neovim/plugins/theme/default.nix

{ lib
, plugins
, theme
, lualine-nvim
, lualine-lsp-progress
, nvim-web-devicons
, tabby-nvim
, enableDevIcons ? false
, enableTabby ? false
, themeCfg ? { }
, ...
}:

let
  inherit (builtins) readFile;

  themeFlavour = if themeCfg ? flavour then theme.flavour else "frappe";
  themeConfig = if themeCfg ? config then theme.config else ''
    vim.g.catppuccin_flavour = "${themeFlavour}"
    require("catppuccin").setup()
    vim.cmd([[colorscheme catppuccin]])
  '';

  lualineSettings = lib.toLua (lib.attrByPath [ "lualine" "settings" ] { } plugins);
  lualinePlugins = [ lualine-nvim lualine-lsp-progress ];
in
{
  luaConfig = themeConfig
    + (readFile (lib.substituteAll { src = ./lualine.lua; inherit lualineSettings; }))
    + (lib.optionalString enableTabby (readFile ./tabby-nvim.lua));

  plugins = [ theme ]
    ++ lualinePlugins
    ++ (lib.optional enableDevIcons nvim-web-devicons)
    ++ (lib.optional enableTabby tabby-nvim);
}