Update config.py

config.py

@@ -1,26 +1,39 @@
-# filename: config.py
+# filename: config.py (Corrected Version)
 
 import os
 import re
 from dotenv import load_dotenv
 
 # Load environment variables from a .env file for local development
-# In production (like Docker/Hugging Face), these will be set directly.
 load_dotenv()
 
-# --- Helper function to cast environment variables ---
+# --- Helper function to cast environment variables (CORRECTED) ---
 def get_env(key, default=None, cast_to=str):
-    """Fetches an environment variable and casts it to a specified type."""
+    """
+    Fetches an environment variable, casts it to a specified type,
+    and correctly handles non-string default values.
+    """
     value = os.getenv(key, default)
-    if value is not None:
-        try:
-            # Handle boolean strings explicitly
-            if cast_to == bool:
-                return value.lower() in ('true', '1', 't', 'y', 'yes')
-            return cast_to(value)
-        except (ValueError, TypeError):
-            return default
-    return default
+    
+    # If no value is found at all, return None
+    if value is None:
+        return None
+        
+    # --- The Fix ---
+    # If the retrieved value is already the type we want (e.g., default=True was used),
+    # return it directly without trying to process it as a string.
+    if isinstance(value, cast_to):
+        return value
+
+    # If we have a string from the environment, process it.
+    if cast_to == bool:
+        return value.lower() in ('true', '1', 't', 'y', 'yes')
+    
+    try:
+        return cast_to(value)
+    except (ValueError, TypeError):
+        return default
+
 
 # --- Telegram Credentials (Mandatory) ---
 API_ID = get_env("API_ID", cast_to=int)
@@ -29,17 +42,15 @@ BOT_TOKEN = get_env("BOT_TOKEN")
 OWNER_ID = get_env("OWNER_ID", cast_to=int)
 
 if not all([API_ID, API_HASH, BOT_TOKEN, OWNER_ID]):
-    raise ValueError("Error: One or more mandatory Telegram credentials are not set in the environment.")
+    raise ValueError("Error: One or more mandatory Telegram credentials are not set.")
 
 # --- Database Configuration (Mandatory) ---
-# This logic automatically finds all MONGODB_URL_n secrets you've set.
 mongo_vars = {}
 for key, value in os.environ.items():
     if match := re.match(r"MONGODB_URL_(\d+)", key):
         if value:
             mongo_vars[int(match.group(1))] = value
 
-# Sort the found URLs by their number (1, 2, 3...) to create the final list
 MONGODB_URIS = [mongo_vars[key] for key in sorted(mongo_vars.keys())]
 
 if not MONGODB_URIS:
@@ -61,5 +72,6 @@ FREE_WORKERS = get_env("FREE_WORKERS", 1, cast_to=int)
 _free_limit_mb = get_env("FREE_USER_FILE_SIZE_LIMIT", 50, cast_to=int)
 FREE_USER_FILE_SIZE_LIMIT_BYTES = _free_limit_mb * 1024 * 1024
 
-# Toggle for enabling FFMPEG features like thumbnailing and remuxing
+# This line now works correctly with the fixed helper function.
 ENABLE_FFMPEG = get_env("ENABLE_FFMPEG", True, cast_to=bool)
+