{ config, inputs, lib, options, pkgs, ... }:

with lib;
let
  cfg = config.samfelag.modules.editors.emacs;
  i3Cfg = config.samfelag.modules.desktop.i3;
  emacsPackages = epkgs: [
    epkgs.vterm
  ];
  emacsWithPackages = with pkgs; ((emacsPackagesFor emacsNativeComp).emacsWithPackages emacsPackages);
in {
  options.samfelag.modules.editors.emacs = {
    enable = mkEnableOption "emacs";
  };

  config = mkIf cfg.enable {
    nixpkgs.overlays = [ inputs.emacs-overlay.overlay ];

    environment.systemPackages = with pkgs; [
      ## Emacs itself
      binutils
      emacsWithPackages

      # emacsPgtkGcc

      ## Doom dependencies
      git
      (ripgrep.override { withPCRE2 = true; })
      gnutls

      ## Opt deps
      fd
      imagemagick
      pinentry_emacs
      zstd

      ## Modules deps
      # :tools vterm
      gcc
      gnumake
      libtool
      cmake

      # # :lang cc
      # ccls
      # cmake
      # gcc
      # glslang
      # # :lang haskell
      # stack
      # haskellPackages.ghcide
      # haskellPackages.hoogle
      # # :lang latex && :lang org (latex preview)
      # (texlive.combine { inherit (texlive) scheme-full; })
      # # biber
      # # :lang nix
      # nixfmt
      # # :lang python
      # black
      # python3
      # python3Packages.isort
      # # python3Packages.python-language-server
      # python3Packages.pytest
      # python3Packages.setuptools
      # nodePackages.pyright
      # # :tools lookup & :lang org +roam
      # sqlite
      # # :tools direnv
      # direnv

      # Fonts
      emacs-all-the-icons-fonts
      # fira-code
      # fira-code-symbols

      graphviz
    ];

    fonts.fonts = [ pkgs.emacs-all-the-icons-fonts ];

    env.PATH = [ "$HOME/.config/emacs/bin" ];

    hm.xdg.configFile."doom" = {
      source = ../../config/doom;
      recursive = true;
    };

    system.userActivationScripts = {
      installDoomEmacs = ''
        EMACS_FOLDER="$HOME/.config/emacs"
        echo $XDG_CONFIG_HOME
        echo $EMACS_FOLDER
        if [ ! -d "$EMACS_FOLDER" ]; then
          ${pkgs.git}/bin/git clone --depth=1 --single-branch "https://github.com/doomemacs/doomemacs" "$EMACS_FOLDER"
        fi
      '';
    };

    samfelag.modules.desktop.i3.extraKeybindings = lib.mkIf i3Cfg.enable {
      "${i3Cfg.mod}+Shift+e" =  "exec ${emacsWithPackages}/bin/emacs";
    };

  };
}