291 files

custom_components/spook/ectoplasms/input_number/services/__init__.py

@@ -7,7 +7,7 @@ from typing import TYPE_CHECKING
 
 import voluptuous as vol
 
-from homeassistant.exceptions import HomeAssistantError
+from homeassistant.exceptions import HomeAssistantError, ServiceValidationError
 from homeassistant.helpers import config_validation as cv
 
 from ....const import DOMAIN
@@ -54,11 +54,17 @@ def step_amount(entity: InputNumber, call: ServiceCall) -> float:
         math.isclose(remainder, 0, rel_tol=0, abs_tol=_FLOAT_TOLERANCE)
         or math.isclose(remainder, step, rel_tol=0, abs_tol=_FLOAT_TOLERANCE)
     ):
-        msg = (
-            f"Amount {amount} not valid for {entity.entity_id}, "
-            f"it needs to be a multiple of {step}"
+        # A validation error, so the frontend shows this message. It shows a
+        # plain ValueError as "Unknown error".
+        raise ServiceValidationError(
+            translation_domain=DOMAIN,
+            translation_key="amount_not_a_multiple_of_step",
+            translation_placeholders={
+                "amount": str(amount),
+                "entity_id": entity.entity_id,
+                "step": str(step),
+            },
         )
-        raise ValueError(msg)
 
     return amount