'use strict';
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/**
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* Plugins engine.
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*
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* @module plugins
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*
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* @param {Object} data input data
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* @param {Object} info extra information
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* @param {Object} plugins plugins object from config
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* @return {Object} output data
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*/
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module.exports = function(data, info, plugins) {
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plugins.forEach(function(group) {
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switch(group[0].type) {
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case 'perItem':
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data = perItem(data, info, group);
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break;
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case 'perItemReverse':
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data = perItem(data, info, group, true);
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break;
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case 'full':
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data = full(data, info, group);
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break;
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}
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});
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return data;
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};
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/**
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* Direct or reverse per-item loop.
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*
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* @param {Object} data input data
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* @param {Object} info extra information
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* @param {Array} plugins plugins list to process
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* @param {Boolean} [reverse] reverse pass?
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* @return {Object} output data
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*/
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function perItem(data, info, plugins, reverse) {
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function monkeys(items) {
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items.content = items.content.filter(function(item) {
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// reverse pass
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if (reverse && item.content) {
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monkeys(item);
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}
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// main filter
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var filter = true;
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for (var i = 0; filter && i < plugins.length; i++) {
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var plugin = plugins[i];
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if (plugin.active && plugin.fn(item, plugin.params, info) === false) {
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filter = false;
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}
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}
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// direct pass
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if (!reverse && item.content) {
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monkeys(item);
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}
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return filter;
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});
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return items;
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}
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return monkeys(data);
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}
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/**
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* "Full" plugins.
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*
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* @param {Object} data input data
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* @param {Object} info extra information
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* @param {Array} plugins plugins list to process
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* @return {Object} output data
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*/
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function full(data, info, plugins) {
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plugins.forEach(function(plugin) {
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if (plugin.active) {
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data = plugin.fn(data, plugin.params, info);
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}
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});
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return data;
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}
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