WIP: Catch and log decimal conversion issues

Author: cwasicki

src/frequenz/client/electricity_trading/_types.py

@@ -100,8 +100,14 @@ def from_pb(cls, price: price_pb2.Price) -> Self:
         Returns:
             Price object corresponding to the protobuf message.
         """
+        price_value = price.amount.value
+        try:
+            amount = Decimal(price_value)
+        except Exception as e:
+            _logger.error("Error converting price amount `%s`: %s", price_value, e)
+            amount = Decimal("NaN")
         return cls(
-            amount=Decimal(price.amount.value),
+            amount=amount,
             currency=Currency.from_pb(price.currency),
         )
 
@@ -140,7 +146,11 @@ def from_pb(cls, power: power_pb2.Power) -> Self:
         Returns:
             Power object corresponding to the protobuf message.
         """
-        return cls(mw=Decimal(power.mw.value))
+        try:
+            return cls(mw=Decimal(power.mw.value))
+        except Exception as e:
+            _logger.error("Error converting power amount `%s`: %s", power.mw.value, e)
+            return cls(mw=Decimal("NaN"))
 
     def to_pb(self) -> power_pb2.Power:
         """Convert a Power object to protobuf Power.