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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "camera_general_survey_handler.h"
#include <optional>
#include "base/feature_list.h"
#include "base/logging.h"
#include "base/metrics/field_trial_params.h"
#include "base/strings/string_split.h"
#include "base/system/sys_info.h"
#include "base/time/time.h"
#include "chrome/browser/ash/hats/hats_config.h"
#include "chrome/browser/ash/hats/hats_notification_controller.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "media/capture/video/chromeos/mojom/cros_camera_service.mojom-shared.h"
namespace ash {
namespace {
constexpr base::TimeDelta kMinCameraOpenDurationForSurvey = base::Seconds(15);
constexpr base::TimeDelta kCameraSurveyTriggerDelay = base::Seconds(5);
constexpr char kEnabledModelsParam[] = "enabled_models";
} // namespace
class CameraGeneralSurveyHandlerDelegate
: public CameraGeneralSurveyHandler::Delegate {
public:
CameraGeneralSurveyHandlerDelegate() = default;
~CameraGeneralSurveyHandlerDelegate() override = default;
CameraGeneralSurveyHandlerDelegate(
const CameraGeneralSurveyHandlerDelegate&) = delete;
CameraGeneralSurveyHandlerDelegate& operator=(
const CameraGeneralSurveyHandlerDelegate&) = delete;
void AddActiveCameraClientObserver(
media::CameraActiveClientObserver* observer) override {
media::CameraHalDispatcherImpl::GetInstance()->AddActiveClientObserver(
observer);
}
void RemoveActiveCameraClientObserver(
media::CameraActiveClientObserver* observer) override {
media::CameraHalDispatcherImpl::GetInstance()->RemoveActiveClientObserver(
observer);
}
void LoadConfig() override {
base::SysInfo::GetHardwareInfo(base::BindOnce(
&CameraGeneralSurveyHandlerDelegate::OnHardwareInfoFetched,
weak_ptr_factory_.GetWeakPtr()));
}
bool ShouldShowSurvey() const override {
if (!hw_info_.has_value()) {
LOG(ERROR) << "Unable to show camera HaTS because HW info is empty!";
return false;
}
return HatsNotificationController::ShouldShowSurveyToProfile(
ProfileManager::GetActiveUserProfile(), *GetHatsConfig());
}
void ShowSurvey() override {
base::flat_map<std::string, std::string> survey_data = {
{"board", hw_info_->board}, {"model", hw_info_->model}};
Profile* profile = ProfileManager::GetActiveUserProfile();
hats_notification_controller_ =
base::MakeRefCounted<HatsNotificationController>(
profile, *GetHatsConfig(), survey_data);
}
private:
void OnHardwareInfoFetched(base::SysInfo::HardwareInfo info) {
hw_info_ = {
.board = base::SysInfo::GetLsbReleaseBoard(),
.model = info.model,
};
}
const raw_ref<const HatsConfig> GetHatsConfig() const {
if (base::FeatureList::IsEnabled(
kHatsGeneralCameraPrioritizedSurvey.feature) &&
hw_info_.has_value()) {
std::vector<std::string> prioritized_models = base::SplitString(
base::GetFieldTrialParamValueByFeature(
kHatsGeneralCameraPrioritizedSurvey.feature, kEnabledModelsParam),
";", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
if (std::find(prioritized_models.begin(), prioritized_models.end(),
hw_info_->model) != prioritized_models.end()) {
return raw_ref<const HatsConfig>(kHatsGeneralCameraPrioritizedSurvey);
}
}
return raw_ref<const HatsConfig>(kHatsGeneralCameraSurvey);
}
std::optional<CameraGeneralSurveyHandler::HardwareInfo> hw_info_ =
std::nullopt;
scoped_refptr<HatsNotificationController> hats_notification_controller_;
base::WeakPtrFactory<CameraGeneralSurveyHandlerDelegate> weak_ptr_factory_{
this};
};
CameraGeneralSurveyHandler::CameraGeneralSurveyHandler()
: CameraGeneralSurveyHandler(
base::FeatureList::IsEnabled(kHatsGeneralCameraSurvey.feature),
std::make_unique<CameraGeneralSurveyHandlerDelegate>(),
kMinCameraOpenDurationForSurvey,
kCameraSurveyTriggerDelay) {}
CameraGeneralSurveyHandler::CameraGeneralSurveyHandler(
bool is_enabled,
std::unique_ptr<Delegate> delegate,
base::TimeDelta min_usage_duration,
base::TimeDelta trigger_delay)
: min_usage_duration_(min_usage_duration),
trigger_delay_(trigger_delay),
is_enabled_(is_enabled),
delegate_(std::move(delegate)) {
if (!is_enabled_) {
return;
}
camera_observer_.Observe(delegate_.get());
delegate_->LoadConfig();
}
CameraGeneralSurveyHandler::~CameraGeneralSurveyHandler() = default;
void CameraGeneralSurveyHandler::TriggerSurvey() {
delegate_->ShowSurvey();
has_triggered_ = true;
}
void CameraGeneralSurveyHandler::OnActiveClientChange(
cros::mojom::CameraClientType type,
bool is_new_active_client,
const base::flat_set<std::string>& active_device_ids) {
if (has_triggered_) {
return;
}
if (is_new_active_client) {
// Event: a camera is open.
open_at_ = base::TimeTicks::Now();
// Cancel showing survey if a camera is reopened.
timer_.Stop();
} else if (!is_new_active_client && active_device_ids.empty()) {
// Event: the last open camera is now closed.
auto now = base::TimeTicks::Now();
auto elapsed = now - open_at_;
if (elapsed < min_usage_duration_) {
return;
}
if (delegate_->ShouldShowSurvey()) {
timer_.Start(FROM_HERE, trigger_delay_,
base::BindOnce(&CameraGeneralSurveyHandler::TriggerSurvey,
weak_ptr_factory_.GetWeakPtr()));
}
}
}
} // namespace ash
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