class Puma::DSL

def self.ssl_bind_str(host, port, opts)
  verify = opts.fetch(:verify_mode, 'none').to_s
  tls_str =
    if opts[:no_tlsv1_1]  then '&no_tlsv1_1=true'
    elsif opts[:no_tlsv1] then '&no_tlsv1=true'
    else ''
    end
  ca_additions = "&ca=#{Puma::Util.escape(opts[:ca])}" if ['peer', 'force_peer'].include?(verify)
  low_latency_str = opts.key?(:low_latency) ? "&low_latency=#{opts[:low_latency]}" : ''
  backlog_str = opts[:backlog] ? "&backlog=#{Integer(opts[:backlog])}" : ''
  if defined?(JRUBY_VERSION)
    cipher_suites = opts[:ssl_cipher_list] ? "&ssl_cipher_list=#{opts[:ssl_cipher_list]}" : nil # old name
    cipher_suites = "#{cipher_suites}&cipher_suites=#{opts[:cipher_suites]}" if opts[:cipher_suites]
    protocols = opts[:protocols] ? "&protocols=#{opts[:protocols]}" : nil
    keystore_additions = "keystore=#{opts[:keystore]}&keystore-pass=#{opts[:keystore_pass]}"
    keystore_additions = "#{keystore_additions}&keystore-type=#{opts[:keystore_type]}" if opts[:keystore_type]
    if opts[:truststore]
      truststore_additions = "&truststore=#{opts[:truststore]}"
      truststore_additions = "#{truststore_additions}&truststore-pass=#{opts[:truststore_pass]}" if opts[:truststore_pass]
      truststore_additions = "#{truststore_additions}&truststore-type=#{opts[:truststore_type]}" if opts[:truststore_type]
    end
    "ssl://#{host}:#{port}?#{keystore_additions}#{truststore_additions}#{cipher_suites}#{protocols}" \
      "&verify_mode=#{verify}#{tls_str}#{ca_additions}#{backlog_str}"
  else
    ssl_cipher_filter = opts[:ssl_cipher_filter] ? "&ssl_cipher_filter=#{opts[:ssl_cipher_filter]}" : nil
    ssl_ciphersuites = opts[:ssl_ciphersuites] ? "&ssl_ciphersuites=#{opts[:ssl_ciphersuites]}" : nil
    v_flags = (ary = opts[:verification_flags]) ? "&verification_flags=#{Array(ary).join ','}" : nil
    cert_flags = (cert = opts[:cert]) ? "cert=#{Puma::Util.escape(cert)}" : nil
    key_flags = (key = opts[:key]) ? "&key=#{Puma::Util.escape(key)}" : nil
    password_flags = (password_command = opts[:key_password_command]) ? "&key_password_command=#{Puma::Util.escape(password_command)}" : nil
    reuse_flag =
      if (reuse = opts[:reuse])
        if reuse == true
          '&reuse=dflt'
        elsif reuse.is_a?(Hash) && (reuse.key?(:size) || reuse.key?(:timeout))
          val = +''
          if (size = reuse[:size]) && Integer === size
            val << size.to_s
          end
          if (timeout = reuse[:timeout]) && Integer === timeout
            val << ",#{timeout}"
          end
          if val.empty?
            nil
          else
            "&reuse=#{val}"
          end
        else
          nil
        end
      else
        nil
      end
    "ssl://#{host}:#{port}?#{cert_flags}#{key_flags}#{password_flags}#{ssl_cipher_filter}#{ssl_ciphersuites}" \
      "#{reuse_flag}&verify_mode=#{verify}#{tls_str}#{ca_additions}#{v_flags}#{backlog_str}#{low_latency_str}"
  end
end

def _load_from(path)
  if path
    @path = path
    instance_eval(File.read(path), path, 1)
  end
ensure
  _offer_plugins
end

def _offer_plugins
  @plugins.each do |o|
    if o.respond_to? :config
      @options.shift
      o.config self
    end
  end
  @plugins.clear
end

