/*
    * 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.maven.surefire.group.match;
  
  import java.util.regex.Pattern;
  import java.util.regex.PatternSyntaxException;
  
  /**
   * Single group matcher
   *
   */
  public class SingleGroupMatcher implements GroupMatcher {
      private final String enabled;
      private final Pattern pattern;
  
      private Class<?> enabledClass;
  
      public SingleGroupMatcher(String enabled) {
          this.enabled = enabled.endsWith(".class") ? enabled.substring(0, enabled.length() - 6) : enabled;
          Pattern p;
          try {
              p = Pattern.compile(enabled);
          } catch (PatternSyntaxException e) {
              p = null;
          }
          pattern = p;
      }
  
      @Override
      public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + enabled.hashCode();
          return result;
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj) {
              return true;
          }
          if (obj == null) {
              return false;
          }
          if (getClass() != obj.getClass()) {
              return false;
          }
          SingleGroupMatcher other = (SingleGroupMatcher) obj;
          return enabled.equals(other.enabled);
      }
  
      @Override
      public String toString() {
          return "*" + enabled;
      }
  
      @Override
      public boolean enabled(Class<?>... cats) {
          if (cats != null) {
              for (Class<?> cls : cats) {
                  if (enabledClass != null && enabledClass.isAssignableFrom(cls)) {
                      return true;
                  }
  
                  String name = cls.getName();
                  if (name.endsWith(enabled)) {
                      return true;
                  }
              }
          }
  
          return false;
      }
  
      @Override
      public boolean enabled(String... cats) {
          for (String cat : cats) {
              if (cat == null || cat.trim().isEmpty()) {
                  continue;
              }
  
              if (cat.equals(enabled)) {
                  return true;
             }
 
             if (pattern != null && pattern.matcher(cat).matches()) {
                 return true;
             }
         }
 
         return false;
     }
 
     @Override
     public void loadGroupClasses(ClassLoader classLoader) {
         try {
             enabledClass = classLoader.loadClass(enabled);
         } catch (ClassNotFoundException e) {
             // class is not available at runtime, for instance this would happen in reactor projects
             // in which not all modules have the required class on the classpath/module path
             System.out.println("[WARNING] Couldn't load group class '" + enabled + "' in Surefire|Failsafe plugin. "
                     + "The group class is ignored!");
         }
     }
 }