feat: add function to retrieve unique import settings for multiple arr IDs

backend/app/db.py

@@ -156,3 +156,34 @@ def save_settings(settings_dict):
                     updated_at = CURRENT_TIMESTAMP
                 ''', (key, value))
         conn.commit()
+
+
+def get_unique_arrs(arr_ids):
+    """
+    Get import_as_unique settings for a list of arr IDs.
+    
+    Args:
+        arr_ids (list): List of arr configuration IDs
+        
+    Returns:
+        dict: Dictionary mapping arr IDs to their import_as_unique settings and names
+    """
+    if not arr_ids:
+        return {}
+
+    with get_db() as conn:
+        placeholders = ','.join('?' * len(arr_ids))
+        query = f'''
+            SELECT id, name, import_as_unique 
+            FROM arr_config 
+            WHERE id IN ({placeholders})
+        '''
+
+        results = conn.execute(query, arr_ids).fetchall()
+        return {
+            row['id']: {
+                'import_as_unique': bool(row['import_as_unique']),
+                'name': row['name']
+            }
+            for row in results
+        }