def activate_control_app(url="auto", opts={})
  if url == "auto"
    path = Configuration.temp_path
    @options[:control_url] = "unix://#{path}"
    @options[:control_url_temp] = path
  else
    @options[:control_url] = url
  end
  if opts[:no_token]
    # We need to use 'none' rather than :none because this value will be
    # passed on to an instance of OptionParser, which doesn't support
    # symbols as option values.
    #
    # See: https://github.com/puma/puma/issues/1193#issuecomment-305995488
    auth_token = 'none'
  else
    auth_token = opts[:auth_token]
    auth_token ||= Configuration.random_token
  end
  @options[:control_auth_token] = auth_token
  @options[:control_url_umask] = opts[:umask] if opts[:umask]
  @options[:control_data_only] = opts[:data_only] if opts[:data_only]
end

def add_pem_values_to_options_store(opts)
  return if defined?(JRUBY_VERSION)
  @options[:store] ||= []
  # Store cert_pem and key_pem to options[:store] if present
  [:cert, :key].each do |v|
    opt_key = :"#{v}_pem"
    if opts[opt_key]
      index = @options[:store].length
      @options[:store] << opts[opt_key]
      opts[v] = "store:#{index}"
    end
  end
end

def after_booted(&block)
  Puma.deprecate_method_change :on_booted, __callee__, __method__
  @config.events.after_booted(&block)
end

def after_refork(key = nil, &block)
  process_hook :after_refork, key, block
end

def after_stopped(&block)
  Puma.deprecate_method_change :on_stopped, __callee__, __method__
  @config.events.after_stopped(&block)
end

def after_worker_fork(&block)
  process_hook :after_worker_fork, nil, block, cluster_only: true
end

def after_worker_shutdown(&block)
  process_hook :after_worker_shutdown, nil, block, cluster_only: true
end

def app(obj=nil, &block)
  obj ||= block
  raise "Provide either a #call'able or a block" unless obj
  @options[:app] = obj
end

def before_fork(&block)
  process_hook :before_fork, nil, block, cluster_only: true
end

def before_refork(key = nil, &block)
  Puma.deprecate_method_change :on_refork, __callee__, __method__
  process_hook :before_refork, key, block, cluster_only: true
end

def before_restart(&block)
  Puma.deprecate_method_change :on_restart, __callee__, __method__
  process_hook :before_restart, nil, block
end

def before_thread_exit(&block)
  Puma.deprecate_method_change :on_thread_exit, __callee__, __method__
  process_hook :before_thread_exit, nil, block
end

def before_thread_start(&block)
  Puma.deprecate_method_change :on_thread_start, __callee__, __method__
  process_hook :before_thread_start, nil, block
end

def before_worker_boot(key = nil, &block)
  Puma.deprecate_method_change :on_worker_boot, __callee__, __method__
  process_hook :before_worker_boot, key, block, cluster_only: true
end

def before_worker_fork(&block)
  Puma.deprecate_method_change :on_worker_fork, __callee__, __method__
  process_hook :before_worker_fork, nil, block, cluster_only: true
end

def before_worker_shutdown(key = nil, &block)
  Puma.deprecate_method_change :on_worker_shutdown, __callee__, __method__
  process_hook :before_worker_shutdown, key, block, cluster_only: true
end

def bind(url)
  @options[:binds] ||= []
  @options[:binds] << url
end

def bind_to_activated_sockets(bind=true)
  @options[:bind_to_activated_sockets] = bind
end

def clear_binds!
  @options[:binds] = []
end

def cluster(&block)
  raise ArgumentError, "A block must be provided to `cluster`" unless block
  @options[:cluster] ||= []
  @options[:cluster] << block
end

def custom_logger(custom_logger)
  @options[:custom_logger] = custom_logger
end

def debug
  @options[:debug] = true
end

def default_host
  @options[:default_host] || Configuration.default_tcp_host
end

def directory(dir)
  @options[:directory] = dir.to_s
end

def drain_on_shutdown(which=true)
  @options[:drain_on_shutdown] = which
end

def early_hints(answer=true)
  @options[:early_hints] = answer
end

def enable_keep_alives(enabled=true)
  @options[:enable_keep_alives] = enabled
end

