import fs from 'node:fs';
import http from 'node:http';

import * as yaml from 'js-yaml';

const LOCALE = 'en';

const yamlFiles = fs.globSync(`${import.meta.dirname}/data/**/*.yaml`);
const yamlContents = yamlFiles.map(yamlFile => fs.readFileSync(yamlFile, 'utf8'));
const workstations = yamlContents.map(yamlContent => yaml.load(yamlContent));

workstations.sort(compareWorkstations);

const workstationsJSON = JSON.stringify(workstations);
const server = http.createServer(onRequest);

process.on('SIGINT', shutdown);
process.on('SIGTERM', shutdown);

server.listen(50000);

function compareWorkstations(first, second) {
    const osComparison = first.os.localeCompare(second.os, LOCALE);
    const versionComparison = second.version.localeCompare(first.version, LOCALE, { numeric: true });

    return osComparison || versionComparison;
}

function onRequest(_request, response) {
    response.setHeader('Content-Type', 'application/json');
    response.end(workstationsJSON);
}

function shutdown() {
    process.off('SIGINT', shutdown);
    process.off('SIGTERM', shutdown);

    server.close();
}