# In home.nix or a separate module
{
  pkgs,
  lib,
  ...
}: let
  # Define the script package
  hakase-cmd-screensaver = pkgs.writeShellScriptBin "hakase-cmd-screensaver" ''
    export PATH="${lib.makeBinPath [
      pkgs.coreutils
      pkgs.procps # pkill, pgrep
      pkgs.jq
      pkgs.hyprland # hyprctl
      pkgs.terminaltexteffects # tte
    ]}:$PATH"

    screensaver_in_focus() {
      hyprctl activewindow -j | jq -e '.class == "org.hakase.screensaver"' >/dev/null 2>&1
    }

    exit_screensaver() {
      hyprctl keyword cursor:invisible false
      pkill -x tte 2>/dev/null
      pkill -f org.hakase.screensaver 2>/dev/null
      exit 0
    }

    trap exit_screensaver SIGINT SIGTERM SIGHUP SIGQUIT

    printf '\e[?1000h\e[?1003h'
    while read -rsn1 -t 0.1; do :; done

    printf '\033]11;rgb:00/00/00\007'  # Black background
    hyprctl keyword cursor:invisible true &>/dev/null

    # Note: ''${variable} is how we escape bash variables in Nix
    tty=$(tty 2>/dev/null)

    while true; do
      tte -i "$HOME/.config/hakase/branding/screensaver.txt" \
        --frame-rate 120 \
        --canvas-width 0 \
        --canvas-height 0 \
        --reuse-canvas \
        --anchor-canvas c \
        --anchor-text c \
        --random-effect \
        --exclude-effects dev_worm \
        --no-eol \
        --no-restore-cursor &

      while pgrep -t "''${tty#/dev/}" -x tte >/dev/null; do
        if read -rsn1 -t 1 || ! screensaver_in_focus; then
          exit_screensaver
        fi
      done
    done
  '';
  hakase-launch-screensaver = pkgs.writeShellScriptBin "hakase-launch-screensaver" ''
    # 1. Path Setup
    # We include necessary utils.
    # NOTE: We assume 'hakase-cmd-screensaver', 'walker', and your terminals
    # are already installed in your system/home profile.
    export PATH="${lib.makeBinPath [
      pkgs.coreutils
      pkgs.procps # pgrep
      pkgs.jq
      pkgs.hyprland # hyprctl
      pkgs.libnotify # notify-send
      pkgs.xdg-terminal-exec
      pkgs.terminaltexteffects # tte
    ]}:$PATH"

    if ! command -v tte &>/dev/null; then
      exit 1
    fi

    pgrep -f org.hakase.screensaver && exit 0

    if [[ -f "$HOME/.local/state/hakase/toggles/screensaver-off" ]] && [[ "$1" != "force" ]]; then
      exit 1
    fi

    if command -v walker &>/dev/null; then
        walker -q
    fi

    focused=$(hyprctl monitors -j | jq -r '.[] | select(.focused == true).name')
    terminal=$(xdg-terminal-exec --print-id)

    # 4. Launch loop
    for m in $(hyprctl monitors -j | jq -r '.[] | .name'); do
      hyprctl dispatch focusmonitor "$m"

      case "$terminal" in
      *Alacritty*)
        hyprctl dispatch exec -- \
          alacritty --class=org.hakase.screensaver \
          --config-file "$HOME/.config/alacritty/screensaver.toml" \
          -e hakase-cmd-screensaver
        ;;
      *ghostty*)
        hyprctl dispatch exec -- \
          ghostty --class=org.hakase.screensaver \
          --config-file="$HOME/.config/ghostty/screensaver" \
          --font-size=18 \
          -e hakase-cmd-screensaver
        ;;
      *kitty*)
        hyprctl dispatch exec -- \
          kitty --class=org.hakase.screensaver \
          --override font_size=18 \
          --override window_padding_width=0 \
          -e hakase-cmd-screensaver
        ;;
      *)
        notify-send "✋  Screensaver only runs in Alacritty, Ghostty, or Kitty"
        ;;
      esac
    done

    # 5. Restore focus
    hyprctl dispatch focusmonitor "$focused"
  '';
  hakase-toggle-screensaver = pkgs.writeShellScriptBin "hakase-toggle-screensaver" ''
    STATE_FILE="$HOME/.local/state/omarchy/toggles/screensaver-off"

    if [[ -f "$STATE_FILE" ]]; then
      rm -f "$STATE_FILE"
      ${pkgs.libnotify}/bin/notify-send "󱄄   Screensaver enabled"
    else
      mkdir -p "$(dirname "$STATE_FILE")"
      touch "$STATE_FILE"
      ${pkgs.libnotify}/bin/notify-send "󱄄   Screensaver disabled"
    fi
  '';
in {
  environment.systemPackages = with pkgs; [
    hakase-launch-screensaver
    hakase-cmd-screensaver
    hakase-toggle-screensaver
  ];
}