{ pkgs ? import <nixpkgs> { } }:

pkgs.tree-sitter.buildGrammar {
  src = ./.;
  version = "0.2.0";
  language = "nix-shell";
  generate = true;
  location = "tree-sitter-nix-shell";

  nativeCheckInputs = with pkgs; [ htmlq ];
  checkPhase = ''
    runHook preCheck
    (cd ..; make test)
    runHook postCheck
  '';
  doCheck = true;

  nativeInstallCheckInputs = with pkgs; [ tree ];
  installCheckPhase = ''
    runHook preInstallCheck

    # make sure that all files i expect to be installed are actually installed
    (test -x $out/parser && test -f $out/queries/highlights.scm && test -f $out/queries/injections.scm) || \
      (tree $out; echo "expected output to contain /parser and /queries/"; false)

    runHook postInstallCheck
  '';
  doInstallCheck = true;
}