# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).

{
  config,
  lib,
  pkgs,
  ...
}@inputs:

let
  user = "fredrikr";
in
{
  imports = [
    # Include the results of the hardware scan.
    ./hardware-configuration.nix
    #./nbfc.nix
  ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.kernelPackages = pkgs.linuxKernel.packages.linux_zen;
  boot.extraModulePackages = with config.boot.kernelPackages; [
    acer-wmi-battery
  ];
  boot.kernelModules = [
    "acer-wmi-battery"
  ];
  # boot.kernel.sysctl = {
  #   "net.ipv6.conf.all.disable_ipv6" = 1;
  #   "net.ipv6.conf.default.disable_ipv6" = 1;
  # };

  # DUAL BOOT SETUP
  #boot.kernelPackages = pkgs.linuxPackages_latest;
  #boot.loader = {
  #  efi = {
  #    canTouchEfiVariables = true;
  #    efiSysMountPoint = "/boot";
  #  };
  #  grub = {
  #    enable = true;
  #    devices = ["nodev"];
  #    efiSupport = true;
  #    useOSProber = true;
  #    configurationLimit = 5;
  #  };
  #  timeout = 3;
  #};

  networking.hostName = "nixos"; # Define your hostname.
  # Pick only one of the below networking options.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.

  # Set your time zone.
  time.timeZone = "Europe/Oslo";

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";
  i18n.extraLocaleSettings = {
    LC_MESSAGES = "en_US.UTF-8";
    LC_TIME = "nb_NO.UTF-8";
    LC_MONETARY = "nb_NO.UTF-8";
  };
  console = {
    font = "Lat2-Terminus16";
    #  keyMap = "us";
    #   useXkbConfig = true; # use xkb.options in tty.
  };

  i18n.inputMethod = {
    enable = true;
    type = "fcitx5";
    fcitx5.addons = with pkgs; [
      fcitx5-rime
      fcitx5-mozc
      fcitx5-gtk
      qt6Packages.fcitx5-configtool
      libsForQt5.fcitx5-qt
    ];
  };
  # i18n.inputMethod.fcitx5.engines = with pkgs.fcitx-engines; [ mozc ];
  # i18n.inputMethod = {
  #   enabled = "ibus";
  #   ibus.engines = with pkgs.ibus-engines; [ mozc ];
  # };

  # TTY settings
  # luckily this also changes the keyboard layout at boot (for e.g full disk encryption passwords)
  console.keyMap = "dvorak-programmer";

  # GUI settings, this includes login screen
  #services.xserver.layout = "us";
  #services.xserver.xkbVariant = "dvp";
  #services.xserver.xkbOptions = "eurosign:e";

  # Configure keymap in X11
  # services.xserver.xkb.layout = "us";
  # services.xserver.xkb.options = "eurosign:e,caps:escape";

  # Enable the X11 windowing system.
  services.autorandr.enable = true;
  services.xserver = {
    enable = true;
    autorun = true;

    autoRepeatDelay = 200;
    autoRepeatInterval = 24;

    # DVORAK + NO
    xkb.layout = "us,no";
    xkb.variant = "dvp,";
    xkb.options = "compose:menu, grp:alt_shift_toggle, lv3:ralt_switch";

    exportConfiguration = true;

    desktopManager.runXdgAutostartIfNone = true;

    windowManager = {
      xmonad = {
        enable = true;
        enableContribAndExtras = true;
        extraPackages = hpkgs: [
          hpkgs.xmobar
          # hpkgs.xmonad_0_17_0
          # hpkgs.xmonad-contrib_0_17_0
          # hpkgs.xmonad-extras_0_17_0
          # hpkgs.xmonad-screenshot
        ];
      };
    };

