/**
  * @RDE_HEADER@
  * AvaTimelineTest
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Fröbel, NLSE, 2018-03-28
  */

#include "ava_timeline_test.h"
#include <AudioVideoManagement/ava_types.h>
#include <initializer_list>
#include <utility>
#include <algorithm>

using namespace AudioVideoManagement;

namespace
{

/**
 * Small helper so that we can easily craeate a AvaTimeline from a list of int-pairs.
 */
AvaTimeline   makeTimeline(std::initializer_list<std::pair<int, int>> v)
{
  AvaTimeline   timeline;
  std::for_each(v.begin(), v.end(), [&timeline] (const std::pair<int, int> &p) { timeline.append({AvaTimePoint(AvaDuration{p.first}), AvaTimePoint(AvaDuration{p.second})}); });
  return timeline;
}

} // anonymous namespace


void AvaTimelineTest::testMergeEmpty()
{
  const AvaTimeline   timeline1 = makeTimeline({ {1, 2}, {3, 4} });
  AvaTimeline         timeline2 = timeline1;
  AvaTimeline         empty;
  timeline2.merge(empty);
  QCOMPARE(timeline2, timeline1);

  empty.merge(timeline1);
  QCOMPARE(empty, timeline1);
}

void AvaTimelineTest::testMergeSelf()
{
  const AvaTimeline   timeline1 = makeTimeline({ {1, 2}, {3, 4} });
  AvaTimeline         timeline2 = timeline1;
  timeline2.merge(timeline2);
  QCOMPARE(timeline2, timeline1);
}

void AvaTimelineTest::testMergeDisjunct()
{
  AvaTimeline    timeline1 = makeTimeline({ {1, 2} });
  AvaTimeline    timeline2 = makeTimeline({ {3, 4} });

  timeline1.merge(timeline2);
  AvaTimeline    expected = makeTimeline({ {1, 2}, {3, 4}});
  QCOMPARE(timeline1, expected);
}

void AvaTimelineTest::testMergeWithin()
{
  AvaTimeline    timeline1 = makeTimeline({ {1, 4} });
  AvaTimeline    timeline2 = makeTimeline({ {2, 3} });

  timeline1.merge(timeline2);
  AvaTimeline    expected = makeTimeline({ {1, 4} });
  QCOMPARE(timeline1, expected);
}

void AvaTimelineTest::testMergeOverlap()
{
  AvaTimeline    timeline1 = makeTimeline({ {1, 3} });
  AvaTimeline    timeline2 = makeTimeline({ {2, 4} });

  timeline1.merge(timeline2);
  AvaTimeline    expected = makeTimeline({ {1, 4} });
  QCOMPARE(timeline1, expected);
}

void AvaTimelineTest::testMergeEdgeOverlap()
{
  AvaTimeline    timeline1 = makeTimeline({ {1, 2} });
  AvaTimeline    timeline2 = makeTimeline({ {2, 3} });

  timeline1.merge(timeline2);
  AvaTimeline    expected = makeTimeline({ {1, 3} });
  QCOMPARE(timeline1, expected);
}