class Wangle < Formula
  desc "Modular, composable client/server abstractions framework"
  homepage "https://github.com/facebook/wangle"
  url "https://github.com/facebook/wangle/releases/download/v2022.02.14.00/wangle-v2022.02.14.00.tar.gz"
  sha256 "edf14f80c859c0e598c842667773ee589249f7082d8a7265ab08ba91970a1f15"
  license "Apache-2.0"
  head "https://github.com/facebook/wangle.git", branch: "master"

  bottle do
    sha256 cellar: :any,                 arm64_monterey: "49c7a4ea1d4294a9a6454f042694a3d450467dd847cc8ee9f5d6f280df555cad"
    sha256 cellar: :any,                 arm64_big_sur:  "4f69994ea6419f8e198dace2509ed2e6455c5cbf4633b083d946fbe78f212753"
    sha256 cellar: :any,                 monterey:       "3b207f80eda943e2eeafd0f66939cddb9ada5ac528c2866eabc01019af0651dd"
    sha256 cellar: :any,                 big_sur:        "41c40adfd881a4c7cf65c9fdbb815d65603277347406ed1c3f9ac0939c7805ec"
    sha256 cellar: :any,                 catalina:       "8e8518669f99b74535042c87fcaeeaab843f0f58f0a1f55fb711873e30dea96f"
    sha256 cellar: :any_skip_relocation, x86_64_linux:   "9dcab97233fec494133b67299718d79642af5f7154a83205bb00ca342d8afdc4"
  end

  depends_on "cmake" => :build
  depends_on "boost"
  depends_on "double-conversion"
  depends_on "fizz"
  depends_on "fmt"
  depends_on "folly"
  depends_on "gflags"
  depends_on "glog"
  depends_on "libevent"
  depends_on "libsodium"
  depends_on "lz4"
  depends_on "openssl@1.1"
  depends_on "snappy"
  depends_on "zstd"

  uses_from_macos "bzip2"
  uses_from_macos "zlib"

  on_linux do
    depends_on "gcc"
  end

  fails_with gcc: "5"

  def install
    cd "wangle" do
      system "cmake", ".", "-DBUILD_TESTS=OFF", "-DBUILD_SHARED_LIBS=ON", *std_cmake_args
      system "make", "install"
      system "make", "clean"
      system "cmake", ".", "-DBUILD_TESTS=OFF", "-DBUILD_SHARED_LIBS=OFF", *std_cmake_args
      system "make"
      lib.install "lib/libwangle.a"

      pkgshare.install Dir["example/echo/*.cpp"]
    end
  end

  test do
    cxx_flags = %W[
      -std=c++14
      -I#{include}
      -I#{Formula["openssl@1.1"].opt_include}
      -L#{Formula["gflags"].opt_lib}
      -L#{Formula["glog"].opt_lib}
      -L#{Formula["folly"].opt_lib}
      -L#{Formula["fizz"].opt_lib}
      -L#{lib}
      -lgflags
      -lglog
      -lfolly
      -lfizz
      -lwangle
    ]
    on_linux do
      cxx_flags << "-L#{Formula["boost"].opt_lib}"
      cxx_flags << "-lboost_context-mt"
      cxx_flags << "-ldl"
      cxx_flags << "-lpthread"
    end

    system ENV.cxx, pkgshare/"EchoClient.cpp", *cxx_flags, "-o", "EchoClient"
    system ENV.cxx, pkgshare/"EchoServer.cpp", *cxx_flags, "-o", "EchoServer"

    port = free_port
    ohai "Starting EchoServer on port #{port}"
    fork { exec testpath/"EchoServer", "-port", port.to_s }
    sleep 10

    require "pty"
    output = ""
    PTY.spawn(testpath/"EchoClient", "-port", port.to_s) do |r, w, pid|
      ohai "Sending data via EchoClient"
      w.write "Hello from Homebrew!\nAnother test line.\n"
      sleep 20
      Process.kill "TERM", pid
      begin
        ohai "Reading received data"
        r.each_line { |line| output += line }
      rescue Errno::EIO
        # GNU/Linux raises EIO when read is done on closed pty
      end
    end
    assert_match("Hello from Homebrew!", output)
    assert_match("Another test line.", output)
  end
end