task 4

4_v3.rb

require 'csv'
require 'ostruct'
doc = "movies.txt"
syms = [:link, :title, :year, :country, 
        :date, :genre, :duration,
        :rating, :director, :stars]


mas = CSV.readlines(doc, headers: syms, col_sep: "|").map{|unit| OpenStruct.new(unit.to_h)}

def Show_em (array_hash)
  array_hash.each do |unit| 
    puts unit.title + " (" + unit.date + "; " + unit.genre + ") - " + unit.duration
  end
end

puts
puts"=========LONGEST========="
Show_em mas.max_by(5){|a| a.duration.split(" ").first.to_i}
puts

puts"====EARLIEST_COMEDIES===="
Show_em mas.select{|unit| unit.genre.include?("Comedy")}.min_by(10){|a| a.date.split("-")}
puts

puts"========DIRECTORS========"
puts mas.collect{|unit| unit.director}.uniq.sort_by{|a| a.split(" ").last}
puts

puts"=========NOT_USA========="
puts mas.select{|unit| unit.country != "USA" }.length
puts