Update app.py

app.py

@@ -178,32 +178,27 @@ class VectorSystem:
         if not question:
             return "⚠️ Please enter a Question."
 
-        # NEW: use 'similarity_search_with_score' to see the numbers
-        # Lower Score = Better Match (L2 Distance)
+        # Lower Score = Better Match
         results = self.vector_store.similarity_search_with_score(question, k=3)
         
         output_text = "### 🔍 Expanded Context Analysis:\n"
         
         for i, (doc, score) in enumerate(results):
-            # Get the ID of the matched chunk
             chunk_id = doc.metadata['id']
             
-            # Retrieve Previous and Next chunks from our saved list
-            # We use max/min to ensure we don't crash if it's the first or last chunk
-            prev_chunk = self.all_chunks[chunk_id - 1] if chunk_id > 0 else "[Start of Text]"
-            next_chunk = self.all_chunks[chunk_id + 1] if chunk_id < len(self.all_chunks) - 1 else "[End of Text]"
+            # Retrieve Previous and Next chunks
+            # Logic: If it's the first chunk (ID 0), there is no 'prev', so returns empty string
+            prev_chunk = self.all_chunks[chunk_id - 1] if chunk_id > 0 else "(Start of Text)"
+            next_chunk = self.all_chunks[chunk_id + 1] if chunk_id < len(self.all_chunks) - 1 else "(End of Text)"
             
             output_text += f"\n#### 🎯 Match #{i+1} (Distance Score: {score:.4f})\n"
-            output_text += f"*A lower score means a closer match.*\n\n"
             
-            # Display Preceding Context (Greyed out to show it's context)
-            output_text += f"> **Preceding Context:** ...{prev_chunk[-200:]}\n" 
+            # --- CHANGED HERE: Removed [-200:] and [:200] ---
             
-            # Display The Actual Match (Bold)
-            output_text += f"> **MATCH:** {doc.page_content}\n"
+            output_text += f"> **Preceding Context:**\n{prev_chunk}\n\n" 
+            output_text += f"> **MATCH:**\n**{doc.page_content}**\n\n"
+            output_text += f"> **Succeeding Context:**\n{next_chunk}\n"
             
-            # Display Succeeding Context
-            output_text += f"> **Succeeding Context:** {next_chunk[:200]}...\n"
             output_text += "---\n"
 
         return output_text