Update app.py

app.py

@@ -12,8 +12,22 @@ import streamlit as st
 
 # ---------- CONFIG ----------
 def summarize_text(text: str) -> str:
-    summarizer = pipeline("summarization", model="sshleifer/distilbart-cnn-12-6")
-    return summarizer(text, max_length=200, min_length=30, do_sample=False)[0]['summary_text']
+    if not text.strip():
+        return "Summary not available (empty text)."
+
+    try:
+        # Truncate long text safely
+        if len(text) > 2000:
+            text = text[:2000]
+
+        summarizer = pipeline("summarization", model="sshleifer/distilbart-cnn-12-6")
+        result = summarizer(text, max_length=200, min_length=30, do_sample=False)
+
+        if result and 'summary_text' in result[0]:
+            return result[0]['summary_text']
+        return "Summary not available (model did not return text)."
+    except Exception as e:
+        return f"Summary failed: {str(e)}"
 
 def extract_text_from_pdf(pdf_path: str) -> str:
     doc = fitz.open(pdf_path)