import moment from 'moment'

function date2s (date) {
  return moment(date).format('DD.MM.')
}

function time2s (date) {
  return moment(date).format('HH:mm')
}

function datetime2s (date) {
  return moment(date).format('DD.MM. HH:mm')
}

function sortTable (array, columns) {
  function compare (item1, item2) {
    if (item1 instanceof Date) {

    }
  }
}

function normalize (item, type) {
  return item ? String(item).replace(/\s+/g, ' ').trim() : null
}

function normalizePhone (item) {
  let phone = String(item).replace(/\s|\+|\/|,|-|'/g, '').replace(/\(0\)/, '').replace(/^0+/, '')
  if (phone.match(/[^\d*]/)) {
    return `FEHLER (nicht-numerische Zeichen): ${phone}`
  }
  if (phone.length === 0) {
    return null
  } else if (phone.length === 9) {
    // Assume swiss number
    phone = `+41${phone}`
  } else if (phone.length === 11) {
    phone = `+${phone}`
  } else {
    return `FEHLER (falsche Länge): ${phone}`
  }

  return phone
}

export { date2s, time2s, datetime2s, sortTable, normalize, normalizePhone }