class Teku < Formula
  desc "Java Implementation of the Ethereum 2.0 Beacon Chain"
  homepage "https://docs.teku.consensys.net/"
  url "https://github.com/ConsenSys/teku.git",
        tag:      "22.11.0",
        revision: "a3aacebe93d6d41e39fd2f6a4732d35cc3cc9940"
  license "Apache-2.0"

  bottle do
    sha256 cellar: :any_skip_relocation, all: "ca2d21eb0f3ea9e5d8c50203684a52d2a20569004607e110d884153fb9f8a2fa"
  end

  depends_on "gradle" => :build
  depends_on "openjdk"

  def install
    system "gradle", "installDist"

    libexec.install Dir["build/install/teku/*"]

    (bin/"teku").write_env_script libexec/"bin/teku", Language::Java.overridable_java_home_env
  end

  test do
    assert_match "teku/", shell_output("#{bin}/teku --version")

    rest_port = free_port
    fork do
      exec bin/"teku", "--rest-api-enabled", "--rest-api-port=#{rest_port}", "--p2p-enabled=false", "--ee-endpoint=http://127.0.0.1"
    end
    sleep 15

    output = shell_output("curl -sS -XGET http://127.0.0.1:#{rest_port}/eth/v1/node/syncing")
    assert_match "is_syncing", output
  end
end