visuals: move cinnamon-nvim to its own module; deprecate smoothScroll

The option visuals.smoothScroll was confusing as there can be more than one backend.

modules/plugins/visuals/cinnamon-nvim/cinnamon-nvim.nix

@@ -0,0 +1,38 @@
+{lib, ...}: let
+  inherit (lib.modules) mkRemovedOptionModule;
+  inherit (lib.options) mkOption mkEnableOption;
+  inherit (lib.types) submodule attrs;
+  inherit (lib.nvim.types) mkPluginSetupOption;
+in {
+  imports = [
+    (mkRemovedOptionModule ["vim" "visuals" "smoothScroll"] ''
+      `vim.visuals.smoothScroll` has been removed. You may consider enabling the
+      option `vim.visuals.cinnamon-nvim` to repliace previous smooth scrolling
+      behaviour.
+    '')
+  ];
+
+  options.vim.visuals.cinnamon-nvim = {
+    enable = mkEnableOption "smooth scrolling for ANY command [cinnamon-nvim]";
+    setupOpts = mkPluginSetupOption "cinnamon.nvim" {
+      options = mkOption {
+        type = attrs;
+        default = {
+          # Defaults provided for the sake of documentation only!
+          # Who would've guessed setupOpts.options would be confusing?
+          mode = "cursor";
+          count_only = false;
+        };
+        description = "Scroll options";
+      };
+
+      keymaps = mkOption {
+        description = "Keymap options for Cinnamon. Please see documentation before enablg";
+        type = submodule {
+          basic = mkEnableOption "basic animation keymaps";
+          extra = mkEnableOption "extra animation keymaps";
+        };
+      };
+    };
+  };
+}

modules/plugins/visuals/cinnamon-nvim/config.nix

@@ -0,0 +1,21 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (lib.nvim.lua) toLuaObject;
+  inherit (lib.nvim.dag) entryAnywhere;
+
+  cfg = config.vim.visuals.cinnamon-nvim;
+in {
+  config = mkIf cfg.enable {
+    vim = {
+      startPlugins = ["cinnamon-nvim"];
+
+      pluginRC.cursorline = entryAnywhere ''
+        require("cinnamon").setup(${toLuaObject cfg.setupOpts})
+      '';
+    };
+  };
+}

modules/plugins/visuals/cinnamon-nvim/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./config.nix
+    ./cinnamon-nvim.nix
+  ];
+}

modules/plugins/visuals/default.nix

@@ -1,6 +1,7 @@
 {
   imports = [
-    ./fidget
+    ./cinnamon-nvim
+    ./fidget-nvim
     ./indent-blankline
     ./nvim-cursorline
     ./nvim-scrollbar

modules/plugins/visuals/visuals.nix

@@ -3,8 +3,8 @@
   lib,
   ...
 }: let
-  inherit (lib.options) mkEnableOption mkOption literalExpression;
-  inherit (lib.types) int bool str nullOr either listOf attrsOf;
+  inherit (lib.options) mkEnableOption mkOption;
+  inherit (lib.types) int bool str;
   inherit (lib.nvim.binds) mkMappingOption;
 
   cfg = config.vim.visuals;
@@ -12,8 +12,6 @@ in {
   options.vim.visuals = {
     enable = mkEnableOption "Visual enhancements.";
 
-    smoothScroll.enable = mkEnableOption "smooth scrolling [cinnamon-nvim]";
-
     cellularAutomaton = {
       enable = mkEnableOption "cellular automaton [cellular-automaton]";