xps.rb

require 'date'

class App
  def initialize
    collect
    process
    print
  end

  def collect
    @lines = []
    file = File.open("/Users/basmoura/Downloads/_chat.txt").read
    file.each_line do |line|
      @lines << line if line.match(/(:\s.*:\s)/)
    end

    @l = @lines.group_by { |l| Date.strptime(l[/\d.\/\d.\/\d./], "%d/%m/%y").strftime("%m/%y") if l.match(/\d.\/\d.\/\d./) }
  end

  def process
    users = ["Puig", "Guguets", "Eloy", "Heitor Figueiredo", "Guigo",
             "Aldo Cristiano", "Sinho", "Coxinha", "Diego Mota", "Breno Moura",
             "Negao", "FlavioPrado", "Leonardo", "Dudu", "Cleyton", "Formiga",
             "Sidney Menezes", "Palin", "Caio", "Rodriguinho", "Naldinho",
             "Flavinho", "Vitor Bessa"].sort_by(&:downcase)

    @sum = 0.0

    puts "Perído: 23/12/16 19:04:09 - 24/05/17 12:28:27"
    puts "Total de mensagens: #{@lines.count}"
    puts ""
    users.each do |user|
      @l.each do |k, v|
        total = v.select { |line| line.match(/:\s#{user}:/i) }.count
        percent = (total.to_f / v.count.to_f) * 100
        @sum += percent

        puts "#{k} - #{user}: #{total} mensagens. (#{percent.round(2)}%)"
      end
    end
  end

  def print
    puts "Total apurado: #{@sum.round}%"
  end
end

App.new