    displayManager = {
      lightdm = {
        enable = true;
        greeters.mini = {
          enable = true;
          user = "fredrikr";
          extraConfig = ''
            [greeter]
            cursor-theme-name = Vanilla-DMZ
            cursor-theme-size = 32
            show-input-cursor = false
            show-password-label = false
            password-label-text = password
            invalid-password-text = wrong password
            [greeter-hotkeys]
            mod-key = meta
            shutdown-key = p
            restart-key = r
            hibernate-key = h
            suspend-key = s
            [greeter-theme]
            text-color = "#282A36"
            error-color = "#282A36"
            background-image = ""
            background-color = "#282A36"
            border-color = "#FF5555"
            password-border-color = "#FF5555"
            password-background-color = "#282A36"
            password-color = "#F8F8F2"
            window-color = "#50FA7B"
          '';
        };
      };
      # sessionCommands = '' '';
    };

    synaptics = {
      minSpeed = "7.0";
      maxSpeed = "8.0";
    };
  };

  services.displayManager.defaultSession = "none+xmonad";

  services.libinput = {
    enable = true;

    mouse = {
      accelProfile = "flat";
    };

    touchpad = {
      accelProfile = "flat";
      naturalScrolling = true;
      disableWhileTyping = true;
      accelSpeed = "0.7";
    };
  };

  # Enable CUPS to print documents.
  # services.printing.enable = true;

  # Enable sound.
  sound = {
    # enable = true; deprecated
    # mediaKeys.enable = true; deprecated
  };
  # hardware.pulseaudio.enable = true; use pipewire
  # OR
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };

  services.actkbd =
    let
      volumeStep = "1%";
    in
    {
      enable = true;
      bindings = [
        # "Mute" media key
        {
          keys = [ 113 ];
          events = [ "key" ];
          command = "amixer -q set Master toggle";
        }

        # "Lower Volume" media key
        {
          keys = [ 114 ];
          events = [
            "key"
            "rep"
          ];
          command = "amixer -q set Master ${volumeStep}- unmute";
        }

        # "Raise Volume" media key
        {
          keys = [ 115 ];
          events = [
            "key"
            "rep"
          ];
          command = "amixer -q set Master ${volumeStep}+ unmute";
        }
      ];
    };

  # Enable touchpad support (enabled default in most desktopManager).
  # services.libinput.enable = true;

  services.blueman.enable = true;

  hardware.bluetooth = {
    enable = true;
    powerOnBoot = true;
    # hsphfpd.enable = true; handled by pipewire
    settings = {
      General = {
        Enable = "Source,Sink,Media,Socket";
      };
    };
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.${user} = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
    initialPassword = "password";
    packages = with pkgs; [
      # managed by home-manager
      # firefox
      discord
      #tree
    ];
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = (
    with pkgs;
    [
      vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
      wget
      xorg.xkill
      haskellPackages.xmobar
      feh
      trayer
      xclip
      # xorg.xbacklight
      # htop
      usbutils
      udiskie
      udisks
      # javaPackages.openjfx17
      libGL
      gtk3
      zathura
      libgcc
      gcc
      gdb
      valgrind-light
      gnumake
      # qemu_full
      powertop
      gamemode
      alsa-utils
      acpi
      libnotify
      # fcitx5
      # fcitx5-configtool
      # kdePackages.dolphin
      nnn
      nix-tree
      xsecurelock
    ]
  );

  # programs.steam.enable = true;

  # programs.gamemode.enable = true;

  # nixpkgs.config.allowUnfree = true;

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  # services.openssh.enable = true;

  # Open ports in the firewall.
  networking.firewall = {
    enable = true;
    allowedTCPPorts = [
      # 3389
      # 5900
    ]; # rdp port
    # trustedInterfaces = [
    #   "wlp0s20f3"
    #   "lo"
    #   "enp1s0"
    # ];
    # extraCommands = ''
    #   iptables -A INPUT -s 192.168.0.0/16 -j ACCEPT
    # '';
  };
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # Copy the NixOS configuration file and link it from the resulting system
  # (/run/current-system/configuration.nix). This is useful in case you
  # accidentally delete configuration.nix.
  # system.copySystemConfiguration = true;

  # This option defines the first version of NixOS you have installed on this particular machine,
  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
  #
  # Most users should NEVER change this value after the initial install, for any reason,
  # even if you've upgraded your system to a new NixOS release.
  #
  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
  # to actually do that.
  #
  # This value being lower than the current NixOS release does NOT mean your system is
  # out of date, out of support, or vulnerable.
  #
  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "24.05"; # Did you read the comment?

