#!/usr/bin/ruby

require "json"

HTTP_STATUSES = {
  "200" => "OK",
  "206" => "Partial Content",
  "301" => "Moved Permanently",
  "302" => "Found",
  "303" => "See Other",
  "304" => "Not Modified",
  "400" => "Bad Request",
  "401" => "Unauthorized",
  "403" => "Forbidden",
  "404" => "Not Found",
  "405" => "Method Not Allowed",
  "408" => "Request Timeout",
  "409" => "Conflict",
  "410" => "Gone",
  "412" => "Precondition Failed",
  "416" => "Requested Range Not Satisfiable",
  "500" => "Internal Server Error",
  "502" => "Bad Gateway",
  "503" => "Service Unavailable",
  "509" => "Bandwidth Limit Exceeded"
}

if ARGV[0] == "config"
  puts "graph_title HTTP response codes"
  puts "graph_args --base 1000"
  puts "graph_vlabel Number of requests per ${graph_period}"
  puts "graph_category api"

  HTTP_STATUSES.each do |code, label|
    puts "http#{code}.label #{code} #{label}"
    puts "http#{code}.type DERIVE"
  end
else
  statistics = JSON.parse(File.read("/srv/www.openstreetmap.org/rails/tmp/statistics.json"))

  HTTP_STATUSES.keys.each do |code|
    count = statistics["status"][code] || 0
    puts "http#{code}.value #{count}"
  end
end