/*
 * Copyright 2025 Hirokazu Kobayashi
 *
 * 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 org.idp.server.core.openid.oauth.type.pkce;

import java.util.Objects;

public class CodeVerifier {
  String value;

  public CodeVerifier() {}

  public CodeVerifier(String value) {
    this.value = value;
  }

  public String value() {
    return value;
  }

  public boolean exists() {
    return Objects.nonNull(value) && !value.isEmpty();
  }

  public int length() {
    if (!exists()) {
      return 0;
    }
    return value.length();
  }

  public boolean isShorterThan43() {
    if (!exists()) {
      return false;
    }
    return value.length() < 43;
  }

  public boolean isLongerThan128() {
    if (!exists()) {
      return false;
    }
    return value.length() > 128;
  }
}