// Copyright 2016 The Domain Registry 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 com.google.domain.registry.tools;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.domain.registry.model.ofy.ObjectifyService.ofy;

import com.google.domain.registry.model.EppResource;
import com.google.domain.registry.tools.Command.RemoteApiCommand;

import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;
import com.googlecode.objectify.Key;

import java.util.List;

/**
 * Command to get info on a datastore resource by websafe key.
 */
@Parameters(separators = " =")
final class GetResourceByKeyCommand implements RemoteApiCommand {

  @Parameter(
      description = "Websafe key string(s)",
      required = true)
  private List<String> mainParameters;

  @Parameter(
      names = "--expand",
      description = "Fully expand the requested resource. NOTE: Output may be lengthy.")
  boolean expand;

  @Override
  public void run() {
    for (String keyString : mainParameters) {
      System.out.println("\n");
      Key<EppResource> resourceKey = checkNotNull(
          Key.<EppResource>create(keyString), "Could not parse key string: " + keyString);
      EppResource resource = checkNotNull(
          ofy().load().key(resourceKey).now(), "Could not load resource for key: " + resourceKey);
      System.out.println(expand ? resource.toHydratedString() : resource.toString());
    }
  }
}