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

  desc "Process Control System"
  homepage "http://supervisord.org/"
  url "https://github.com/Supervisor/supervisor/archive/3.3.4.tar.gz"
  sha256 "d6456e784a54d90b11bacd95d18382e336aa9786f33c91830a0941df4748ed02"

  bottle do
    cellar :any_skip_relocation
    sha256 "de602ba5a4d850c369a1cb9f7275044babd776b21aed0d028e87b68e68dba2b4" => :high_sierra
    sha256 "432c2afe07eecfb03c4b8268caa0898b68cd7af5bf6364ae71d054e805842905" => :sierra
    sha256 "dfae5fc72acbfe08f53222ee70fa34259c29a46927272f1af8512c010acf02df" => :el_capitan
  end

  depends_on "python@2" if MacOS.version <= :snow_leopard

  resource "meld3" do
    url "https://files.pythonhosted.org/packages/45/a0/317c6422b26c12fe0161e936fc35f36552069ba8e6f7ecbd99bbffe32a5f/meld3-1.0.2.tar.gz"
    sha256 "f7b754a0fde7a4429b2ebe49409db240b5699385a572501bb0d5627d299f9558"
  end

  def install
    inreplace buildpath/"supervisor/skel/sample.conf" do |s|
      s.gsub! %r{/tmp/supervisor\.sock}, var/"run/supervisor.sock"
      s.gsub! %r{/tmp/supervisord\.log}, var/"log/supervisord.log"
      s.gsub! %r{/tmp/supervisord\.pid}, var/"run/supervisord.pid"
      s.gsub! /^;\[include\]$/, "[include]"
      s.gsub! %r{^;files = relative/directory/\*\.ini$}, "files = #{etc}/supervisor.d/*.ini"
    end

    virtualenv_install_with_resources

    etc.install buildpath/"supervisor/skel/sample.conf" => "supervisord.ini"
  end

  plist_options :manual => "supervisord -c #{HOMEBREW_PREFIX}/etc/supervisord.ini"

  def plist
    <<~EOS
      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
      <plist version="1.0">
        <dict>
          <key>KeepAlive</key>
          <dict>
            <key>SuccessfulExit</key>
            <false/>
          </dict>
          <key>Label</key>
          <string>#{plist_name}</string>
          <key>ProgramArguments</key>
          <array>
            <string>#{opt_bin}/supervisord</string>
            <string>-c</string>
            <string>#{etc}/supervisord.ini</string>
            <string>--nodaemon</string>
          </array>
        </dict>
      </plist>
    EOS
  end

  def post_install
    (var/"run").mkpath
    (var/"log").mkpath
  end

  test do
    (testpath/"sd.ini").write <<~EOS
      [unix_http_server]
      file=supervisor.sock

      [supervisord]
      loglevel=debug

      [rpcinterface:supervisor]
      supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

      [supervisorctl]
      serverurl=unix://supervisor.sock
    EOS

    begin
      pid = fork { exec bin/"supervisord", "--nodaemon", "-c", "sd.ini" }
      sleep 1
      output = shell_output("#{bin}/supervisorctl -c sd.ini version")
      assert_match version.to_s, output
    ensure
      Process.kill "TERM", pid
    end
  end
end
