{ config, pkgs, lib, self, ... }:
with lib;
let
  psCfg = config.pub-solar;
  xdg = config.home-manager.users."${psCfg.user.name}".xdg;
in
{
  imports = [
    ./hardware-configuration.nix
  ];

  config = {
    age.secrets.environment-secrets = {
      file = "${self}/secrets/environment-secrets.age";
      mode = "700";
      owner = "teutat3s";
    };

    pub-solar.virtualisation.enable = true;
    pub-solar.audio.mopidy.enable = lib.mkForce false;

    # fix backlight for keyboard and brightness, adjust function key binding,
    # intel_pstate for cpu schedutil, resume offset for swapfile, disable amdgpu driver
    boot.kernelParams = [ "acpi_backlight=video" "hid_apple.fnmode=2" "intel_pstate=passive" "resume_offset=47366144" ];
    boot.loader.efi.canTouchEfiVariables = true;
    boot.resumeDevice = "/dev/mapper/cryptroot";

    boot.binfmt.emulatedSystems = [ "aarch64-linux" ];

    systemd.sleep.extraConfig = ''
      HibernateMode=shutdown
    '';

    hardware = {
      cpu.intel.updateMicrocode = true;
      facetimehd.enable = true;
    };

    services.resolved = {
      enable = true;
      # DNSSEC=false because of random SERVFAIL responses with Greenbaum DNS
      # when using allow-downgrade, see https://github.com/systemd/systemd/issues/10579
      extraConfig = ''
        DNS=5.1.66.255#dot.ffmuc.net 185.150.99.255#dot.ffmuc.net 5.9.164.112#dns3.digitalcourage.de 89.233.43.71#unicast.censurfridns.dk 94.130.110.185#ns1.dnsprivacy.at 145.100.185.15#dnsovertls.sinodun.com 145.100.185.16#dnsovertls1.sinodun.com 185.49.141.37#getdnsapi.net 2001:678:e68:f000::#dot.ffmuc.net 2001:678:ed0:f000::#dot.ffmuc.net 2a01:4f8:251:554::2#dns3.digitalcourage.de 2a01:3a0:53:53::0#unicast.censurfridns.dk 2a01:4f8:c0c:3c03::2#ns1.dnsprivacy.at 2a01:4f8:c0c:3bfc::2#ns2.dnsprivacy.at 2001:610:1:40ba:145:100:185:15#dnsovertls.sinodun.com 2001:610:1:40ba:145:100:185:16#dnsovertls1.sinodun.com 2a04:b900:0:100::38#getdnsapi.net
        FallbackDNS=9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
        Domains=~.
        DNSOverTLS=yes
        DNSSEC=false
      '';
    };
    services.mozillavpn.enable = true;
    networking = import ./networking.nix;

    security.pki.certificateFiles = [ ./consul-agent-ca.pem ];

    services.unbound = import ./unbound.nix;

    # Disable dedicated GPU, use integrated Intel GPU to save battery
    # Set default brightness to 50%
    # https://ubuntuforums.org/showthread.php?t=2409856
    services.cron.systemCronJobs = [
      "@reboot root ${pkgs.util-linux}/bin/rfkill block bluetooth"
      "@reboot root ${pkgs.coreutils}/bin/sleep 10; ${pkgs.coreutils}/bin/echo OFF > /sys/kernel/debug/vgaswitcheroo/switch"
      "@reboot root ${pkgs.coreutils}/bin/sleep 11; ${pkgs.coreutils}/bin/echo 510 > /sys/class/backlight/gmux_backlight/brightness"
    ];

    # Increase console font size for HiDPI display
    console = {
      earlySetup = true;
      font = lib.mkForce "ter-i32b";
      packages = [ pkgs.terminus_font ];
    };

    # Thunderbolt tools
    services.hardware.bolt.enable = true;

    powerManagement = {
      # Use new schedutil govenor
      # https://github.com/NixOS/nixpkgs/pull/42330
      # https://www.kernel.org/doc/html/v5.10/admin-guide/pm/cpufreq.html#schedutil
      cpuFreqGovernor = lib.mkDefault "schedutil";

      # brcmfmac being loaded during hibernation would inhibit a successful resume
      # https://bugzilla.kernel.org/show_bug.cgi?id=101681#c116.
      # Also brcmfmac could randomly crash on resume from sleep.
      powerUpCommands = lib.mkBefore "${pkgs.kmod}/bin/modprobe brcmfmac";
      powerDownCommands = lib.mkBefore "${pkgs.kmod}/bin/rmmod brcmfmac";
    };

    # change lid switch behaviour
    #services.logind.lidSwitch = "hibernate";

    # TLP for power management
    services.tlp = {
      enable = true;
      settings = {
        CPU_SCALING_GOVERNOR_ON_AC = "performance";
        CPU_SCALING_GOVERNOR_ON_BAT = "schedutil";
        CPU_BOOST_ON_AC = 1;
        CPU_BOOST_ON_BAT = 0;
      };
    };

    services.udev.extraRules =
      # Disable XHC1 wakeup signal to avoid resume getting triggered some time
      # after suspend. Reboot required for this to take effect.
      lib.optionalString
        (lib.versionAtLeast config.boot.kernelPackages.kernel.version "3.13")
        ''SUBSYSTEM=="pci", KERNEL=="0000:00:14.0", ATTR{power/wakeup}="disabled"'';

    services.printing.enable = true;
    services.printing.drivers = [ pkgs.brlaser ];

    home-manager = pkgs.lib.setAttrByPath [ "users" psCfg.user.name ] {
      # Custom device sway configs
      xdg.configFile = mkIf psCfg.sway.enable {
        "sway/config.d/10-applications.conf".source = ./.config/sway/config.d/applications.conf;
        "sway/config.d/autostart.conf".source = ./.config/sway/config.d/autostart.conf;
        "sway/config.d/10-custom-keybindings.conf".source = ./.config/sway/config.d/custom-keybindings.conf;
        "sway/config.d/input-defaults.conf".source = ./.config/sway/config.d/input-defaults.conf;
        "sway/config.d/screens.conf".source = ./.config/sway/config.d/screens.conf;
      };
    };

    users.users.teutat3s = {
      extraGroups = [ "unbound" ];
    };


    # WLAN frequency compliance (e.g. check for radar with DFS)
    #
    # Radeon driver seems to work better than amdgpu with Radeon R9 M370X
    hardware.firmware = with pkgs; [ wireless-regdb ];
    boot.extraModprobeConfig = ''
      options cfg80211 ieee80211_regdom="DE"
    '';

    # This value determines the NixOS release from which the default
    # settings for stateful data, like file locations and database versions
    # on your system were taken. It‘s perfectly fine and recommended to leave
    # this value at the release version of the first install of this system.
    # Before changing this value read the documentation for this option
    # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
    system.stateVersion = "21.05"; # Did you read the comment?
  };
}