{ pkgs, config, lib, ... }:
let
  switch = pkgs.writeShellScript "switch.sh" ''
    OUT_PATH=/tmp/nixos-rebuild-nom-$(date +%s)
    ${lib.getExe pkgs.nix-output-monitor} build /etc/nixos\#nixosConfigurations.${config.networking.hostName}.config.system.build.toplevel -o $OUT_PATH
    ${pkgs.nix}/bin/nix-env -p /nix/var/nix/profiles/system --set $OUT_PATH
    $OUT_PATH/bin/switch-to-configuration switch 
    unlink $OUT_PATH
  '';
  garbage = pkgs.writeShellScript "garbage.sh" ''
    nix-collect-garbage -d
    echo Cleaning up boot entries...
    /run/current-system/bin/switch-to-configuration boot
    echo Done
  '';
in
{
  programs.command-not-found.enable = false;
  programs.nix-index-database.comma.enable = true;
  environment.systemPackages = with pkgs; [
    bat
    eza
    duf
    trash-cli
    nix-output-monitor
    iperf
    jq
  ];
  users.defaultUserShell = pkgs.zsh;
  programs.fzf = {
    keybindings = true;
  };
  programs.zsh =
    {
      enable = true;
      shellAliases = {
        rm = "trash";
        ls = "eza --icons";
        l = "ls -l";
        ll = "ls -la";
        la = "ls -a";
        less = "bat";
        run0 = "run0 --setenv=PATH=$PATH --setenv=LOCALE_ARCHIVE=$LOCALE_ARCHIVE";
        update = "cd /etc/nixos && nix flake update";
        switch = "run0 ${switch}";
      };
      histSize = 100000;
      histFile = "~/.local/share/zsh/history";
      syntaxHighlighting.enable = true;
      autosuggestions = {
        enable = true;
        highlightStyle = "fg=#00bbbb,bold";
      };
      shellInit = ''
        zsh-newuser-install () {}
      '';

      interactiveShellInit =
        ''
          export MCFLY_KEY_SCHEME=vim
          export MCFLY_FUZZY=2
          export MCFLY_DISABLE_MENU=TRUE
          export MCFLY_RESULTS=30
          export MCFLY_INTERFACE_VIEW=BOTTOM
          export MCFLY_PROMPT="❯"
          # fix for networkctl
          zstyle ':completion:*:complete:networkctl:*' list-grouped true
          source ${pkgs.agdsn-zsh-config}/etc/zsh/zshrc
          source ${pkgs.zsh-fzf-tab}/share/fzf-tab/fzf-tab.plugin.zsh
          unsetopt extendedglob

      
          function svpn() {
            unit=$(systemctl list-unit-files | grep "openconnect\|wg-quick\|wireguard\|openvpn\|openfortivpn" | cut -d "." -f1 | ${pkgs.fzf}/bin/fzf --preview 'systemctl status {}')
            if [ $(systemctl is-active $unit) = "inactive" ]; then
              systemctl start $unit
            else
              systemctl stop $unit
            fi
          }

          prompt_dir() {
              prompt_segment blue $CURRENT_FG '%c'
          }

          garbage() {
            ${pkgs.home-manager}/bin/home-manager expire-generations "-0 days"
            run0 --setenv=PATH=$PATH --setenv=LOCALE_ARCHIVE=$LOCALE_ARCHIVE ${garbage}
          }

          sysdiff() {
            echo System package diff:
            ${config.nix.package}/bin/nix store diff-closures $(command ls -d /nix/var/nix/profiles/system-* | tail -2)
          }
        '';
      promptInit =
        ''
          # if [[ "$(hostname)" == "thinkpad" ]]
          # then
          #   cat ${../images/cat.sixel}
          # fi
          eval "$(${pkgs.mcfly}/bin/mcfly init zsh)"
          eval "$(${pkgs.zoxide}/bin/zoxide init zsh)"
        '';
    };
}