/*
    * 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.junitcore;
  
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Map;
  import java.util.concurrent.ConcurrentLinkedQueue;
  import java.util.concurrent.atomic.AtomicBoolean;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.maven.surefire.api.report.ReportEntry;
  import org.apache.maven.surefire.api.report.RunMode;
  import org.apache.maven.surefire.api.report.SimpleReportEntry;
  import org.apache.maven.surefire.api.report.TestOutputReportEntry;
  import org.apache.maven.surefire.api.report.TestReportListener;
  import org.apache.maven.surefire.api.report.TestSetReportEntry;
  import org.apache.maven.surefire.report.ClassMethodIndexer;
  
  import static org.apache.maven.surefire.api.util.internal.ObjectUtils.systemProps;
  
  /**
   * * Represents the test-state of a testset that is run.
   */
  @Deprecated // remove this class after StatelessXmlReporter is capable of parallel test sets processing
  public class TestSet {
      private static final InheritableThreadLocal<TestSet> TEST_SET = new InheritableThreadLocal<>();
  
      private final String testClassName;
  
      private final Collection<TestMethod> testMethods = new ConcurrentLinkedQueue<>();
  
      private final AtomicBoolean played = new AtomicBoolean();
  
      private final AtomicInteger numberOfCompletedChildren = new AtomicInteger();
  
      // While the two parameters may seem duplicated, it is not entirely the case,
      // since numberOfTests has the correct value from the start, while testMethods grows as method execution starts.
  
      private final AtomicInteger numberOfTests = new AtomicInteger();
  
      private final RunMode runMode;
  
      private final ClassMethodIndexer classMethodIndexer;
  
      private volatile boolean allScheduled;
  
      public TestSet(String testClassName, RunMode runMode, ClassMethodIndexer classMethodIndexer) {
          this.testClassName = testClassName;
          this.runMode = runMode;
          this.classMethodIndexer = classMethodIndexer;
      }
  
      final RunMode getRunMode() {
          return runMode;
      }
  
      final ClassMethodIndexer getClassMethodIndexer() {
          return classMethodIndexer;
      }
  
      public void replay(TestReportListener<TestOutputReportEntry> target) {
          if (played.compareAndSet(false, true)) {
              try {
                  TestSetReportEntry report = createReportEntryStarted();
  
                  target.testSetStarting(report);
  
                  long startTime = 0;
                  long endTime = 0;
                  for (TestMethod testMethod : testMethods) {
                      if (startTime == 0 || testMethod.getStartTime() < startTime) {
                          startTime = testMethod.getStartTime();
                      }
  
                      if (endTime == 0 || testMethod.getEndTime() > endTime) {
                          endTime = testMethod.getEndTime();
                      }
  
                      testMethod.replay(target);
                  }
  
                  int elapsed = (int) (endTime - startTime);
 
                 report = createReportEntryCompleted(elapsed);
 
                 target.testSetCompleted(report);
             } catch (Exception e) {
                 throw new RuntimeException(e);
             }
         }
     }
 
     public TestMethod createThreadAttachedTestMethod(ReportEntry description) {
         TestMethod testMethod = new TestMethod(description, this);
         addTestMethod(testMethod);
         testMethod.attachToThread();
         return testMethod;
     }
 
     private TestSetReportEntry createReportEntryStarted() {
         return createReportEntry(null, Collections.<String, String>emptyMap());
     }
 
     private TestSetReportEntry createReportEntryCompleted(int elapsed) {
         return createReportEntry(elapsed, systemProps());
     }
 
     private TestSetReportEntry createReportEntry(Integer elapsed, Map<String, String> systemProps) {
         return new SimpleReportEntry(
                 runMode,
                 classMethodIndexer.indexClass(testClassName),
                 testClassName,
                 null,
                 testClassName,
                 null,
                 null,
                 elapsed,
                 systemProps);
     }
 
     public void incrementTestMethodCount() {
         numberOfTests.incrementAndGet();
     }
 
     private void addTestMethod(TestMethod testMethod) {
         testMethods.add(testMethod);
     }
 
     public void incrementFinishedTests(TestReportListener reporterManager, boolean reportImmediately) {
         numberOfCompletedChildren.incrementAndGet();
         if (allScheduled && isAllTestsDone() && reportImmediately) {
             replay(reporterManager);
         }
     }
 
     public void setAllScheduled(TestReportListener reporterManager) {
         allScheduled = true;
         if (isAllTestsDone()) {
             replay(reporterManager);
         }
     }
 
     private boolean isAllTestsDone() {
         return numberOfTests.get() == numberOfCompletedChildren.get();
     }
 
     public void attachToThread() {
         TEST_SET.set(this);
     }
 
     public static TestSet getThreadTestSet() {
         return TEST_SET.get();
     }
 }