91 lines
2.0 KiB
JavaScript
91 lines
2.0 KiB
JavaScript
/* jslint node: true */
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'use strict';
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// ENiGMA½
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let Config = require('./config.js').config;
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let miscUtil = require('./misc_util.js');
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// standard/deps
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let fs = require('fs');
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let paths = require('path');
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let _ = require('lodash');
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let assert = require('assert');
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let async = require('async');
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// exports
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exports.loadModuleEx = loadModuleEx;
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exports.loadModule = loadModule;
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exports.loadModulesForCategory = loadModulesForCategory;
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function loadModuleEx(options, cb) {
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assert(_.isObject(options));
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assert(_.isString(options.name));
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assert(_.isString(options.path));
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const modConfig = _.isObject(Config[options.category]) ? Config[options.category][options.name] : null;
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if(_.isObject(modConfig) && false === modConfig.enabled) {
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cb(new Error('Module "' + options.name + '" is disabled'));
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return;
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}
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var mod;
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try {
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mod = require(paths.join(options.path, options.name + '.js'));
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} catch(e) {
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cb(e);
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}
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if(!_.isObject(mod.moduleInfo)) {
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cb(new Error('Module is missing "moduleInfo" section'));
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return;
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}
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if(!_.isFunction(mod.getModule)) {
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cb(new Error('Invalid or missing "getModule" method for module!'));
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return;
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}
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// Ref configuration, if any, for convience to the module
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mod.runtime = { config : modConfig };
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cb(null, mod);
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}
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function loadModule(name, category, cb) {
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var path = Config.paths[category];
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if(!_.isString(path)) {
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cb(new Error('Not sure where to look for "' + name + '" of category "' + category + '"'));
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return;
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}
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loadModuleEx( { name : name, path : path, category : category }, function loaded(err, mod) {
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cb(err, mod);
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});
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}
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function loadModulesForCategory(category, iterator, complete) {
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fs.readdir(Config.paths[category], (err, files) => {
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if(err) {
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return iterator(err);
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}
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const jsModules = files.filter(file => {
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return '.js' === paths.extname(file);
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});
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async.each(jsModules, (file, next) => {
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loadModule(paths.basename(file, '.js'), category, (err, mod) => {
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iterator(err, mod);
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next();
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});
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}, err => {
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if(complete) {
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complete(err);
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}
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});
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});
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}
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