# A Wasmtime wrapper that provides our desired configuration.
{ wasmtime
, makeWrapper
, symlinkJoin
, formats
, extraSettings ? {}
}:

let
  config = {
    wasm.gc = true;
  };
  config-file =
    (formats.toml {}).generate
      "gyehoek-wasmtime.toml"
      (config // extraSettings);
in symlinkJoin {
  name = "gyehoek-wasmtime";
  inherit (wasmtime) version;
  paths = [ wasmtime ];
  nativeBuildInputs = [ makeWrapper ];
  postBuild = ''
    wrapProgram $out/bin/wasmtime \
      --add-flags "--config ${config-file}"
  '';
}