module TextAlign

# File lib/text_align.rb, line 38
def align_labels(labels, suffix: ":")
  labels = labels.map(&:to_s)
  width = labels.map(&:length).max
  labels.map do |label|
    "#{pad(label, width, align: :right)}#{suffix}"
  end
end

# File lib/text_align.rb, line 60
def colour_pad(text, width, style:, align: :left, fill: IRC_FILL)
  plain = pad(text, width, align: align, fill: fill)
  return plain if style.to_s.empty?

  plain.chars.map do |ch|
    ch == fill ? "#{style}#{ch}#{IrcFormat::RESET}" : ch
  end.join
end

# File lib/text_align.rb, line 21
def dotize(text, fill: IRC_FILL)
  text.to_s.tr(" ", fill)
end

# File lib/text_align.rb, line 46
def format_colon_row(label:, value:, label_width: nil)
  label_text = label.to_s
  width = label_width || label_text.length
  "#{pad(label_text, width, align: :right)}: #{value}"
end

# File lib/text_align.rb, line 52
def format_colon_rows(rows)
  labels = rows.map { |row| row.fetch(:label).to_s }
  width = labels.map(&:length).max
  rows.map do |row|
    format_colon_row(label: row.fetch(:label), value: row.fetch(:value), label_width: width)
  end
end

# File lib/text_align.rb, line 25
def pad(text, width, align: :left, fill: IRC_FILL)
  padding = width - plain_length(text)
  return text if padding <= 0

  pad_str = fill * padding
  case align
  when :left then "#{text}#{pad_str}"
  when :right then "#{pad_str}#{text}"
  else
    raise ArgumentError, "align must be :left or :right"
  end
end

# File lib/text_align.rb, line 17
def plain_length(text)
  text.to_s.gsub(IRC_CTRL_PATTERN, "").length
end