Update src/streamlit_app.py

src/streamlit_app.py

@@ -4,42 +4,42 @@ import requests
 import json
 import os
 from bs4 import BeautifulSoup
-from transformers import MarianMTModel, MarianTokenizer # whisper is no longer needed as audio recorder is removed
+from transformers import MarianMTModel, MarianTokenizer
 
 # Configure the Streamlit page
 st.set_page_config(page_title="📍 BharatPulse - Local News & Sentiment", layout="wide")
 
 # --- User Authentication Functions ---
 # IMPORTANT: For production, this 'users.json' file will not persist across deployments
-# on cloud platforms like Streamlit Community Cloud. Consider using a database (e.g., Firebase, PostgreSQL)
-# for persistent user data.
-# Changed USERS_FILE path to /tmp/ for write permissions in deployed environments
-USERS_FILE = "/tmp/users.json"
+# on cloud platforms like Streamlit Community Cloud. For persistent user data,
+# a proper database (e.g., Firebase Firestore, PostgreSQL) is REQUIRED.
+# If you are seeing PermissionError even with /tmp, your environment does not allow file writes.
+USERS_FILE = "/tmp/users.json" # Attempt to use /tmp for write permissions
 
 def load_users():
     """Loads user data from the JSON file."""
-    if not os.path.exists(USERS_FILE):
-        return {}
-    try:
-        with open(USERS_FILE, "r") as f:
-            return json.load(f)
-    except json.JSONDecodeError:
-        # Handle case where file might be empty or corrupted
-        st.error("Error loading user data. Initializing empty user database.")
-        return {}
-    except Exception as e:
-        st.error(f"An unexpected error occurred while loading users: {e}")
-        return {}
-
+    users_data = {}
+    if os.path.exists(USERS_FILE):
+        try:
+            with open(USERS_FILE, "r") as f:
+                users_data = json.load(f)
+        except json.JSONDecodeError:
+            st.error("Error: users.json file is corrupted. Starting with an empty user database.")
+        except PermissionError:
+            st.error("Permission Error: Cannot read users.json. Your environment might restrict file access. For persistent user data, a database is required.")
+        except Exception as e:
+            st.error(f"An unexpected error occurred while loading users: {e}. For persistent user data, a database is required.")
+    return users_data
 
 def save_users(users):
     """Saves user data to the JSON file."""
     try:
         with open(USERS_FILE, "w") as f:
             json.dump(users, f, indent=2)
+    except PermissionError:
+        st.error("Permission Error: Cannot write to users.json. Your environment might restrict file access. For persistent user data, a database is required.")
     except Exception as e:
-        st.error(f"An unexpected error occurred while saving users: {e}")
-
+        st.error(f"An unexpected error occurred while saving users: {e}. For persistent user data, a database is required.")
 
 def register_user(username, email, password, location):
     """Registers a new user."""
@@ -52,7 +52,8 @@ def register_user(username, email, password, location):
         "password": password, # In a real app, hash passwords!
         "location": location
     }
-    save_users(users)
+    save_users(users) # Attempt to save
+    # The success of saving will be indicated by the absence of an error from save_users
     return True, "Registration successful. You can now log in."
 
 def login_user(email, password):
@@ -61,7 +62,6 @@ def login_user(email, password):
     user = users.get(email)
     if user and user["password"] == password: # In a real app, compare hashed hashed passwords!
         return True, user
-    # Modified error message to guide the user
     return False, "Invalid email or password. If you don't have an account, please go to the 'Register' tab to create one."
 
 # --- MarianMT Model for Translation ---