{ config, lib, pkgs, ... }:
let tide_conf = builtins.readFile ./tide_config.fish; in
{
  programs.zoxide.enableFishIntegration = true;
  programs.kitty.shellIntegration.enableFishIntegration = true;
  programs.fzf = {
    enable = true;
    enableFishIntegration = false;
  };

  programs.starship = {
    enable = true;
    enableFishIntegration = true;
    settings = {
      palettes.thoom = {
        directory_bg = "#3465A4";
        directory_fg = "#E4E4E4";
        git_bg = "#4E9A06";
        git_fg = "#000000";
        prog_bg = "#212736";
        prog_fg = "#769ff0";
        duration_bg = "#C4A000";
        duration_fg = "#000000";
        user_bg = "#394260";
        user_fg = "";
        time_bg = "#D3D7CF";
        time_fg = "#000000";
        prompt_fg = "#00ff00";
        prompt_bg = "none";
      };

      palette = "thoom";

      format = lib.concatStrings [
        "[](fg:directory_bg)"
        "$directory"
        "[](fg:directory_bg bg:git_bg)"
        "$git_branch"
        "$git_status"
        "[](fg:git_bg bg:prog_bg)"
        "$nodejs"
        "$rust"
        "[](fg:prog_bg)"
        "$fill"
        "[](fg:duration_bg bg:none)"
        "$cmd_duration"
        "[](bg:duration_bg fg:user_bg)"
        "$username"
        "$hostname"
        "[](bg:user_bg fg:time_bg)"
        "$time"
        "[](fg:time_bg bg: none)"
        "$line_break"
        "$character"
      ];

      directory = {
        style = "fg:directory_fg bg:directory_bg";
        format = "[ $path( $read_only) ]($style)";
        truncation_length = 5;
        truncation_symbol = "…/";
        substitutions = {
          "Documents" = "󰈙";
          "Downloads" = "󰇚";
        };
      };

      git_branch = {
        symbol = "";
        style = "fg:git_fg bg:git_bg";
        format = "[ $symbol $branch ]($style)";
      };

      git_status = {
        style = "fg:git_fg bg:git_bg";
        format = "[($all_status$ahead_behind )]($style)";
      };

      nodejs = {
        symbol = "";
        style = "bg:prog_bg fg:prog_fg";
        format = "[ $symbol ($version) ]($style)";
      };

      rust = {
        symbol = "";
        style = "fg:prog_fg bg:prog_bg";
        format = "[ $symbol ($version) ]($style)";
      };

      cmd_duration = {
        min_time = 5000; # Show for commands taking > 5 seconds
        style = "bg:duration_bg fg:duration_fg";
        format = "[  took $duration ]($style)";
      };

      username = {
        show_always = false;
        style_user = "bg:user_bg";
        style_root = "bg:user_bg";
        format = "[  $user@]($style)";
        disabled = false;
      };

      hostname = {
        ssh_only = true;
        style = "bg:user_bg";
        format = "[$hostname ]($style)";
        disabled = false;
      };

      time = {
        disabled = false;
        time_format = "%r";
        style = "fg:time_fg bg:time_bg";
        format = "[  $time ]($style)";
      };
    };
  };

  programs.fish = {
    enable = true;

    plugins = [
      {
        # https://github.com/lilyball/nix-env.fish
        name = "nix-env";
        src = pkgs.fetchFromGitHub {
          owner = "lilyball";
          repo = "nix-env.fish";
          rev = "7b65bd228429e852c8fdfa07601159130a818cfa";
          sha256 = "sha256-RG/0rfhgq6aEKNZ0XwIqOaZ6K5S4+/Y5EEMnIdtfPhk=";
        };

      }
      {
        # https://github.com/PatrickF1/fzf.fish
        name = "fzf";
        src = pkgs.fishPlugins.fzf-fish.src;
      }
    ];

    shellInit = ''
      # Undo stupid home-manager behavior of refusing to let the init file be re-sourced
      set -e __fish_home_manager_config_sourced

      set --universal fish_greeting
      set -g -x EDITOR "emacsclient -a \"emacs -nw\""
      set -g -x ALTERNATE_EDITOR "vim"
      set -g -x TERMINAL "kitty"
      set -g -x LESS "--ignore-case --QUIET --RAW-CONTROL-CHARS"
      set -g -x MANPAGER "sh -c 'col -bx | bat -l man -p'"
      set -g -x MANROFFOPT "-c"
      set -g -x BAT_THEME "ansi"

      fish_add_path --path ~/.dotfiles/bin ~/.local/bin ~/bin

      # If running under kitty, fake the term for ssh to avoid
      # having to install terminfo on remote machine
      function ssh --wraps ssh
        if test $TERM = xterm-kitty
          set --function --export TERM xterm-256color
        end
        command ssh $argv
      end

      if test -f $HOME/.cargo/env.fish
        source "$HOME/.cargo/env.fish"
      end

      if test -f $HOME/.local.fish
        source $HOME/.local.fish
      end
      '';

    shellAliases = {
      ec = "emacsclient -n --alternate-editor=\"emacs -nw\"";
      src = "source $HOME/.config/fish/config.fish";
      pubip = "curl icanhazip.com";
    };
  };
}