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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_utils.h"
#include "chrome/browser/browser_process.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/profiles/profile.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "components/history_embeddings/history_embeddings_features.h"
#include "components/optimization_guide/core/feature_registry/feature_registration.h"
#include "components/optimization_guide/core/model_execution/model_execution_prefs.h"
#include "components/optimization_guide/core/model_execution/model_execution_util.h"
#include "components/optimization_guide/core/optimization_guide_features.h"
#include "components/prefs/pref_service.h"
#include "components/strings/grit/components_strings.h"
#include "components/variations/service/variations_service.h"
#include "content/public/browser/web_ui_data_source.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chromeos/constants/chromeos_features.h"
#endif
namespace history_embeddings {
namespace {
// Returns the country code from the variations service.
std::string GetCountryCode(variations::VariationsService* variations_service) {
std::string country_code;
// The variations service may be nullptr in unit tests.
if (variations_service) {
country_code = variations_service->GetStoredPermanentCountry();
if (country_code.empty()) {
country_code = variations_service->GetLatestCountry();
}
}
return country_code;
}
bool IsCountryAndLocale(const std::string& country, const std::string& locale) {
return g_browser_process &&
g_browser_process->GetApplicationLocale() == locale &&
GetCountryCode(g_browser_process->variations_service()) == country;
}
} // namespace
constexpr auto kEnabledByDefaultForDesktopOnly =
#if BUILDFLAG(IS_ANDROID)
base::FEATURE_DISABLED_BY_DEFAULT;
#else
base::FEATURE_ENABLED_BY_DEFAULT;
#endif
// These are the kill switches for the launched history embeddings features.
BASE_FEATURE(kLaunchedHistoryEmbeddings,
"LaunchedHistoryEmbeddings",
kEnabledByDefaultForDesktopOnly);
BASE_FEATURE(kLaunchedHistoryEmbeddingsAnswers,
"LaunchedHistoryEmbeddingsAnswers",
kEnabledByDefaultForDesktopOnly);
bool IsHistoryEmbeddingsEnabledForProfile(Profile* profile) {
if (!IsHistoryEmbeddingsFeatureEnabled()) {
return false;
}
OptimizationGuideKeyedService* optimization_guide_keyed_service =
OptimizationGuideKeyedServiceFactory::GetForProfile(profile);
return optimization_guide_keyed_service &&
optimization_guide_keyed_service
->ShouldFeatureBeCurrentlyEnabledForUser(
optimization_guide::UserVisibleFeatureKey::kHistorySearch);
}
bool IsHistoryEmbeddingsAnswersEnabledForProfile(Profile* profile) {
if (!IsHistoryEmbeddingsAnswersFeatureEnabled()) {
return false;
}
if (optimization_guide::
GetGenAILocalFoundationalModelEnterprisePolicySettings(
g_browser_process->local_state()) ==
optimization_guide::model_execution::prefs::
GenAILocalFoundationalModelEnterprisePolicySettings::kDisallowed) {
return false;
}
OptimizationGuideKeyedService* optimization_guide_keyed_service =
OptimizationGuideKeyedServiceFactory::GetForProfile(profile);
return optimization_guide_keyed_service &&
optimization_guide_keyed_service
->ShouldFeatureAllowModelExecutionForSignedInUser(
optimization_guide::UserVisibleFeatureKey::kHistorySearch);
}
bool IsHistoryEmbeddingsSettingVisible(Profile* profile) {
if (!IsHistoryEmbeddingsFeatureEnabled()) {
return false;
}
OptimizationGuideKeyedService* optimization_guide_keyed_service =
OptimizationGuideKeyedServiceFactory::GetForProfile(profile);
return optimization_guide_keyed_service &&
optimization_guide_keyed_service->IsSettingVisible(
optimization_guide::UserVisibleFeatureKey::kHistorySearch);
}
bool IsHistoryEmbeddingsAnswersSettingVisible(Profile* profile) {
if (!IsHistoryEmbeddingsAnswersFeatureEnabled()) {
