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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 "chrome/browser/history_embeddings/history_embeddings_service_factory.h"
#include "build/build_config.h"
#include "chrome/browser/app_mode/app_mode_utils.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/history/history_service_factory.h"
#include "chrome/browser/history_embeddings/chrome_history_embeddings_service.h"
#include "chrome/browser/history_embeddings/history_embeddings_utils.h"
#include "chrome/browser/optimization_guide/optimization_guide_keyed_service.h"
#include "chrome/browser/optimization_guide/optimization_guide_keyed_service_factory.h"
#include "chrome/browser/page_content_annotations/page_content_annotations_service_factory.h"
#include "chrome/browser/passage_embeddings/chrome_passage_embeddings_service_controller.h"
#include "chrome/browser/passage_embeddings/passage_embedder_model_observer_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_attributes_entry.h"
#include "chrome/browser/profiles/profile_attributes_storage.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "components/history/core/browser/history_service.h"
#include "components/history_embeddings/history_embeddings_features.h"
#include "components/history_embeddings/history_embeddings_service.h"
#include "components/history_embeddings/ml_answerer.h"
#include "components/history_embeddings/ml_intent_classifier.h"
#include "components/history_embeddings/mock_answerer.h"
#include "components/history_embeddings/mock_intent_classifier.h"
#include "components/keyed_service/core/service_access_type.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/ash/profiles/profile_helper.h"
#endif
namespace {
bool IsEphemeralProfile(Profile* profile) {
#if BUILDFLAG(IS_CHROMEOS)
if (ash::ProfileHelper::IsEphemeralUserProfile(profile)) {
return true;
}
#endif
// Catch additional logic that may not be caught by the existing Ash check.
ProfileAttributesStorage& storage =
g_browser_process->profile_manager()->GetProfileAttributesStorage();
ProfileAttributesEntry* entry =
storage.GetProfileAttributesWithPath(profile->GetPath());
return entry && entry->IsEphemeral();
}
bool ShouldBuildServiceInstance(Profile* profile) {
// Do NOT construct the service if the feature flag is disabled.
if (!history_embeddings::IsHistoryEmbeddingsFeatureEnabled()) {
return false;
}
// Embeddings don't last long enough to help users in kiosk or ephemeral
// profile mode, so simply never construct the service for those users.
if (IsRunningInAppMode() || IsEphemeralProfile(profile)) {
return false;
}
return true;
}
} // namespace
// static
history_embeddings::HistoryEmbeddingsService*
HistoryEmbeddingsServiceFactory::GetForProfile(Profile* profile) {
return static_cast<history_embeddings::HistoryEmbeddingsService*>(
GetInstance()->GetServiceForBrowserContext(profile, /*create=*/true));
}
// static
HistoryEmbeddingsServiceFactory*
HistoryEmbeddingsServiceFactory::GetInstance() {
static base::NoDestructor<HistoryEmbeddingsServiceFactory> instance;
return instance.get();
}
// static
std::unique_ptr<KeyedService> HistoryEmbeddingsServiceFactory::
BuildServiceInstanceForBrowserContextForTesting(
content::BrowserContext* context,
passage_embeddings::EmbedderMetadataProvider*
embedder_metadata_provider,
passage_embeddings::Embedder* embedder,
std::unique_ptr<history_embeddings::Answerer> answerer,
std::unique_ptr<history_embeddings::IntentClassifier>
intent_classifier) {
Profile* profile = Profile::FromBrowserContext(context);
if (!ShouldBuildServiceInstance(profile)) {
return nullptr;
}
return std::make_unique<history_embeddings::ChromeHistoryEmbeddingsService>(
profile,
HistoryServiceFactory::GetForProfile(profile,
ServiceAccessType::EXPLICIT_ACCESS),
PageContentAnnotationsServiceFactory::GetForProfile(profile),
OptimizationGuideKeyedServiceFactory::GetForProfile(profile),
embedder_metadata_provider, embedder, std::move(answerer),
std::move(intent_classifier));
}
HistoryEmbeddingsServiceFactory::HistoryEmbeddingsServiceFactory()
: ProfileKeyedServiceFactory(
"HistoryEmbeddingsService",
ProfileSelections::Builder()
.WithRegular(ProfileSelection::kOriginalOnly)
// TODO(crbug.com/41488885): Check if this service is needed for
// Ash Internals.
.WithAshInternals(ProfileSelection::kOriginalOnly)
.Build()) {
DependsOn(HistoryServiceFactory::GetInstance());
DependsOn(PageContentAnnotationsServiceFactory::GetInstance());
DependsOn(OptimizationGuideKeyedServiceFactory::GetInstance());
DependsOn(
passage_embeddings::PassageEmbedderModelObserverFactory::GetInstance());
}
HistoryEmbeddingsServiceFactory::~HistoryEmbeddingsServiceFactory() = default;
std::unique_ptr<KeyedService>
HistoryEmbeddingsServiceFactory::BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const {
Profile* profile = Profile::FromBrowserContext(context);
if (!ShouldBuildServiceInstance(profile)) {
return nullptr;
}
OptimizationGuideKeyedService* optimization_guide_keyed_service =
OptimizationGuideKeyedServiceFactory::GetForProfile(profile);
auto* passage_embeddings_service_controller =
passage_embeddings::ChromePassageEmbeddingsServiceController::Get();
std::unique_ptr<history_embeddings::Answerer> answerer;
if (history_embeddings::IsHistoryEmbeddingsAnswersFeatureEnabled()) {
if (history_embeddings::GetFeatureParameters().use_ml_answerer) {
answerer = std::make_unique<history_embeddings::MlAnswerer>(
optimization_guide_keyed_service,
optimization_guide_keyed_service
->GetModelQualityLogsUploaderService());
} else {
answerer = std::make_unique<history_embeddings::MockAnswerer>();
}
}
std::unique_ptr<history_embeddings::IntentClassifier> intent_classifier;
if (history_embeddings::GetFeatureParameters().enable_intent_classifier) {
if (history_embeddings::GetFeatureParameters().use_ml_intent_classifier) {
intent_classifier =
std::make_unique<history_embeddings::MlIntentClassifier>(
optimization_guide_keyed_service);
} else {
intent_classifier =
std::make_unique<history_embeddings::MockIntentClassifier>();
}
}
return std::make_unique<history_embeddings::ChromeHistoryEmbeddingsService>(
profile,
HistoryServiceFactory::GetForProfile(profile,
ServiceAccessType::EXPLICIT_ACCESS),
PageContentAnnotationsServiceFactory::GetForProfile(profile),
optimization_guide_keyed_service, passage_embeddings_service_controller,
passage_embeddings_service_controller->GetEmbedder(), std::move(answerer),
std::move(intent_classifier));
}
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