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Reduce number of calls to Trade.total_open_traes_stakes()

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Matthias 2021-04-21 19:27:21 +02:00
parent 0233aa248e
commit ba2d4d4656
1 changed files with 11 additions and 12 deletions
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23
freqtrade/wallets.py
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@ -145,7 +145,8 @@ class Wallets:
self._config['tradable_balance_ratio']) - val_tied_up self._config['tradable_balance_ratio']) - val_tied_up
return available_amount return available_amount
def _calculate_unlimited_stake_amount(self, free_open_trades: int) -> float: def _calculate_unlimited_stake_amount(self, free_open_trades: int, available_amount: float,
val_tied_up: float) -> float:
""" """
Calculate stake amount for "unlimited" stake amount Calculate stake amount for "unlimited" stake amount
:return: 0 if max number of trades reached, else stake_amount to use. :return: 0 if max number of trades reached, else stake_amount to use.
@ -153,22 +154,17 @@ class Wallets:
if not free_open_trades or self._config['max_open_trades'] == 0: if not free_open_trades or self._config['max_open_trades'] == 0:
return 0 return 0
val_tied_up = Trade.total_open_trades_stakes() possible_stake = (available_amount + val_tied_up) / self._config['max_open_trades']
available_amount = self._get_available_stake_amount(val_tied_up)
# Theoretical amount can be above available amount - therefore limit to available amount! # Theoretical amount can be above available amount - therefore limit to available amount!
return min((available_amount + val_tied_up) / self._config['max_open_trades'], return min(possible_stake, available_amount)
available_amount)
def _check_available_stake_amount(self, stake_amount: float) -> float: def _check_available_stake_amount(self, stake_amount: float, available_amount: float) -> float:
""" """
Check if stake amount can be fulfilled with the available balance Check if stake amount can be fulfilled with the available balance
for the stake currency for the stake currency
:return: float: Stake amount :return: float: Stake amount
:raise: DependencyException if balance is lower than stake-amount :raise: DependencyException if balance is lower than stake-amount
""" """
val_tied_up = Trade.total_open_trades_stakes()
available_amount = self._get_available_stake_amount(val_tied_up)
if self._config['amend_last_stake_amount']: if self._config['amend_last_stake_amount']:
# Remaining amount needs to be at least stake_amount * last_stake_amount_min_ratio # Remaining amount needs to be at least stake_amount * last_stake_amount_min_ratio
@ -195,17 +191,20 @@ class Wallets:
stake_amount: float stake_amount: float
# Ensure wallets are uptodate. # Ensure wallets are uptodate.
self.update() self.update()
val_tied_up = Trade.total_open_trades_stakes()
available_amount = self._get_available_stake_amount(val_tied_up)
if edge: if edge:
stake_amount = edge.stake_amount( stake_amount = edge.stake_amount(
pair, pair,
self.get_free(self._config['stake_currency']), self.get_free(self._config['stake_currency']),
self.get_total(self._config['stake_currency']), self.get_total(self._config['stake_currency']),
Trade.total_open_trades_stakes() val_tied_up
) )
else: else:
stake_amount = self._config['stake_amount'] stake_amount = self._config['stake_amount']
if stake_amount == UNLIMITED_STAKE_AMOUNT: if stake_amount == UNLIMITED_STAKE_AMOUNT:
stake_amount = self._calculate_unlimited_stake_amount(free_open_trades) stake_amount = self._calculate_unlimited_stake_amount(
free_open_trades, available_amount, val_tied_up)
return self._check_available_stake_amount(stake_amount) return self._check_available_stake_amount(stake_amount, available_amount)