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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/passage_embeddings/passage_embedder_model_observer_factory.h"
#include "chrome/browser/browser_process.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/passage_embeddings/chrome_passage_embeddings_service_controller.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_selections.h"
#include "components/keyed_service/core/service_access_type.h"
#include "components/passage_embeddings/passage_embedder_model_observer.h"
#include "components/passage_embeddings/passage_embeddings_features.h"
namespace passage_embeddings {
// static
PassageEmbedderModelObserver*
PassageEmbedderModelObserverFactory::GetForProfile(Profile* profile) {
return static_cast<PassageEmbedderModelObserver*>(
GetInstance()->GetServiceForBrowserContext(profile, /*create=*/true));
}
// static
PassageEmbedderModelObserverFactory*
PassageEmbedderModelObserverFactory::GetInstance() {
static base::NoDestructor<PassageEmbedderModelObserverFactory> instance;
return instance.get();
}
PassageEmbedderModelObserverFactory::PassageEmbedderModelObserverFactory()
: 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(OptimizationGuideKeyedServiceFactory::GetInstance());
}
PassageEmbedderModelObserverFactory::~PassageEmbedderModelObserverFactory() =
default;
std::unique_ptr<KeyedService>
PassageEmbedderModelObserverFactory::BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const {
if (!base::FeatureList::IsEnabled(kPassageEmbedder) &&
!history_embeddings::IsHistoryEmbeddingsFeatureEnabled()) {
return nullptr;
}
Profile* profile = Profile::FromBrowserContext(context);
// When the history embeddings feature is on, observe launched target even
// when in the experiment group, as we never want to use both models at once.
// Observe launched target by default, as the user could opt in at any time.
return std::make_unique<PassageEmbedderModelObserver>(
OptimizationGuideKeyedServiceFactory::GetForProfile(profile),
ChromePassageEmbeddingsServiceController::Get(),
/*experimental=*/base::FeatureList::IsEnabled(kPassageEmbedder) &&
!history_embeddings::IsHistoryEmbeddingsEnabledForProfile(profile));
}
} // namespace passage_embeddings
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