module ClockMeaningSpread

# File lib/clock/meaning_spread.rb, line 57
def pick_multiple(pool, lines:, exclude:, rng:)
  blocked = Array(exclude).map(&:to_s).reject(&:empty?)
  choices = pool.reject { |line| blocked.include?(line) }
  choices = pool if choices.empty?

  selected = if choices.length <= lines
               choices
             else
               choices.shuffle(random: rng).first(lines)
             end

  selected.map { |line| ClockCondense.full_line(line) }
end

# File lib/clock/meaning_spread.rb, line 14
def spread(pool, lines:, exclude: [], rng: Random.new, max_width: ClockCondense::MAX_BODY_LINE)
  pool = Array(pool).map(&:to_s).reject { |line| line.strip.empty? }
  return [] if pool.empty?

  budget = [lines.to_i, 1].max

  if pool.length == 1
    return wrap_text(ClockCondense.full_line(pool.first), lines: budget, max_width: max_width)
  end

  pick_multiple(pool, lines: budget, exclude: exclude, rng: rng)
end

# File lib/clock/meaning_spread.rb, line 27
def wrap_text(text, lines:, max_width: ClockCondense::MAX_BODY_LINE)
  text = TextUtil.squish(text.to_s)
  return [] if text.empty?

  budget = [lines.to_i, 1].max
  result = []
  remaining = text

  while !remaining.empty? && result.length < budget
    if remaining.length <= max_width
      result << remaining
      remaining = ""
    else
      slice = remaining[0, max_width]
      break_at = slice.rindex(" ")
      break_at = max_width if break_at.nil? || break_at.zero?
      result << remaining[0, break_at].rstrip
      remaining = remaining[break_at..].lstrip
    end
  end

  if !remaining.empty? && !result.empty?
    result[-1] = "#{result[-1]} #{remaining}".strip
  elsif !remaining.empty?
    result << remaining
  end

  result
end