88 lines
2.1 KiB
JavaScript
88 lines
2.1 KiB
JavaScript
import Instance from './Instance.js';
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import Serializable from './Serializable.js';
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import _ from 'lodash';
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import Module from './Module.js';
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import debug from 'debug';
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const log = debug('vogue:system')
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const {get, set} = _;
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export default class System extends Serializable {
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instances = [];
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modules = null;
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namespace = null;
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staticInstances = {};
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constructor(modules, rootDir) {
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super();
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this.modules = modules;
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this.createNamespace();
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const bootModules = this.deriveBootModules();
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this.createStaticInstances();
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this.rootDir = rootDir;
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log('instantiating boot modules...');
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for(const name of bootModules) {
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log(' ' + name);
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this.newInstance(name);
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}
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}
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createStaticInstances() {
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log('deriving static modules...');
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const staticModules = this.modules.filter((module) => {
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return !!module.static;
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}).map((module) => {
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log(' ' + module.name.full);
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return module;
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});
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log('instantiating static modules...');
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for(const module of staticModules) {
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log(' ' + module.static + ': ' + module.name.full);
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this.staticInstances[module.static] =
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this.newInstance(module.name.full, {});
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}
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}
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deriveBootModules() {
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log('deriving boot modules...');
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const bootModules = this.modules.filter((module) => {
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return module.singleton;
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}).map((module) => {
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return module.name.full;
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});
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for(const name of bootModules)
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log(' ' + name);
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return bootModules;
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}
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createNamespace() {
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log('creating namespace map...');
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this.namespace = this.modules.reduce((acc, val) => {
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if(get(acc, val.name.full) instanceof Module)
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throw new Error('Duplicate module "' + val.name.full + '"');
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set(acc, val.name.full, val);
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log(' ' + val.name.full);
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return acc;
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}, {});
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}
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getModule(name) {
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return get(this.namespace, name);
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}
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createInstance(name, args = {}) {
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return new Instance(this.getModule(name), null, args, this);
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}
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newInstance(name, args = {}) {
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const instance = this.createInstance(name, args);
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const link = instance.link;
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if(instance.hasPublicFunction('restore'))
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instance.invokeInternal('restore');
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return link;
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}
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} |