class Bullet::Rack

def add_footer_note(response_body)
  response_body << "<div #{footer_div_style}>" + Bullet.footer_info.uniq.join("<br>") + "</div>"
end

def call(env)
  return @app.call(env) unless Bullet.enable?
  Bullet.start_request
  status, headers, response = @app.call(env)
  return [status, headers, response] if file?(headers) || sse?(response) || empty?(response)
  response_body = nil
  if Bullet.notification?
    if status == 200 && !response_body(response).frozen? && html_request?(headers, response)
      response_body = response_body(response) << Bullet.gather_inline_notifications
      add_footer_note(response_body) if Bullet.add_footer
      headers['Content-Length'] = response_body.bytesize.to_s
    end
  end
  [status, headers, response_body ? [response_body] : response]
ensure
  if Bullet.enable? && Bullet.notification?
    Bullet.perform_out_of_channel_notifications(env)
  end
  Bullet.end_request
end

def empty?(response)
  # response may be ["Not Found"], ["Move Permanently"], etc.
  if rails?
    (response.is_a?(Array) && response.size <= 1) ||
      !response.respond_to?(:body) ||
      !response_body(response).respond_to?(:empty?) ||
      response_body(response).empty?
  else
    body = response_body(response)
    body.nil? || body.empty?
  end
end

def file?(headers)
  headers["Content-Transfer-Encoding"] == "binary"
end

def footer_div_style
F
e="position: fixed; bottom: 0pt; left: 0pt; cursor: pointer; border-style: solid; border-color: rgb(153, 153, 153);
z-border-top-colors: none; -moz-border-right-colors: none; -moz-border-bottom-colors: none;
z-border-left-colors: none; -moz-border-image: none; border-width: 2pt 2pt 0px 0px;
ding: 5px; border-radius: 0pt 10pt 0pt 0px; background: none repeat scroll 0% 0% rgba(200, 200, 200, 0.8);
or: rgb(119, 119, 119); font-size: 18px; font-family: 'Arial', sans-serif; z-index:9999;"
end

def html_request?(headers, response)
  headers['Content-Type'] && headers['Content-Type'].include?('text/html') && response_body(response).include?("<html")
end

def initialize(app)
  @app = app
end

def response_body(response)
  if rails?
    Array === response.body ? response.body.first : response.body
  else
    response.first
  end
end

def sse?(response)
  response.respond_to? :stream
end