michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0: * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 'use strict';
michael@0: 
michael@0: const { contract } = require('../../util/contract');
michael@0: const { isLocalURL } = require('../../url');
michael@0: const { isNil, isObject, isString } = require('../../lang/type');
michael@0: const { required, either, string, boolean, object } = require('../../deprecated/api-utils');
michael@0: const { merge } = require('../../util/object');
michael@0: const { freeze } = Object;
michael@0: 
michael@0: function isIconSet(icons) {
michael@0:   return Object.keys(icons).
michael@0:     every(size => String(size >>> 0) === size && isLocalURL(icons[size]))
michael@0: }
michael@0: 
michael@0: let iconSet = {
michael@0:   is: either(object, string),
michael@0:   map: v => isObject(v) ? freeze(merge({}, v)) : v,
michael@0:   ok: v => (isString(v) && isLocalURL(v)) || (isObject(v) && isIconSet(v)),
michael@0:   msg: 'The option "icon" must be a local URL or an object with ' +
michael@0:     'numeric keys / local URL values pair.'
michael@0: }
michael@0: 
michael@0: let id = {
michael@0:   is: string,
michael@0:   ok: v => /^[a-z-_][a-z0-9-_]*$/i.test(v),
michael@0:   msg: 'The option "id" must be a valid alphanumeric id (hyphens and ' +
michael@0:         'underscores are allowed).'
michael@0: };
michael@0: 
michael@0: let label = {
michael@0:   is: string,
michael@0:   ok: v => isNil(v) || v.trim().length > 0,
michael@0:   msg: 'The option "label" must be a non empty string'
michael@0: }
michael@0: 
michael@0: let stateContract = contract({
michael@0:   label: label,
michael@0:   icon: iconSet,
michael@0:   disabled: boolean
michael@0: });
michael@0: 
michael@0: exports.stateContract = stateContract;
michael@0: 
michael@0: let buttonContract = contract(merge({}, stateContract.rules, {
michael@0:   id: required(id),
michael@0:   label: required(label),
michael@0:   icon: required(iconSet)
michael@0: }));
michael@0: 
michael@0: exports.buttonContract = buttonContract;
michael@0: 
michael@0: exports.toggleStateContract = contract(merge({
michael@0:   checked: boolean
michael@0: }, stateContract.rules));
michael@0: 
michael@0: exports.toggleButtonContract = contract(merge({
michael@0:   checked: boolean
michael@0: }, buttonContract.rules));
michael@0: