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/*
 *
 * Copyright (c) 2013 - 2018 Lijun Liao
 *
 * 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.xipki.ca.server.mgmt.shell;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;

import org.apache.karaf.shell.api.action.Argument;
import org.apache.karaf.shell.api.action.Command;
import org.apache.karaf.shell.api.action.Completion;
import org.apache.karaf.shell.api.action.lifecycle.Service;
import org.xipki.ca.server.mgmt.api.PublisherEntry;
import org.xipki.ca.server.mgmt.shell.completer.PublisherNameCompleter;
import org.xipki.shell.CmdFailure;

/**
 * TODO.
 * @author Lijun Liao
 * @since 2.0.0
 */

@Command(scope = "ca", name = "publisher-info", description = "show information of publisher")
@Service
public class PublisherInfoAction extends CaAction {

  @Argument(index = 0, name = "name", description = "publisher name")
  @Completion(PublisherNameCompleter.class)
  private String name;

  @Override
  protected Object execute0() throws Exception {
    if (name == null) {
      Set names = caManager.getPublisherNames();
      int size = names.size();

      StringBuilder sb = new StringBuilder();
      if (size == 0 || size == 1) {
        sb.append((size == 0) ? "no" : "1");
        sb.append(" publisher is configured\n");
      } else {
        sb.append(size).append(" publishers are configured:\n");
      }

      List sorted = new ArrayList<>(names);
      Collections.sort(sorted);

      for (String entry : sorted) {
        sb.append("\t").append(entry).append("\n");
      }
      println(sb.toString());
    } else {
      PublisherEntry entry = caManager.getPublisher(name);
      if (entry == null) {
        throw new CmdFailure("\tno publisher named '" + name + "' is configured");
      } else {
        println(entry.toString());
      }
    }

    return null;
  } // method execute0

}