{ config, lib, pkgs, ... }:
{
  imports = [ ./dsl.nix ];

  config = {
    networking = {
      hostName = "vidhar";
      domain = "yggdrasil";
      search = [ "yggdrasil" ];

      useDHCP = false;
      useNetworkd = true;

      interfaces."lan" = {
        ipv4.addresses = [
          { address = "10.141.0.1"; prefixLength = 24; }
        ];
      };
      interfaces."mgmt" = {
        ipv4.addresses = [
          { address = "10.141.1.1"; prefixLength = 24; }
        ];
      };
      interfaces."wifibh" = {
        ipv4.addresses = [
          { address = "10.141.2.1"; prefixLength = 24; }
        ];
      };

      vlans = {
        mgmt = {
          id = 2;
          interface = "eno2";
        };
        "eno2.lan" = {
          id = 3;
          interface = "eno2";
        };
        wifibh = {
          id = 4;
          interface = "eno2";
        };
      };

      firewall.enable = false;
      nftables = {
        enable = true;
        rulesetFile = ./ruleset.nft;
      };
    };

    services.resolved = {
      llmnr = "false";
    };

    services.dhcpd4 = {
      enable = true;
      interfaces = [ "lan" "mgmt" ];
      extraConfig = ''
        subnet 10.141.0.0 netmask 255.255.255.0 {
          range 10.141.0.128 10.141.0.254;
          option domain-name-servers 10.141.0.1;
          option broadcast-address 10.141.0.255;
          option routers 10.141.0.1;
          option domain-name "yggdrasil";
        }

        subnet 10.141.1.0 netmask 255.255.255.0 {
          range 10.141.1.128 10.141.1.254;
          option domain-name-servers 10.141.1.1;
          option broadcast-address 10.141.1.255;
        }
      '';
      machines = [
        {
          ethernetAddress = "50:d4:f7:f3:0f:7e";
          hostName = "gauss-ap01";
          ipAddress = "10.141.0.64";
        }
        {
          ethernetAddress = "60:a4:b7:53:94:b5";
          hostName = "switch01";
          ipAddress = "10.141.1.2";
        }
        {
          ethernetAddress = "74:ac:b9:29:ad:9a";
          hostName = "ap01";
          ipAddress = "10.141.1.4";
        }
      ];
    };
    systemd.network = {
      netdevs = {
        "wifibh01" = {
          netdevConfig = {
            Name = "wifibh01";
            Kind = "gretap";
          };
          tunnelConfig = {
            Local = "10.141.2.1";
            Remote = "10.141.2.2";
          };
        };
        "wifibh01.lan" = {
          netdevConfig = {
            Name = "wifibh01.lan";
            Kind = "vlan";
          };
          vlanConfig = {
            Id = 2;
          };
        };
        lan = {
          netdevConfig = {
            Name = "lan";
            Kind = "bridge";
          };
        };
      };

      networks = {
        "eno1" = {
          matchConfig.Name = "eno1";
          linkConfig = {
            ActivationPolicy = "down";
          };
        };
        "eno2" = {
          matchConfig.Name = "eno2";
          networkConfig.LinkLocalAddressing = "no";
        };
        "wifibh01.lan" = {
          matchConfig.Name = "wifibh01.lan";
          networkConfig.Bridge = "lan";
          extraConfig = ''
            [Bridge]
            HairPin = true
            Cost = 10
          '';
        };
        "40-eno2.lan" = {
          matchConfig.Name = "eno2.lan";
          networkConfig.Bridge = "lan";
          extraConfig = ''
            [Bridge]
            HairPin = false
            Cost = 1
          '';
        };
      };
    };
  };
}