nix-community.nixvim/plugins/completion/lspkind.nix

{
  lib,
  helpers,
  config,
  pkgs,
  ...
}:
with lib; let
  cfg = config.plugins.lspkind;
in {
  options.plugins.lspkind =
    helpers.extraOptionsOptions
    // {
      enable = mkEnableOption "lspkind.nvim";

      package = helpers.mkPackageOption "lspkind" pkgs.vimPlugins.lspkind-nvim;

      mode =
        helpers.defaultNullOpts.mkEnum
        ["text" "text_symbol" "symbol_text" "symbol"]
        "symbol_text"
        "Defines how annotations are shown";

      preset = helpers.defaultNullOpts.mkEnum ["default" "codicons"] "codicons" "Default symbol map";

      symbolMap = helpers.mkNullOrOption (types.attrsOf types.str) "Override preset symbols";

      cmp = {
        enable = mkOption {
          type = types.bool;
          default = true;
          description = "Integrate with nvim-cmp";
        };

        maxWidth =
          helpers.mkNullOrOption types.int
          "Maximum number of characters to show in the popup";

        ellipsisChar =
          helpers.mkNullOrOption types.str
          "Character to show when the popup exceeds maxwidth";

        menu = helpers.mkNullOrOption (types.attrsOf types.str) "Show source names in the popup";

        after =
          helpers.mkNullOrOption types.str
          "Function to run after calculating the formatting. function(entry, vim_item, kind)";
      };
    };

  config = let
    doCmp = cfg.cmp.enable && config.plugins.nvim-cmp.enable;
    options =
      {
        inherit (cfg) mode preset;
        symbol_map = cfg.symbolMap;
      }
      // (
        if doCmp
        then {
          maxwidth = cfg.cmp.maxWidth;
          ellipsis_char = cfg.cmp.ellipsisChar;
          inherit (cfg.cmp) menu;
        }
        else {}
      )
      // cfg.extraOptions;
  in
    mkIf cfg.enable {
      extraPlugins = [cfg.package];

      extraConfigLua = optionalString (!doCmp) ''
        require('lspkind').init(${helpers.toLuaObject options})
      '';

      plugins.nvim-cmp.formatting.format =
        if cfg.cmp.after != null
        then ''
          function(entry, vim_item)
            local kind = require('lspkind').cmp_format(${helpers.toLuaObject options})(entry, vim_item)

            return (${cfg.cmp.after})(entry, vim_after, kind)
          end
        ''
        else ''
          require('lspkind').cmp_format(${helpers.toLuaObject options})
        '';
    };
}