nixos-config/lib/fetchers/fetch-internet-archive/default.nix

{ stdenvNoCC, lib, fetchzip, fetchurl, curl }:

{
  id,
  file ? "",
  formats ? [ ],
  hash ? "",
  name ? "internet-archive-${id}",
}@args:

let
  isFormatIndiciated = formats != [ ];
  url =
    if isFormatIndiciated
    then "https://archive.org/compress/${lib.escapeURL id}/formats=${lib.concatStringsSep "," formats}"
    else "https://archive.org/download/${lib.escapeURL id}/${lib.escapeURL file}";

    args' = lib.removeAttrs args [ "id" "file" "formats" ] // {
      inherit url hash name;
    };

  fetcher =
    if isFormatIndiciated
    then fetchzip
    else fetchurl;
in
  fetcher args'