nixos/stevenblack: rework to use distinct package outputs

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

{

  config,

  lib,

  pkgs,

  ...

}:

let

  inherit (lib) optionals mkOption mkEnableOption types mkIf elem concatStringsSep maintainers;

  cfg = config.networking.stevenblack;

  inherit (lib)

    getOutput

    maintainers

    mkEnableOption

    mkIf

    mkOption

    mkPackageOption

    types

    ;

  # needs to be in a specific order

  activatedHosts = with cfg; [ ]

    ++ optionals (elem "fakenews" block) [ "fakenews" ]

    ++ optionals (elem "gambling" block) [ "gambling" ]

    ++ optionals (elem "porn" block) [ "porn" ]

    ++ optionals (elem "social" block) [ "social" ];

  hostsPath = "${pkgs.stevenblack-blocklist}/alternates/" + concatStringsSep "-" activatedHosts + "/hosts";

  cfg = config.networking.stevenblack;

in

{

  options.networking.stevenblack = {

    enable = mkEnableOption "the stevenblack hosts file blocklist";

    package = mkPackageOption pkgs "stevenblack-blocklist" { };

    block = mkOption {

      type = types.listOf (types.enum [ "fakenews" "gambling" "porn" "social" ]);

      type = types.listOf (

        types.enum [

          "fakenews"

          "gambling"

          "porn"

          "social"

        ]

      );

      default = [ ];

      description = "Additional blocklist extensions.";

    };

  };

  config = mkIf cfg.enable {

    networking.hostFiles = [ ]

      ++ optionals (activatedHosts != [ ]) [ hostsPath ]

      ++ optionals (activatedHosts == [ ]) [ "${pkgs.stevenblack-blocklist}/hosts" ];

    networking.hostFiles = map (x: "${getOutput x cfg.package}/hosts") ([ "ads" ] ++ cfg.block);

  };

  meta.maintainers = [ maintainers.moni maintainers.artturin ];

  meta.maintainers = with maintainers; [

    moni

    artturin

    frontear

  ];

}