modules: start breaking down core modules; simplify tree structure

modules/plugins/ui/modes/config.nix

@@ -0,0 +1,30 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf nvim boolToString;
+
+  cfg = config.vim.ui.modes-nvim;
+in {
+  config = mkIf cfg.enable {
+    vim.startPlugins = [
+      "modes-nvim"
+    ];
+
+    vim.luaConfigRC.modes-nvim = nvim.dag.entryAnywhere ''
+      require('modes').setup({
+        set_cursorline = ${boolToString cfg.setCursorline},
+        line_opacity = {
+          visual = 0,
+        },
+        colors = {
+          copy = "${toString cfg.colors.copy}",
+          delete = "${toString cfg.colors.delete}",
+          insert = "${toString cfg.colors.insert}",
+          visual = "${toString cfg.colors.visual}",
+        },
+      })
+    '';
+  };
+}

modules/plugins/ui/modes/default.nix

@@ -0,0 +1,6 @@
+_: {
+  imports = [
+    ./modes.nix
+    ./config.nix
+  ];
+}

modules/plugins/ui/modes/modes.nix

@@ -0,0 +1,36 @@
+{lib, ...}: let
+  inherit (lib) mkEnableOption mkOption types;
+in {
+  options.vim.ui.modes-nvim = {
+    enable = mkEnableOption "modes.nvim's prismatic line decorations";
+
+    setCursorline = mkOption {
+      type = types.bool;
+      description = "Set a colored cursorline on current line";
+      default = false; # looks ugly, disabled by default
+    };
+
+    colors = {
+      copy = mkOption {
+        type = types.str;
+        description = "The #RRGGBB color code for the visual mode highlights";
+        default = "#f5c359";
+      };
+      delete = mkOption {
+        type = types.str;
+        description = "The #RRGGBB color code for the visual mode highlights";
+        default = "#c75c6a";
+      };
+      insert = mkOption {
+        type = types.str;
+        description = "The #RRGGBB color code for the visual mode highlights";
+        default = "#78ccc5";
+      };
+      visual = mkOption {
+        type = types.str;
+        description = "The #RRGGBB color code for the visual mode highlights";
+        default = "#9745be";
+      };
+    };
+  };
+}