nixos-config/configurations/profile/home/editor/emacs/default.nix

{ config, lib, pkgs, materusArg, ... }:
let
  configPath = "${materusArg.cfg.path}" + "/extraFiles/config/emacs/";
  inits = import ./init.nix {
    path = configPath;
    inherit pkgs;
  };
  packages = epkgs:
    with epkgs; [
      elcord
      persp-mode
      dashboard
      magit
      avy
      corfu
      vterm
      projectile
      company
      clipetty
      which-key
      iedit
      hideshowvis
      evil
      treemacs-evil
      treemacs
      treemacs-nerd-icons
      treemacs-perspective
      treemacs-icons-dired
      treemacs-magit
      treemacs-projectile
      tree-edit
      vertico
      marginalia
      nerd-icons
      nerd-icons-completion
      perspective
      minions
      telephone-line
      rainbow-delimiters
      use-package
      cmake-mode
      lsp-mode
      lsp-java
      lsp-jedi
      lsp-haskell
      lsp-ui
      lsp-treemacs
      dap-mode
      d-mode
      lua-mode
      multiple-cursors
      org
      org-rainbow-tags
      org-roam
      org-roam-ui
      org-review
      csharp-mode
      markdown-mode
      json-mode
      nix-mode
      no-littering
      right-click-context
      dracula-theme
      doom-themes
      orderless
      popper
      undo-tree
      bash-completion
      consult
    ];

  default-config = ''
    ${setNixInit}
    ${inits.initText}
  '';

  emacsEnv = pkgs.buildEnv {
    name = "emacs-env";
    paths = with pkgs; [
      python3
      lua
      multimarkdown
      git
      emacs-lsp-booster
      llvmPackages.clang-tools
      llvmPackages.clang
      llvmPackages.lldb
      (hiPrio gcc)
      gdb
      nixd
      jdt-language-server
      omnisharp-roslyn
    ];
  };

  cfg = config.materus.profile.editor.emacs;

  setNixInit = ''
    (setenv "PATH" (concat (getenv "PATH") ":${emacsEnv}/bin"))
    (setq exec-path (append exec-path '("${emacsEnv}/bin")))
    (call-process-shell-command "${pkgs.xorg.xmodmap}/bin/xmodmap -e \"keycode 148 = Hyper_L\" -e \"remove Mod4 = Hyper_L\" -e \"add Mod3 = Hyper_L\" &" nil 0)
    (call-process-shell-command "${pkgs.xorg.xmodmap}/bin/xmodmap -e \"keycode 66 = Hyper_L\" -e \"remove Mod4 = Hyper_L\" -e \"add Mod3 = Hyper_L\" &" nil 0)
  '';
in
{
  options.materus.profile.editor.emacs.enable =
    materusArg.pkgs.lib.mkBoolOpt false "Enable emacs with materus cfg";

  config = lib.mkIf cfg.enable {
    home.activation.emacsCompile = lib.hm.dag.entryAfter [ "linkGeneration" ] ''
      mkdir -p ${config.xdg.configHome}/emacs/var/backups
      mkdir -p ${config.xdg.configHome}/emacs/var/recovery
      mkdir -p ${config.xdg.configHome}/emacs/etc
      run ${config.programs.emacs.finalPackage}/bin/emacs --batch \
      --eval '(setq warning-minimum-log-level :error)' \
      --eval '(byte-recompile-directory "${config.xdg.configHome}/emacs/etc/materus" 0 t)' \
      --eval '(byte-compile-file "${config.xdg.configHome}/emacs/early-init.el")' \
      --eval '(byte-compile-file "${config.xdg.configHome}/emacs/init.el")'
    '';

    xdg.configFile = {
      "emacs/early-init.el".text = inits.earlyInitText;
      "emacs/init.el".text = default-config;
      "emacs/etc/materus" =
        {
          source = configPath + "etc/materus";
          recursive = true;
        };
    };

    programs.emacs = {
      enable = true;
      package = 
        lib.mkDefault (pkgs.emacs29.override {
          withSQLite3 = true;
          withWebP = true;
          withX = true;
          withGTK3 = true;
          withAlsaLib = true;
          withGconf = true;
          withImageMagick = true;
          withXwidgets = true;
        });
      extraPackages = epkgs: (packages epkgs);
    };

  };
}