open-consul/ui/packages/consul-ui/app/helpers/require.js

40 lines
1.0 KiB
JavaScript

import { helper } from '@ember/component/helper';
import require from 'require';
import { css } from '@lit/reactive-element';
import resolve from 'consul-ui/utils/path/resolve';
const appName = 'consul-ui';
const container = new Map();
// `css` already has a caching mechanism under the hood so rely on that, plus
// we get the advantage of laziness here, i.e. we only call css as and when we
// need to
export default helper(([path = ''], { from }) => {
const fullPath = resolve(`${appName}${from}`, path);
let module;
if(require.has(fullPath)) {
module = require(fullPath).default;
} else {
throw new Error(`Unable to resolve '${fullPath}' does the file exist?`)
}
switch(true) {
case fullPath.endsWith('.css'):
return module(css);
case fullPath.endsWith('.xstate'):
return module;
default: {
if(container.has(fullPath)) {
return container.get(fullPath);
}
const component = module(HTMLElement);
container.set(fullPath, component);
return component;
}
}
});