Improve error handling for planned dispatches

Refactor planned dispatches handling to check for key existence before accessing data.

Author: thecem

custom_components/octopus_germany/__init__.py

@@ -391,9 +391,9 @@ async def process_api_data(data, account_number, api):
         )
 
         # Handle dispatch data if it exists
-        planned_dispatches = data.get("plannedDispatches", [])
-        if planned_dispatches is None:  # API error - keep previous cached data
-            # Preserve existing planned_dispatches from previous successful fetch
+        # Check if key exists at all - if not, API had error and we should cache
+        if "plannedDispatches" not in data:
+            # API error - plannedDispatches was removed from result, use cached data
             if (
                 account_number in self.data
                 and "planned_dispatches" in self.data[account_number]
@@ -406,6 +406,10 @@ async def process_api_data(data, account_number, api):
                 )
             else:
                 planned_dispatches = []  # No previous data available
+        else:
+            planned_dispatches = data.get("plannedDispatches")
+            if planned_dispatches is None:  # Explicit None from API
+                planned_dispatches = []
         result_data[account_number]["planned_dispatches"] = planned_dispatches
 
         completed_dispatches = data.get("completedDispatches", [])