Update controllers/project_controller.py

controllers/project_controller.py

@@ -1,11 +1,22 @@
-from fastapi import APIRouter, Request
+from fastapi import APIRouter, Request, Header
 from service_config import ServiceConfig
+from session import SessionStore
+from prompt_engine import PromptEngine
+from llm_connector import LLMConnector
+from api_connector import APIConnector
+from validation_engine import ValidationEngine
 from log import log
 import json
+import traceback
 
 router = APIRouter()
 service_config = ServiceConfig()
 service_config.load()
+session_store = SessionStore()
+prompt_engine = PromptEngine(service_config)
+llm_connector = LLMConnector(service_config)
+api_connector = APIConnector(service_config)
+validation_engine = ValidationEngine()
 
 def save_config():
     with open(service_config.config_path, "w", encoding="utf-8") as f:
@@ -20,6 +31,93 @@ def save_config():
             "apis": service_config.apis
         }, f, indent=2)
 
+@router.post("/start_chat")
+def start_chat(request: Request):
+    project_name = request.query_params.get("project_name")
+    if not project_name:
+        return {"error": "Missing project_name parameter."}
+    session = session_store.create_session(project_name)
+    return {"session_id": session.session_id}
+
+@router.post("/chat")
+async def chat(request: Request, x_session_id: str = Header(None)):
+    if not x_session_id:
+        return {"error": "Missing X-Session-ID header."}
+    session = session_store.get_session(x_session_id)
+    if not session:
+        return {"error": "Invalid or expired session."}
+    try:
+        body = await request.json()
+        user_input = body.get("user_input", "").strip()
+        if not user_input:
+            return {"error": "Empty user input."}
+        session.chat_history.append({"role": "user", "content": user_input})
+        project_name = session.project_name
+
+        if session.state == "intent_detection":
+            prompt = prompt_engine.build_intent_prompt(project_name)
+            llm_response = llm_connector.call_spark(project_name, prompt, session.chat_history)
+            if llm_response is None:
+                return {"error": "Failed to get intent detection result."}
+            intent = llm_response.get("intent")
+            params = llm_response.get("params", {})
+            missing = llm_response.get("missing", [])
+            session.last_intent = intent
+            session.variables.update(params)
+            session.awaiting_parameters = missing
+            if missing:
+                session.state = "parameter_extraction"
+                return {"response": f"Please provide: {', '.join(missing)}"}
+            session.state = "validation"
+
+        if session.state == "parameter_extraction":
+            prompt = prompt_engine.build_parameter_prompt(project_name, session.last_intent, session.awaiting_parameters)
+            llm_response = llm_connector.call_spark(project_name, prompt, session.chat_history)
+            if llm_response is None:
+                return {"error": "Failed to extract parameters."}
+            params = llm_response.get("params", {})
+            missing = llm_response.get("missing", [])
+            session.variables.update(params)
+            session.awaiting_parameters = missing
+            if missing:
+                return {"response": f"Please provide: {', '.join(missing)}"}
+            session.state = "validation"
+
+        if session.state == "validation":
+            intent_def = next((i for i in service_config.get_project_intents(project_name) if i["name"] == session.last_intent), None)
+            if not intent_def:
+                return {"error": f"Intent definition not found: {session.last_intent}"}
+            is_valid, errors = validation_engine.validate_parameters(intent_def, session.variables)
+            if not is_valid:
+                return {"response": " ".join(errors)}
+            session.state = "api_call"
+
+        if session.state == "api_call":
+            intent_def = next((i for i in service_config.get_project_intents(project_name) if i["name"] == session.last_intent), None)
+            api_response = api_connector.call_api(intent_def, session)
+            if "fallback" in api_response:
+                return {"response": api_response["fallback"]}
+            session.state = "humanization"
+            session.variables["api_result"] = api_response
+
+        if session.state == "humanization":
+            prompt = prompt_engine.build_humanization_prompt(project_name, session.last_intent)
+            chat_history = [{"role": "system", "content": str(session.variables["api_result"])}]
+            humanized_response = llm_connector.call_spark(project_name, prompt, chat_history)
+            if humanized_response is None:
+                return {"error": "Failed to humanize response."}
+            session.chat_history.append({"role": "assistant", "content": humanized_response.get("answer")})
+            session.state = "intent_detection"
+            session.last_intent = None
+            session.variables = {}
+            session.awaiting_parameters = []
+            return {"response": humanized_response.get("answer")}
+
+    except Exception as e:
+        log(f"❌ Error in chat: {e}")
+        traceback.print_exc()
+        return {"error": str(e)}
+
 @router.get("/list_projects")
 def list_projects():
     projects = list(service_config.projects.keys())
@@ -58,8 +156,6 @@ async def delete_project(request: Request):
     log(f"🗑️ Deleted project: {project_name}")
     return {"message": f"Project {project_name} deleted."}
 
-# === INTENT CRUD ===
-
 @router.get("/list_intents")
 def list_intents(project_name: str):
     project = service_config.get_project(project_name)
@@ -115,14 +211,12 @@ async def delete_intent(request: Request):
     log(f"🗑️ Deleted intent: {intent_name} from project: {project_name}")
     return {"message": f"Intent {intent_name} deleted from project {project_name}."}
 
-# === PARAMETER CRUD ===
-
 @router.post("/add_parameter")
 async def add_parameter(request: Request):
     data = await request.json()
     project_name = data.get("project_name")
     intent_name = data.get("intent_name")
-    parameter = data.get("parameter")  # {name, type, regex, validation_message, extraction_prompt}
+    parameter = data.get("parameter")
     if not project_name or not intent_name or not parameter:
         return {"error": "Project, intent, and parameter data required."}