// 检查号码是否符合规范，包括长度，类型
export const isCardNo = (card) => {
  //身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X
  // var reg = /(^\d{15}$)|(^\d{17}(\d|X|x)$)/;
  let reg = /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/
  if (reg.test(card) === false) {
    return false
  }
  return true
}

// 取身份证前两位,校验省份
export const checkProvince = (card, vcity) => {
  var province = card.substr(0, 2)
  if (vcity[province] == undefined) {
    return false
  }
  return true
}

// 检查生日是否正确
export const checkBirthday = (card) => {
  var len = card.length
  //身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字
  if (len == '15') {
    var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/
    var arr_data = card.match(re_fifteen)
    var year = arr_data[2]
    var month = arr_data[3]
    var day = arr_data[4]
    var birthday = new Date('19' + year + '/' + month + '/' + day)
    return verifyBirthday('19' + year, month, day, birthday)
  }
  //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X
  if (len == '18') {
    var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X|x)$/
    var arr_data = card.match(re_eighteen)
    var year = arr_data[2]
    var month = arr_data[3]
    var day = arr_data[4]
    var birthday = new Date(year + '/' + month + '/' + day)
    return verifyBirthday(year, month, day, birthday)
  }
  return false
}

// 校验日期
function verifyBirthday(year, month, day, birthday) {
  var now = new Date()
  var now_year = now.getFullYear()
  //年月日是否合理
  if (
    birthday.getFullYear() == year &&
    birthday.getMonth() + 1 == month &&
    birthday.getDate() == day
  ) {
    //判断年份的范围（0岁到100岁之间)
    var time = now_year - year
    if (time >= 0 && time <= 100) {
      return true
    }
    return false
  }
  return false
}

// 校验位的检测
export const checkParity = (card) => {
  //15位转18位
  card = changeFivteenToEighteen(card)
  var len = card.length
  if (len == '18') {
    var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2)
    var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2')
    var cardTemp = 0,
      i,
      valnum
    for (i = 0; i < 17; i++) {
      cardTemp += card.substr(i, 1) * arrInt[i]
    }
    valnum = arrCh[cardTemp % 11]
    if (valnum == card.substr(17, 1).toLocaleUpperCase()) {
      return true
    }
    return false
  }
  return false
}

// 15位转18位身份证号
function changeFivteenToEighteen(card) {
  if (card.length == '15') {
    var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2)
    var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2')
    var cardTemp = 0,
      i
    card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6)
    for (i = 0; i < 17; i++) {
      cardTemp += card.substr(i, 1) * arrInt[i]
    }
    card += arrCh[cardTemp % 11]
    return card
  }
  return card
}
export const validateIdCard = (num) => {
  num = num.toUpperCase() //身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X。
  if (!/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num)) {
    return false
  }
  //验证前2位，城市符合
  var aCity = {
    11: '北京',
    12: '天津',
    13: '河北',
    14: '山西',
    15: '内蒙古',
    21: '辽宁',
    22: '吉林',
    23: '黑龙江 ',
    31: '上海',
    32: '江苏',
    33: '浙江',
    34: '安徽',
    35: '福建',
    36: '江西',
    37: '山东',
    41: '河南',
    42: '湖北',
    43: '湖南',
    44: '广东',
    45: '广西',
    46: '海南',
    50: '重庆',
    51: '四川',
    52: '贵州',
    53: '云南',
    54: '西藏',
    61: '陕西',
    62: '甘肃',
    63: '青海',
    64: '宁夏',
    65: '新疆',
    71: '台湾',
    81: '香港',
    82: '澳门',
    91: '国外',
  }
  if (aCity[parseInt(num.substr(0, 2))] == null) {
    return false
  }

  //下面分别分析出生日期和校验位
  var len, re
  len = num.length
  if (len == 15) {
    re = new RegExp(/^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/)
    var arrSplit = num.match(re) //检查生日日期是否正确
    var dtmBirth = new Date(
      '19' + arrSplit[2] + '/' + arrSplit[3] + '/' + arrSplit[4]
    )
    var bGoodDay
    bGoodDay =
      dtmBirth.getYear() == Number(arrSplit[2]) &&
      dtmBirth.getMonth() + 1 == Number(arrSplit[3]) &&
      dtmBirth.getDate() == Number(arrSplit[4])
    if (!bGoodDay) {
      // 身份证号的出生日期不对
      return false
    } else {
      //将15位身份证转成18位 //校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
      var arrInt = new Array(
        7,
        9,
        10,
        5,
        8,
        4,
        2,
        1,
        6,
        3,
        7,
        9,
        10,
        5,
        8,
        4,
        2
      )
      var arrCh = new Array(
        '1',
        '0',
        'X',
        '9',
        '8',
        '7',
        '6',
        '5',
        '4',
        '3',
        '2'
      )
      var nTemp = 0,
        i
      num = num.substr(0, 6) + '19' + num.substr(6, num.length - 6)
      for (i = 0; i < 17; i++) {
        nTemp += num.substr(i, 1) * arrInt[i]
      }
      num += arrCh[nTemp % 11]
      return true
    }
  }
  if (len == 18) {
    re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/)
    var arrSplit = num.match(re) //检查生日日期是否正确
    var dtmBirth = new Date(arrSplit[2] + '/' + arrSplit[3] + '/' + arrSplit[4])
    var bGoodDay
    bGoodDay =
      dtmBirth.getFullYear() == Number(arrSplit[2]) &&
      dtmBirth.getMonth() + 1 == Number(arrSplit[3]) &&
      dtmBirth.getDate() == Number(arrSplit[4])
    if (!bGoodDay) {
      // 身份证号的出生日期不对
      return false
    } else {
      //检验18位身份证的校验码是否正确。 //校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
      var valnum
      var arrInt = new Array(
        7,
        9,
        10,
        5,
        8,
        4,
        2,
        1,
        6,
        3,
        7,
        9,
        10,
        5,
        8,
        4,
        2
      )
      var arrCh = new Array(
        '1',
        '0',
        'X',
        '9',
        '8',
        '7',
        '6',
        '5',
        '4',
        '3',
        '2'
      )
      var nTemp = 0,
        i
      for (i = 0; i < 17; i++) {
        nTemp += num.substr(i, 1) * arrInt[i]
      }
      valnum = arrCh[nTemp % 11]
      if (valnum != num.substr(17, 1)) {
        // 18位身份证号的校验码不正确
        return false
      }
      return true
    }
  }
  return false
}

// export const checkCardNum = (rule, value, callback) => {
//   var vcity={ 11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",
//     21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",
//     33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",
//     42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",
//     51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",
//     63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"
//   };
//   //是否为空
//   // if(value === ''){
//   //   callback(new Error('请输入正确的身份证'))
//   // }
//   if(value) {
//     //校验长度，类型
//     if(isCardNo(value) === false){
//       callback(new Error('请输入正确的身份证'))
//     }
//     //检查省份
//     if(checkProvince(value,vcity) === false){
//       callback(new Error('请输入正确的身份证'))
//     }
//     //校验生日
//     if(checkBirthday(value) === false){
//       callback(new Error('请输入正确的身份证'))
//     }
//     //检验位的检测
//     if(checkParity(value) === false){
//       callback(new Error('请输入正确的身份证'))
//     }
//   }else {
//     callback()
//   }
// }
