# TP-Link Omada SDN controller for sites with Omada APs/switches. There is no
# nixpkgs package, so it runs as a podman container (mbentley/omada-controller,
# the de-facto standard image). Host networking because device adoption relies
# on L2 broadcast discovery (UDP 29810) on the mgmt VLAN; the default-deny
# input firewall keeps its ports unreachable from WAN and non-mgmt VLANs.
{
  config,
  lib,
  ...
}:
let
  cfg = config.cnx.router;
  mesh = import ../mesh-hosts.nix { inherit config lib; };
in
{
  options.cnx.router.omada.enable =
    lib.mkEnableOption "TP-Link Omada SDN controller (podman container)";

  config = lib.mkIf (cfg.enable && cfg.omada.enable) {
    virtualisation.podman.enable = true;
    virtualisation.oci-containers = {
      backend = "podman";
      containers.omada = {
        image = "docker.io/mbentley/omada-controller:5.15";
        extraOptions = [ "--network=host" ];
        environment.TZ = config.time.timeZone;
        volumes = [
          "/var/lib/omada/data:/opt/tplink/EAPController/data"
          "/var/lib/omada/logs:/opt/tplink/EAPController/logs"
        ];
      };
    };

    # Admin UI (8043) also reachable over the mesh, like Grafana on control.
    networking.firewall.extraInputRules = ''
      ip6 saddr ${mesh.subnet} tcp dport 8043 accept comment "omada ui over the mesh"
    '';

    # Controller state (adopted devices, site config, cert) — declared as clan
    # state so a borgbackup client can pick it up; backup wiring is a later step.
    clan.core.state.omada.folders = [ "/var/lib/omada" ];
  };
}