{ stdenv, fetchurl, fetchgit, python3, python3Packages, makeWrapper, lib }:

let
  django_1_11 = pyPkgs: pyPkgs.django_1_11;
  python = python3.override {
    packageOverrides = self: super: {
      django = django_1_11 super;
      # we use some dependencies that are outside of nixpkgs
      django-flat-responsive = self.callPackage ./python-modules/django-flat-responsive.nix { };
      django-hstore = self.callPackage ./python-modules/django-hstore.nix { };
      django-markdown2 = self.callPackage ./python-modules/django-markdown2.nix { };
      django-select2 = self.callPackage ./python-modules/django-select2.nix { };
      django-tree = self.callPackage ./python-modules/django-tree.nix { };
      django-restframework-hstore = self.callPackage ./python-modules/django-restframework-hstore.nix { };
      social-auth-app-django = self.callPackage ./python-modules/social-auth-app-django.nix { };
      social-auth-core = self.callPackage ./python-modules/social-auth-core.nix { };
    };
  };
in
stdenv.mkDerivation rec {
  name = "spejstore";

  src = ./.;
  nativeBuildInputs = [ makeWrapper ];

  runtimePackages = with python.pkgs; [
    certifi chardet django djangorestframework pillow psycopg2 requests urllib3 django_appconf setuptools
    django-tree django-flat-responsive django-hstore django-select2 social-auth-app-django django-markdown2 django-restframework-hstore
  ];

  pythonEnv = python.withPackages (_: runtimePackages);
  passthru = {
    inherit python runtimePackages;
  };

  unpackPhase = ''
    srcDir=$out/share/spejstore
    mkdir -p $srcDir
    cp -r --no-preserve=mode -t $srcDir $src/{manage.py,auth,spejstore,storage,static,templates}
  '';

  installPhase = ''
    ${python.interpreter} -m compileall $srcDir
    makeWrapper $pythonEnv/bin/python $out/bin/spejstore \
      --add-flags $out/share/spejstore/manage.py

    $out/bin/spejstore collectstatic
  '';
}