# ABOUTME: Nix flake for PhaseFlow development environment.
# ABOUTME: Provides Node.js 24, pnpm, turbo, lefthook, and Ralph sandbox shell.
{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

  outputs = { nixpkgs, ... }:
    let
      system = "x86_64-linux";
      pkgs = nixpkgs.legacyPackages.${system};

      # Common packages for development
      commonPackages = with pkgs; [
        nodejs_24
        pnpm
        git
      ];
    in {
      devShells.${system} = {
        # Default development shell with all tools
        default = pkgs.mkShell {
          packages = commonPackages ++ (with pkgs; [
            turbo
            lefthook
          ]);

          # For native modules (sharp, better-sqlite3, etc.)
          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [ pkgs.stdenv.cc.cc ];
        };

        # Ralph sandbox shell with minimal permissions
        # Used for autonomous Ralph loop execution
        ralph = pkgs.mkShell {
          packages = commonPackages ++ (with pkgs; [
            # Claude CLI (assumes installed globally or via npm)
            # Add any other tools Ralph needs here
          ]);

          # Restrictive environment for sandboxed execution
          shellHook = ''
            echo "🔒 Ralph Sandbox Environment"
            echo "   Limited to: nodejs, pnpm, git"
            echo ""
          '';

          # For native modules
          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [ pkgs.stdenv.cc.cc ];
        };
      };
    };
}