module ParagraphFormat

# File lib/paragraph_format.rb, line 6
def build_paragraphs(items, max_bytes:, separator: ", ")
  entries = Array(items).map(&:to_s).map(&:strip).reject(&:empty?)
  return [] if entries.empty?

  paragraphs = []
  current = +""

  entries.each do |entry|
    candidate = current.empty? ? entry : "#{current}#{separator}#{entry}"
    if candidate.bytesize > max_bytes && !current.empty?
      paragraphs << current
      current = entry.dup
    else
      current = candidate
    end
  end

  paragraphs << current unless current.empty?
  paragraphs
end