[DRAFT] AAP-32854: Decouple Views from Pipelines

ansible_ai_connect/ai/api/eventbus/sinks.py

@@ -0,0 +1,40 @@
+#  Copyright Red Hat
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+from django.apps import apps
+from django.dispatch import Signal, receiver
+
+from ansible_ai_connect.ai.api.model_pipelines.pipelines import (
+    ChatBotParameters,
+    ModelPipelineChatBot,
+)
+
+chat_service = Signal()
+
+
+@receiver(chat_service)
+def chat_service_receiver(
+    sender, conversation_id, req_query, req_system_prompt, req_model_id, req_provider, **kwargs
+):
+    llm: ModelPipelineChatBot = apps.get_app_config("ai").get_model_pipeline(ModelPipelineChatBot)
+    data = llm.invoke(
+        ChatBotParameters.init(
+            query=req_query,
+            system_prompt=req_system_prompt,
+            model_id=req_model_id or llm.config.model_id,
+            provider=req_provider,
+            conversation_id=conversation_id,
+        )
+    )
+    return data

ansible_ai_connect/ai/api/eventbus/source.py

@@ -0,0 +1,37 @@
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations
+
+from enum import StrEnum
+
+from ansible_ai_connect.ai.api.eventbus.sinks import chat_service
+
+
+class EventType(StrEnum):
+    CHAT = "chat"
+
+
+class EventBus:
+
+    def send(self, event_type: EventType, **kwargs) -> any:
+        data = None
+        match event_type:
+            case "chat":
+                response = chat_service.send(
+                    event_type,
+                    conversation_id=kwargs["conversation_id"],
+                    req_query=kwargs["query"],
+                    req_system_prompt=kwargs["system_prompt"],
+                    req_model_id=kwargs["model_id"],
+                    req_provider=kwargs["provider"],
+                )
+                data = response[0][1]
+        return data

ansible_ai_connect/ai/api/views.py

@@ -32,6 +32,7 @@
 from rest_framework.views import APIView
 
 from ansible_ai_connect.ai.api.aws.exceptions import WcaSecretManagerError
+from ansible_ai_connect.ai.api.eventbus.source import EventBus, EventType
 from ansible_ai_connect.ai.api.exceptions import (
     BaseWisdomAPIException,
     ChatbotInvalidResponseException,
@@ -68,7 +69,6 @@
     WcaUserTrialExpired,
 )
 from ansible_ai_connect.ai.api.model_pipelines.pipelines import (
-    ChatBotParameters,
     ContentMatchParameters,
     MetaData,
     ModelPipelineChatBot,
@@ -1007,14 +1007,14 @@ def post(self, request) -> Response:
         self.event.conversation_id = conversation_id
         self.event.modelName = self.req_model_id or self.llm.config.model_id
 
-        data = self.llm.invoke(
-            ChatBotParameters.init(
-                query=req_query,
-                system_prompt=req_system_prompt,
-                model_id=self.req_model_id or self.llm.config.model_id,
-                provider=req_provider,
-                conversation_id=conversation_id,
-            )
+        event_bus: EventBus = apps.get_app_config("ai").get_event_bus()
+        data = event_bus.send(
+            EventType.CHAT,
+            conversation_id=conversation_id,
+            query=req_query,
+            system_prompt=req_system_prompt,
+            model_id=self.req_model_id,
+            provider=req_provider,
         )
 
         response_serializer = ChatResponseSerializer(data=data)

ansible_ai_connect/ai/apps.py

@@ -34,6 +34,7 @@
 )
 
 from .api.aws.wca_secret_manager import AWSSecretManager, DummySecretManager
+from .api.eventbus.source import EventBus
 
 logger = logging.getLogger(__name__)
 
@@ -50,6 +51,7 @@ class AiConfig(AppConfig):
     _ansible_lint_caller = UNINITIALIZED
     _reports_postman = UNINITIALIZED
     _pipeline_factory = UNINITIALIZED
+    _event_bus = UNINITIALIZED
 
     def ready(self) -> None:
         self._pipeline_factory = ModelPipelineFactory()
@@ -58,6 +60,11 @@ def ready(self) -> None:
     def get_model_pipeline(self, feature: Type[PIPELINE_TYPE]) -> PIPELINE_TYPE:
         return self._pipeline_factory.get_pipeline(feature)
 
+    def get_event_bus(self):
+        if self._event_bus is UNINITIALIZED:
+            self._event_bus = EventBus()
+        return self._event_bus
+
     def get_ari_caller(self):
         # Django calls apps.ready() when registering INSTALLED_APPS
         # We can therefore guarantee self.model_mesh_client is not None