class Pact::MockService::ControlServer::Run

def self.call options
  new(options).call
end

def call
  trap(:INT) { shutdown }
  trap(:TERM) { shutdown }
  # https://github.com/rack/rack/blob/ae78184e5c1fcf4ac133171ed4b47b0548cd9b44/lib/rack/handler/webrick.rb#L32
  # Rack adapter for webrick uses class variable for the server which contains the port,
  # so if we use it more than once in the same process, we lose the reference to the first
  # server, and can't shut it down. So, keep a manual reference to the Webrick server, and
  # shut it down directly rather than use Rack::Handler::WEBrick.shutdown
  # Ruby!
  Rack::Handler::WEBrick.run(control_server, **webbrick_opts) do | server |
    @webrick_server = server
  end
end

def control_server
  @control_server ||= Pact::MockService::ControlServer::App.new control_server_options
end

def control_server_options
  {
    log_dir: options[:log_dir] || "log",
    pact_dir: options[:pact_dir] || ".",
    unique_pact_file_names: options[:unique_pact_file_names],
    cors_enabled: options[:cors] || false,
    ssl: options[:ssl],
    host: options[:host],
    pact_specification_version: options[:pact_specification_version]
  }
end

def initialize options
  @options = options
end

def shutdown
  unless @shutting_down
    @shutting_down = true
    begin
      @control_server.shutdown
    ensure
      @webrick_server.shutdown
    end
  end
end

def webbrick_opts
  {
    :Port => options[:port],
    :Host => options[:host],
    :AccessLog => []
  }
end