create config.py

config.py

@@ -0,0 +1,67 @@
+# FILE: config.py
+# (Corrected and complete version with all constants)
+
+import os
+import dspy
+import logging
+from dotenv import load_dotenv
+from dspy_llm_wrapper import SyncCustomGeminiDspyLM
+
+# Load environment variables from a .env file
+load_dotenv()
+
+# Setup basic logging
+logging.basicConfig(level=logging.INFO, format='{levelname} {asctime} {name}: {message}', style='{')
+logger = logging.getLogger(__name__)
+
+API_KEY = os.environ.get("GOOGLE_API_KEY")
+
+def initialize_dspy():
+    """Configures and returns the DSPy Language Model instance."""
+    if not API_KEY:
+        logger.error("FATAL: GOOGLE_API_KEY not found. Cannot initialize DSPy.")
+        return None
+    
+    try:
+        LITELLM_MODEL_STRING = "gemini/gemini-2.5-flash-preview-04-17"
+        custom_lm = SyncCustomGeminiDspyLM(
+            model=LITELLM_MODEL_STRING,
+            api_key=API_KEY,
+            temperature=0.7,
+        )
+        dspy.settings.configure(lm=custom_lm)
+        logger.info(f"DSPy configured globally with model: {LITELLM_MODEL_STRING}")
+        return custom_lm
+    except Exception as e:
+        logger.error(f"Fatal error configuring DSPy: {e}")
+        return None
+
+# --- Application Constants ---
+
+# State Keys for managing the conversation state
+STATE_STAGE = "stage"
+STATE_HISTORY = "conversation_history"
+STATE_FINAL_SYLLABUS = "final_syllabus_xml"
+STATE_EXPLAINER_PROMPT = "explainer_system_prompt"
+STATE_EXPLANATION_START_INDEX = "explanation_start_index"
+STATE_CURRENT_TITLE = "current_title"                     # <-- ADDED
+STATE_GENERATED_TITLE = "generated_title"                 # <-- ADDED
+STATE_RESOURCE_SUMMARY_OVERVIEW = "resource_summary_overview_for_manager"
+STATE_RESOURCE_TYPE_FOR_SYLLABUS = "resource_type_for_syllabus_gen"
+STATE_RESOURCE_CONTENT_JSON_FOR_SYLLABUS = "resource_content_json_for_syllabus_gen"
+
+# Flag Keys for UI updates
+STATE_DISPLAY_SYLLABUS_FLAG = "display_syllabus_flag"
+STATE_TRANSITION_EXPLAINER_FLAG = "transition_to_explainer_flag"
+
+# Stage Names
+STAGE_START = "START"
+STAGE_NEGOTIATING = "NEGOTIATING"
+STAGE_EXPLAINING = "EXPLAINING"
+STAGE_ERROR = "ERROR"
+STATE_UPLOADED_FILENAMES = "uploaded_filenames_list"
+
+# Chat Logic Constants
+DEFAULT_CHAT_TITLE = "New Chat"                         # <-- ADDED
+TITLE_GENERATION_THRESHOLD = 4                          # <-- ADDED
+TITLE_MAX_HISTORY_SNIPPET_FOR_TITLE = 6                 # <-- ADDED