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