{ pkgs ? import <nixpkgs> {} }:

let
  codegraph = pkgs.stdenv.mkDerivation {
    pname = "codegraph";
    version = "1.0.1";

    src = pkgs.fetchurl {
      url = "https://github.com/colbymchenry/codegraph/releases/download/v1.0.1/codegraph-linux-x64.tar.gz";
      sha256 = "d45a068f44596a85c7ba7d0ef924eaf7103fbbf3cafbeb668127daff60a52228";
    };

    sourceRoot = "codegraph-linux-x64";

    nativeBuildInputs = [ pkgs.autoPatchelfHook ];

    buildInputs = with pkgs; [
      stdenv.cc.cc
      zlib
      openssl
    ];

    installPhase = ''
      mkdir -p $out/bin
      cp -r . $out/
      chmod +x $out/node $out/bin/codegraph
    '';

    meta = {
      description = "Code understanding and indexing tool for AI coding agents";
      homepage = "https://github.com/colbymchenry/codegraph";
      license = pkgs.lib.licenses.mit;
      platforms = [ "x86_64-linux" ];
    };
  };
in

pkgs.mkShell {
  packages = with pkgs; [
    opencode
    python3
    codegraph
    sdl3
    nodejs
  ];

  shellHook = ''
    echo "━━━ development shell ━━━"
    echo "  opencode  $(opencode --version 2>&1 || true)"
    echo "  codegraph $(codegraph --version 2>&1 || true)"
    echo "  python    $(python --version 2>&1 || true)"
    echo "  nodejs      $(node --version 2>&1 || true)"
  '';
}