{ pkgs, lib, config, hosts, ... }:
let iface = "wlp4s0";
in
{
networking.interfaces.${iface} = {
  ipv4.addresses = [
    { address = "192.168.2.1"; prefixLength = 24; }
  ];
};
boot.kernel.sysctl."net.ipv6.conf.${iface}.addr_gen_mode" = 1;
networking.nftables.ruleset = ''
  # Hook ${iface} into relevant chains
  add rule inet filter input  iifname "${iface}" jump wifi2fw
  add rule inet filter input  iifname "${iface}" log level warn prefix "wifi2fw: " counter drop
  add rule inet filter output oifname "${iface}" jump fw2wifi
  add rule inet filter output oifname "${iface}" log level warn prefix "fw2wifi: " counter drop

  # ${iface} firewalling
  add rule inet filter fw2wifi counter accept
  add rule inet filter forward iifname "${iface}" jump fwd-wifi

  # Allow forwarding to the internet
  add rule inet filter fwd-wifi oifname "enp5s0" counter accept

  # Allow networking services
  add rule inet filter wifi2fw udp dport 53 counter accept comment "DNS"
  add rule inet filter wifi2fw tcp dport 53 counter accept comment "DNS"
  add rule inet filter wifi2fw tcp dport 67 counter accept comment "DHCP"
'';
#boot.kernel.sysctl."net.ipv4.ip_forward" = 1;

services.unbound.extraConfig = ''
  server:
    interface: 192.168.2.1
    access-control: 192.168.2.0/24 allow
    local-zone: "tracking.intl.miui.com" always_refuse
    local-zone: sourcephile.fr typetransparent
    local-data: "bureau1.sourcephile.fr A 192.168.2.1"
'';

networking.wlanInterfaces = {
  ${iface} = {
    device = "phy0";
  };
};

/*
networking.networkmanager.unmanaged = [
  "interface-name:phy0"
  "interface-name:${iface}"
];
*/

services.hostapd = {
  enable = true;
  logLevel = 2;
  interface = iface;
  hwMode = "g";
  ssid = "bureau1";
  wpa = true;
  wpaPassphrase = "bidonpoissonmaisonronron";
  countryCode = "FR";
  extraConfig = ''
  '';
};
services.dhcpd4 = {
  enable = true;
  interfaces = [ iface ];
  extraConfig = ''
    option subnet-mask 255.255.255.0;
    option broadcast-address 192.168.2.255;
    option routers 192.168.2.1;
    option domain-name-servers 192.168.2.1;
    subnet 192.168.2.0 netmask 255.255.255.0 {
      range 192.168.2.100 192.168.2.200;
    }
  '';
};

#networking.firewall.allowedUDPPorts = [ 53 67 ]; # DNS & DHCP
/*
# Sometimes slow connection speeds are attributed to absence of haveged.
services.haveged.enable = true;
*/

/*

systemd.services.wifi-relay = let inherit (pkgs) iptables gnugrep;
in {
  description = "iptables rules for wifi-relay";
  after = [ "dhcpd4.service" ];
  wantedBy = [ "multi-user.target" ];
  script = ''
    ${iptables}/bin/iptables -w -t nat -I POSTROUTING -s 192.168.2.0/24 ! -o wlp4s0 -j MASQUERADE
    ${iptables}/bin/iptables -w -I FORWARD -i wlp4s0 -s 192.168.2.0/24 -j ACCEPT
    ${iptables}/bin/iptables -w -I FORWARD -i wlan-station0 -d 192.168.2.0/24 -j ACCEPT
  '';
};
*/
}