echo_p4.rb

def playback(repeat)
  if repeat == "Nothing!" 
    puts "Ok, fine!"
  elsif repeat == "I have a lot to say"
    puts "Ok, let\'s hear it!"
    print "> " 
    lot_to_say
    out_put_format(things_to_say)
  elsif repeat == "I have something prepared"
    puts "Ok, where can I find what you want to say?"
    print "> "
    text_file = gets.chomp
    puts "Loading #{text_file}..."

    while File.exist?(text_file) == false
      puts "I couldn't find that file."
      puts "Where can I find what you want to say?"
      print "> "
      text_file = gets.chomp
      puts "Loading #{text_file}..."
    end
    if File.exist?(text_file)
      out_put = prepared(text_file)
      out_put_format(out_put)
    end
  else
    puts "You said: #{repeat}"
  end
end

def lot_to_say
  things_to_say = [] 
  story = gets.chomp
  things_to_say << story 

  while story != "done"
    print "> "
    story =  gets.chomp
    break if story == "done"
    things_to_say << story 
  end
end

def out_put_format(array)
  array.each_with_index do |message, index|
    if array.first == message
      puts "You said: #{message}"
    elsif array.last == message
      puts "Finally you said: #{message}"
    else 
      puts "Then, you said: #{message}"
    end
  end
    puts "Phew! Glad you got all #{array.count} of those things off your chest!"
end

def prepared(file)
  array = [] 
  File.open(file, "r").each_line do |line|
    array << line
  end
  array
end

puts "What do you want to say?"
print "> "
playback(gets.chomp)

example.txt

We're leaving ground 
Will things ever be the same again?
It's the final countdown
The final countdown