const MAX_CHARS_PER_LINE = 45

function normalizeLineBreaks(text) {
  return String(text || '').replace(/\r\n?/g, '\n')
}

function wrapTextByChars(text, maxCharsPerLine = MAX_CHARS_PER_LINE) {
  if (maxCharsPerLine <= 0) {
    return normalizeLineBreaks(text)
  }

  const normalized = normalizeLineBreaks(text)
  const lines = normalized.split('\n')
  const wrappedLines = []

  for (const line of lines) {
    const chars = Array.from(line)
    if (!chars.length) {
      wrappedLines.push('')
      continue
    }

    for (let i = 0; i < chars.length; i += maxCharsPerLine) {
      wrappedLines.push(chars.slice(i, i + maxCharsPerLine).join(''))
    }
  }

  return wrappedLines.join('\n')
}

module.exports = {
  MAX_CHARS_PER_LINE,
  wrapTextByChars,
}