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