Update app.py

app.py

@@ -9,7 +9,6 @@ from huggingface_hub import InferenceClient
 from docx import Document
 from pptx import Presentation
 
-# Optional OCR (graceful fallback if missing)
 try:
     from PIL import Image
 except Exception:
@@ -20,7 +19,6 @@ try:
 except Exception:
     pytesseract = None
 
-# Optional web search scaffold (OFF by default)
 try:
     import requests
 except Exception:
@@ -59,7 +57,6 @@ CASE_PREFIX = "CaseStudyContent__"
 def _is_placeholder_name(name: str) -> bool:
     return "placeholder" in (name or "").lower()
 
-
 # =====================================================
 # PER-MODE GENERATION CONTROLS (creativity/speed)
 # =====================================================
@@ -75,7 +72,6 @@ GEN_CONFIG = {
     "Stakeholder": {"temperature": 0.45, "top_p": 0.95, "max_tokens": 420},
 }
 
-
 # =====================================================
 # OPTIONAL WEB SEARCH (OFF by default)
 # =====================================================
@@ -99,9 +95,8 @@ def web_search_snippets(query: str, max_chars: int = 1500) -> str:
         return ""
     return ""
 
-
 # =====================================================
-# MODE INSTRUCTIONS
+# MODE INSTRUCTIONS ****** CUSTOMIZE ******  
 # =====================================================
 
 MODE_INSTRUCTIONS = {
@@ -231,7 +226,7 @@ def strip_think(text: str) -> str:
 
 
 # =====================================================
-# FILE EXTRACTION (bounded, multi-file, + optional OCR)
+# FILE EXTRACTION 
 # =====================================================
 
 def read_text_file(path: str, max_chars: int = 2000) -> str:
@@ -409,7 +404,7 @@ def files_to_text(upload_paths) -> tuple[str, list[dict], str]:
 
 
 # =====================================================
-# STATIC KB INGESTION (loaded once at startup)
+# STATIC KB INGESTION
 # =====================================================
 
 def _list_kb_files():
@@ -467,7 +462,7 @@ CASE_KB_TEXT, CASE_PLACEHOLDER_ONLY = _kb_extract(CASE_PATHS, "CaseStudyContent"
 
 
 # =====================================================
-# DEMO ASSUMPTIONS (your preferred phrasing)
+# DEMO ASSUMPTIONS
 # =====================================================
 
 DEMO_COURSE_NAME = 'AI in Business Analytics & Digital Transformation'
@@ -546,7 +541,7 @@ def complete_llm(messages, mode: str) -> str:
 
 
 # =====================================================
-# PER-MODE CHAT HISTORY SUPPORT (NEW)
+# PER-MODE CHAT HISTORY SUPPORT
 # =====================================================
 
 def load_history_for_mode(selected_mode, histories):
@@ -555,7 +550,7 @@ def load_history_for_mode(selected_mode, histories):
 
 
 # =====================================================
-# MAIN CHAT HANDLER (UPDATED to use per-mode histories)
+# MAIN CHAT HANDLER
 # =====================================================
 
 def chat_user(message, visible_history, mode, upload_paths, histories, memory_state, flags_state):
@@ -854,7 +849,6 @@ with gr.Blocks(css=CSS) as demo:
         value="Course Detailer",
     )
 
-    # NEW: store per-mode histories
     histories_state = gr.State({m: [] for m in STUDENT_MODES})
     memory_state = gr.State({"session": []})
     flags_state = gr.State({"demo_course_intro_shown": False, "demo_case_intro_shown": False})
@@ -881,21 +875,18 @@ with gr.Blocks(css=CSS) as demo:
             reset_btn = gr.Button("Reset Conversation")
             export_btn = gr.DownloadButton("Export Conversation")
 
-    # NEW: switch visible chat when mode changes
     mode.change(
         load_history_for_mode,
         inputs=[mode, histories_state],
         outputs=[chatbot],
     )
 
-    # UPDATED: submit reads/writes the per-mode history state
     message.submit(
         chat_user,
         inputs=[message, chatbot, mode, upload, histories_state, memory_state, flags_state],
         outputs=[chatbot, message, upload, histories_state, memory_state, flags_state],
     )
 
-    # UPDATED: reset now resets all mode histories
     reset_btn.click(
         reset_chat,
         inputs=[histories_state, memory_state, flags_state],