# Homebrew formula for I2P Python Router
# Install: brew install --build-from-source i2p-python.rb
# Service: brew services start i2p-python

class I2pPython < Formula
  include Language::Python::Virtualenv

  desc "I2P anonymous overlay network router — Python implementation"
  homepage "https://geti2p.net/"
  # TODO: Update URL and sha256 when published to PyPI
  url "https://files.pythonhosted.org/packages/source/i/i2p-python/i2p_python-0.1.0.tar.gz"
  sha256 "PLACEHOLDER_SHA256"
  license "MIT"

  depends_on "python@3.12"
  depends_on "openssl@3"
  depends_on "libsodium"
  depends_on "libffi"
  depends_on "rust" => :build

  # TODO: Generate resource blocks with:
  #   brew update-python-resources i2p-python
  # Each transitive PyPI dependency needs a resource block.

  def install
    ENV["SODIUM_INSTALL"] = "system"
    ENV["OPENSSL_DIR"] = Formula["openssl@3"].opt_prefix

    virtualenv_install_with_resources

    # Ensure CLI commands are linked
    %w[i2p-router i2p-sam i2p-tunnel].each do |cmd|
      (bin/cmd).write_env_script(
        libexec/"bin"/cmd,
        PATH: "#{Formula["openssl@3"].opt_bin}:${PATH}"
      )
    end
  end

  service do
    run [opt_bin/"i2p-router", "--data-dir", var/"lib/i2p-python", "--log-level", "INFO"]
    keep_alive true
    log_path var/"log/i2p-router.log"
    error_log_path var/"log/i2p-router-error.log"
    working_dir var/"lib/i2p-python"
    environment_variables PATH: std_service_path_env
  end

  def post_install
    (var/"lib/i2p-python").mkpath
    (var/"log").mkpath
  end

  test do
    assert_match "I2P Python Router", shell_output("#{bin}/i2p-router --help")
    assert_match "i2p-sam", shell_output("#{bin}/i2p-sam --help")
    assert_match "i2p-tunnel", shell_output("#{bin}/i2p-tunnel --help")
  end
end