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path: root/modules/nixfiles/fonts.nix
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{
  config,
  lib,
  pkgs,
  ...
}:
with lib; let
  cfg = config.nixfiles.modules.fonts;
in {
  imports = [
    (mkAliasOptionModule ["fontScheme"] [
      "nixfiles"
      "modules"
      "fonts"
      "fontScheme"
    ])
  ];

  options.nixfiles.modules.fonts = {
    enable = mkEnableOption "fonts and their configurations";

    fontScheme = let
      mkFont = {
        family,
        style,
        size,
      }: {
        family = mkOption {
          description = "Family of the font.";
          type = types.str;
          default = family;
        };
        style = mkOption {
          description = "Style of the font.";
          type = types.str;
          default = style;
        };
        size = mkOption {
          description = "Size of the font.";
          type = types.int;
          default = size;
        };
      };
    in {
      serifFont = mkFont {
        family = "Iosevka Etoile";
        style = "Regular";
        size = 16;
      };

      serifFontFallback = mkFont {
        family = "Sarasa Gothic J";
        style = "Regular";
        size = 16;
      };

      sansSerifFont = mkFont {
        family = "Iosevka Aile";
        style = "Regular";
        size = 16;
      };

      sansSerifFontFallback = mkFont {
        family = "Sarasa Gothic J";
        style = "Regular";
        size = 16;
      };

      monospaceFont = mkFont {
        family = "Iosevka";
        style = "Regular";
        size = 16;
      };

      monospaceFontFallback = mkFont {
        family = "Sarasa Mono J";
        style = "Regular";
        size = 16;
      };
    };
  };

  config = mkMerge [
    {home-manager.users.root.fonts.fontconfig.enable = false;}
    (mkIf cfg.enable {
      hm.fonts.fontconfig.enable = true;

      fonts = {
        fonts = with pkgs; [
          iosevka-bin
          (iosevka-bin.override {variant = "aile";})
          (iosevka-bin.override {variant = "etoile";})
          sarasa-gothic
        ];

        fontconfig = {
          enable = true;

          defaultFonts = {
            monospace = [
              "Iosevka"
              "Sarasa Mono K"
              "Sarasa Mono J"
              "Sarasa Mono SC"
              "Sarasa Mono CL"
            ];
            sansSerif = [
              "Iosevka Aile"
              "Sarasa Gothic K"
              "Sarasa Gothic J"
              "Sarasa Gothic SC"
              "Sarasa Gothic CL"
            ];
            serif = [
              "Iosevka Etoile"
              "Sarasa Gothic K"
              "Sarasa Gothic J"
              "Sarasa Gothic SC"
              "Sarasa Gothic CL"
            ];
          };
        };
      };
    })
    (mkIf (!cfg.enable) {
      # Disable fonts for headless profiles.
      hm.fonts.fontconfig.enable = mkForce false;
      fonts.fontconfig.enable = mkForce false;
    })
  ];
}