids)

    @util.handle_exceptions
    def create_ad(
        self,
        asset,
        countrycode,
        currency,
        provider,
        payment_details,
        visible=None,
        edit=False,
        ad_id=None,
    ):
        """
        Post an ad with the given asset in a country with a given currency.
        Convert the min and max amounts from settings to the given currency with CurrencyRates.
        :param asset: the crypto asset to list (XMR or BTC)
        :type asset: string
        :param countrycode: country code
        :param currency: currency code
        :param payment_details: the payment details
        :type countrycode: string
        :type currency: string
        :type payment_details: dict
        :return: data about created object or error
        :rtype: dict
        """

        if payment_details:
            payment_details_text = self.markets.format_payment_details(currency, payment_details)
            ad_text = self.markets.format_ad(asset, currency, payment_details_text)
            min_amount, max_amount = self.money.get_minmax(asset, currency)

        price_formula = f"coingecko{asset.lower()}usd*usd{currency.lower()}*{settings.LocalBitcoins.Margin}"

        form = {
            "country_code": countrycode,
            "currency": currency,
            "trade_type": "ONLINE_SELL",
            "asset": asset,
            "price_equation": price_formula,
            "track_max_amount": False,
            "require_trusted_by_advertiser": False,
            "online_provider": provider,
            "payment_method_details": settings.Platform.PaymentMethodDetails,
        }
        if visible is False:
            form["visible"] = False
        elif visible is True:
            form["visible"] = False
        if payment_details:
            form["account_info"] = payment_details_text
            form["msg"] = ad_text
            form["min_amount"] = min_amount
            form["max_amount"] = max_amount

        if edit:
            ad = self.lbtc.ad(ad_id=ad_id, **form)
        else:
            ad = self.lbtc.ad_create(**form)
        return ad

    def dist_countries(self, filter_asset=None):
        """
        Distribute our advert into all countries and providers listed in the config.
        Exits on errors.
        :return: False or dict with response
        :rtype: bool or dict
        """
        dist_list = list(self.markets.create_distribution_list(filter_asset))
        our_ads = self.enum_ads()
        (
            supported_currencies,
            account_info,
        ) = self.markets.get_valid_account_details()
        # Let's get rid of the ad IDs and make it a tuple like dist_list
        our_ads = [(x[0], x[2], x[3], x[4]) for x in our_ads]
        for asset, countrycode, currency, provider in dist_list:
            if (asset, countrycode, currency, provider) not in our_ads:
                if currency in supported_currencies:
                    # Create the actual ad and pass in all the stuff
                    rtrn = self.create_ad(
                        asset,
                        countrycode,
                        currency,
                        provider,
                        payment_details=account_info[currency],
                    )
                    # Bail on first error, let's not continue
                    if rtrn is False:
                        return False
                    yield rtrn

    def redist_countries(self):
        """
        Redistribute our advert details into all our listed adverts.
        This will edit all ads and update the details. Only works if we have already run dist.
        This will not post any new ads.
        Exits on errors.
        :return: False or dict with response
        :rtype: bool or dict
        """
        our_ads = self.enum_ads()
        (
            supported_currencies,
            account_info,
        ) = self.markets.get_valid_account_details()
        for asset, ad_id, countrycode, currency, provider in our_ads:
            if currency in supported_currencies:
                rtrn = self.create_ad(
                    asset,
                    countrycode,
                    currency,
                    provider,
                    payment_details=account_info[currency],
                    edit=True,
                    ad_id=ad_id,
                )
                # Bail on first error, let's not continue
                if rtrn is False:
                    return False
                yield (rtrn, ad_id)

    @util.handle_exceptions
    def strip_duplicate_ads(self):
        """
        Remove duplicate ads.
        :return: list of duplicate ads
        :rtype: list
        """
        existing_ads = self.enum_ads()
        _size = len(existing_ads)
        repeated = []
        for i in range(_size):
            k = i + 1
            for j in range(k, _size):
                if existing_ads[i] == existing_ads[j] and existing_ads[i] not in repeated:
                    repeated.append(existing_ads[i])

        actioned = []
        for ad_id, country, currency in repeated:
            return all(actioned)

    @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 settings.LocalBitcoins.Dummy == "1":
            self.log.error(f"Running in dummy mode, not releasing funds for {contact_id}")
            return
        payload = {
            "tradeId": contact_id,
            "password": settings.LocalBitcoins.Pass,
        }
        rtrn = self.lbtc._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
        # print("total_usd after trades add", total_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
            # TODO: Send a message to notify
            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}")
            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.lbtc.wallet_send_xmr(**send_cast)

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

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