Function isOptional

packages/component-sdk/src/json-schema.ts:189–212

* Check if schema is optional

(schema: z.ZodTypeAny)

 * Check if schema is optional
 */
function isOptional(schema: z.ZodTypeAny): boolean {
  let current = schema;

  while (true) {
    const def = (current as any)._def as ZodDef | undefined;

    if (!def) break;

    const typeName = getDefType(def);

    if (typeName === 'optional') {
      return true;
    }

    if (typeName === 'default' || typeName === 'nullable') {
      current = def.innerType;
      continue;
    }

    break;
  }

  return false;
}