#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

class Counter
  FILE_ENCODING = "UTF-8"
  TARGET_COL    = 2 # MiGel CEAN
  EAN_OUTPUT    = 9
  def initialize(file)
    @input  = file
    @result = {
      :ean_14 => 0,
      :ean_13 => 0,
      :output => [],
    }
  end
  def count
    if @input
      File.open(@input, "r:#{FILE_ENCODING}") do |input|
        while line = input.gets
        row  = ''
        cols = line.split(/,/)
        if (ean = cols[TARGET_COL] and !ean.empty?)
          if ean.length > 13
            @result[:output] << ean if @result[:ean_14] < EAN_OUTPUT
            @result[:ean_14] += 1
          else
            @result[:ean_13] += 1
          end
        end
        end
      end
    end
  end
  def report
    puts "14 EAN - #{@result[:ean_14]}"
    puts "13 EAN - #{@result[:ean_13]}"
    puts "--------------"
    puts @result[:output]
    puts "..." if @result[:ean_14] > @result[:output].length
  end
end

unless !ARGV.empty? and file = ARGV.first and File.exist?(file)
  puts "keine Datei ;("
  exit
end

if File.extname(file) != '.csv'
  puts "Csv Bitte :-D"
  exit
end

counter = Counter.new(file)
counter.count 
counter.report