compute_value, type)
return amounts
- def fetch_balances(self, tag=None, add_portfolio=False,
+ def fetch_balances(self, tag=None, add_portfolio=False, liquidity="medium",
checkpoint=None, log_tickers=False, add_usdt=False,
ticker_currency="BTC", ticker_compute_value="average", ticker_type="total"):
all_balances = self.market.ccxt.fetch_all_balances()
currency in self.all:
self.all[currency] = portfolio.Balance(currency, balance)
if add_portfolio:
- for currency in Portfolio.repartition(from_cache=True):
+ for currency in Portfolio.repartition(from_cache=True, liquidity=liquidity):
self.all.setdefault(currency, portfolio.Balance(currency, {}))
if add_usdt:
self.all.setdefault("USDT", portfolio.Balance("USDT", {}))
else:
self.market.report.log_balances(tag=tag, checkpoint=checkpoint)
+ def available_balances_for_repartition(self,
+ compute_value="average", base_currency="BTC",
+ liquidity="medium", repartition=None):
+ if repartition is None:
+ repartition = Portfolio.repartition(liquidity=liquidity)
+ base_currency_balance = self.all.get(base_currency)
+
+ if base_currency_balance is None:
+ total_base_value = portfolio.Amount(base_currency, 0)
+ else:
+ total_base_value = base_currency_balance.exchange_free + \
+ base_currency_balance.margin_available - \
+ base_currency_balance.margin_in_position
+
+ amount_in_position = {}
+
+ # Compute balances already in the target position
+ for currency, (ptt, trade_type) in repartition.items():
+ amount_in_position[currency] = portfolio.Amount(base_currency, 0)
+ balance = self.all.get(currency)
+ if currency != base_currency and balance is not None:
+ if trade_type == "short":
+ amount = balance.margin_borrowed
+ else:
+ amount = balance.exchange_free + balance.exchange_used
+ amount_in_position[currency] = amount.in_currency(base_currency,
+ self.market, compute_value=compute_value)
+ total_base_value += amount_in_position[currency]
+
+ # recursively delete more-than-filled positions from the wanted
+ # repartition
+ did_delete = True
+ while did_delete:
+ did_delete = False
+ sum_ratio = sum([v[0] for k, v in repartition.items()])
+ current_base_value = total_base_value
+ for currency, (ptt, trade_type) in repartition.copy().items():
+ if amount_in_position[currency] > current_base_value * ptt / sum_ratio:
+ did_delete = True
+ del(repartition[currency])
+ total_base_value -= amount_in_position[currency]
+ return repartition, total_base_value, amount_in_position
+
def dispatch_assets(self, amount, liquidity="medium", repartition=None):
if repartition is None:
repartition = Portfolio.repartition(liquidity=liquidity)
worker_started = False
worker_notify = None
callback = None
+ poll_started_at = None
+
+ @classmethod
+ def next_wait_time(cls):
+ now = datetime.datetime.now()
+ if cls.poll_started_at is None:
+ cls.poll_started_at = now
+ delta = now - cls.poll_started_at
+
+ if delta < datetime.timedelta(minutes=30):
+ return 30
+ elif delta < datetime.timedelta(hours=1):
+ return 60
+ elif delta < datetime.timedelta(hours=4):
+ return 5*60
+ elif delta < datetime.timedelta(days=1):
+ return 60*60
+ else:
+ raise Exception("Too long waiting")
@classmethod
- def start_worker(cls, poll=30):
+ def start_worker(cls):
import threading
cls.worker = threading.Thread(name="portfolio", daemon=True,
- target=cls.wait_for_notification, kwargs={"poll": poll})
+ target=cls.wait_for_notification)
cls.worker_notify = threading.Event()
cls.callback = threading.Event()
return cls.worker == threading.current_thread()
@classmethod
- def wait_for_notification(cls, poll=30):
+ def wait_for_notification(cls):
if not cls.is_worker_thread():
raise RuntimeError("This method needs to be ran with the worker")
while cls.worker_started:
cls.report.print_log("[Worker] Fetching cryptoportfolio")
cls.get_cryptoportfolio(refetch=True)
cls.callback.set()
- time.sleep(poll)
+ try:
+ time.sleep(cls.next_wait_time())
+ except Exception:
+ cls.stop_worker()
@classmethod
def stop_worker(cls):
cls.callback.wait()
@classmethod
- def wait_for_recent(cls, delta=4, poll=30):
+ def wait_for_recent(cls, delta=4):
cls.get_cryptoportfolio()
while cls.last_date.get() is None or datetime.datetime.now() - cls.last_date.get() > datetime.timedelta(delta):
if cls.worker is None:
- time.sleep(poll)
+ time.sleep(cls.next_wait_time())
cls.report.print_log("Attempt to fetch up-to-date cryptoportfolio")
cls.get_cryptoportfolio(refetch=True)
cls.retrieve_cryptoportfolio()
cls.get_cryptoportfolio()
liquidities = cls.liquidities.get(liquidity)
- return liquidities[cls.last_date.get()]
+ if liquidities is not None and cls.last_date.get() in liquidities:
+ return liquidities[cls.last_date.get()].copy()
@classmethod
def get_cryptoportfolio(cls, refetch=False):
if cls.data.get() is not None and not refetch:
return
if cls.worker is not None and not cls.is_worker_thread():
+ if not cls.worker_started:
+ raise Exception("Portfolio worker is down and no usable data is present")
cls.notify_and_wait()
return
try:
cls.data.set(r.json(parse_int=D, parse_float=D))
cls.parse_cryptoportfolio()
cls.store_cryptoportfolio()
- except (JSONDecodeError, SimpleJSONDecodeError):
+ except (AssertionError, JSONDecodeError, SimpleJSONDecodeError):
cls.data.set(None)
cls.last_date.set(None)
cls.liquidities.set({})
high_liquidity = parse_weights(cls.data.get("portfolio_1"))
medium_liquidity = parse_weights(cls.data.get("portfolio_2"))
+ assert len(high_liquidity) > 0
+ assert len(medium_liquidity) > 0
cls.liquidities.set({
"medium": medium_liquidity,
"high": high_liquidity,