{pkgs ? import <nixpkgs> {}}:
with pkgs; let
  ghc = haskellPackages.ghcWithPackages (ps:
    with ps; [
      lens-aeson
      wreq
      sqlite-simple
      PyF
      optparse-applicative
    ]);
in
  stdenv.mkDerivation {
    name = "mavedb-scraper";
    src = ./src;

    buildInputs = [ghc];

    buildPhase = ''
      ghc -o scrape *.hs -O -rtsopts -threaded
    '';

    installPhase = "install -Dm755 ./scrape $out/bin/mavedb-scraper";
  }