// 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 com.google.common.base.Ascii;
import org.joda.money.Money;

/** {@linkplain Money} CLI parameter converter/validator. */
public final class MoneyParameter extends ParameterConverterValidator<Money> {

  public MoneyParameter() {
    super("not valid money (e.g. 'USD4.99')");
  }

  @Override
  public Money convert(String value) {
    return parse(value);
  }

  private static Money parse(String value) {
    // Add space after currency code if it's missing, to make the CLI a bit friendlier.
    if (value.length() > 3 && value.charAt(3) != ' ') {
      value = String.format("%s %s", value.substring(0, 3), value.substring(3));
    }
    return Money.parse(Ascii.toUpperCase(value));
  }
}