import { createLogger, toErrorMeta } from "./shared/logging/logger";

export function registerNodeInstrumentation() {
  const logger = createLogger("web");
  const heartbeatIntervalMs = 5 * 60 * 1000;

  logger.info("web server starting", { pid: process.pid });

  process.on("uncaughtException", (error) => {
    logger.error("uncaught exception, exiting", toErrorMeta(error));
    process.exit(1);
  });

  process.on("unhandledRejection", (reason) => {
    logger.error("unhandled rejection, exiting", toErrorMeta(reason));
    process.exit(1);
  });

  setInterval(() => {
    const memory = process.memoryUsage();
    logger.verbose("heartbeat", {
      uptimeSeconds: Math.round(process.uptime()),
      rssMb: Math.round(memory.rss / 1024 / 1024),
      heapUsedMb: Math.round(memory.heapUsed / 1024 / 1024),
    });
  }, heartbeatIntervalMs).unref();
}