class Puma::CLI

def configure_control_url(command_line_arg)
  if command_line_arg
    @control_url = command_line_arg
  elsif Puma.jruby?
    unsupported "No default url available on JRuby"
  end
end

def initialize(argv, log_writer = LogWriter.stdio, events = Events.new)
  @debug = false
  @argv = argv.dup
  @log_writer = log_writer
  @events = events
  @conf = nil
  @stdout = nil
  @stderr = nil
  @append = false
  @control_url = nil
  @control_options = {}
  setup_options
  begin
    @parser.parse! @argv
    if file = @argv.shift
      @conf.configure do |user_config, file_config|
        file_config.rackup file
      end
    end
  rescue UnsupportedOption
    exit 1
  end
  @conf.configure do |user_config, file_config|
    if @stdout || @stderr
      user_config.stdout_redirect @stdout, @stderr, @append
    end
    if @control_url
      user_config.activate_control_app @control_url, @control_options
    end
  end
  @launcher = Puma::Launcher.new(@conf, :log_writer => @log_writer, :events => @events, :argv => argv)
end

def run
  @launcher.run
end

def setup_options
  @conf = Configuration.new({}, {events: @events}) do |user_config, file_config|
    @parser = OptionParser.new do |o|
      o.on "-b", "--bind URI", "URI to bind to (tcp://, unix://, ssl://)" do |arg|
        user_config.bind arg
      end
      o.on "--bind-to-activated-sockets [only]", "Bind to all activated sockets" do |arg|
        user_config.bind_to_activated_sockets(arg || true)
      end
      o.on "-C", "--config PATH", "Load PATH as a config file" do |arg|
        file_config.load arg
      end
      # Identical to supplying --config "-", but more semantic
      o.on "--no-config", "Prevent Puma from searching for a config file" do |arg|
        file_config.load "-"
      end
      o.on "--control-url URL", "The bind url to use for the control server. Use 'auto' to use temp unix server" do |arg|
        configure_control_url(arg)
      end
      o.on "--control-token TOKEN",
        "The token to use as authentication for the control server" do |arg|
        @control_options[:auth_token] = arg
      end
      o.on "--debug", "Log lowlevel debugging information" do
        user_config.debug
      end
      o.on "--dir DIR", "Change to DIR before starting" do |d|
        user_config.directory d
      end
      o.on "-e", "--environment ENVIRONMENT",
        "The environment to run the Rack app on (default development)" do |arg|
        user_config.environment arg
      end
      o.on "-f", "--fork-worker=[REQUESTS]", OptionParser::DecimalInteger,
        "Fork new workers from existing worker. Cluster mode only",
        "Auto-refork after REQUESTS (default 1000)" do |*args|
        user_config.fork_worker(*args.compact)
      end
      o.on "-I", "--include PATH", "Specify $LOAD_PATH directories" do |arg|
        $LOAD_PATH.unshift(*arg.split(':'))
      end
      o.on "-p", "--port PORT", "Define the TCP port to bind to",
        "Use -b for more advanced options" do |arg|
        user_config.bind "tcp://#{Configuration::DEFAULTS[:tcp_host]}:#{arg}"
      end
      o.on "--pidfile PATH", "Use PATH as a pidfile" do |arg|
        user_config.pidfile arg
      end
      o.on "--preload", "Preload the app. Cluster mode only" do
        user_config.preload_app!
      end
      o.on "--prune-bundler", "Prune out the bundler env if possible" do
        user_config.prune_bundler
      end
      o.on "--extra-runtime-dependencies GEM1,GEM2", "Defines any extra needed gems when using --prune-bundler" do |arg|
        user_config.extra_runtime_dependencies arg.split(',')
      end
      o.on "-q", "--quiet", "Do not log requests internally (default true)" do
        user_config.quiet
      end
      o.on "-v", "--log-requests", "Log requests as they occur" do
        user_config.log_requests
      end
      o.on "-R", "--restart-cmd CMD",
        "The puma command to run during a hot restart",
        "Default: inferred" do |cmd|
        user_config.restart_command cmd
      end
      o.on "-s", "--silent", "Do not log prompt messages other than errors" do
        @log_writer = LogWriter.new(NullIO.new, $stderr)
      end
      o.on "-S", "--state PATH", "Where to store the state details" do |arg|
        user_config.state_path arg
      end
      o.on '-t', '--threads INT', "min:max threads to use (default 0:16)" do |arg|
        min, max = arg.split(":")
        if max
          user_config.threads min, max
        else
          user_config.threads min, min
        end
      end
      o.on "--early-hints", "Enable early hints support" do
        user_config.early_hints
      end
      o.on "-V", "--version", "Print the version information" do
        puts "puma version #{Puma::Const::VERSION}"
        exit 0
      end
      o.on "-w", "--workers COUNT",
        "Activate cluster mode: How many worker processes to create" do |arg|
        user_config.workers arg
      end
      o.on "--tag NAME", "Additional text to display in process listing" do |arg|
        user_config.tag arg
      end
      o.on "--redirect-stdout FILE", "Redirect STDOUT to a specific file" do |arg|
        @stdout = arg.to_s
      end
      o.on "--redirect-stderr FILE", "Redirect STDERR to a specific file" do |arg|
        @stderr = arg.to_s
      end
      o.on "--[no-]redirect-append", "Append to redirected files" do |val|
        @append = val
      end
      o.banner = "puma <options> <rackup file>"
      o.on_tail "-h", "--help", "Show help" do
        $stdout.puts o
        exit 0
      end
    end
  end
end

def unsupported(str)
  @log_writer.error(str)
  raise UnsupportedOption
end