[assistant] Added `ResponseEndEvent` and `IntentMatchedEvent`

platypush/message/event/assistant/__init__.py

@@ -1,9 +1,9 @@
 import re
 import sys
-from typing import Optional, Union
+from typing import Any, Mapping, Optional, Union
 
 from platypush.context import get_plugin
-from platypush.message.event import Event
+from platypush.message.event import Event, EventMatchResult
 from platypush.plugins.assistant import AssistantPlugin
 from platypush.utils import get_plugin_name_by_class
 
@@ -102,6 +102,23 @@ class ResponseEvent(AssistantEvent):
         )
 
 
+class ResponseEndEvent(ConversationEndEvent):
+    """
+    Event triggered when a response has been rendered on the assistant.
+    """
+
+    def __init__(self, *args, with_follow_on_turn: bool = False, **kwargs):
+        """
+        :param with_follow_on_turn: Set to true if the conversation expects a
+            user follow-up, false otherwise.
+        """
+        super().__init__(
+            *args,
+            with_follow_on_turn=with_follow_on_turn,
+            **kwargs,
+        )
+
+
 class NoResponseEvent(ConversationEndEvent):
     """
     Event triggered when a conversation ends with no response
@@ -205,6 +222,42 @@ class SpeechRecognizedEvent(AssistantEvent):
         return result
 
 
+class IntentMatchedEvent(AssistantEvent):
+    """
+    Event triggered when an intent is matched by a speech command.
+    """
+
+    def __init__(
+        self, *args, intent: str, slots: Optional[Mapping[str, Any]] = None, **kwargs
+    ):
+        """
+        :param intent: The intent that has been matched.
+        :param slots: The slots extracted from the intent, as a key-value mapping.
+        """
+        super().__init__(*args, intent=intent, slots=slots or {}, **kwargs)
+
+    def _matches_argument(
+        self, argname, condition_value, event_args, result: EventMatchResult
+    ):
+        if argname != 'slots':
+            return super()._matches_argument(
+                argname, condition_value, event_args, result
+            )
+
+        event_slots = set(event_args.get(argname, {}).items())
+        slots = set(self.args.get(argname, {}).items())
+
+        # All the slots in the condition must be in the event
+        if slots.difference(event_slots) == 0:
+            result.is_match = True
+            result.score += 1
+        else:
+            result.is_match = False
+            result.score = 0
+
+        return result
+
+
 class HotwordDetectedEvent(AssistantEvent):
     """
     Event triggered when a custom hotword is detected

platypush/plugins/assistant/__init__.py

@@ -242,7 +242,9 @@ class AssistantPlugin(Plugin, AssistantEntityManager, ABC):
             tts.say(text=text, **self.tts_plugin_args)
 
     def _on_response_render_end(self):
-        pass
+        from platypush.message.event.assistant import ResponseEndEvent
+
+        self._send_event(ResponseEndEvent)
 
     def _on_hotword_detected(self, hotword: Optional[str]):
         from platypush.message.event.assistant import HotwordDetectedEvent
@@ -256,6 +258,11 @@ class AssistantPlugin(Plugin, AssistantEntityManager, ABC):
         self._last_query = phrase
         self._send_event(SpeechRecognizedEvent, phrase=phrase)
 
+    def _on_intent_matched(self, intent: str, slots: Optional[Dict[str, Any]] = None):
+        from platypush.message.event.assistant import IntentMatchedEvent
+
+        self._send_event(IntentMatchedEvent, intent=intent, slots=slots)
+
     def _on_alarm_start(self):
         from platypush.message.event.assistant import AlarmStartedEvent