#!/usr/bin/env ruby

require 'rubygems'
require 'json'
require 'cgi'

def html_list(array)
  output = []
  output.push('<ol>')
  array.each do |item|
    output.push('<li>')
    if item.is_a?(Hash)
      output.push(html_table(item))
    else
      output.push(CGI::escapeHTML(item.to_s))
    end
    output.push('</li>')
  end
  output.push('</ol>')
  (output * "\n")
end

def flip_flop(values)
  raise 'hell: values is not an array' unless values.is_a?(Array)
  @index = 0 unless @index
  if @index < (values.size - 1)
    @index += 1
  else 
    @index = 0
  end
  # puts "#{@index} -> #{values[@index]}"
  values[@index]
end 

def html_table(hash)
  output = []
  output.push('<table>')
  hash.keys.each do |key|
    value = hash[key]
    output.push('<tr>')
    output.push('<td class="zebra_header">')
    output.push("#{key} (#{value.class})")
    output.push('</td>')
    output.push('<td class="' + flip_flop(['zebra_light', 'zebra_dark']) + '">')
    if value.is_a?(Hash)
      output.push(html_table(value))
    elsif value.is_a?(Array)
      output.push(html_list(value))
    else
      output.push(CGI::escapeHTML(value.to_s))
    end
    output.push('</td>')
    output.push('</tr>')
  end
  output.push('</table>')
  output.push('<br />')
  (output * "\n")
end

puts '
<style>
.zebra_dark {
    background: whitesmoke;
}
.zebra_light {
    background: white;
}
.zebra_header {
    background: darkgray;
    font-color: white;
}
td {
    padding: 1mm;
}
</style>
'

STDIN.each do |line|
  begin
    hash = JSON.parse(line)
    puts html_table(hash)
  rescue => error
  end
end