/**
 * Valid类
 * @return {[type]} [description]
 */
var net = require('net');
var Valid = module.exports = Class(function(){
  'use strict';
  return {
    field: '',
    init: function(field){
      this.field = field;
    },
    /**
     * 长度区域
     * @param  {[type]} min [description]
     * @param  {[type]} max [description]
     * @return {[type]}     [description]
     */
    length: function(min, max){
      min = min | 0;
      var length = this.field.length;
      if (length < min) {
        return false;
      }
      if (max) {
        if (length > max) {
          return false;
        }
      }
      return true;
    },
    /**
     * 必填
     * @return {[type]} [description]
     */
    required: function(){
      return (this.field + '').length > 0;
    },
    /**
     * 自定义正则校验
     * @param  {[type]} reg [description]
     * @return {[type]}     [description]
     */
    regexp: function(reg){
      return reg.test(this.field);
    },
    /**
     * 邮箱
     * @return {[type]} [description]
     */
    email: function(){
      return this.regexp(/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/);
    },
    /**
     * 时间戳
     * @return {[type]} [description]
     */
    time: function(){
      return this.regexp(/^(([0-1]\d)|(2[0-3])):[0-5]\d:[0-5]\d$/);
    },
    /**
     * 中文名
     * @return {[type]} [description]
     */
    cnname: function(){
      return this.regexp(/^[\u4e00-\u9fa5a-zA-Z.\u3002\u2022]{2,32}$/);
    },
    /**
     * 身份证号码
     * @return {[type]} [description]
     */
    idnumber: function(){
      if (/^\d{15}$/.test(this.field)) {
        return true;
      }
      if ((/^\d{17}[0-9xX]$/).test(this.field)) {
        var vs = '1,0,x,9,8,7,6,5,4,3,2'.split(','),
          ps = '7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2'.split(','),
          ss = this.field.toLowerCase().split(''),
          r = 0;
        for (var i = 0; i < 17; i++) {
          r += ps[i] * ss[i];
        }
        var isOk = (vs[r % 11] === ss[17]);
        return isOk;
      }
      return false;
    },
    /**
     * 手机号
     * @return {[type]} [description]
     */
    mobile: function(){
      return this.regexp(/^(13|15|18|14)\d{9}$/);
    },
    /**
     * 邮编
     * @return {[type]} [description]
     */
    zipcode: function(){
      return this.regexp(/^\d{6}$/);
    },
    /**
     * 2次值是否一致
     * @param  {[type]} field [description]
     * @return {[type]}       [description]
     */
    confirm: function(field){
      return this.field === field;
    },
    /**
     * url
     * @return {[type]} [description]
     */
    url: function(){
      return this.regexp(/^http(s?):\/\/(?:[A-za-z0-9-]+\.)+[A-za-z]{2,4}(?:[\/\?#][\/=\?%\-&~`@[\]\':+!\.#\w]*)?$/);
    },
    /**
     * 整数
     * @param  {[type]} o [description]
     * @return {[type]}   [description]
     */
    int: function(){
      var value = parseInt(this.field, 0 || 10);
      if (isNaN(value)) {
        return false;
      }
      return (value + '').length === this.field.length;
    },
    /**
     * 浮点数
     * @return {[type]} [description]
     */
    float: function(){
      var value = parseFloat(this.field);
      if (isNaN(value)) {
        return false;
      }
      return (value + '').length === this.field.length;
    },
    /**
     * 整数范围
     * @param  {[type]} min [description]
     * @param  {[type]} max [description]
     * @return {[type]}     [description]
     */
    range: function(min, max){
      var isInt = this.int();
      if (!isInt) {
        return false;
      }
      return this.field >= min && this.field <= max;
    },
    /**
     * ip4校验
     * @return {[type]} [description]
     */
    ip4: function(){
      return net.isIPv4(this.field);
    },
    /**
     * ip6校验
     * @return {[type]} [description]
     */
    ip6: function(){
      return net.isIPv6(this.field);
    },
    /**
     * ip校验
     * @return {[type]} [description]
     */
    ip: function(){
      return net.isIP(this.field);
    },
    /**
     * 日期校验
     * @return {[type]} [description]
     */
    date: function(){
      var reg = /^\d{4}-\d{1,2}-\d{1,2}$/;
      return this.regexp(reg);
    }
  };
});
/**
 * data格式
 * [{
 *     value: xxx,
 *     name: '',
 *     valid: ['required', 'range'],
 *     range_args: [],
 *     msg:{
 *         required: '',
 *         range: ''
 *     }
 * },{
 *     value: xxx,
 *     name: '',
 *     valid: ['required', 'range'],
 *     range_args: [],
 *     msg:{
 *         required: '',
 *         range: ''
 *     }
 * }]
 * @param  {[type]} data [description]
 * @return {[type]}      [description]
 */
Valid.check = function(data){
  'use strict';
  data = data ||[];
  var result = {};
  data.forEach(function(item){
    var valid = item.valid;
    if (!isArray(valid)) {
      valid = [valid];
    }
    var instance = Valid(item.value);
    valid.some(function(validItem){
      var flag;
      if (typeof validItem === 'function') {
        flag =  validItem(item.value, item);
        if (typeof flag === 'string') {
          result[item.name] = flag;
          return true;
        }
        return false;
      }
      flag = instance[validItem].apply(instance, item[validItem + '_args'] || []);
      if (!flag) {
        result[item.name] = item.msg[validItem];
        return true;
      }
    });
  });
  return result;
};