module.exports = {
  validatePhone ({ phone } = {}) {
    try {
      let [fullphone, areacode, callnumber] = /^\+(\d{1,3})-(\d{7,11})$/.exec(phone)
      switch (areacode) {
        case this.landSet['CN'].itc:
          return /^1\d{10}$/.test(callnumber)
        case this.landSet['SG'].itc:
          return /^[89]\d{7}$/.test(callnumber)
        case this.landSet['US'].itc:
          return /^\d{10}$/.test(callnumber)
        case this.landSet['JP'].itc:
          return /^\d{10}$/.test(callnumber)
        default:
          return true
      }
    } catch (err) {
      return false
    }
  },
}