{ config, lib, pkgs, ... }:

{
  networking.hostName = "mqtt-ingest";

  services.gebos.hivemq = {
    enable = true;
    # Persistent sessions on disk — single-node, devices reconnect on restart.
    persistentSessions = true;
    tlsPort = 8883;
  };

  services.gebos.ingester = {
    enable = true;
    mqttBroker = "tcp://127.0.0.1:1883";   # local broker
    postgresUrl = "postgres://gebos_ingest@db-host.gebos.internal:5432/postgres?sslmode=require";
    # Password sourced from /etc/gebos/secrets.env via EnvironmentFile.
  };

  # Caddy fronts TLS for `ingest.ge-bos.de` and forwards to HiveMQ.
  services.gebos.caddy = {
    enable = true;
    sites = {
      "ingest.ge-bos.de" = { tcpProxy = "127.0.0.1:8883"; };
    };
  };

  networking.firewall.allowedTCPPorts = [ 8883 ];
}