Remove rollback migrations and fix filesystem deletion on user delete

rest-api/db/migrations/20250410150518_filesystem_triggers.sql

@@ -0,0 +1,88 @@
+-- migrate:up
+DROP TRIGGER _cleanup_filesystem_website ON internal.website;
+
+DROP TRIGGER _cleanup_filesystem_article ON internal.article;
+
+DROP FUNCTION internal.cleanup_filesystem;
+
+CREATE FUNCTION internal.cleanup_filesystem ()
+  RETURNS TRIGGER
+  AS $$
+DECLARE
+  _website_id UUID;
+  _website_user_id UUID;
+  _website_slug TEXT;
+  _username TEXT;
+  _base_path CONSTANT TEXT := '/var/www/archtika-websites';
+  _preview_path TEXT;
+  _prod_path TEXT;
+  _article_slug TEXT;
+BEGIN
+  IF TG_TABLE_NAME = 'website' THEN
+    _website_id := OLD.id;
+    _website_user_id = OLD.user_id;
+    _website_slug := OLD.slug;
+  ELSE
+    _website_id := OLD.website_id;
+  END IF;
+  SELECT
+    u.username INTO _username
+  FROM
+    internal.user AS u
+  WHERE
+    u.id = _website_user_id;
+  _preview_path := _base_path || '/previews/' || _website_id;
+  IF TG_TABLE_NAME = 'website' THEN
+    EXECUTE FORMAT('COPY (SELECT 1) TO PROGRAM ''rm -rf %s''', _preview_path);
+    IF _username IS NOT NULL THEN
+      _prod_path := _base_path || '/' || _username || '/' || _website_slug;
+      EXECUTE FORMAT('COPY (SELECT 1) TO PROGRAM ''rm -rf %s''', _prod_path);
+    END IF;
+  ELSIF TG_TABLE_NAME = 'article' THEN
+    SELECT
+      a.slug INTO _article_slug
+    FROM
+      internal.article AS a
+    WHERE
+      a.id = OLD.id;
+    EXECUTE FORMAT('COPY (SELECT 1) TO PROGRAM ''rm -f %s/articles/%s.html''', _preview_path, _article_slug);
+  END IF;
+  RETURN COALESCE(NEW, OLD);
+END;
+$$
+LANGUAGE plpgsql
+SECURITY DEFINER;
+
+CREATE FUNCTION internal.cleanup_user_directory ()
+  RETURNS TRIGGER
+  AS $$
+DECLARE
+  _username TEXT;
+  _base_path CONSTANT TEXT := '/var/www/archtika-websites';
+  _user_path TEXT;
+BEGIN
+  _username := OLD.username;
+  _user_path := _base_path || '/' || _username;
+  EXECUTE FORMAT('COPY (SELECT 1) TO PROGRAM ''rm -rf %s''', _user_path);
+  RETURN OLD;
+END;
+$$
+LANGUAGE plpgsql
+SECURITY DEFINER;
+
+CREATE TRIGGER _cleanup_filesystem_website
+  BEFORE UPDATE OF title OR DELETE ON internal.website
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.cleanup_filesystem ();
+
+CREATE TRIGGER _cleanup_filesystem_article
+  BEFORE UPDATE OF title OR DELETE ON internal.article
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.cleanup_filesystem ();
+
+CREATE TRIGGER _cleanup_user_directory
+  BEFORE DELETE ON internal.user
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.cleanup_user_directory ();
+
+-- migrate:down