Edit utils.ts to use hf for uploads

app/utils/file_utils.py

@@ -3,12 +3,30 @@ import shutil
 
 from fastapi import UploadFile
 
-UPLOAD_DIR = "uploads"
+# UPLOAD_DIR = "uploads"
+# os.makedirs(UPLOAD_DIR, exist_ok=True)
+
+# def save_upload_file(file: UploadFile) -> str:
+#     file_path = os.path.join(UPLOAD_DIR, file.filename)
+#     with open(file_path, "wb") as buffer:
+#         shutil.copyfileobj(file.file, buffer)
+#     # print(f"File path: {file_path.split(',')[0]}{file_path.split(',')[-1]}")
+#     return file_path
+
+
+# Use ./data/uploads for writable folder inside Hugging Face Spaces
+UPLOAD_DIR = "./data/uploads"
 os.makedirs(UPLOAD_DIR, exist_ok=True)
 
 def save_upload_file(file: UploadFile) -> str:
+    """
+    Save an uploaded file to the UPLOAD_DIR
+    Returns the full file path
+    """
     file_path = os.path.join(UPLOAD_DIR, file.filename)
+
+    # Save file
     with open(file_path, "wb") as buffer:
         shutil.copyfileobj(file.file, buffer)
-    # print(f"File path: {file_path.split(',')[0]}{file_path.split(',')[-1]}")
+
     return file_path