Update app.py

app.py

@@ -439,6 +439,50 @@ def zip_folder(foldername):
     # Send the zipped file to the client
     return send_from_directory(app.config['MAIN_FOLDER'], zip_filename, as_attachment=True)
 
+@app.route('/upload_data_file', methods=['GET', 'POST'])
+def upload_data_file():
+    try:
+        if request.method == 'POST':
+            if 'file' not in request.files:
+                flash('No file part', 'error')
+                return redirect(request.url)
+
+            file = request.files['file']
+            if file.filename == '':
+                flash('No selected file', 'error')
+                return redirect(request.url)
+
+            filename = secure_filename(file.filename)
+            file_path = os.path.join(app.config['DATA_FOLDER'], filename)
+            file.save(file_path)
+
+            flash(f'File {filename} uploaded/overwritten successfully!', 'success')
+        return redirect(url_for('show_data_files'))
+
+    except Exception as e:
+        flash(f"Error: {str(e)}", 'error')
+        return redirect(request.referrer)
+    
+@app.route('/data_files', methods=['GET'])
+def show_data_files():
+    try:
+        files = os.listdir(app.config['DATA_FOLDER'])
+        return render_template('data_files.html', files=files)
+
+    except Exception as e:
+        flash(f"Error retrieving files: {str(e)}", 'error')
+        return redirect(url_for('index'))
+
+@app.route('/download/<filename>', methods=['GET'])
+def download_files(filename):
+    try:
+        file_path = os.path.join(app.config['DATA_FOLDER'], filename)
+        return send_file(file_path, as_attachment=True)
+
+    except Exception as e:
+        flash(f"Error downloading {filename}: {str(e)}", 'error')
+        return redirect(url_for('show_data_files'))
+
 if __name__ == '__main__':
     app.run(debug=True)