dojo.provide("common.util.validate");

common.util.validate = {

   isBlank : function(value) {
      if (typeof (value) == "undefinded" || value == null) {
         return true;
      }
      if (typeof (value) != "string") {
         value = value.toString();
      }
      var v = dojo.string.trim(value);
      if (v.length == 0) {
         return true;
      }
      return false;
   },

   isPositiveInteger : function(number) {
      var reg = /^[0-9]*[1-9][0-9]*$/;
      if (!reg.test(number)) {
         return false;
      }
      return true;
   },

   isValidEmail : function(mail) {
      var EMAIL = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
      if (!EMAIL.test(mail)) {
         return false;
      }
      return true;
   },

   isValidPhoneNum : function(number) {
      var PHONE = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/;
      if (!PHONE.test(number)) {
         return false;
      }
      return true;
   },

   isElevenNumString : function(number) {
      var ELEVEN_NUM_STRING = /^\d{11}$/;
      if (!ELEVEN_NUM_STRING.test(number)) {
         return false;
      }
      return true;
   },

   isAreaCodeString : function(number) {
      var AREA_CODE_STRING = /^0\d{2,3}$/;
      if (!AREA_CODE_STRING.test(number)) {
         return false;
      }
      return true;
   },

   isValidFixPhoneNum : function(number) {
      var FIX_PHONE = /^((0\d{2,3})-)(\d{7,8})((-(\d{1,4})(\/(\d{1,4}))*)?)$/;
      if (!FIX_PHONE.test(number)) {
         return false;
      }
      return true;
   },

   isIdNo : function(num) {
      num = num.toUpperCase();
      // 身份證號碼為15位或者18位，15位時全為數字，18位前17位為數字，最後一位是校驗位，可能為數字或字元X。
      if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num))) {
         return false;
      }
      //校驗位按照ISO 7064:1983.MOD 11-2的規定生成，X可以認為是數字10。
      // 下面分別分析出生日期和校驗位
      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);

         // 檢查生日日期是否正確
         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) {
            return false;
         } else {
            //將15位身份證轉成18位
            // 校驗位按照ISO 7064:1983.MOD 11-2的規定生成，X可以認為是數字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 num;
         }
      }
      if (len == 18) {
         re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/);
         var arrSplit = num.match(re);

         // 檢查生日日期是否正確
         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) {
            return false;
         } else {
            //檢驗18位身份證的校驗碼是否正確。
            // 校驗位按照ISO 7064:1983.MOD 11-2的規定生成，X可以認為是數字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)) {
               return false;
            }
            return num;
         }
      }
      return false;
   }
}