default.nix

{ pkgs ? import <nixpkgs> {} }:

let
  # Detect system architecture
  system = pkgs.stdenv.hostPlatform.system;

  # Map Nix system to cursor-agent naming
  osArch = {
    "x86_64-linux" = { os = "linux"; arch = "x64"; };
    "aarch64-linux" = { os = "linux"; arch = "arm64"; };
    "x86_64-darwin" = { os = "darwin"; arch = "x64"; };
    "aarch64-darwin" = { os = "darwin"; arch = "arm64"; };
  }.${system} or (throw "Unsupported system: ${system}");

  version = "2025.10.02-bd871ac";

  # Download and extract the cursor-agent package
  cursor-agent-package = pkgs.stdenv.mkDerivation {
    pname = "cursor-agent-package";
    inherit version;

    src = pkgs.fetchurl {
      url = "https://downloads.cursor.com/lab/${version}/${osArch.os}/${osArch.arch}/agent-cli-package.tar.gz";
      sha256 = "sha256-tqppTOkeChlyw3IjSkhGpNvMX9U5s2hiu13/RWakENg=";
    };

    sourceRoot = ".";

    installPhase = ''
      mkdir -p $out
      cp -r * $out/
    '';
  };

in pkgs.buildFHSUserEnv {
  name = "cursor-agent";

  targetPkgs = pkgs: [
    pkgs.stdenv.cc.cc.lib
  ];

  runScript = pkgs.writeShellScript "cursor-agent-wrapper" ''
    exec ${cursor-agent-package}/dist-package/node ${cursor-agent-package}/dist-package/index.js "$@"
  '';

  meta = with pkgs.lib; {
    description = "Cursor Agent CLI - AI-powered coding assistant";
    homepage = "https://cursor.com";
    platforms = [ "x86_64-linux" "aarch64-linux" ];
  };
}