atomic-design-poc/plop-templates/value-object.hbs

import { Brand, Result, ok, err } from '@shared/kernel/fp';

/**
 * Value object: {{pascalCase name}}. "Parse, don't validate" — a {{pascalCase name}} is a
 * distinct type from a raw string, mintable only via parse{{pascalCase name}}, so holding one
 * is proof it is well-formed. Format-only check; the backend re-validates (ADR-0001).
 */
export type {{pascalCase name}} = Brand<string, '{{pascalCase name}}'>;

export function parse{{pascalCase name}}(raw: string): Result<string, {{pascalCase name}}> {
  const t = raw.trim();
  // TODO: replace with the real format rule for {{pascalCase name}}.
  if (t.length === 0) {
    return err($localize`:@@validation.{{camelCase name}}:Voer een geldige waarde in.`);
  }
  return ok(t as {{pascalCase name}});
}