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

with lib;

let

  cfg = config.programs.wezterm;

in {
  options.programs.wezterm = {
    enable = mkEnableOption "wezterm";

    package = mkOption {
      type = types.package;
      default = pkgs.wezterm;
      defaultText = literalExpression "pkgs.wezterm";
      description = "The Wezterm package to install.";
    };

    extraConfig = mkOption {
      type = types.lines;
      default = ''
        return {}
      '';
      example = literalExpression ''
        -- Your lua code / config here
        local mylib = require 'mylib';
        return {
          usemylib = mylib.do_fun();
          font = wezterm.font("JetBrains Mono"),
          font_size = 16.0,
          color_scheme = "Tomorrow Night",
          hide_tab_bar_if_only_one_tab = true,
          default_prog = { "zsh", "--login", "-c", "tmux attach -t dev || tmux new -s dev" },
          keys = {
            {key="n", mods="SHIFT|CTRL", action="ToggleFullScreen"},
          }
        }
      '';
      description = ''
        Extra configuration written to
        <filename>$XDG_CONFIG_HOME/wezterm/wezterm.lua</filename>. See
        <link xlink:href="https://wezfurlong.org/wezterm/config/files.html"/>
        how to configure.
      '';
    };
  };

  config = mkIf cfg.enable {
    home.packages = [ cfg.package ];

    xdg.configFile."wezterm/wezterm.lua" = {
      text = ''
        -- Generated by Home Manager.
        -- See https://wezfurlong.org/wezterm/

        -- Add config folder to watchlist for config reloads.
        local wezterm = require 'wezterm';
        wezterm.add_to_config_reload_watch_list(wezterm.config_dir)

        ${cfg.extraConfig}
      '';
    };
  };
}