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Fix calculation of unlimited_stake in case of modified wallet

This commit is contained in:
Matthias 2021-04-20 15:55:48 +02:00
parent 1936dd1ee8
commit 06d6f9ac41
1 changed files with 8 additions and 7 deletions
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15
freqtrade/wallets.py
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@ -130,14 +130,13 @@ class Wallets:
def get_all_balances(self) -> Dict[str, Any]:
return self._wallets
def _get_available_stake_amount(self) -> float:
def _get_available_stake_amount(self, val_tied_up: float) -> float:
"""
Return the total currently available balance in stake currency,
respecting tradable_balance_ratio.
Calculated as
(<open_trade stakes> + free amount ) * tradable_balance_ratio - <open_trade stakes>
(<open_trade stakes> + free amount) * tradable_balance_ratio - <open_trade stakes>
"""
val_tied_up = Trade.total_open_trades_stakes()
# Ensure <tradable_balance_ratio>% is used from the overall balance
# Otherwise we'd risk lowering stakes with each open trade.
@ -151,12 +150,13 @@ class Wallets:
Calculate stake amount for "unlimited" stake amount
:return: 0 if max number of trades reached, else stake_amount to use.
"""
if not free_open_trades:
if not free_open_trades or self._config['max_open_trades'] == 0:
return 0
available_amount = self._get_available_stake_amount()
val_tied_up = Trade.total_open_trades_stakes()
available_amount = self._get_available_stake_amount(val_tied_up)
return available_amount / free_open_trades
return (available_amount + val_tied_up) / self._config['max_open_trades']
def _check_available_stake_amount(self, stake_amount: float) -> float:
"""
@ -165,7 +165,8 @@ class Wallets:
:return: float: Stake amount
:raise: DependencyException if balance is lower than stake-amount
"""
available_amount = self._get_available_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