# This is a quick hacky script. It's not supposed to be good Ruby!
# Run with -W0 (because it uses top-level @@) and pipe into a file.
# You also need a valid /usr/share/dict/words file - "pacman -S words" on Arch-based distros

WORDS = File.read('/usr/share/dict/words')
  .split("\n")
  .select { |w| /^[A-Za-z]{3,}$/ === w }
  .map(&:capitalize)
  .freeze

CLASSES_TO_GENERATE = 1000

@@generated_classes = []

def stop?
  @@generated_classes.length >= CLASSES_TO_GENERATE
end

def generate_method_name
  selected_words = 3.times.map { WORDS.sample }
  selected_words[0] = selected_words[0].downcase
  selected_words.join
end

def generate_class_name
  3.times.map { WORDS.sample }.join
end

def generate_class(i)
  name = generate_class_name
  @@generated_classes << name
  puts "#{i}class #{name}"
  5.times do
    generate_something(i + '  ')
    break if stop?
  end
  puts "#{i}end"  
end

def generate_method(i)
  puts [
    "#{i}# Random method.",
    "#{i}# @param [#{@@generated_classes.sample}] x The first parameter.",
    "#{i}# @param [#{@@generated_classes.sample}] y The second parameter.",
    "#{i}# @return [#{@@generated_classes.sample}] The return value.",
    "#{i}def #{generate_method_name}(x, y); end"
  ]
end

def generate_something(i)
  if rand < 0.15
    generate_class(i)
  else
    generate_method(i)
  end
end

loop do
  generate_class ''
  break if stop?
end