{ config, flakeRoot, ... }:
let
  secrets = config.sops.secrets;
in
{
  imports = [ (flakeRoot + /wireguard.nix) ];

  sops = {
    age.keyFile = "/var/lib/sops-nix/key.txt";
    secrets."wireless.env" = {
      sopsFile = ../../secrets/wireless.env;
      owner = "wpa_supplicant";
      group = "wpa_supplicant";
      format = "dotenv";
    };
  };

  networking = {
    hostName = "nyaan";
    useNetworkd = true;
    firewall.enable = false;
    nftables = {
      enable = true;
      tables.filter = {
        enable = true;
        family = "inet";
        content = ''
          	set temp-ports {
              type inet_proto . inet_service
              flags interval
              comment "Temporarily opened ports"
            }

          	chain rpfilter {
              type filter hook prerouting priority mangle + 10; policy drop;
              meta nfproto ipv4 udp sport . udp dport { 68 . 67, 67 . 68 } accept comment "DHCPv4 client/server"
              fib saddr . mark . iif check exists accept
              jump rpfilter-allow
            }

            chain rpfilter-allow {
            }

            chain prerouting {
              type filter hook prerouting priority mangle;
              iifname "wg0" meta mark set 42
            }

            chain input {
              type filter hook input priority filter; policy drop;
              iifname "lo" accept comment "trusted interfaces"
              icmpv6 type echo-reply accept
              ct state vmap { invalid : drop, established : accept, related : accept, new : jump input-allow, untracked : jump input-allow }
            }

            chain input-allow {
              # tcp dport { 22, 80, 443 } accept
              udp dport 51820 accept
              meta l4proto . th dport @temp-ports accept
              icmp type echo-request accept comment "allow ping"
              icmpv6 type != { nd-redirect, 139 } accept comment "Accept all ICMPv6 messages except redirects and node information queries (type 139).  See RFC 4890, section 4.4."
              ip6 daddr fe80::/64 udp dport 546 accept comment "DHCPv6 client"
            }
        '';
      };
    };
    wireless = {
      enable = true;
      secretsFile = secrets."wireless.env".path;
      userControlled = true;
      networks = {
        "KopsiNet-5".pskRaw = "ext:kopsinet_psk";
        "Pixel_3139" = {
          pskRaw = "ext:phone_hotspot_psk";
          hidden = true;
        };
        "eduroam" = {
          authProtocols = [ "WPA-EAP" ];
          auth = ''
            pairwise=CCMP TKIP
            eap=TTLS PEAP TLS
            group=CCMP TKIP
            identity="mbastaja@tvz.hr"
            altsubject_match="DNS:freeradius.tvz.hr"
            phase1="peaplabel=0"
            phase2="auth=PAP"
            password="ext:eduroam_pass"
            anonymous_identity="anonymous@tvz.hr"
          '';
        };
        "Students-TVZ" = {
          authProtocols = [ "WPA-EAP" ];
          auth = ''
            pairwise=CCMP TKIP
            eap=PEAP
            group=CCMP TKIP
            identity="mbastaja@tvz.hr"
            phase1="peaplabel=0"
            phase2="auth=MSCHAPV2"
            password="ext:eduroam_pass"
          '';
        };
      };
    };
  };
}