/**
 * Web Worker running the network layout off the page's main thread.
 *
 * In production Vite bundles it into one self-contained classic worker, which
 * older iOS versions also run; under the dev server it runs as a module worker
 * instead, since the dev server serves it unbundled (see getLayoutWorker() in
 * stats-network.js). The work itself lives in network-layout-core.js.
 */
import cytoscape from 'cytoscape';
import fcose from 'cytoscape-fcose';
import { layoutPositions } from './network-layout-core';

cytoscape.use(fcose);

self.onmessage = (event) => {
    const { id, nodes, edges, options } = event.data || {};

    layoutPositions(cytoscape, { nodes, edges, options })
        .then((positions) => self.postMessage({ id, positions }))
        .catch((error) => self.postMessage({ id, error: String((error && error.message) || error) }));
};