energy_log_update(): check if the timestamp of the log is recent

Author: bouwew

plugwise_usb/nodes/circle.py

@@ -24,6 +24,7 @@
 )
 from ..connection import StickController
 from ..constants import (
+    DAY_IN_HOURS,
     DEFAULT_CONS_INTERVAL,
     MAX_TIME_DRIFT,
     MINIMAL_POWER_UPDATE,
@@ -582,7 +583,14 @@ async def energy_log_update(self, address: int | None) -> tuple[bool, bool]:
             if log_timestamp is None or log_pulses is None:
                 self._energy_counters.add_empty_log(response.log_address, _slot)
                 empty_log = True
-            elif await self._energy_log_record_update_state(
+                continue
+            elif not self._check_timestamp_is_recent(address, _slot, log_timestamp):
+                # Don't store an old log-record, store am empty record instead
+                self._energy_counters.add_empty_log(response.log_address, _slot)
+                empty_log = True
+                continue
+
+            if await self._energy_log_record_update_state(
                 response.log_address,
                 _slot,
                 log_timestamp.replace(tzinfo=UTC),
@@ -611,6 +619,25 @@ async def energy_log_update(self, address: int | None) -> tuple[bool, bool]:
 
         return result, empty_log
 
+    def _check_timestamp_is_recent(self, address, slot, timestamp) -> bool:
+        """Check if the timestamp of the received log-record is recent.
+
+        A timestamp from within the last 24 hours is considered recent.
+        """
+        if (
+            (datetime.now(tz=UTC) - timestamp.replace(tzinfo=UTC)).total_seconds()
+            // 3600
+        ) > DAY_IN_HOURS:
+            _LOGGER.warning(
+                "EnergyLog from Node %s | address %s | slot %s | timestamp %s is outdated, ignoring...",
+                self._mac_in_str,
+                address,
+                slot,
+                timestamp,
+            )
+            return False
+        return True
+
     async def _energy_log_records_load_from_cache(self) -> bool:
         """Load energy_log_record from cache."""
         if (cache_data := self._get_cache(CACHE_ENERGY_COLLECTION)) is None: