module Rack
  # Deprecated.  Benchmarks output now prepended at end of Kiss#call.
  # This module is kept for benchmarking full request operation time;
  # this should be moved to Kiss#call as well. Then remove this module
  # for Kiss 1.1.
  
  # Rack::Bench shows total request duration for any request.
  class Bench
    def initialize(app)
      @_app = app
    end

    def call(env)
      start_time = Time.now
      code, headers, body = @_app.call(env)
      end_time = Time.now
      
      html = <<-EOT
<style>
.kiss_bench {
  text-align: left;
  padding: 3px 7px;
  border: 1px solid #ec4;
  border-top: 1px solid #fff4bb;
  border-bottom: 1px solid #d91;
  background-color: #ffe590;
  font-size: 12px;
  color: #101;
}
.kiss_bench a {
  color: #930;
  text-decoration: none;
}
.kiss_bench a:hover {
  color: #930;
  text-decoration: underline;
}
.kiss_bench small {
  font-family: arial, sans-serif;
  float: right;
  margin-left: 8px;
  color: #a60;
  text-align: right;
  white-space: nowrap;
}
</style>
<div class="kiss_bench">
<small>kiss bench</small>
<tt><b>TOTAL request duration: #{sprintf("%0.3f", end_time.to_f - start_time.to_f)} s</b></tt>
</div>
EOT
      
      body = body.prepend_html(html, 'body')
      headers['Content-Length'] = body.content_length.to_s
    
      [ code, headers, body ]
    end
  end
end