{ pkgs, ... } :
{
  home.packages = with pkgs; [
    hyprlock
    hypridle
    wlogout
  ];


  home.file = {
    lock = {
      source = ../assets/lock.png;
      target = ".lock.png";
    };
  };

  services = {
    # hypridle to
    # 150 seconds - turn of monitor
    # 300 seconds - lock screen
    # 330 seconds - turn of monitor
    #  30 minutes - put to sleep
    hypridle = {
      enable = true;
      settings = {
        general = {
          lock_cmd = "pidof hyprlock || hyprlock";       # avoid starting multiple hyprlock instances.
          before_sleep_cmd = "loginctl lock-session";    # lock before suspend.
          after_sleep_cmd = "hyprctl dispatch dpms on";  # to avoid having to press a key twice to turn on the display.
        };

        listener = [
          {
            timeout = 150;                                # 2.5min.
            on-timeout = "brightnessctl -s set 10";         # set monitor backlight to minimum, avoid 0 on OLED monitor.
            on-resume = "brightnessctl -r";                 # monitor backlight restore.
          }
          {
            timeout = 300;                                 # 5min
            on-timeout = "loginctl lock-session";            # lock screen when timeout has passed
          }
          {
            timeout = 330;                                                     # 5.5min
            on-timeout = "hyprctl dispatch dpms off";                            # screen off when timeout has passed
            on-resume = "hyprctl dispatch dpms on && brightnessctl -r";          # screen on when activity is detected after timeout has fired.
          }
          {
            timeout = 1800;                                # 30min
            on-timeout = "systemctl suspend";                # suspend pc
          }
        ];

      };
    };
  };



  programs.wlogout = {
    enable = true;
    layout = [
      {
        "label"  = "lock";
        "action" = "hyprlock";
        "text" = "Lock";
        "keybind" = "l";
      }
      {
        "label" = "shutdown";
        "action" = "systemctl poweroff";
        "text" = "Shutdown";
        "keybind" = "s";
      }
      {
        "label" = "suspend";
        "action" = "systemctl suspend";
        "text" = "Suspend";
        "keybind" = "u";
      }
      {
        "label" = "reboot";
        "action" = "systemctl reboot";
        "text" = "Reboot";
        "keybind" = "r";
      }
      {
        "label" = "hibernate";
        "action" = "systemctl hibernate";
        "text" = "Hibernate";
        "keybind" = "h";
      }
      {
        "label" = "reboot";
        "action" = "systemctl reboot";
        "text" = "Reboot";
        "keybind" = "r";
      }
    ];
  };

  catppuccin.wlogout.iconStyle = "wleave";

  programs.hyprlock = {
    enable = true;
    settings = {
      auth = {
        fingerprint = {
          enabled = true;
        };
      };

      background = {
        path = "~/.lock.png";
        color = "$base";
      };

      label = {
        monitor = "";
        text = "$TIME";
        color = "$text";
        font_size = 90;
        position = "0, 0";
        halign = "center";
        valign = "top";
      };

      input-field = {
        monitor = "";
        size = "300, 60";
        outline_thickness = 4;
        dots_size = 0.2;
        dots_spacing = 0.2;
        dots_center = true;
        outer_color = "$accent";
        inner_color = "$surface0";
        font_color = "$text";
        fade_on_empty = true;
        placeholder_text = ''<span foreground="##$textAlpha"><i>󰌾 Logged in as </i><span foreground="##$accentAlpha">$USER</span></span>'';
        hide_input = false;
        check_color = "$accent";
        fail_color = "$red";
        fail_text = ''<i>$FAIL <b>($ATTEMPTS)</b></i>'';
        capslock_color = "$yellow";
        position = "0, -47";
        halign = "center";
        valign = "center";
      };
    };
  };

  catppuccin.hyprlock.enable = true;
  catppuccin.hyprlock.flavor = "mocha";
  catppuccin.hyprlock.accent = "blue";
  catppuccin.hyprlock.useDefaultConfig = false; # we use our own
}