{ stdenv, fetchFromGitLab, pkgs, lib, nodejs-14_x, pkg-config
, libjpeg, pixman, cairo, pango, which, postgresql }:

let
  nodejs = nodejs-14_x;

  version = "0.1.2";

  src = fetchFromGitLab {
    owner = "cocainefarm";
    repo = "mx-puppet-slack";
    rev = "e4b51ed";
    hash = "sha256-y2q3m5E6FuYSwn691SfFlwoFqkVolXl4esgiuVYHNOA=";
  };

  myNodePackages = import ./node-composition.nix {
    inherit pkgs nodejs;
    inherit (stdenv.hostPlatform) system;
  };

in myNodePackages.package.override {
  inherit version src;

  nativeBuildInputs = [ nodejs.pkgs.node-pre-gyp nodejs.pkgs.node-gyp-build pkg-config which ];
  buildInputs = [ libjpeg pixman cairo pango postgresql ];

  postRebuild = ''
    # Build typescript stuff
    npm run build
  '';

  postInstall = ''
    # Make an executable to run the server
    mkdir -p $out/bin
    cat <<EOF > $out/bin/mx-puppet-slack
    #!/bin/sh
    exec ${nodejs}/bin/node $out/lib/node_modules/@mx-puppet/mx-puppet-slack/build/index.js "\$@"
    EOF
    chmod +x $out/bin/mx-puppet-slack
  '';

  meta = with lib; {
    description = "A slack puppeting bridge for matrix";
    license = licenses.asl20;
    homepage = "https://gitlab.com/mx-puppet/slack/mx-puppet-slack";
    maintainers = with maintainers; [ ];
    platforms = platforms.unix;
  };
}