<reponame>doolse/Equella
/*
 * Copyright 2017 Apereo
 *
 * 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 com.dytech.edge.admin.wizard.walkers;

import com.dytech.edge.admin.wizard.Validation;
import com.dytech.edge.admin.wizard.model.Control;
import com.tle.common.applet.client.ClientService;

/** @author <NAME> */
public class ValidateControls extends ControlTreeWalker {
  private final ClientService clientService;

  private Control invalidControl;

  public ValidateControls(ClientService clientService) {
    this.clientService = clientService;
  }

  public boolean errorDetected() {
    return invalidControl != null;
  }

  /** @return Returns the first invalid control, or null if they are all valid. */
  public Control getInvalidControl() {
    return invalidControl;
  }

  @Override
  protected boolean onDescent(Control control) {
    boolean isValid = Validation.validateControl(control, clientService);
    if (!isValid) {
      invalidControl = control;
    }
    return isValid;
  }
}
