Update app.py

app.py

@@ -31,12 +31,18 @@ class PDFChatbot:
         pdf_directory = "data"
         
         # Duyệt qua các file trong thư mục và đọc từng file PDF
-        pdf_reader = PyPDF2.PdfReader(pdf_file)
-        text = ""
-        for page_num in range(len(pdf_reader.pages)):
-            page = pdf_reader.pages[page_num]
-            text += page.extract_text() + "\n"
-        words = text.split()
+        for filename in os.listdir(pdf_directory):
+            if filename.lower().endswith(".pdf"):
+                pdf_path = os.path.join(pdf_directory, filename)
+                with open(pdf_path, "rb") as pdf_file:
+                    pdf_reader = PyPDF2.PdfReader(pdf_file)
+                    text = ""
+                    for page_num in range(len(pdf_reader.pages)):
+                        page = pdf_reader.pages[page_num]
+                        text += page.extract_text() + "\n"
+                    
+                    # Optional: split into words
+                    words = text.split()
         chunks = []
         current_chunk = []
         current_length = 0