/*
 *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "webrtc/api/fakemetricsobserver.h"
#include "webrtc/base/checks.h"

namespace webrtc {

FakeMetricsObserver::FakeMetricsObserver() {
  Reset();
}

void FakeMetricsObserver::Reset() {
  RTC_DCHECK(thread_checker_.CalledOnValidThread());
  counters_.clear();
  memset(histogram_samples_, 0, sizeof(histogram_samples_));
}

void FakeMetricsObserver::IncrementEnumCounter(
    PeerConnectionEnumCounterType type,
    int counter,
    int counter_max) {
  RTC_DCHECK(thread_checker_.CalledOnValidThread());
  if (counters_.size() <= static_cast<size_t>(type)) {
    counters_.resize(type + 1);
  }
  auto& counters = counters_[type];
  ++counters[counter];
}

void FakeMetricsObserver::AddHistogramSample(PeerConnectionMetricsName type,
    int value) {
  RTC_DCHECK(thread_checker_.CalledOnValidThread());
  RTC_DCHECK_EQ(histogram_samples_[type], 0);
  histogram_samples_[type] = value;
}

int FakeMetricsObserver::GetEnumCounter(PeerConnectionEnumCounterType type,
                                        int counter) const {
  RTC_DCHECK(thread_checker_.CalledOnValidThread());
  if (counters_.size() <= static_cast<size_t>(type)) {
    return 0;
  }
  const auto& it = counters_[type].find(counter);
  if (it == counters_[type].end()) {
    return 0;
  }
  return it->second;
}

int FakeMetricsObserver::GetHistogramSample(
    PeerConnectionMetricsName type) const {
  RTC_DCHECK(thread_checker_.CalledOnValidThread());
  return histogram_samples_[type];
}

}  // namespace webrtc