'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _rule = require('../rule/');

var _rule2 = _interopRequireDefault(_rule);

var _util = require('../util');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 *  Validates a regular expression pattern.
 *
 *  Performs validation when a rule only contains
 *  a pattern property but is not declared as a string type.
 *
 *  @param rule The validation rule.
 *  @param value The value of the field on the source object.
 *  @param callback The callback function.
 *  @param source The source object being validated.
 *  @param options The validation options.
 *  @param options.messages The validation messages.
 */
function pattern(rule, value, callback, source, options) {
  var errors = [];
  var validate = rule.required || !rule.required && source.hasOwnProperty(rule.field);
  if (validate) {
    if ((0, _util.isEmptyValue)(value, 'string') && !rule.required) {
      return callback();
    }
    _rule2['default'].required(rule, value, source, errors, options);
    if (!(0, _util.isEmptyValue)(value, 'string')) {
      _rule2['default'].pattern(rule, value, source, errors, options);
    }
  }
  callback(errors);
}

exports['default'] = pattern;
module.exports = exports['default'];