NixOS/home/modules/hyprland/wallust/default.nix

{
  pkgs,
  unstable,
  lib,
  config,
  ...
}:
let
  cfg = config.profile.hyprland;
  inherit (lib.meta) getExe;
  wallpaperDir = "${config.home.homeDirectory}/.cache/wallpaper";
  initWallPaperScript =
    pkgs.writeShellScriptBin "init-wallpaper.sh"
      # sh
      ''
        init_wallpaper="${../wallpaper.jpeg}"
        cache_file="${wallpaperDir}/current"
        blurred="${wallpaperDir}/blurred.png"
        square="${wallpaperDir}/square.png"

        mkdir -p "${wallpaperDir}"

        if [ ! -f "$cache_file" ]; then
            cp "$init_wallpaper" "$cache_file"
        fi

        if [ ! -f "$blurred" ]; then
            ${pkgs.graphicsmagick}/bin/gm convert -resize 75% -blur 50x30 "$cache_file" "$blurred"
        fi

        if [ ! -f "$square" ]; then
            ${pkgs.imagemagick}/bin/magick "$cache_file" -resize 25% -gravity Center -extent 1:1 "$square"
        fi

        if [ ! -f "${config.home.homeDirectory}/.cache/wallust/sequences" ]; then
            wallust run "$cache_file"
        fi
      '';
in
{
  imports = [
    ./alacritty.nix
    ./foot.nix
    ./hyprland.nix
    ./kitty.nix
    ./rofi.nix
    ./waybar.nix
    ./wlogout.nix
  ];
  config = lib.mkIf cfg.enable {
    home.packages = [
      pkgs.imagemagick
      unstable.wallust
    ];

    wayland.windowManager.hyprland.settings.exec-once = lib.mkOrder 10 ([
      (getExe initWallPaperScript)
    ]);

    # See https://codeberg.org/explosion-mental/wallust/src/branch/master/wallust.toml
    profile.hyprland.wallust.settings = {
      backend = "kmeans";
      color_space = "lch";
      alpha = 100;
      threshold = 1;
      palette = "dark";
      checkContrast = true;
    };

    home.file.".config/wallust/wallust.toml".source = (
      (pkgs.formats.toml { }).generate "wallust.toml" cfg.wallust.settings
    );

    # home.file.".config/wallust/wallust.toml".source = (
    #   (pkgs.formats.toml { }).generate "wallust.toml" {
    #     # See https://codeberg.org/explosion-mental/wallust/src/branch/master/wallust.toml
    #     # for more information about the configuration options.
    #
    #     # How the image is parse, in order to get the colors:
    #     # full - resized - wal - thumb -  fastresize - kmeans
    #     backend = wallust.backend;
    #
    #     # What color space to use to produce and select the most prominent colors:
    #     # lab - labmixed - lch - lchmixed
    #     color_space = wallust.colorSpace;
    #     threshold = wallust.threshold;
    #
    #     # Use the most prominent colors in a way that makes sense, a scheme color palette:
    #     # dark - dark16 - darkcomp - darkcomp16
    #     # light - light16 - lightcomp - lightcomp16
    #     # harddark - harddark16 - harddarkcomp - harddarkcomp16
    #     # softdark - softdark16 - softdarkcomp - softdarkcomp16
    #     # softlight - softlight16 - softlightcomp - softlightcomp16
    #     palette = wallust.palette;
    #
    #     # Ensures a "readable contrast" (OPTIONAL, disabled by default)
    #     # Should only be enabled when you notice an unreadable contrast frequently happening
    #     # with your images. The reference color for the contrast is the background color.
    #     check_contrast = wallust.checkContrast;
    #
    #     # Color saturation, between [1% and 100%] (OPTIONAL, disabled by default)
    #     # usually something higher than 50 increases the saturation and below
    #     # decreases it (on a scheme with strong and vivid colors)
    #     # saturation = 50;
    #
    #     # Alpha value for templating, by default 100 (no other use whatsoever)
    #     alpha = wallust.alpha;
    #
    #     templates =
    #       # Templates requires certain syntax
    #       #
    #       # See: https://codeberg.org/explosion-mental/wallust/wiki/wallust.1-Man-Page
    #       # Note that the documentation is for 3.x and above.
    #       let
    #         out = config.home.homeDirectory + "/.cache/wallust";
    #       in
    #       {
    #         waybar = {
    #           template = "waybar.css";
    #           # target = out + "/waybar.css";
    #           target = "${config.home.homeDirectory}/.config/waybar/style.css";
    #         };
    #         wlogout = {
    #           template = "wlogout.css";
    #           target = out + "/wlogout.css";
    #         };
    #         hyprland = {
    #           template = "hyprland.conf";
    #           target = out + "/hyprland.conf";
    #         };
    #         kitty = {
    #           template = "kitty.conf";
    #           target = "${config.home.homeDirectory}/.config/kitty/kitty.d/99-colors.conf";
    #         };
    #         base16-nvim = {
    #           template = "base16-nvim.lua";
    #           target = out + "/base16-nvim.lua";
    #         };
    #         rofi = {
    #           template = "rofi.rasi";
    #           target = out + "/rofi.rasi";
    #         };
    #         alacritty = {
    #           template = "alacritty.toml";
    #           target = out + "/alacritty.toml";
    #         };
    #         foot = {
    #           template = "foot.ini";
    #           target = "${config.home.homeDirectory}/.config/foot/colors.ini";
    #         };
    #       };
    #   }
    # );
  };
}