class DummyServer < WEBrick::HTTPServer
  class Servlet < WEBrick::HTTPServlet::AbstractServlet
    def self.sockets
      @sockets ||= []
    end

    def not_found(_req, res)
      res.status = 404
      res.body   = "Not Found"
    end

    def self.handlers
      @handlers ||= {}
    end

    %w(get post head).each do |method|
      class_eval <<-RUBY, __FILE__, __LINE__
        def self.#{method}(path, &block)
          handlers["#{method}:\#{path}"] = block
        end

        def do_#{method.upcase}(req, res)
          handler = self.class.handlers["#{method}:\#{req.path}"]
          return instance_exec(req, res, &handler) if handler
          not_found
        end
      RUBY
    end

    get "/" do |req, res|
      res.status = 200

      case req["Accept"]
      when "application/json"
        res["Content-Type"] = "application/json"
        res.body = '{"json": true}'
      else
        res["Content-Type"] = "text/html"
        res.body = "<!doctype html>"
      end
    end

    get "/sleep" do |_, res|
      sleep 2

      res.status = 200
      res.body   = "hello"
    end

    post "/sleep" do |_, res|
      sleep 2

      res.status = 200
      res.body   = "hello"
    end

    ["", "/1", "/2"].each do |path|
      get "/socket#{path}" do |req, res|
        self.class.sockets << req.instance_variable_get(:@socket)
        res.status  = 200
        res.body    = req.instance_variable_get(:@socket).object_id.to_s
      end
    end

    get "/params" do |req, res|
      next not_found unless "foo=bar" == req.query_string

      res.status = 200
      res.body   = "Params!"
    end

    get "/multiple-params" do |req, res|
      params = CGI.parse req.query_string

      next not_found unless {"foo" => ["bar"], "baz" => ["quux"]} == params

      res.status = 200
      res.body   = "More Params!"
    end

    get "/proxy" do |_req, res|
      res.status = 200
      res.body   = "Proxy!"
    end

    get "/not-found" do |_req, res|
      res.status = 404
      res.body   = "not found"
    end

    get "/redirect-301" do |_req, res|
      res.status      = 301
      res["Location"] = "http://#{@server.config[:BindAddress]}:#{@server.config[:Port]}/"
    end

    get "/redirect-302" do |_req, res|
      res.status      = 302
      res["Location"] = "http://#{@server.config[:BindAddress]}:#{@server.config[:Port]}/"
    end

    post "/form" do |req, res|
      if "testing-form" == req.query["example"]
        res.status = 200
        res.body   = "passed :)"
      else
        res.status = 400
        res.body   = "invalid! >:E"
      end
    end

    post "/body" do |req, res|
      if "testing-body" == req.body
        res.status = 200
        res.body   = "passed :)"
      else
        res.status = 400
        res.body   = "invalid! >:E"
      end
    end

    head "/" do |_req, res|
      res.status          = 200
      res["Content-Type"] = "text/html"
    end

    get "/bytes" do |_req, res|
      bytes = [80, 75, 3, 4, 20, 0, 0, 0, 8, 0, 123, 104, 169, 70, 99, 243, 243]
      res["Content-Type"] = "application/octet-stream"
      res.body = bytes.pack("c*")
    end

    get "/cookies" do |req, res|
      res["Set-Cookie"] = "foo=bar"
      res.body = req.cookies.map { |c| [c.name, c.value].join ": " }.join("\n")
    end

    post "/echo-body" do |req, res|
      res.status = 200
      res.body   = req.body
    end
  end
end
