75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
"""
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Protection manager class
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"""
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import logging
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from datetime import datetime, timezone
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from typing import Dict, List, Optional
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from freqtrade.persistence import PairLocks
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from freqtrade.persistence.models import PairLock
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from freqtrade.plugins.protections import IProtection
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from freqtrade.resolvers import ProtectionResolver
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logger = logging.getLogger(__name__)
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class ProtectionManager():
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def __init__(self, config: Dict, protections: List) -> None:
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self._config = config
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self._protection_handlers: List[IProtection] = []
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for protection_handler_config in protections:
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protection_handler = ProtectionResolver.load_protection(
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protection_handler_config['method'],
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config=config,
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protection_config=protection_handler_config,
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)
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self._protection_handlers.append(protection_handler)
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if not self._protection_handlers:
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logger.info("No protection Handlers defined.")
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@property
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def name_list(self) -> List[str]:
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"""
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Get list of loaded Protection Handler names
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"""
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return [p.name for p in self._protection_handlers]
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def short_desc(self) -> List[Dict]:
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"""
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List of short_desc for each Pairlist Handler
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"""
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return [{p.name: p.short_desc()} for p in self._protection_handlers]
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def global_stop(self, now: Optional[datetime] = None, side: str = 'long') -> Optional[PairLock]:
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if not now:
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now = datetime.now(timezone.utc)
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result = None
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for protection_handler in self._protection_handlers:
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if protection_handler.has_global_stop:
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lock, until, reason, lock_side = protection_handler.global_stop(
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date_now=now, side=side)
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# Early stopping - first positive result blocks further trades
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if lock and until:
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if not PairLocks.is_global_lock(until):
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result = PairLocks.lock_pair('*', until, reason, now=now)
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return result
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def stop_per_pair(
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self, pair, now: Optional[datetime] = None, side: str = 'long') -> Optional[PairLock]:
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if not now:
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now = datetime.now(timezone.utc)
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result = None
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for protection_handler in self._protection_handlers:
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if protection_handler.has_local_stop:
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lock, until, reason, lock_side = protection_handler.stop_per_pair(
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pair=pair, date_now=now, side=side)
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if lock and until:
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if not PairLocks.is_pair_locked(pair, until):
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result = PairLocks.lock_pair(pair, until, reason, now=now)
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return result
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