import { isString, toNumber } from 'exotic'
import { expiryDate, isValidMonth, isValidYear } from './isValidDates'

// should stare
const currentDate = new Date()
const currentMonth = currentDate.getMonth() + 1
const currentYear = String(currentDate.getFullYear())
const currentYearTwoDigit = String(currentDate.getFullYear()).slice(2, 4)
// const isValidateMonth = month => {
//   if (month >= currentMonth && month <= 12 && matchMonthSpecicalChar.test(month)) {
//     return true
//   }
//   else {
//     return false
//   }
// }
// const isValidateYear = (year, month) => {
//   let validYear = false
//   if (year >= currentYear) {
//     validYear = !!(
//       (year > currentYear && month > 0 && month <= 12) ||
//       (year === currentYear && isValidMonth(month))
//     )
//   } else {
//     const expiryYearLength = year.length
//     if (expiryYearLength >= 4) {
//       validYear = false && isValidMonth(month)
//     } else if (expiryYearLength === 2) {
//       validYear = !!(
//         (year > currentYearTwoDigit && month > 0 && month <= 12) ||
//         (year === currentYearTwoDigit && isValidMonth(month))
//       )
//     }
//   }
//   return validYear
// }

interface FormattedDateObj {
  date: string
  month: number
  year: number
  formattedMonth: string
  formattedYear: string
}

// Date |
type StringyDate = string

const toFormatted = (_date: StringyDate): FormattedDateObj => {
  // 01/10 => 01/2010
  const date = _date.length === 5 ? _date.replace('/', '20') : _date

  const formattedDate = date.replace(/[^0-9]/g, '')

  const formattedMonth = formattedDate
    .replace(/^([2-9])|00/, '0$1')
    .slice(0, 2)
    .replace(/^([1][3-9])/, '1')

  const formattedYear = formattedDate
    .slice(2, 4)
    .replace(/^([0|4-9]\d+|[0|4-9])/, '')

  const obj = {
    date: formattedDate,
    formattedMonth,
    formattedYear,
    month: toNumber(formattedMonth),
    year: toNumber(formattedYear),
  }

  return obj
}

/**
 * @todo validator story is not aligned with this
 */
function isValidExpiryDate(date: any): boolean {
  const { expiryYear, expiryMonth, validationType } = date
  const year = expiryYear.value
  const month = expiryMonth.value
  const isWithinMonthRange = month > 0 && month <= 12
  const matchMonthSpecicalChar = /^\d{0,2}(?:\.\d)?$/
  if (!isWithinMonthRange) {
    console.warn('isWithinMonthRange')
    return false
  }
  if (validationType == 'month') {
    return month > 0 && month <= 12 && matchMonthSpecicalChar.test(month)
  }
  if (year && validationType == 'year') {
    const yearValidation = isValidYear(year, month)
    return yearValidation
  } else {
    return false
  }
}

export {
  isValidExpiryDate,
  isValidYear,
  currentYear,
  currentYearTwoDigit,
  isValidMonth,
  currentMonth,
}
export default isValidExpiryDate