Update app.py

app.py

@@ -64,26 +64,30 @@ def index():
 
 @app.route("/summarize", methods=["POST"])
 def summarize():
-    """Handle file uploads and summarization."""
     logger.info("Summarize endpoint called.")
-    
+
+    # Check if a file is in the request
     if "file" not in request.files:
         logger.error("No file uploaded.")
         return jsonify({"error": "No file uploaded"}), 400
-    
+
     file = request.files["file"]
+
+    # Check if file is empty
     if file.filename == "":
         logger.error("No file selected.")
         return jsonify({"error": "No selected file"}), 400
-    
+
+    # Check if file has an allowed extension
     if not allowed_file(file.filename):
         logger.error(f"Unsupported file format: {file.filename}")
         return jsonify({"error": "Unsupported file format"}), 400
 
+    # Process the file
     filename = secure_filename(file.filename)
     file_content = file.read()
     file_ext = filename.rsplit(".", 1)[1].lower()
-    
+
     try:
         if file_ext == "pdf":
             text = summarize_pdf(file_content)
@@ -94,15 +98,15 @@ def summarize():
         elif file_ext == "txt":
             text = summarize_txt(file_content)
         else:
+            logger.error("Unsupported file format received.")
             return jsonify({"error": "Unsupported file format"}), 400
 
-        if not text.strip():
-            return jsonify({"error": "No extractable text found in the document"}), 400
-
+        # Generate summary
         summary = summarize_text(text)
+
         logger.info(f"File {filename} summarized successfully.")
         return jsonify({"filename": filename, "summary": summary})
-    
+
     except Exception as e:
         logger.error(f"Error processing file {filename}: {str(e)}")
         return jsonify({"error": f"Error processing file: {str(e)}"}), 500