colors: add color options, add catpuccin-mocha.nix

modules/options/style/colors.nix

@@ -1,21 +1,48 @@
-{lib, ...}: let
-  inherit (lib) mkOption;
-  inherit (lib.types) str;
+# NOTE: This module is entirely inspired by raf,
+# most of the nix code is also taken from him,
+# so please do check out his configuration!
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkOptionType isString mkOption;
+  inherit (lib.strings) replaceStrings hasPrefix removePrefix toLower;
+  inherit (lib.types) enum str coercedTo nullOr attrsOf;
+
+  cfg = config.modules.style;
+
+  nameToSlug = name: toLower (replaceStrings [" "] ["-"] name);
+
+  hexColorType = mkOptionType {
+    name = "hex-color";
+    descriptionClass = "noun";
+    description = "RGB color in hex format";
+    check = x: isString x && !(hasPrefix "#" x);
+  };
+
+  colorType = attrsOf (coercedTo str (removePrefix "#") hexColorType);
+
+  getPaletteFromScheme = slug:
+    if builtins.pathExists ./palettes/${slug}.nix
+    then (import ./palettes/${slug}.nix).colorscheme.palette
+    else throw "The following colorscheme was imported but not found: ${slug}";
 in {
   options.modules.style = {
     colorScheme = {
       name = mkOption {
-        type = str;
+        type = nullOr (enum ["Catppuccin Mocha" "Catppuccin Latte"]);
         default = "Catppuccin Mocha";
       };
       slug = {
         type = str;
-        default = "catppuccin-mocha";
+        default = nameToSlug "${toString cfg.colorScheme.name}";
       };
       variant = {
       };
-      colors =
-        mkOption {
+      colors = mkOption {
+        type = colorType;
+        default = getPaletteFromScheme cfg.colorScheme.slug;
       };
     };
   };

modules/options/style/module.nix

@@ -10,6 +10,7 @@ in {
     ./qt.nix
     ./gtk.nix
     ./fonts.nix
+    ./colors.nix
   ];
 
   options.modules.style = {

modules/options/style/palettes/catppuccin-mocha.nix

@@ -0,0 +1,25 @@
+{
+  colorscheme = {
+    slug = "catppuccin-mocha";
+    name = "Catppuccin Mocha";
+    variant = "dark";
+    palette = {
+      base00 = "#1e1e2e"; # Base
+      base01 = "#181825"; # Mantle
+      base02 = "#313244"; # Surface0
+      base03 = "#45475a"; # Surface1
+      base04 = "#585b70"; # Surface2
+      base05 = "#cdd6f4"; # text
+      base06 = "#f5e0dc"; # rosewater
+      base07 = "#b4befe"; # lavender
+      base08 = "#f38ba8"; # red
+      base09 = "#fab387"; # peach
+      base0A = "#a6e3a1"; # yellow
+      base0B = "#94e2d5"; # green
+      base0C = "#94e2d5"; # teal
+      base0D = "#89b4fa"; # blue
+      base0E = "#cba6f7"; # mauve
+      base0F = "#f2cdcd"; # flamingo
+    };
+  };
+}