  # system.autoUpgrade = {
  #   enable = true;
  #   # flake = inputs.self.outPath;
  #   flags = [
  #     "--print-build-logs"
  #   ];
  #   dates = "05:00";
  #   randomizedDelaySec = "45min";
  # };

  # OVERLAYS

  nixpkgs.overlays = [
    (self: super: {
      discord = super.discord.overrideAttrs (_: {
        src = builtins.fetchTarball {
          url = "https://discord.com/api/download?platform=linux&format=tar.gz";
          sha256 = "0k9sk5pmjw7xq68h2s80q8fg48p31albrqrqafmmrxik5f8f96rn";
        };
      });
    })
  ];

  nix = {
    # package = pkgs.nixFlakes;
    extraOptions = "experimental-features = nix-command flakes";
    optimise.automatic = true;
    settings.auto-optimise-store = true;
    gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 30d";
    };
  };

  services.picom = {
    enable = true;
    vSync = true;
    settings = {
      backend = "glx";
      blur = {
        method = "gaussian";
        size = 10;
        deviation = 5.0;
      };
    };
  };

  # systemd.services.background-image = {
  #   wantedBy = [ "multi-user.target" ];
  #   enable = true;
  #   serviceConfig = {
  #     User = "root";
  #     Group = "root";
  #     Type = "oneshot";
  #     # ExecStart = "~/.fehbg";
  #   };
  #   script = "/home/fredrikr/.fehbg &";
  # };

  # Power button invokes suspend, not shutdown.

  services.logind.settings.Login = {
    HandleLidSwitch = "suspend-then-hibernate";
    HandlePowerKey = "ignore";
  };

  programs.xss-lock = {
    enable = true;
    lockerCommand = # "${pkgs.xsecurelock}/bin/xsecurelock";
      let
        xsecurelock-custom = pkgs.writeShellScriptBin "xsecurelock-custom" ''
          export XSECURELOCK_SAVER=saver_blank
          export XSECURELOCK_AUTH=auth_pam_x11
          export XSECURELOCK_BLANK_DPMS_STATE=off
          export XSECURELOCK_SHOW_DATETIME=1
          export XSECURELOCK_DATETIME_FORMAT="%H:%M"
          export XSECURELOCK_BACKGROUND_COLOR="#282A36"
          export XSECURELOCK_AUTH_FOREGROUND_COLOR="#282A36"
          export XSECURELOCK_AUTH_BACKGROUND_COLOR="#50FA7B"
          export XSECURELOCK_AUTH_WARNING_COLOR="#FF5555"
          ${pkgs.xsecurelock}/bin/xsecurelock
        '';
      in
      "${xsecurelock-custom}/bin/xsecurelock-custom";
    extraOptions = [ "--transfer-sleep-lock" ];
  };

  # video acceleration
  # nixpkgs.config.packageOverrides = pkgs: {
  #   intel-vaapi-driver = pkgs.intel-vaapi-driver.override { enableHybridCodec = true; };
  # };
  # hardware.opengl = { # hardware.graphics on unstable
  #   enable = true;
  #   extraPackages = with pkgs; [
  #     intel-media-driver # LIBVA_DRIVER_NAME=iHD
  #     intel-vaapi-driver # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
  #     libvdpau-va-gl
  #   ];
  # };
  environment.sessionVariables = {
    # LIBVA_DRIVER_NAME = "iHD"; # Force intel-media-driver
    GTK_IM_MODULE = "fcitx";
    QT_IM_MODULE = "fcitx";
    XMODIFIERS = "@im=fcitx";
    SDL_IM_MODULE = "fcitx";
    GLFW_IM_MODULE = "ibus"; # Some applications use GLFW
    INPUT_METHOD = "fcitx";
  };

