DROP POLICY IF EXISTS "Avatars are readable by authenticated" ON storage.objects;
CREATE POLICY "Avatars are readable by authenticated" ON storage.objects
  FOR SELECT TO authenticated USING (bucket_id = 'avatars');

DROP POLICY IF EXISTS "Users upload own avatar" ON storage.objects;
CREATE POLICY "Users upload own avatar" ON storage.objects
  FOR INSERT TO authenticated WITH CHECK (
    bucket_id = 'avatars' AND (storage.foldername(name))[1] = auth.uid()::text
  );

DROP POLICY IF EXISTS "Users update own avatar" ON storage.objects;
CREATE POLICY "Users update own avatar" ON storage.objects
  FOR UPDATE TO authenticated USING (
    bucket_id = 'avatars' AND (storage.foldername(name))[1] = auth.uid()::text
  );

DROP POLICY IF EXISTS "Users delete own avatar" ON storage.objects;
CREATE POLICY "Users delete own avatar" ON storage.objects
  FOR DELETE TO authenticated USING (
    bucket_id = 'avatars' AND (storage.foldername(name))[1] = auth.uid()::text
  );