'use strict';const{contract}=require('../../util/contract');const{isValidURI,URL,isLocalURL}=require('../../url');const{isNil,isObject,isString}=require('../../lang/type');exports.contract=contract({id:{is:['string','undefined'],ok:v=>/^[a-z0-9-_]+$/i.test(v),msg:'The option "id" must be a valid alphanumeric id (hyphens and '+'underscores are allowed).'},title:{is:['string'],ok:v=>v.length},url:{is:['string'],ok:v=>isLocalURL(v),map:function(v)v.toString(),msg:'The option "url" must be a valid local URI.'}});