import http from "node:http";

const port = Number(process.env.FIXTURE_PORT ?? 3101);
const start = new Date(Date.now() + 7 * 24 * 60 * 60 * 1_000);
const end = new Date(start.getTime() + 2 * 60 * 60 * 1_000);

function icsDate(date) {
  return date.toISOString().replace(/[-:]/g, "").replace(/\.\d{3}Z$/, "Z");
}

const calendar = `BEGIN:VCALENDAR\r
VERSION:2.0\r
PRODID:-//Website Starter E2E//DE\r
BEGIN:VEVENT\r
UID:e2e-special-event\r
SUMMARY:E2E Beispieltermin\r
LOCATION:Beispielort\r
DTSTART:${icsDate(start)}\r
DTEND:${icsDate(end)}\r
END:VEVENT\r
END:VCALENDAR\r
`;

const server = http.createServer((_request, response) => {
  response.writeHead(200, { "content-type": "text/calendar; charset=utf-8" });
  response.end(calendar);
});

server.listen(port, "127.0.0.1", () => {
  console.log(`ICS fixture listening on http://127.0.0.1:${port}`);
});

for (const signal of ["SIGINT", "SIGTERM"]) {
  process.on(signal, () => server.close(() => process.exit(0)));
}