/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.apache.myfaces.tobago.apt.generate;
  
  import java.util.TreeSet;
  import java.util.Set;
  
  
  public class Imports {
  
    private Set<String> imports = new TreeSet<>();
  
    private String packageName;
  
    public Imports() {
    }
  
    public Imports(final String packageName) {
      this.packageName = packageName;
    }
  
    public void addImport(final String qualifiedName) {
      if (!ClassUtils.isSystemClass(qualifiedName) && !ClassUtils.isPrimitive(qualifiedName)) {
        if (!(packageName != null && packageName.equals(ClassUtils.getPackageName(qualifiedName)))) {
          final int index = qualifiedName.lastIndexOf('$');
          final String name = index != -1 ? qualifiedName.substring(0, index) : qualifiedName;
          if (!imports.contains(name)) {
            imports.add(name);
          }
        }
      }
    }
  
    public void addImports(final Imports newImports) {
      for (final String qualifiedName : newImports.imports) {
        addImport(qualifiedName);
      }
    }
  
    public boolean contains(final String qualifiedClassName) {
      return imports.contains(qualifiedClassName);
    }
  
    public Set<String> getImports() {
      return imports;
    }
  
  }