Use class for attributes

pyhon/attributes.py

@@ -0,0 +1,37 @@
+from datetime import datetime
+from typing import Optional
+
+from pyhon.helper import str_to_float
+
+
+class HonAttribute:
+    def __init__(self, data):
+        self._value: str = ""
+        self._last_update: Optional[datetime] = None
+        self.update(data)
+
+    @property
+    def value(self) -> float | str:
+        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]:
+        return self._last_update
+
+    def update(self, data):
+        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
+
+    def __str__(self) -> str:
+        return self._value