#!/usr/local/bin/ruby231

require 'sbsm/request'
dir = File.expand_path(File.join(File.dirname(File.dirname(__FILE__)), 'src'))
$:.unshift dir
require 'davaz'
require 'util/config'
require 'drb'
DRb.start_service('druby://localhost:0')

puts "Started DRb service"
require 'zlib'

require 'rack/request'
require 'rack/response'

module Rack
  # Paste has a Pony, Rack has a Lobster!
  class Lobster
    LobsterString ='dummy'

    LambdaLobster = lambda { |env|
                             $stderr.puts "env query #{env[QUERY_STRING]}\n\n"
                           puts env
      if env[QUERY_STRING].include?("flip")
        lobster = LobsterString.split("\n").
          map { |line| line.ljust(42).reverse }.
          join("\n")
        href = "?"
      else
        lobster = LobsterString
        href = "?flip"
      end

      content = ["<title>Lobstericious!</title>",
                 "<pre>", lobster, "</pre>",
                 "<a href='#{href}'>flip!</a>"]
      length = content.inject(0) { |a,e| a+e.size }.to_s
      [200, {CONTENT_TYPE => "text/html", CONTENT_LENGTH => length}, content]
    }

    def call(env)
      req = Request.new(env)
      if true
        # require 'pry'; binding.pry
        SBSM::Request.new(DaVaz.config.server_uri).process
      else
      # puts "req ist #{req.inspect}"
# req ist #<Rack::Request:0x00000002163be8 @params=nil, @env={"GATEWAY_INTERFACE"=>"CGI/1.1", "PATH_INFO"=>"/", "QUERY_STRING"=>"flip=left",
# "REMOTE_ADDR"=>"127.0.0.1", "REMOTE_HOST"=>"127.0.0.1", "REQUEST_METHOD"=>"GET", "REQUEST_URI"=>"http://localhost:9191/?flip=left",
# "SCRIPT_NAME"=>"", "SERVER_NAME"=>"localhost", "SERVER_PORT"=>"9191", "SERVER_PROTOCOL"=>"HTTP/1.1", "SERVER_SOFTWARE"=>"WEBrick/1.3.1 (Ruby/2.3.1/2016-04-26)",
# "HTTP_HOST"=>"localhost:9191", "HTTP_CONNECTION"=>"close", "HTTP_CACHE_CONTROL"=>"max-age=0", "HTTP_UPGRADE_INSECURE_REQUESTS"=>"1", "HTTP_USER_AGENT"=>"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.34 Safari/537.36", "HTTP_ACCEPT"=>"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", "HTTP_REFERER"=>"http://localhost:8751/", "HTTP_ACCEPT_ENCODING"=>"gzip, deflate, sdch, br", "HTTP_ACCEPT_LANGUAGE"=>"de-DE,de;q=0.8,en-US;q=0.6,en;q=0.4", "rack.version"=>[1, 3], "rack.input"=>#<Rack::Lint::InputWrapper:0x00000002163c38 @input=#<StringIO:0x00000002172940>>, "rack.errors"=>#<Rack::Lint::ErrorWrapper:0x00000002163c10 @error=#<IO:<STDERR>>>, "rack.multithread"=>true, "rack.multiprocess"=>false, "rack.run_once"=>false, "rack.url_scheme"=>"http", "rack.hijack?"=>true, "rack.hijack"=>#<Proc:0x00000002163fa8@/var/www/davaz.com/vendor/ruby/2.3.0/gems/rack-2.0.1/lib/rack/lint.rb:525>, "rack.hijack_io"=>nil, "HTTP_VERSION"=>"HTTP/1.1", "REQUEST_PATH"=>"/"}>

      if req.GET["flip"] == "left"
        lobster = LobsterString.split("\n").map do |line|
          line.ljust(42).reverse.
            gsub('\\', 'TEMP').
            gsub('/', '\\').
            gsub('TEMP', '/').
            gsub('{','}').
            gsub('(',')')
        end.join("\n")
        href = "?flip=right"
      elsif req.GET["flip"] == "crash"
        raise "Lobster crashed"
      else
        lobster = LobsterString
        href = "?flip=left"
      end

      res = Response.new
      res.write "<title>Lobstericious!</title>"
      res.write "<pre>"
      res.write lobster
      res.write "</pre>"
      res.write "<p><a href='#{href}'>flip!</a></p>"
      res.write "<p><a href='?flip=crash'>crash!</a></p>"
      res.finish
      end
    end

  end
end

if $0 == __FILE__
  require 'rack'
  require 'rack/show_exceptions'
  Rack::Server.start(
    :app => Rack::ShowExceptions.new(Rack::Lint.new(Rack::Lobster.new)), :Port => 9191
  )
end