86 lines
1.9 KiB
JavaScript
86 lines
1.9 KiB
JavaScript
/* jslint node: true */
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'use strict';
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var fs = require('fs');
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var paths = require('path');
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var conf = require('./config.js');
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var miscUtil = require('./misc_util.js');
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var logger = require('./logger.js');
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// exports
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exports.loadModule = loadModule;
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exports.loadModulesForCategory = loadModulesForCategory;
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exports.goto = goto;
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function loadModule(name, category, cb) {
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var config = conf.config;
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var path = config.paths[category];
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if(!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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// update conf to point at this module's section, if any
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config = config[category] ? config[category][name] : null;
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if(config && false === config.enabled) {
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cb(new Error('module "' + name + '" is disabled'));
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return;
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}
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try {
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var mod = require(paths.join(path, name + '.js'));
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if(!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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mod.runtime = {
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config : config
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};
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cb(null, mod);
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} catch(e) {
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cb(e);
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}
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};
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function loadModulesForCategory(category, cb) {
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var path = conf.config.paths[category];
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fs.readdir(path, function onFiles(err, files) {
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if(err) {
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cb(err);
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return;
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}
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var filtered = files.filter(function onFilter(file) { return '.js' === paths.extname(file); });
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filtered.forEach(function onFile(file) {
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var modName = paths.basename(file, '.js');
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loadModule(paths.basename(file, '.js'), category, cb);
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});
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});
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};
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function goto(name, client, cb) {
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// Assign a default missing module handler callback if none was provided
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cb = miscUtil.valueWithDefault(cb, client.defaultHandlerMissingMod());
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loadModule(name, 'mods', function onMod(err, mod) {
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if(err) {
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cb(err);
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} else {
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try {
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logger.log.debug({ moduleName : name }, 'Goto module');
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mod.entryPoint(client);
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} catch (e) {
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cb(e);
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}
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}
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});
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};
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