def environment(environment)
  @options[:environment] = environment
end

def extra_runtime_dependencies(answer = [])
  @options[:extra_runtime_dependencies] = Array(answer)
end

def fiber_per_request(which=true)
  @options[:fiber_per_request] = which
end

def first_data_timeout(seconds)
  @options[:first_data_timeout] = Integer(seconds)
end

def force_shutdown_after(val=:forever)
  i = case val
      when :forever
        -1
      when :immediately
        0
      else
        Float(val)
      end
  @options[:force_shutdown_after] = i
end

def fork_worker(after_requests=1000)
  @options[:fork_worker] = Integer(after_requests)
end

def get(key,default=nil)
  @options[key.to_sym] || default
end

def http_content_length_limit(limit)
  @options[:http_content_length_limit] = limit
end

def idle_timeout(seconds)
  @options[:idle_timeout] = Integer(seconds)
end

def initialize(options, config)
  @config  = config
  @options = options
  @plugins = []
end

def inject(&blk)
  instance_eval(&blk)
end

def io_selector_backend(backend)
  @options[:io_selector_backend] = backend.to_sym
end

def load(file)
  @options[:config_files] ||= []
  @options[:config_files] << file
end

def log_formatter(&block)
  @options[:log_formatter] = block
end

def log_requests(which=true)
  @options[:log_requests] = which
end

def lowlevel_error_handler(obj=nil, &block)
  obj ||= block
  raise "Provide either a #call'able or a block" unless obj
  @options[:lowlevel_error_handler] = obj
end

def max_fast_inline(num_of_requests)
  Puma.deprecate_method_change :max_fast_inline, __method__, :max_keep_alive
  @options[:max_keep_alive] ||= Float(num_of_requests) unless num_of_requests.nil?
end

def max_io_threads(max)
  max = Integer(max)
  if max < 0
    raise "The maximum number of IO threads (#{max}) must be a positive number"
  end
  @options[:max_io_threads] = max
end

def max_keep_alive(num_of_requests)
  @options[:max_keep_alive] = Float(num_of_requests) unless num_of_requests.nil?
end

def mutate_stdout_and_stderr_to_sync_on_write(enabled=true)
  @options[:mutate_stdout_and_stderr_to_sync_on_write] = enabled
end

def out_of_band(&block)
  process_hook :out_of_band, nil, block
end

def persistent_timeout(seconds)
  @options[:persistent_timeout] = Integer(seconds)
end

def pidfile(path)
  @options[:pidfile] = path.to_s
end

def plugin(name)
  @plugins << @config.load_plugin(name)
end

def port(port, host=nil)
  host ||= default_host
  bind URI::Generic.build(scheme: 'tcp', host: host, port: Integer(port)).to_s
end

def preload_app!(answer=true)
  @options[:preload_app] = answer
end

def process_hook(options_key, key, block, cluster_only: false)
  raise ArgumentError, "expected #{options_key} to be given a block" unless block
  @config.hooks[options_key] = true
  @options[options_key] ||= []
  hook_options = { block: block, cluster_only: cluster_only }
  hook_options[:id] = if ON_WORKER_KEY.include?(key.class)
    key.to_sym
  elsif key.nil?
    nil
  else
    raise "'#{options_key}' key must be String or Symbol"
  end
  @options[options_key] << hook_options
end

def prune_bundler(answer=true)
  @options[:prune_bundler] = answer
end

def queue_requests(answer=true)
  @options[:queue_requests] = answer
end

def quiet(which=true)
  @options[:log_requests] = !which
end

def rack_url_scheme(scheme=nil)
  @options[:rack_url_scheme] = scheme
end

def rackup(path)
  @options[:rackup] ||= path.to_s
end

def raise_exception_on_sigterm(answer=true)
  @options[:raise_exception_on_sigterm] = answer
end

