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Reduce number of calls to Trade.total_open_traes_stakes()

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This commit is contained in:
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
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
: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:
return 0
val_tied_up = Trade.total_open_trades_stakes()
available_amount = self._get_available_stake_amount(val_tied_up)
possible_stake = (available_amount + val_tied_up) / self._config['max_open_trades']
# Theoretical amount can be above available amount - therefore limit to available amount!
return min((available_amount + val_tied_up) / self._config['max_open_trades'],
available_amount)
return min(possible_stake, 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
for the stake currency
:return: float: 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']:
# Remaining amount needs to be at least stake_amount * last_stake_amount_min_ratio
@ -195,17 +191,20 @@ class Wallets:
stake_amount: float
# Ensure wallets are uptodate.
self.update()
val_tied_up = Trade.total_open_trades_stakes()
available_amount = self._get_available_stake_amount(val_tied_up)
if edge:
stake_amount = edge.stake_amount(
pair,
self.get_free(self._config['stake_currency']),
self.get_total(self._config['stake_currency']),
Trade.total_open_trades_stakes()
val_tied_up
)
else:
stake_amount = self._config['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)