{ pkgs, lib, config, ... }:
with (import ./names-and-numbers.nix);
let
  inherit (config.users) users;
in
{
networking.nftables.ruleset = ''
  table inet filter {
    chain input {
      iifname ${lteIface} jump input-net
      iifname ${lteIface} log level warn prefix "input-net: " counter drop
    }
    chain output-net {
      ip daddr 10.151.0.1 tcp dport 8080 counter accept \
        comment "mmsd: Prixtel/SFR"
    }
    chain output {
      oifname ${lteIface} jump output-net
      oifname ${lteIface} log level warn prefix "output-net: " counter drop
    }
    chain forward-to-net {
    }
    chain forward-from-net {
    }
    chain forward-to-net { }
    chain forward-from-net { }
    chain forward {
      iifname { ${wifiIface}, ${eth1Iface}, ${eth2Iface}, ${eth3Iface} } oifname ${lteIface} goto forward-to-net
      iifname ${lteIface} oifname { ${wifiIface}, ${eth1Iface}, ${eth2Iface}, ${eth3Iface} } goto forward-from-net
    }
  }
  table inet nat {
    chain postrouting {
      iifname { ${wifiIface}, ${eth1Iface}, ${eth2Iface}, ${eth3Iface} } oifname ${lteIface} masquerade
    }
  }
'';
services.mmsd.enable = true;
services.mmsd.extraArgs = ["--debug"];
systemd.services.NetworkManager.wants = [ "ModemManager.service" ];
services.dbus.packages = [ pkgs.dconf ];
programs.dconf.enable = true;
environment.etc."NetworkManager/system-connections/Prixtel.nmconnection" = {
  mode = "600";
  text = ''
    [connection]
    id=Prixtel
    uuid=b223f550-dff1-4ba3-9755-cd4557faaa5a
    type=gsm
    autoconnect=true
    permissions=user:${users.julm.name}:;

    [gsm]
    apn=sl2sfr
    number=*99#
    #home-only=true

    [ppp]

    [ipv4]
    method=auto
    dhcp-send-hostname=false

    [ipv6]
    method=auto
    addr-gen-mode=stable-privacy
    ip6-privacy=2
    dhcp-send-hostname=false

    [proxy]
  '';
};
environment.systemPackages = [
  pkgs.modem-manager-gui
  pkgs.libmbim
  pkgs.chatty
  pkgs.gnome.gnome-contacts
  pkgs.mmsd-tng
  pkgs.picocom
  pkgs.calls
  pkgs.dfeet
  # https://gitlab.com/mobian1/callaudiod/-/issues/26
  # https://gitlab.com/mobian1/callaudiod/-/issues/27
  pkgs.callaudiod
];
}