59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
from datetime import datetime, timedelta
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from typing import Optional, Final, Dict
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from pyhon.helper import str_to_float
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class HonAttribute:
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_LOCK_TIMEOUT: Final = 10
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def __init__(self, data: Dict[str, str] | str):
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self._value: str = ""
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self._last_update: Optional[datetime] = None
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self._lock_timestamp: Optional[datetime] = None
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self.update(data)
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@property
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def value(self) -> float | str:
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"""Attribute value"""
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try:
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return str_to_float(self._value)
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except ValueError:
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return self._value
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@value.setter
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def value(self, value: str) -> None:
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self._value = value
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@property
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def last_update(self) -> Optional[datetime]:
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"""Timestamp of last api update"""
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return self._last_update
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@property
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def lock(self) -> bool:
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"""Shows if value changes are forbidden"""
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if not self._lock_timestamp:
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return False
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lock_until = self._lock_timestamp + timedelta(seconds=self._LOCK_TIMEOUT)
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return lock_until >= datetime.utcnow()
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def update(self, data: Dict[str, str] | str, shield: bool = False) -> bool:
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if self.lock and not shield:
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return False
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if shield:
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self._lock_timestamp = datetime.utcnow()
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if isinstance(data, str):
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self.value = data
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return True
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self.value = data.get("parNewVal", "")
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if last_update := data.get("lastUpdate"):
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try:
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self._last_update = datetime.fromisoformat(last_update)
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except ValueError:
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self._last_update = None
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return True
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def __str__(self) -> str:
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return self._value
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