{ pkgs }:

let
  stylesheetHash = builtins.substring 0 12 (builtins.hashFile "sha256" ../site/styles.css);
  stylesheetFileName = "styles-${stylesheetHash}.css";
in

pkgs.stdenvNoCC.mkDerivation {
  pname = "tide-landing-page";
  version = "1.0.0";
  src = ../site;

  dontBuild = true;

  installPhase = ''
    runHook preInstall

    mkdir -p "$out"
    cp -R . "$out"
    mv "$out/styles.css" "$out/${stylesheetFileName}"
    substituteInPlace "$out/index.html" \
      --replace-fail \
      'href="/styles.css"' \
      'href="/${stylesheetFileName}"'

    runHook postInstall
  '';
}