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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/video_conference/video_conference_ukm_helper.h"
#include <cstdint>
#include <optional>
#include "base/check.h"
#include "base/time/time.h"
#include "chrome/browser/chromeos/video_conference/video_conference_manager_client_common.h"
#include "chrome/browser/chromeos/video_conference/video_conference_web_app.h"
#include "services/metrics/public/cpp/metrics_utils.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "services/metrics/public/cpp/ukm_source_id.h"
namespace video_conference {
VideoConferenceUkmHelper::VideoConferenceUkmHelper(
ukm::UkmRecorder* ukm_recorder,
ukm::SourceId source_id)
: ukm_recorder_(ukm_recorder),
source_id_(source_id),
start_time_(base::Time::Now()) {
CHECK(ukm_recorder_);
}
VideoConferenceUkmHelper::~VideoConferenceUkmHelper() {
// Finish recording durations for any remaining captures.
if (prev_camera_capture_time_) {
UpdateCameraCaptureDuration();
}
if (prev_microphone_capture_time_) {
UpdateMicrophoneCaptureDuration();
}
if (prev_screen_capture_time_) {
UpdateScreenCaptureDuration();
}
auto total_duration = (base::Time::Now() - start_time_).InMilliseconds();
// A `VideoConferenceWebApp` (which owns `this`) is only created if a
// webcontents captures camera/microphone/screen at least once so we do not
// need to check for that.
ukm::builders::VideoConferencingEvent(source_id_)
.SetDidCaptureCamera(did_capture_camera_)
.SetDidCaptureMicrophone(did_capture_microphone_)
.SetDidCaptureScreen(did_capture_screen_)
.SetCameraCaptureDuration(
ukm::GetSemanticBucketMinForDurationTiming(camera_capture_duration_))
.SetMicrophoneCaptureDuration(ukm::GetSemanticBucketMinForDurationTiming(
microphone_capture_duration_))
.SetScreenCaptureDuration(
ukm::GetSemanticBucketMinForDurationTiming(screen_capture_duration_))
.SetTotalDuration(
ukm::GetSemanticBucketMinForDurationTiming(total_duration))
.Record(ukm_recorder_);
}
void VideoConferenceUkmHelper::RegisterCapturingUpdate(
VideoConferenceMediaType device,
bool is_capturing) {
switch (device) {
case VideoConferenceMediaType::kCamera: {
if (!prev_camera_capture_time_.has_value() && is_capturing) {
// Camera changed from not capturing to capturing.
did_capture_camera_ = true;
prev_camera_capture_time_ = base::Time::Now();
} else if (prev_camera_capture_time_.has_value() && !is_capturing) {
// Camera changed from capturing to not capturing.
UpdateCameraCaptureDuration();
}
break;
}
case VideoConferenceMediaType::kMicrophone: {
if (!prev_microphone_capture_time_.has_value() && is_capturing) {
// Microphone changed from not capturing to capturing.
did_capture_microphone_ = true;
prev_microphone_capture_time_ = base::Time::Now();
} else if (prev_microphone_capture_time_.has_value() && !is_capturing) {
// Microphone changed from capturing to not capturing.
UpdateMicrophoneCaptureDuration();
}
break;
}
case VideoConferenceMediaType::kScreen: {
if (!prev_screen_capture_time_.has_value() && is_capturing) {
// Screen changed from not capturing to capturing.
did_capture_screen_ = true;
prev_screen_capture_time_ = base::Time::Now();
} else if (prev_screen_capture_time_.has_value() && !is_capturing) {
// Screen changed from capturing to not capturing.
UpdateScreenCaptureDuration();
}
break;
}
}
}
void VideoConferenceUkmHelper::UpdateCameraCaptureDuration() {
DCHECK(prev_camera_capture_time_) << "VideoConferenceUkmHelper update cannot "
"compute duration without start time.";
auto duration =
(base::Time::Now() - *prev_camera_capture_time_).InMilliseconds();
camera_capture_duration_ += duration;
prev_camera_capture_time_ = std::nullopt;
}
void VideoConferenceUkmHelper::UpdateMicrophoneCaptureDuration() {
DCHECK(prev_microphone_capture_time_)
<< "VideoConferenceUkmHelper update cannot compute duration without "
"start time.";
auto duration =
(base::Time::Now() - *prev_microphone_capture_time_).InMilliseconds();
microphone_capture_duration_ += duration;
prev_microphone_capture_time_ = std::nullopt;
}
void VideoConferenceUkmHelper::UpdateScreenCaptureDuration() {
DCHECK(prev_screen_capture_time_)
<< "VideoConferenceUkmHelper update cannot compute duration without "
"start time.";
auto duration =
(base::Time::Now() - *prev_screen_capture_time_).InMilliseconds();
screen_capture_duration_ += duration;
prev_screen_capture_time_ = std::nullopt;
}
} // namespace video_conference
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