{ lib, stdenv, element-web, ipfs, writeText
, conf ? {}, ipns-key ? "element" }:

let
  element = element-web.override {
    conf = conf;
  };
  ipfs-add-element = writeText "ipfs-add-element" ''
    #!/bin/sh
    set -xe
    ipfs=${ipfs}/bin/ipfs
    element=${element}
    path=/ipfs/$($ipfs add --recursive --quieter --pin=false $element)
    $ipfs name publish --key=${ipns-key} $path
    $ipfs files mkdir -p $(dirname $element)
    $ipfs files cp $path $element
  '';
in stdenv.mkDerivation rec {
  pname = "element-ipfs";
  inherit (element) version;

  buildInputs = [ element ipfs ];

  dontUnpack = true;
  installPhase = ''
    runHook preInstall
    install -m755 -D ${ipfs-add-element} $out/bin/ipfs-add-element
    runHook postInstall
  '';
}