neovim-flake/modules/visuals/visuals.nix

{
  config,
  lib,
  ...
}: let
  inherit (lib) mkEnableOption mkMappingOption mkOption types literalExpression;

  cfg = config.vim.visuals;
in {
  options.vim.visuals = {
    enable = mkEnableOption "Visual enhancements.";

    nvimWebDevicons.enable = mkEnableOption "dev icons. Required for certain plugins [nvim-web-devicons].";

    scrollBar.enable = mkEnableOption "scrollbar [scrollbar.nvim]";

    smoothScroll.enable = mkEnableOption "smooth scrolling [cinnamon-nvim]";

    cellularAutomaton = {
      enable = mkEnableOption "cellular automaton [cellular-automaton]";

      mappings = {
        makeItRain = mkMappingOption "Make it rain [cellular-automaton]" "<leader>fml";
      };
    };

    fidget-nvim = {
      enable = mkEnableOption "nvim LSP UI element [fidget-nvim]";

      align = {
        bottom = mkOption {
          type = types.bool;
          description = "Align to bottom";
          default = true;
        };

        right = mkOption {
          type = types.bool;
          description = "Align to right";
          default = true;
        };
      };
    };

    cursorline = {
      enable = mkEnableOption "line hightlighting on the cursor [nvim-cursorline]";

      lineTimeout = mkOption {
        type = types.int;
        description = "Time in milliseconds for cursorline to appear";
        default = 0;
      };

      lineNumbersOnly = mkOption {
        type = types.bool;
        description = "Hightlight only in the presence of line numbers";
        default = true;
      };
    };

    indentBlankline = {
      enable = mkEnableOption "indentation guides [indent-blankline]";

      listChar = mkOption {
        type = types.str;
        description = "Character for indentation line";
        default = "│";
      };

      fillChar = mkOption {
        description = "Character to fill indents";
        type = with types; nullOr types.str;
        default = "⋅";
      };

      eolChar = mkOption {
        description = "Character at end of line";
        type = with types; nullOr types.str;
        default = "↴";
      };

      showEndOfLine = mkOption {
        description = ''
          Displays the end of line character set by [](#opt-vim.visuals.indentBlankline.eolChar) instead of the
          indent guide on line returns.
        '';
        type = types.bool;
        default = cfg.indentBlankline.eolChar != null;
        defaultText = literalExpression "config.vim.visuals.indentBlankline.eolChar != null";
      };

      showCurrContext = mkOption {
        description = "Highlight current context from treesitter";
        type = types.bool;
        default = config.vim.treesitter.enable;
        defaultText = literalExpression "config.vim.treesitter.enable";
      };

      useTreesitter = mkOption {
        description = "Use treesitter to calculate indentation when possible.";
        type = types.bool;
        default = config.vim.treesitter.enable;
        defaultText = literalExpression "config.vim.treesitter.enable";
      };
    };

    highlight-undo = {
      enable = mkEnableOption "highlight undo [highlight-undo]";

      highlightForCount = mkOption {
        type = types.bool;
        default = true;
        description = ''
          Enable support for highlighting when a <count> is provided before the key
          If set to false it will only highlight when the mapping is not prefixed with a <count>
        '';
      };

      duration = mkOption {
        type = types.int;
        description = "Duration of highlight";
        default = 500;
      };

      undo = {
        hlGroup = mkOption {
          type = types.str;
          description = "Highlight group for undo";
          default = "HighlightUndo";
        };
      };

      redo = {
        hlGroup = mkOption {
          type = types.str;
          description = "Highlight group for redo";
          default = "HighlightUndo";
        };
      };
    };
  };
}