B2B-88: add starter kit structure and elements

supabase copy/schemas/16-storage.sql

@@ -0,0 +1,50 @@
+/*
+ * -------------------------------------------------------
+ * Section: Storage
+ * We create the schema for the storage
+ * -------------------------------------------------------
+ */
+
+-- Account Image
+insert into
+  storage.buckets (id, name, PUBLIC)
+values
+  ('account_image', 'account_image', true);
+
+-- Function: get the storage filename as a UUID.
+-- Useful if you want to name files with UUIDs related to an account
+create
+or replace function kit.get_storage_filename_as_uuid (name text) returns uuid
+set
+  search_path = '' as $$
+begin
+    return replace(storage.filename(name), concat('.',
+	storage.extension(name)), '')::uuid;
+
+end;
+
+$$ language plpgsql;
+
+grant
+execute on function kit.get_storage_filename_as_uuid (text) to authenticated,
+service_role;
+
+-- RLS policies for storage bucket account_image
+create policy account_image on storage.objects for all using (
+  bucket_id = 'account_image'
+  and (
+    kit.get_storage_filename_as_uuid(name) = auth.uid()
+    or public.has_role_on_account(kit.get_storage_filename_as_uuid(name))
+  )
+)
+with check (
+  bucket_id = 'account_image'
+  and (
+    kit.get_storage_filename_as_uuid(name) = auth.uid()
+    or public.has_permission(
+      auth.uid(),
+      kit.get_storage_filename_as_uuid(name),
+      'settings.manage'
+    )
+  )
+);