nixy/home/system/caelestia-shell/scheme.nix

# This Nix module customizes the color scheme of the Caelestia CLI application using the Stylix base16 color palette.
{
  pkgs,
  inputs,
  config,
  ...
}: let
  colors = config.lib.stylix.colors;

  customSchemeFile = pkgs.writeText "custom-dark.txt" ''
    primary_paletteKeyColor ${colors.base0D}
    secondary_paletteKeyColor ${colors.base04}
    tertiary_paletteKeyColor ${colors.base08}
    neutral_paletteKeyColor ${colors.base03}
    neutral_variant_paletteKeyColor ${colors.base03}
    background ${colors.base00}
    onBackground ${colors.base05}
    surface ${colors.base00}
    surfaceDim ${colors.base00}
    surfaceBright ${colors.base02}
    surfaceContainerLowest ${colors.base01}
    surfaceContainerLow ${colors.base01}
    surfaceContainer ${colors.base01}
    surfaceContainerHigh ${colors.base02}
    surfaceContainerHighest ${colors.base02}
    onSurface ${colors.base05}
    surfaceVariant ${colors.base02}
    onSurfaceVariant ${colors.base04}
    inverseSurface ${colors.base05}
    inverseOnSurface ${colors.base00}
    outline ${colors.base03}
    outlineVariant ${colors.base02}
    shadow ${colors.base00}
    scrim ${colors.base00}
    surfaceTint ${colors.base0D}
    primary ${colors.base0D}
    onPrimary ${colors.base00}
    primaryContainer ${colors.base0D}
    onPrimaryContainer ${colors.base05}
    inversePrimary ${colors.base0D}
    secondary ${colors.base0C}
    onSecondary ${colors.base00}
    secondaryContainer ${colors.base02}
    onSecondaryContainer ${colors.base0C}
    tertiary ${colors.base08}
    onTertiary ${colors.base00}
    tertiaryContainer ${colors.base08}
    onTertiaryContainer ${colors.base00}
    error ${colors.base08}
    onError ${colors.base00}
    errorContainer ${colors.base08}
    onErrorContainer ${colors.base05}
    primaryFixed ${colors.base0D}
    primaryFixedDim ${colors.base0D}
    onPrimaryFixed ${colors.base00}
    onPrimaryFixedVariant ${colors.base00}
    secondaryFixed ${colors.base0C}
    secondaryFixedDim ${colors.base0C}
    onSecondaryFixed ${colors.base00}
    onSecondaryFixedVariant ${colors.base02}
    tertiaryFixed ${colors.base08}
    tertiaryFixedDim ${colors.base08}
    onTertiaryFixed ${colors.base00}
    onTertiaryFixedVariant ${colors.base00}
    term0 ${colors.base00}
    term1 ${colors.base08}
    term2 ${colors.base0B}
    term3 ${colors.base0A}
    term4 ${colors.base0D}
    term5 ${colors.base0E}
    term6 ${colors.base0C}
    term7 ${colors.base05}
    term8 ${colors.base03}
    term9 ${colors.base08}
    term10 ${colors.base0B}
    term11 ${colors.base0A}
    term12 ${colors.base0D}
    term13 ${colors.base0E}
    term14 ${colors.base0C}
    term15 ${colors.base07}
    rosewater ${colors.base06}
    flamingo ${colors.base0F}
    pink ${colors.base0E}
    mauve ${colors.base0D}
    red ${colors.base08}
    maroon ${colors.base08}
    peach ${colors.base09}
    yellow ${colors.base0A}
    green ${colors.base0B}
    teal ${colors.base0C}
    sky ${colors.base0C}
    sapphire ${colors.base0C}
    blue ${colors.base0D}
    lavender ${colors.base0D}
    klink ${colors.base0D}
    klinkSelection ${colors.base0D}
    kvisited ${colors.base0E}
    kvisitedSelection ${colors.base0E}
    knegative ${colors.base08}
    knegativeSelection ${colors.base08}
    kneutral ${colors.base0A}
    kneutralSelection ${colors.base0A}
    kpositive ${colors.base0B}
    kpositiveSelection ${colors.base0B}
    text ${colors.base05}
    subtext1 ${colors.base04}
    subtext0 ${colors.base03}
    overlay2 ${colors.base03}
    overlay1 ${colors.base03}
    overlay0 ${colors.base02}
    surface2 ${colors.base02}
    surface1 ${colors.base01}
    surface0 ${colors.base01}
    base ${colors.base00}
    mantle ${colors.base00}
    crust ${colors.base00}
    success ${colors.base0B}
    onSuccess ${colors.base00}
    successContainer ${colors.base0B}
    onSuccessContainer ${colors.base05}
  '';

  colorsHash = builtins.hashString "sha256" (builtins.toJSON colors);

  customCli =
    inputs.caelestia-cli.packages.${pkgs.stdenv.hostPlatform.system}.default.overrideAttrs
    (oldAttrs: {
      name = "${oldAttrs.name or "caelestia-cli"}-themed-${colorsHash}";
      postUnpack = ''
        mkdir -p $sourceRoot/src/caelestia/data/schemes/custom/main
        cp ${customSchemeFile} $sourceRoot/src/caelestia/data/schemes/custom/main/dark.txt
        echo "Custom scheme added to source"
      '';
    });
in {
  programs.caelestia.cli.package = customCli;
}