nixcfg/modules/home/cli-apps/fish/default.nix

{
  lib,
  config,
  pkgs,
  ...
}:
let
  inherit (lib) mkEnableOption mkIf;

  cfg = config.metacfg.cli-apps.fish;
in
{
  options.metacfg.cli-apps.fish = {
    enable = mkEnableOption "FISH shell";
  };

  config = mkIf cfg.enable {
    programs.fish = {
      enable = true;
      interactiveShellInit = ''
        function msh --wraps mosh --description 'mosh with tmux'
          if not set -q argv[1]
            echo 'Usage: msh [user@]host [command]'
          else
            ${pkgs.mosh}/bin/mosh $argv -- tmux new-session -A -s 0
          end
        end
        function tsh --wraps ssh --description 'ssh with tmux'
          if not set -q argv[1]
            echo 'Usage: tsh [user@]host [command]'
          else
            ${pkgs.openssh}/bin/ssh -t $argv -- tmux new-session -A -s 0
          end
        end
      '';
    };
  };
}