return false;
}
OptimizationGuideKeyedService* optimization_guide_keyed_service =
OptimizationGuideKeyedServiceFactory::GetForProfile(profile);
return optimization_guide_keyed_service &&
optimization_guide_keyed_service
->ShouldModelExecutionBeAllowedForUser();
}
void PopulateSourceForWebUI(content::WebUIDataSource* source,
Profile* profile) {
source->AddBoolean("enableHistoryEmbeddingsAnswers",
IsHistoryEmbeddingsAnswersEnabledForProfile(profile));
source->AddBoolean(
"enableHistoryEmbeddingsImages",
history_embeddings::GetFeatureParameters().enable_images_for_results);
static constexpr webui::LocalizedString kHistoryEmbeddingsStrings[] = {
{"foundSearchResults", IDS_HISTORY_FOUND_SEARCH_RESULTS},
{"historyEmbeddingsSearchPrompt", IDS_HISTORY_EMBEDDINGS_SEARCH_PROMPT},
{"historyEmbeddingsHeading", IDS_HISTORY_EMBEDDINGS_HEADING},
{"historyEmbeddingsWithAnswersResultsHeading",
IDS_HISTORY_EMBEDDINGS_WITH_ANSWERS_RESULTS_HEADING},
{"historyEmbeddingsHeadingLoading",
IDS_HISTORY_EMBEDDINGS_HEADING_LOADING},
{"historyEmbeddingsFooter", IDS_HISTORY_EMBEDDINGS_FOOTER},
{"learnMore", IDS_LEARN_MORE},
{"thumbsUp", IDS_THUMBS_UP_RESULTS_A11Y_LABEL},
{"thumbsDown", IDS_THUMBS_DOWN_OPENS_FEEDBACK_FORM_A11Y_LABEL},
{"historyEmbeddingsAnswerHeading", IDS_HISTORY_EMBEDDINGS_ANSWER_HEADING},
{"historyEmbeddingsAnswerLoadingHeading",
IDS_HISTORY_EMBEDDINGS_ANSWER_LOADING_HEADING},
{"historyEmbeddingsAnswerSourceDate",
IDS_HISTORY_EMBEDDINGS_ANSWER_SOURCE_VISIT_DATE_LABEL},
{"historyEmbeddingsAnswererErrorModelUnavailable",
IDS_HISTORY_EMBEDDINGS_ANSWERER_ERROR_MODEL_UNAVAILABLE},
{"historyEmbeddingsAnswererErrorTryAgain",
IDS_HISTORY_EMBEDDINGS_ANSWERER_ERROR_TRY_AGAIN},
{"historyEmbeddingsMatch", IDS_HISTORY_SEARCH_EMBEDDINGS_MATCH_RESULT},
{"historyEmbeddingsMatches", IDS_HISTORY_SEARCH_EMBEDDINGS_MATCH_RESULTS},
};
source->AddLocalizedStrings(kHistoryEmbeddingsStrings);
source->AddInteger("historyEmbeddingsSearchMinimumWordCount",
history_embeddings::GetFeatureParameters()
.search_query_minimum_word_count);
source->AddString("historyEmbeddingsSettingsUrl",
chrome::kHistorySearchSettingURL);
bool logging_disabled_by_enterprise =
profile->GetPrefs()->GetInteger(
optimization_guide::prefs::kHistorySearchEnterprisePolicyAllowed) ==
static_cast<int>(
optimization_guide::model_execution::prefs::
ModelExecutionEnterprisePolicyValue::kAllowWithoutLogging);
if (logging_disabled_by_enterprise) {
source->AddLocalizedString("historyEmbeddingsDisclaimer",
IDS_HISTORY_EMBEDDINGS_DISCLAIMER_LOGGING_OFF);
} else {
source->AddLocalizedString("historyEmbeddingsDisclaimer",
IDS_HISTORY_EMBEDDINGS_DISCLAIMER);
}
}
bool IsHistoryEmbeddingsFeatureEnabled() {
#if BUILDFLAG(IS_CHROMEOS)
if (!chromeos::features::IsFeatureManagementHistoryEmbeddingEnabled()) {
return false;
}
#endif
// If the feature is overridden manually or via Finch, return its value.
if (base::FeatureList::GetStateIfOverridden(kHistoryEmbeddings).has_value()) {
return base::FeatureList::IsEnabled(kHistoryEmbeddings);
}
// Otherwise return true for "us" and "en-US", leaving a Finch hook just in
// case.
return IsCountryAndLocale("us", "en-US") &&
base::FeatureList::IsEnabled(kLaunchedHistoryEmbeddings);
}
bool IsHistoryEmbeddingsAnswersFeatureEnabled() {
if (!IsHistoryEmbeddingsFeatureEnabled()) {
return false;
}
// If the feature is overridden manually or via Finch, return its value.
if (base::FeatureList::GetStateIfOverridden(kHistoryEmbeddingsAnswers)
.has_value()) {
return base::FeatureList::IsEnabled(kHistoryEmbeddingsAnswers);
}
// Otherwise return true for "us" and "en-US", leaving a Finch hook just in
// case.
return IsCountryAndLocale("us", "en-US") &&
base::FeatureList::IsEnabled(kLaunchedHistoryEmbeddingsAnswers);
}
} // namespace history_embeddings
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