dRAnalyzer.rb

require 'rubygems'
require 'json'
require 'net/http'
require 'time'

$old_id = 0
$total_length = 0
$rant_count = 0

def restore_data
  if !File.zero?("log.txt")
    data = File.open("log.txt") {|f| f.extend(Enumerable).inject {|_, ln| ln}}.gsub("\n", '').split(' ')
    $total_length = data[1]
    $rant_count = data[2]
  else
    File.open('log.txt', 'a') do |f|
      f.write("0 0 0 \n")
    end
  end
end

def get_api_content(url)
  uri = URI(url)
  Net::HTTP.get(uri)
end

def count_substrings(string, substring)
  string.each_char.each_cons(substring.size).map(&:join).count(substring)
end

restore_data

loop do
  # We start by getting the first recent rant
  rantjson = get_api_content('https://devrant.com/api/devrant/rants?app=3&limit=1&sort=recent')

  rantjson = JSON.parse rantjson

  rantid = rantjson["rants"][0]['id']
  rant_text = rantjson['rants'][0]['text']

  rant_text.downcase!

  if rantjson['rants'][0]['id'] != $old_id
    puts 'Analyzing new Rant with ID ' + rantid.to_s + '...'
    length = rant_text.split(/[^[[:word:]]']+/).length.to_i

    $rant_count = $rant_count.to_i + 1.to_i
    $total_length = $total_length.to_i + length.to_i

    puts $total_length.to_s + ' words in total'
    puts $rant_count.to_s + ' rants'
    puts "#{($total_length / $rant_count)} words in average"

    File.open('log.txt', 'a') {|f|
      f.write("#{rantid} #{$total_length} #{$rant_count} \n")
    }
  end

  # puts rant_text
  # puts $sum

  $old_id = rantid
  sleep 10
end