nix/programs/fish.nix

{ pkgs, ... }:
{
  environment.systemPackages = [ pkgs.fish ];
  programs.fish.enable = true;
  users.users.krizej.shell = pkgs.fish;

  programs.fish.promptInit = ''
    ${pkgs.any-nix-shell}/bin/any-nix-shell fish --info-right | source
  '';

  home-manager.users.krizej.programs.fish = {
    enable = true;

    shellAliases = {
      "ls" = "eza -lhs type";
      "cp" = "cp -v";
      "mv" = "mv -v";
      "ytmp3" = "yt-dlp -o '%(title)s.%(ext)s' -x --audio-format mp3";
      "myip" = "curl ifconfig.me";
    };

    shellAbbrs = {
      "2clip" = "xclip -selection clipboard";
    };

    functions = {
      "fish_greeting" = "fortune";
      "fish_prompt" = ''
        # name: Informative Vcs
        # author: Mariusz Smykula <mariuszs at gmail.com>

        # function fish_prompt --description 'Write out the prompt'
            set -l last_pipestatus $pipestatus
            set -lx __fish_last_status $status # Export for __fish_print_pipestatus.

            if not set -q __fish_git_prompt_show_informative_status
                set -g __fish_git_prompt_show_informative_status 1
            end
            if not set -q __fish_git_prompt_hide_untrackedfiles
                set -g __fish_git_prompt_hide_untrackedfiles 1
            end
            if not set -q __fish_git_prompt_color_branch
                set -g __fish_git_prompt_color_branch magenta --bold
            end
            if not set -q __fish_git_prompt_showupstream
                set -g __fish_git_prompt_showupstream informative
            end
            if not set -q __fish_git_prompt_color_dirtystate
                set -g __fish_git_prompt_color_dirtystate blue
            end
            if not set -q __fish_git_prompt_color_stagedstate
                set -g __fish_git_prompt_color_stagedstate yellow
            end
            if not set -q __fish_git_prompt_color_invalidstate
                set -g __fish_git_prompt_color_invalidstate red
            end
            if not set -q __fish_git_prompt_color_untrackedfiles
                set -g __fish_git_prompt_color_untrackedfiles $fish_color_normal
            end
            if not set -q __fish_git_prompt_color_cleanstate
                set -g __fish_git_prompt_color_cleanstate green --bold
            end

            set -l color_cwd
            set -l suffix
            if functions -q fish_is_root_user; and fish_is_root_user
                if set -q fish_color_cwd_root
                    set color_cwd $fish_color_cwd_root
                else
                    set color_cwd $fish_color_cwd
                end
                set suffix '#'
            else
                set color_cwd $fish_color_cwd
                set suffix '$'
            end

            # PWD
            set_color $color_cwd
            echo -n (prompt_pwd)
            set_color normal

            printf '%s ' (fish_vcs_prompt)

            set -l status_color (set_color $fish_color_status)
            set -l statusb_color (set_color --bold $fish_color_status)
            set -l prompt_status (__fish_print_pipestatus "[" "]" "|" "$status_color" "$statusb_color" $last_pipestatus)
            echo -n $prompt_status
            set_color normal

            echo -n "$suffix "
        # end
      '';
    };
  };
}