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/*
 * Copyright IBM Corp. 2017 All Rights Reserved.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

package org.hyperledger.composer.bna.part;

import java.util.HashSet;
import java.util.Set;
import org.hyperledger.composer.bna.model.Model;

public class CtoPart extends BnaPart {

  private final Set dependencies;
  private String namespace;

  /**
   * constructor.
   *
   * @param namespace namespace of cto part
   */
  public CtoPart(String namespace) {
    super("models/" + namespace + ".cto");
    this.namespace = namespace;
    this.dependencies = new HashSet<>();
  }

  @Override
  public void addEntry(Object entry) {
    if (entry instanceof String) {
      dependencies.add((String) entry);
    } else if (entry instanceof Model) {
      super.addEntry(entry);
    }
  }

  @Override
  public String toString() {
    StringBuilder builder = new StringBuilder();
    builder.append("namespace ").append(namespace).append("\n");
    for (String dependency : dependencies) {
      builder.append("import ").append(dependency).append('\n');
    }
    for (Object model : entries) {
      builder.append('\n').append((model.toString()));
    }
    return builder.toString();
  }
}