  xdg.portal = {
    enable = true;
    extraPortals = with pkgs; [
      xdg-desktop-portal-gtk
      xdg-desktop-portal-wlr
    ];
    config.common.default = "*";
  };

  services.devmon.enable = true;
  services.gvfs.enable = true;
  services.udisks2.enable = true;

  fonts = {
    # enableDefaultFonts = true;

    packages = with pkgs; [
      # (nerdfonts.override { fonts = [ "FiraCode" "Monoid" ]; })
      nerd-fonts.fira-code
      nerd-fonts.droid-sans-mono
      mplus-outline-fonts.osdnRelease
      # noto-fonts
      # ubuntu_font_family
      # unifont
      # noto-fonts-cjk-sans
      # noto-fonts-cjk-serif
      # carlito
      # dejavu_fonts
      # ipafont
      # kochi-substitute
      # source-code-pro
      # ttf_bitstream_vera
    ];

    # fontconfig = {
    #   antialias = true;
    #   # defaultFonts = {
    #   #   serif = [ "Ubuntu" ];
    #   #   sansSerif = [ "Ubuntu" ];
    #   #   monospace = [ "Ubuntu Source" ];
    #   # };
    #   # defaultFonts = {
    #   #   monospace = [ "Monoid" ];
    #   # };
    #   defaultFonts = {
    #     monospace = [
    #       "DejaVu Sans Mono"
    #       "IPAGothic"
    #     ];
    #     sansSerif = [
    #       "DejaVu Sans"
    #       "IPAPGothic"
    #     ];
    #     serif = [
    #       "DejaVu Serif"
    #       "IPAPMincho"
    #     ];
    #   };
    # };
  };

  xdg.mime = {
    enable = true;
    defaultApplications = {
      "application/pdf" = "org.pwmt.zathura.desktop";
      "image/png" = "feh.desktop";
      "image/jpeg" = "feh.desktop";
      # "text/plain" = "nvim.desktop";
    };
  };

  programs.ssh = {
    startAgent = true;
    agentTimeout = "1h";
    extraConfig = ''
      AddKeysToAgent yes
    '';
  };

  powerManagement.powertop.enable = true;
  # services.auto-cpufreq.enable = true;

  programs.bash.interactiveShellInit = ''
    if ![XTERM = "dumb"]; then
      exec nu
    fi
  '';

  services.gnome.gnome-keyring.enable = true;
  services.gnome.gcr-ssh-agent.enable = false;

  security.pam.services.login.enableGnomeKeyring = true;
  security.pam.services.lightdm.enableGnomeKeyring = true;

  services.dbus.enable = true;

  services.upower.enable = true;

  systemd.user.services.battery-low = {
    description = "batter low notif";
    script = ''
      battery_level=$(${pkgs.acpi}/bin/acpi -b | ${pkgs.gnugrep}/bin/grep -P -o '[0-9]+(?=%)')
      if [ "$battery_level" -le 20 ] && [ "$(${pkgs.acpi}/bin/acpi -b | ${pkgs.gnugrep}/bin/grep -c 'Discharging')" -eq 1 ]; then
        ${pkgs.libnotify}/bin/notify-send -u critical "battery low" "battery level: $battery_level%"
      fi
    '';
    serviceConfig = {
      Type = "oneshot";
    };
  };

  systemd.user.timers.battery-low = {
    description = "check battery level";
    timerConfig = {
      OnBootSec = "2min";
      OnUnitActiveSec = "2min";
    };
    wantedBy = [ "timers.target" ];
  };

  systemd.sleep.extraConfig = ''
    HibernateDelaySec=60min
  '';
}