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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/kiosk/vision/telemetry_processor.h"
#include <utility>
#include <vector>
#include "base/containers/circular_deque.h"
#include "base/containers/to_vector.h"
#include "components/reporting/proto/synced/metric_data.pb.h"
#include "media/capture/video/chromeos/mojom/cros_camera_service.mojom-forward.h"
#include "media/capture/video/chromeos/mojom/cros_camera_service.mojom.h"
namespace ash::kiosk_vision {
namespace {
// TODO(b/320669284): Reconsider once the telemetry API consumer is implemented.
constexpr int kMaxDequeSize = 10;
// Caps `deque` to `kMaxDequeSize` by removing elements from the front.
template <typename T>
void CapToMaxSize(base::circular_deque<T>& deque) {
if (deque.size() <= kMaxDequeSize) {
return;
}
int to_be_erased = deque.size() - kMaxDequeSize;
deque.erase(deque.begin(), deque.begin() + to_be_erased);
}
} // namespace
TelemetryProcessor::TelemetryProcessor() = default;
TelemetryProcessor::~TelemetryProcessor() = default;
::reporting::TelemetryData TelemetryProcessor::GenerateTelemetryData() {
::reporting::TelemetryData telemetry_data;
// TODO(b/343029419): Use actual telemetry data.
telemetry_data.mutable_kiosk_vision_telemetry();
telemetry_data.mutable_kiosk_vision_status();
return telemetry_data;
}
std::vector<int> TelemetryProcessor::TakeIdsProcessed() {
return base::ToVector(std::exchange(latest_ids_processed_, {}));
}
std::vector<cros::mojom::KioskVisionError> TelemetryProcessor::TakeErrors() {
return ToVector(std::exchange(latest_errors_, {}));
}
void TelemetryProcessor::OnFrameProcessed(
const cros::mojom::KioskVisionDetection& detection) {
for (const auto& a : detection.appearances) {
latest_ids_processed_.push_back(a->person_id);
}
CapToMaxSize(latest_ids_processed_);
}
void TelemetryProcessor::OnTrackCompleted(
const cros::mojom::KioskVisionTrack& track) {
latest_ids_processed_.push_back(track.appearances[0]->person_id);
CapToMaxSize(latest_ids_processed_);
}
void TelemetryProcessor::OnError(cros::mojom::KioskVisionError error) {
latest_errors_.push_back(error);
CapToMaxSize(latest_errors_);
}
} // namespace ash::kiosk_vision
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