Update chat_handler.py

chat_handler.py

@@ -1,25 +1,39 @@
 """
-Flare – Chat Handler  (Spark /generate + safe-intent)
-====================================================
+Flare – Chat Handler  (Spark /generate + safe-intent + config-validate)
+======================================================================
 • X-Session-ID header
-• Spark payload: {project_name, user_input, context, system_prompt}
-• Eğer model #DETECTED_INTENT:<label> döndürür ve <label> izinli liste
-  dışında ise, mesaj small-talk olarak kabul edilir.
+• Config JSONC parse hatası -> log + graceful exit
 """
 
-import re, json, uuid, httpx, commentjson
+import re, json, uuid, sys, httpx, commentjson
 from datetime import datetime
 from typing import Dict, List, Optional
 
 from fastapi import APIRouter, HTTPException, Header
 from pydantic import BaseModel
+from commentjson import JSONLibraryException
 
 from prompt_builder import build_intent_prompt, build_parameter_prompt, log
 
 # --------------------------------------------------------------------------- #
-# CONFIG
+# CONFIG LOADING + VALIDATION
 # --------------------------------------------------------------------------- #
-CFG = commentjson.load(open("service_config.jsonc", encoding="utf-8"))
+def load_config(path: str = "service_config.jsonc") -> dict:
+    try:
+        with open(path, encoding="utf-8") as f:
+            cfg = commentjson.load(f)
+        log("✅ service_config.jsonc parsed successfully.")
+        return cfg
+    except JSONLibraryException as e:
+        log("❌ CONFIG PARSE ERROR:")
+        log(str(e))
+        sys.exit(1)
+    except FileNotFoundError:
+        log(f"❌ Config file '{path}' not found.")
+        sys.exit(1)
+
+CFG = load_config()
+
 PROJECTS = {p["name"]: p for p in CFG["projects"]}
 APIS     = {a["name"]: a for a in CFG["apis"]}
 SPARK_URL = CFG["config"]["spark_endpoint"].rstrip("/") + "/generate"
@@ -32,7 +46,7 @@ class Session:
     def __init__(self, project_name: str):
         self.id = str(uuid.uuid4())
         self.project = PROJECTS[project_name]
-        self.history: List[Dict[str, str]] = []   # {"role","content"}
+        self.history: List[Dict[str, str]] = []
         self.variables: Dict[str, str] = {}
         self.awaiting: Optional[Dict] = None
         log(f"🆕 Session {self.id} for {project_name}")
@@ -99,25 +113,22 @@ async def chat(body: ChatBody,
     user_msg = body.user_input.strip()
     s.history.append({"role": "user", "content": user_msg})
 
-    # ---------------- Follow-up? ----------------
+    # ---------------- Follow-up?
     if s.awaiting:
         answer = await _followup(s, user_msg)
         s.history.append({"role": "assistant", "content": answer})
         return ChatResponse(session_id=s.id, answer=answer)
 
-    # ---------------- Intent detection ----------------
+    # ---------------- Intent detect
     gen_prompt = s.project["versions"][0]["general_prompt"]
     intent_raw = await spark_generate(s, gen_prompt, user_msg)
 
-    # --- Etiket yoksa → small talk cevabı olduğu gibi döndür
     if not intent_raw.startswith("#DETECTED_INTENT:"):
         s.history.append({"role": "assistant", "content": intent_raw})
         return ChatResponse(session_id=s.id, answer=intent_raw)
 
-    # --- Etiket var → ayrıştır
     intent_name = intent_raw.split(":", 1)[1].strip()
     if intent_name not in ALLOWED_INTENTS:
-        # Etiket geçersiz → small talk olarak ilk kısmı döndür
         clean = intent_raw.split("#DETECTED_INTENT")[0].split("\nassistant")[0].strip()
         s.history.append({"role": "assistant", "content": clean})
         return ChatResponse(session_id=s.id, answer=clean)
@@ -145,7 +156,6 @@ def _missing(s, intent_cfg):
 
 async def _handle_intent(s, intent_cfg, user_msg):
     missing = _missing(s, intent_cfg)
-
     if missing:
         p_prompt = build_parameter_prompt(intent_cfg, missing, user_msg, s.history)
         p_raw    = await spark_generate(s, p_prompt, user_msg)
@@ -166,8 +176,8 @@ async def _handle_intent(s, intent_cfg, user_msg):
 async def _followup(s, user_msg):
     intent_cfg = s.awaiting["intent"]
     missing    = s.awaiting["missing"]
-    p_prompt   = build_parameter_prompt(intent_cfg, missing, user_msg, s.history)
-    p_raw      = await spark_generate(s, p_prompt, user_msg)
+    p_prompt = build_parameter_prompt(intent_cfg, missing, user_msg, s.history)
+    p_raw    = await spark_generate(s, p_prompt, user_msg)
     if not p_raw.startswith("#PARAMETERS:"):
         return "Üzgünüm, anlayamadım."
     if bad := _process_params(s, intent_cfg, p_raw):