Set correct response value in service description when async_set_service_schema is used (#95985)

* Mark scripts as response optional, make it always return a response if return_response is set

* Update test_init.py

* Revert "Update test_init.py"

This reverts commit 8e113e54dbf183db06e1d1f0fea95d6bc59e4e80.

* Split + add test

homeassistant/helpers/service.py

@@ -678,6 +678,13 @@ def async_set_service_schema(
     if "target" in schema:
         description["target"] = schema["target"]
 
+    if (
+        response := hass.services.supports_response(domain, service)
+    ) != SupportsResponse.NONE:
+        description["response"] = {
+            "optional": response == SupportsResponse.OPTIONAL,
+        }
+
     hass.data.pop(ALL_SERVICE_DESCRIPTIONS_CACHE, None)
     hass.data[SERVICE_DESCRIPTION_CACHE][(domain, service)] = description
 

tests/helpers/test_service.py

@@ -589,6 +589,19 @@ async def test_async_get_all_descriptions(hass: HomeAssistant) -> None:
         None,
         SupportsResponse.ONLY,
     )
+    hass.services.async_register(
+        logger.DOMAIN,
+        "another_service_with_response",
+        lambda x: None,
+        None,
+        SupportsResponse.OPTIONAL,
+    )
+    service.async_set_service_schema(
+        hass,
+        logger.DOMAIN,
+        "another_service_with_response",
+        {"description": "response service"},
+    )
 
     descriptions = await service.async_get_all_descriptions(hass)
     assert "another_new_service" in descriptions[logger.DOMAIN]
@@ -600,6 +613,10 @@ async def test_async_get_all_descriptions(hass: HomeAssistant) -> None:
     assert descriptions[logger.DOMAIN]["service_with_only_response"]["response"] == {
         "optional": False
     }
+    assert "another_service_with_response" in descriptions[logger.DOMAIN]
+    assert descriptions[logger.DOMAIN]["another_service_with_response"]["response"] == {
+        "optional": True
+    }
 
     # Verify the cache returns the same object
     assert await service.async_get_all_descriptions(hass) is descriptions