feat: GPT integration (#526)

* feat: GPT integration

* dev: move engine value to env variable

apiserver/plane/api/views/gpt.py

@@ -0,0 +1,54 @@
+# Third party imports
+from rest_framework.response import Response
+from rest_framework import status
+import openai
+from sentry_sdk import capture_exception
+
+# Django imports
+from django.conf import settings
+
+# Module imports
+from .base import BaseAPIView
+from plane.api.permissions import ProjectEntityPermission
+
+
+class GPTIntegrationEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def post(self, request, slug, project_id):
+        try:
+            if not settings.OPENAI_API_KEY or not settings.GPT_ENGINE:
+                return Response(
+                    {"error": "OpenAI API key and engine is required"},
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+
+            prompt = request.data.get("prompt", False)
+            task = request.data.get("task", False)
+
+            if not prompt or not task:
+                return Response(
+                    {"error": "Task and prompt are required"},
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+
+            final_text = task + prompt
+
+            openai.api_key = settings.OPENAI_API_KEY
+            response = openai.Completion.create(
+                engine=settings.GPT_ENGINE,
+                prompt=final_text,
+                temperature=0.7,
+                max_tokens=1024,
+            )
+
+            text = response.choices[0].text.strip()
+            return Response({"response": text}, status=status.HTTP_200_OK)
+        except Exception as e:
+            capture_exception(e)
+            return Response(
+                {"error": "Something went wrong please try again later"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )