module FFaker::Tweet

def body(required_length = 140)
  required_length = [required_length, 20].max
  body = ''
  prefix = ''
  until body.size > required_length
    body += "#{prefix}#{FFaker::Lorem.sentence}"
    prefix = ' '
  end
  body[required_length - 1] = '#'
  body.gsub(/\s\S*\#.*$/, '.')
end

def mention
  "@#{FFaker::Internet.user_name}"
end

def mentions(num = 2)
  mention_names = []
  num.times { mention_names << mention }
  mention_names.join(' ')
end

def tags(num_tags = 2)
  fetch_sample(HASHTAG, count: num_tags).join(' ')
end

def tweet(args = {})
  options = {
    num_hashtags: [0, rand(-5..4)].max,
    num_mentions: [0, rand(-7..2)].max,
    reply: (rand(1..10) == 1),
    body_length: rand(20..140)
  }.merge(args)
  my_reply = options[:reply] ? "#{mention} " : ''
  my_mentions = (options[:num_mentions]).positive? ? "#{mentions(options[:num_mentions])} " : ''
  my_tags = tags(options[:num_hashtags])
  remaining = [
    options[:body_length],
    140 - (my_reply.size + my_mentions.size + my_tags.size)
  ].min
  "#{my_reply}#{body(remaining)}#{my_mentions}#{my_tags}"
end