nixos-config/lib/helpers/kanshi.nix

{
  mkWallpaperScript = { pkgs, config }: let
    wallpapers = "/home/${config.ptw.system.singleUser}/Data/Wallpaper";
    wallpapersHorizontal = "${wallpapers}/horizontal";
    wallpapersVertical = "${wallpapers}/vertical";
  in pkgs.writeShellScript "wallpaper.sh" ''
    set -x
    [[ $# -lt 1 ]] && echo "No profile specified" && exit 1

    random_file() {
      find "$1" -maxdepth 1 -type f | shuf -n 1
    }

    setbg() {
      # Sets the background of $1 to $2
      swaymsg "output \"$1\" background $2 fill"
    }

    case $1 in
      homeMultihead)
        horiz=$(random_file ${wallpapersHorizontal})
        vert=$(random_file ${wallpapersVertical})

        setbg "DP-2" $horiz
        setbg "HDMI-A-3" $vert
        ;;
      laptopMultihead)
        horiz1=$(random_file ${wallpapersHorizontal})
        horiz2=$(random_file ${wallpapersHorizontal})

        setbg "eDP-1" $horiz1
        setbg "HDMI-A-1" $horiz2
        ;;
      genericMultihead)
        horiz1=$(random_file ${wallpapersHorizontal})
        horiz2=$(random_file ${wallpapersHorizontal})

        setbg "eDP-1" $horiz1
        setbg "HDMI-A-1" $horiz2
        ;;
      laptop)
        horiz=$(random_file ${wallpapersHorizontal})

        setbg "eDP-1" $horiz
        ;;
    esac
  '';
  mkProfile = { script, name, outputs }: {
    outputs = outputs;
    exec = "${script} ${name}";
  };
}