// Copyright 2017 The Nomulus Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package google.registry.tools.params;

import static com.google.common.base.Preconditions.checkArgument;

import com.google.re2j.Pattern;

/** Phone number CLI parameter converter/validator. */
public final class PhoneNumberParameter extends ParameterConverterValidator<String> {

  private static final Pattern ICANN_E164 = Pattern.compile("(\\+[0-9]{1,3}\\.[0-9]{1,14})?");

  public PhoneNumberParameter() {
    super("Must be a valid +E.164 phone number, e.g. +1.2125650000");
  }

  @Override
  public String convert(String value) {
    checkArgument(ICANN_E164.matcher(value).matches());
    return value;
  }
}