def restart_command(cmd)
  @options[:restart_cmd] = cmd.to_s
end

def set_default_host(host)
  @options[:default_host] = host
end

def set_remote_address(val=:socket)
  case val
  when :socket
    @options[:remote_address] = val
  when :localhost
    @options[:remote_address] = :value
    @options[:remote_address_value] = "127.0.0.1".freeze
  when String
    @options[:remote_address] = :value
    @options[:remote_address_value] = val
  when Hash
    if hdr = val[:header]
      @options[:remote_address] = :header
      @options[:remote_address_header] = "HTTP_" + hdr.upcase.tr("-", "_")
    elsif protocol_version = val[:proxy_protocol]
      @options[:remote_address] = :proxy_protocol
      protocol_version = protocol_version.downcase.to_sym
      unless [:v1].include?(protocol_version)
        raise "Invalid value for proxy_protocol - #{protocol_version.inspect}"
      end
      @options[:remote_address_proxy_protocol] = protocol_version
    else
      raise "Invalid value for set_remote_address - #{val.inspect}"
    end
  else
    raise "Invalid value for set_remote_address - #{val}"
  end
end

def shutdown_debug(val = true, on_force: false)
  @options[:shutdown_debug] = val && on_force ? :on_force : val
end

def silence_fork_callback_warning
  @options[:silence_fork_callback_warning] = true
end

def silence_single_worker_warning
  @options[:silence_single_worker_warning] = true
end

def single(&block)
  raise ArgumentError, "A block must be provided to `single`" unless block
  @options[:single] ||= []
  @options[:single] << block
end

def ssl_bind(host, port, opts = {})
  add_pem_values_to_options_store(opts)
  bind self.class.ssl_bind_str(host, port, opts)
end

def state_path(path)
  @options[:state] = path.to_s
end

def state_permission(permission)
  @options[:state_permission] = permission
end

def stdout_redirect(stdout=nil, stderr=nil, append=false)
  @options[:redirect_stdout] = stdout
  @options[:redirect_stderr] = stderr
  @options[:redirect_append] = append
end

def supported_http_methods(methods)
  if methods == :any
    @options[:supported_http_methods] = :any
  elsif Array === methods && methods == (ary = methods.grep(String).uniq) &&
    !ary.empty?
    @options[:supported_http_methods] = ary
  else
    raise "supported_http_methods must be ':any' or a unique array of strings"
  end
end

def tag(string)
  @options[:tag] = string.to_s
end

def threads(min, max = min)
  min = Integer(min)
  max = Integer(max)
  if min > max
    raise "The minimum (#{min}) number of threads must be less than or equal to the max (#{max})"
  end
  if max < 1
    raise "The maximum number of threads (#{max}) must be greater than 0"
  end
  @options[:min_threads] = min
  @options[:max_threads] = max
end

def wait_for_less_busy_worker(val=0.005)
  @options[:wait_for_less_busy_worker] = val.to_f
end

def worker_boot_timeout(timeout)
  @options[:worker_boot_timeout] = Integer(timeout)
end

def worker_check_interval(interval)
  @options[:worker_check_interval] = Integer(interval)
end

def worker_culling_strategy(strategy)
  strategy = strategy.to_sym
  if ![:youngest, :oldest].include?(strategy)
    raise "Invalid value for worker_culling_strategy - #{strategy}"
  end
  @options[:worker_culling_strategy] = strategy
end

def worker_shutdown_timeout(timeout)
  @options[:worker_shutdown_timeout] = Integer(timeout)
end

def worker_timeout(timeout)
  timeout = Integer(timeout)
  min = @options.fetch(:worker_check_interval, Configuration::DEFAULTS[:worker_check_interval])
  if timeout <= min
    raise "The minimum worker_timeout must be greater than the worker reporting interval (#{min})"
  end
  @options[:worker_timeout] = timeout
end

def workers(count)
  @options[:workers] = count.nil? ? 0 : @config.send(:parse_workers, count)
end