{
  pkgs,
  config,
  lib,
  ...
}:
let
  lang_support_id = "java";
  inherit (config.grimmShared) enable tooling graphical;
  inherit (lib)
    optionals
    mkIf
    types
    mkOption
    elem
    ;
in
{
  config = mkIf (enable && tooling.enable && (elem lang_support_id tooling.supportedLangs)) {
    environment.systemPackages = [
      pkgs.jdk17
      pkgs.visualvm
    ] ++ optionals graphical [ pkgs.jetbrains.idea-community ];

    grimmShared.tooling.lang_servers = [
      {
        lsp = {
          package = pkgs.java-language-server;
        };
        fmt = {
          package = pkgs.google-java-format;
          includes = [ "*.java" ];
        };
      }
    ];
  };

  options.grimmShared.tooling.supportedLangs = mkOption {
    type = types.listOf (types.enum [ lang_support_id ]);
  };
}