60 lines
2.0 KiB
JavaScript
60 lines
2.0 KiB
JavaScript
import includes from 'lodash-es/includes';
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import isArray from 'lodash-es/isArray';
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import isFunction from 'lodash-es/isFunction';
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import map from 'lodash-es/map';
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import reduce from 'lodash-es/reduce';
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import trim from 'lodash-es/trim';
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/**
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* Returns an Array of visibility values.
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* e.g. public,all => ['public, 'all']
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* @param visibility
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* @returns {*}
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*/
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export const parse = (visibility) => {
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if (!visibility) {
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return ['public'];
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}
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return map(visibility.split(','), trim);
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};
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/**
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* Filter resources by visibility.
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*
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* All resources that have a visibility property, can use this static helper function.
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*
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*
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* @param {Array|Object} items - the items to filter
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* @param {Array|String} visibility - the visibility setting to filter on (default: 'public')
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* @param {Function} [fn] - function to apply to each item before returning
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* @returns {Array|Object} filtered items
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*/
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export const filter = (items, visibility, fn) => {
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if (isFunction(visibility)) {
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fn = visibility;
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visibility = null;
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}
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const memo = isArray(items) ? [] : {};
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const visArray = isArray(visibility) ? visibility : parse(visibility);
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// Fallback behaviour for items that don't have visibility set on them
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const defaultVisibility = 'public';
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const returnByDefault = includes(visArray, defaultVisibility);
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// We don't want to change the structure of what is returned
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return reduce(items, function (accumulator, item, key) {
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// If the item has visibility, check to see if it matches, else if there's no visibility check for a match with the default visibility
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if (includes(visArray, 'all') || item.visibility && includes(visArray, item.visibility) || !item.visibility && returnByDefault) {
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const newItem = fn ? fn(item) : item;
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if (isArray(items)) {
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accumulator.push(newItem);
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} else {
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accumulator[key] = newItem;
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}
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}
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return accumulator;
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}, memo);
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};
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