Class: FindMax::Services::FindMaxNumbers

Inherits:
Object
  • Object
show all
Includes:
Modules::Info
Defined in:
lib/find_max/services/find_max_numbers.rb

Instance Method Summary collapse

Methods included from Modules::Info

#error_message, #info, #result

Constructor Details

#initialize(count_max_numbers) ⇒ FindMaxNumbers 



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# File 'lib/find_max/services/find_max_numbers.rb', line 7

def initialize(count_max_numbers)
  @count_max_numbers = count_max_numbers
  @count_max_numbers_negative = -(@count_max_numbers)
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/find_max/services/find_max_numbers.rb', line 12

def execute

  if $stdin.tty?
    return nil
  end

  @sets_max_numbers = Immutable::SortedSet.new
  numbers = []
  length = 0
  $stdin.each_line do |line|
    numbers = line.scan(/\d+/).map { |i| i.to_i } || []

    add_to_set_numbers(numbers, length)

    length = @sets_max_numbers.length
    if (@count_max_numbers < length)
      @sets_max_numbers = @sets_max_numbers[@count_max_numbers_negative..-1]
    end
  end

  @sets_max_numbers.to_a
rescue Exception => e
  error_message(e.message)
  return nil
end