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

  desc "Process Control System"
  homepage "http://supervisord.org/"
  url "https://github.com/Supervisor/supervisor/archive/4.2.1.tar.gz"
  sha256 "9e930f1e85dfa2ab0a27e2b2b9843750f9898e3f91561bf396db4211a678ca2e"

  bottle do
    cellar :any_skip_relocation
    sha256 "0da8c958cc4f603b4dd4562125919cb9b616a2b211aceb7260f7f013fc256553" => :big_sur
    sha256 "87635be28d3a1a9590d6f89474f505c0085ca5d75af0a82b130ac56a53532c44" => :catalina
    sha256 "c2a329eb52bb400fa004599f68c07db197714b60c0d184d06ba3440d597ed2b2" => :mojave
  end

  depends_on "python@3.9"

  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.conf"
  end

  def post_install
    (var/"run").mkpath
    (var/"log").mkpath
    conf_warn = <<~EOS
      The default location for supervisor's config file is now:
        #{etc}/supervisord.conf
      Please move your config file to this location and restart supervisor.
    EOS
    old_conf = etc/"supervisord.ini"
    opoo conf_warn if old_conf.exist?
  end

  plist_options manual: "supervisord"

  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.conf</string>
            <string>--nodaemon</string>
          </array>
        </dict>
      </plist>
    EOS
  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
