{ pkgs, blog-source, web-files, katex-html, resume }:

with pkgs;
with lib;

let
  protocol = ssl: if ssl then "https://" else "http://";
  gems = bundlerEnv {
    inherit ruby;

    name = "blog-static-flake";
    gemfile = "${blog-source}/Gemfile";
    lockfile = "${blog-source}/Gemfile.lock";
    gemset = ./gemset.nix;
  };

  website = settings: stdenv.mkDerivation {
    inherit (settings) src ssl host;
    inherit resume gems ruby;
    name = "blog-static";
    version = settings.src.rev or "dirty";
    publicPath = settings.path;
    hugoFlags = concatStringsSep " " (
      optionals settings.drafts (singleton "-D") ++
      [ "--baseURL=${protocol settings.ssl + settings.host}" ]
    );
    builder = ./build/builder.sh;
    webFiles = web-files;
    buildInputs = [
      hugo ruby stork katex-html (agda.withPackages [ agdaPackages.standard-library ])
    ];
  };
in
  {
    english = settings: website {
      inherit (settings) host;
      ssl = settings.ssl or false;
      drafts = settings.drafts or false;
      src = blog-source;
      path = ".";
    };
    virtualHostFor = package:
      {
        "${package.host}" = mkMerge [
          {
            root = package;
          }
          (mkIf (package.ssl) {
            forceSSL = true;
            enableACME = true;
          })
        ];
      };
  }