class Puma::Runner

def app
  @app ||= @config.app
end

def close_control_listeners
  @control.binder.close_listeners if @control
end

def debug(str)
  @log_writer.log "- #{str}" if @options[:debug]
end

def debug_loaded_extensions(str)
  @log_writer.debug "────────────────────────────────── #{str}"
  re_ext = /\.#{RbConfig::CONFIG['DLEXT']}\z/i
  $LOADED_FEATURES.grep(re_ext).each { |f| @log_writer.debug("    #{f}") }
end

def development?
  @options[:environment] == "development"
end

def ensure_output_directory_exists(path, io_name)
  unless Dir.exist?(File.dirname(path))
    raise "Cannot redirect #{io_name} to #{path}"
  end
end

def error(str)
  @log_writer.error str
end

def initialize(launcher)
  @launcher = launcher
  @log_writer = launcher.log_writer
  @events = launcher.events
  @config = launcher.config
  @options = launcher.options
  @app = nil
  @control = nil
  @started_at = Time.now
  @wakeup = nil
end

def load_and_bind
  unless @config.app_configured?
    error "No application configured, nothing to run"
    exit 1
  end
  begin
    @app = @config.app
  rescue Exception => e
    log "! Unable to load application: #{e.class}: #{e.message}"
    raise e
  end
  @launcher.binder.parse @options[:binds]
end

def log(str)
  @log_writer.log str
end

def output_header(mode)
  min_t = @options[:min_threads]
  max_t = @options[:max_threads]
  environment = @options[:environment]
  log "Puma starting in #{mode} mode..."
  log "* Puma version: #{Puma::Const::PUMA_VERSION} (#{ruby_engine}) (\"#{Puma::Const::CODE_NAME}\")"
  log "*  Min threads: #{min_t}"
  log "*  Max threads: #{max_t}"
  log "*  Environment: #{environment}"
  if mode == "cluster"
    log "*   Master PID: #{Process.pid}"
  else
    log "*          PID: #{Process.pid}"
  end
end

def redirect_io
  stdout = @options[:redirect_stdout]
  stderr = @options[:redirect_stderr]
  append = @options[:redirect_append]
  if stdout
    ensure_output_directory_exists(stdout, 'STDOUT')
    STDOUT.reopen stdout, (append ? "a" : "w")
    STDOUT.puts "=== puma startup: #{Time.now} ==="
    STDOUT.flush unless STDOUT.sync
  end
  if stderr
    ensure_output_directory_exists(stderr, 'STDERR')
    STDERR.reopen stderr, (append ? "a" : "w")
    STDERR.puts "=== puma startup: #{Time.now} ==="
    STDERR.flush unless STDERR.sync
  end
  if @options[:mutate_stdout_and_stderr_to_sync_on_write]
    STDOUT.sync = true
    STDERR.sync = true
  end
end

def redirected_io?
  @options[:redirect_stdout] || @options[:redirect_stderr]
end

def ruby_engine
  if !defined?(RUBY_ENGINE) || RUBY_ENGINE == "ruby"
    "ruby #{RUBY_VERSION}-p#{RUBY_PATCHLEVEL}"
  else
    if defined?(RUBY_ENGINE_VERSION)
      "#{RUBY_ENGINE} #{RUBY_ENGINE_VERSION} - ruby #{RUBY_VERSION}"
    else
      "#{RUBY_ENGINE} #{RUBY_VERSION}"
    end
  end
end

def start_control
  str = @options[:control_url]
  return unless str
  require_relative 'app/status'
  if token = @options[:control_auth_token]
    token = nil if token.empty? || token == 'none'
  end
  app = Puma::App::Status.new @launcher, token
  # A Reactor is not created aand nio4r is not loaded when 'queue_requests: false'
  # Use `nil` for events, no hooks in control server
  control = Puma::Server.new app, nil,
    { min_threads: 0, max_threads: 1, queue_requests: false, log_writer: @log_writer }
  control.binder.parse [str], nil, 'Starting control server'
  control.run thread_name: 'ctl'
  @control = control
end

def start_server
  server = Puma::Server.new(app, @events, @options)
  server.inherit_binder(@launcher.binder)
  server
end

def stats
  {
    versions: {
      puma: Puma::Const::PUMA_VERSION,
      ruby: {
        engine: RUBY_ENGINE,
        version: RUBY_VERSION,
        patchlevel: RUBY_PATCHLEVEL
      }
    }
  }
end

def stop_control
  @control&.stop true
end

def test?
  @options[:environment] == "test"
end

def utc_iso8601(val)
  "#{val.utc.strftime '%FT%T'}Z"
end

def wakeup!
  return unless @wakeup
  @wakeup.write "!" unless @wakeup.closed?
rescue SystemCallError, IOError
  Puma::Util.purge_interrupt_queue
end