replace link option with direct file upload

pdf_summarizer/app.py

@@ -1,22 +1,45 @@
 import streamlit as st
 from transformers import pipeline
 import tensorflow as tf
-
+#from scraping_utils import FileImporter
 
 
 
 file_link: str = st.text_area("Put the PDF url here")
 pipe = pipeline("summarization") #import a specific, lightweight model. 
 
-def url_checker(file_link) -> bool:
+#add file uploader field
+#add pdf filetype checker
+uploaded_file = st.file_uploader("Choose a file")
+if uploaded_file is not None:
+    # To read file as bytes:
+    bytes_data = uploaded_file.getvalue()
+    st.write(bytes_data)
+
+    # To convert to a string based IO:
+    stringio = StringIO(uploaded_file.getvalue().decode("utf-8"))
+    st.write(stringio)
+
+    # To read file as string:
+    string_data = stringio.read()
+    st.write(string_data)
+
+    # Can be used wherever a "file-like" object is accepted:
+    dataframe = pd.read_csv(uploaded_file)
+    st.write(dataframe)
+
+
+
+
+def url_checker(uploaded_file) -> bool:
     pdf_substring = ".pdf" or "/pdf"
-    if pdf_substring not in file_link:
-        st.write("Incorrect file type detected. Please link to pdfs only - file must end in .pdf")
+    if pdf_substring not in uploaded_file:
+        st.write("Incorrect file type detected. Please upload pdfs only - file must end in .pdf")
     return True
 #this is dumb with incorrect return types
 url_checker(file_link)
 
-#write a function for file ingestion and text extraction.
+
 
 
 def text_extract(file) -> list: