/*
    * 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.addthis.codec.plugins;
  
  import com.google.common.annotations.Beta;
  
  @Beta
  public final class Plugins {
      private Plugins() {}
  
      public static String classNameSuggestions(PluginRegistry pluginRegistry,
                                                PluginMap pluginMap,
                                                String type) {
          StringBuilder builder = new StringBuilder();
  
          builder.append("Could not instantiate an instance of the ")
                 .append(pluginMap.category()).append(" category that you have specified")
                 .append(" with \"").append(type).append("\".");
  
          if (pluginRegistry != null) {
              for (PluginMap otherMap : pluginRegistry.asMap().values()) {
                  if (otherMap.asBiMap().containsKey(type)) {
                      builder.append("\nIt looks like you tried to instantiate a ")
                             .append(otherMap.category()).append('.');
                      return builder.toString();
                  }
              }
          }
  
          builder.append("\nPerhaps you intended one of the following: ")
                 .append(pluginMap.asBiMap().keySet());
          return builder.toString();
      }
  }