intercom_api: add destination_is native condition, reduce lambdas

New condition intercom_api.destination_is replaces lambda for
checking current call destination:
  intercom_api.destination_is:
    id: intercom
    destination: "Home Assistant"

Applied to generic-s3-duplex-va-intercom-sm-test.yaml.

update_status lambda is justified: 12-priority LED state machine
with change detection (g_applied_led) has no native YAML equivalent.
Globals comparison (g_va_state, g_mww_recent, g_barge_in_pending)
has no native conditions in ESPHome upstream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: n-IA-hane

esphome/components/intercom_api/__init__.py

@@ -62,6 +62,7 @@
 IntercomIsIncomingCondition = intercom_api_ns.class_("IntercomIsIncomingCondition", automation.Condition)
 IntercomIsAnsweringCondition = intercom_api_ns.class_("IntercomIsAnsweringCondition", automation.Condition)
 IntercomIsInCallCondition = intercom_api_ns.class_("IntercomIsInCallCondition", automation.Condition)
+IntercomDestinationIsCondition = intercom_api_ns.class_("IntercomDestinationIsCondition", automation.Condition)
 
 def _aec_schema(value):
     """Validate aec_id - import esp_aec only if used."""
@@ -496,3 +497,24 @@ async def intercom_is_in_call_to_code(config, condition_id, template_arg, args):
     parent = await cg.get_variable(config[CONF_ID])
     cg.add(var.set_parent(parent))
     return var
+
+
+CONF_DESTINATION = "destination"
+
+@automation.register_condition(
+    "intercom_api.destination_is",
+    IntercomDestinationIsCondition,
+    automation.maybe_simple_id(
+        {
+            cv.GenerateID(): cv.use_id(IntercomApi),
+            cv.Required(CONF_DESTINATION): cv.templatable(cv.string),
+        }
+    ),
+)
+async def intercom_destination_is_to_code(config, condition_id, template_arg, args):
+    var = cg.new_Pvariable(condition_id, template_arg)
+    parent = await cg.get_variable(config[CONF_ID])
+    cg.add(var.set_parent(parent))
+    templ = await cg.templatable(config[CONF_DESTINATION], args, cg.std_string)
+    cg.add(var.set_destination(templ))
+    return var

esphome/components/intercom_api/intercom_api.h

@@ -604,6 +604,15 @@ class IntercomIsInCallCondition : public Condition<Ts...>, public Parented<Inter
   }
 };
 
+template<typename... Ts>
+class IntercomDestinationIsCondition : public Condition<Ts...>, public Parented<IntercomApi> {
+ public:
+  TEMPLATABLE_VALUE(std::string, destination)
+  bool check(const Ts &...x) override {
+    return this->parent_->get_current_destination() == this->destination_.value(x...);
+  }
+};
+
 }  // namespace intercom_api
 }  // namespace esphome
 

generic-s3-duplex-va-intercom-sm-test.yaml

@@ -394,7 +394,9 @@ intercom_api:
     - script.execute: update_status
     - if:
         condition:
-          lambda: 'return id(intercom).get_current_destination() == "Home Assistant";'
+          intercom_api.destination_is:
+            id: intercom
+            destination: "Home Assistant"
         then:
           - homeassistant.event:
               event: esphome.intercom_call