[ads] Followup to "Smart NTT" #41303

browser/brave_ads/BUILD.gn

@@ -19,6 +19,7 @@ source_set("brave_ads") {
     "//chrome/browser/profiles:profile",
     "//components/keyed_service/content",
     "//components/prefs",
+    "//components/search_engines",
     "//components/sessions:session_id",
     "//content/public/browser",
   ]

browser/brave_ads/ads_service_delegate.cc

@@ -7,13 +7,16 @@
 
 #include <utility>
 
+#include "base/strings/utf_string_conversions.h"
 #include "brave/browser/brave_ads/ad_units/notification_ad/notification_ad_platform_bridge.h"
 #include "brave/browser/brave_ads/application_state/notification_helper/notification_helper.h"
 #include "brave/browser/ui/brave_ads/notification_ad.h"
 #include "brave/components/brave_adaptive_captcha/brave_adaptive_captcha_service.h"
 #include "build/build_config.h"
 #include "chrome/browser/notifications/notification_display_service.h"
 #include "chrome/browser/profiles/profile.h"
+#include "components/search_engines/template_url_prepopulate_data.h"
+
 #if BUILDFLAG(IS_ANDROID)
 #include "brave/browser/notifications/brave_notification_platform_bridge_helper_android.h"
 #include "chrome/browser/android/service_tab_launcher.h"
@@ -29,12 +32,15 @@ namespace brave_ads {
 
 AdsServiceDelegate::AdsServiceDelegate(
     Profile* profile,
+    PrefService* local_state,
     brave_adaptive_captcha::BraveAdaptiveCaptchaService*
         adaptive_captcha_service,
     NotificationDisplayService* notification_display_service,
     std::unique_ptr<NotificationAdPlatformBridge>
         notification_ad_platform_bridge)
     : profile_(profile),
+      local_state_(local_state),
+      search_engine_choice_service_(*profile_->GetPrefs(), local_state_),
       adaptive_captcha_service_(adaptive_captcha_service),
       notification_display_service_(notification_display_service),
       notification_ad_platform_bridge_(
@@ -132,4 +138,18 @@ bool AdsServiceDelegate::IsFullScreenMode() {
   return ::IsFullScreenMode();
 }
 #endif
+
+base::Value::Dict AdsServiceDelegate::GetVirtualPrefs() {
+  const auto template_url_data =
+      TemplateURLPrepopulateData::GetPrepopulatedFallbackSearch(
+          profile_->GetPrefs(), &search_engine_choice_service_);
+  if (!template_url_data) {
+    return {};
+  }
+
+  return base::Value::Dict().Set(
+      "[virtual]:default_search_engine.name",
+      base::UTF16ToUTF8(template_url_data->short_name()));
+}
+
 }  // namespace brave_ads

browser/brave_ads/ads_service_delegate.h

@@ -10,7 +10,10 @@
 #include <string>
 
 #include "base/memory/raw_ptr.h"
+#include "base/values.h"
 #include "brave/components/brave_ads/browser/ads_service.h"
+#include "components/prefs/pref_service.h"
+#include "components/search_engines/search_engine_choice/search_engine_choice_service.h"
 
 class Profile;
 
@@ -29,18 +32,21 @@ class AdsServiceDelegate : public AdsService::Delegate {
  public:
   explicit AdsServiceDelegate(
       Profile* profile,
+      PrefService* local_state,
       brave_adaptive_captcha::BraveAdaptiveCaptchaService*
           adaptive_captcha_service,
       NotificationDisplayService* notification_display_service,
       std::unique_ptr<NotificationAdPlatformBridge>
           notification_ad_platform_bridge);
-  ~AdsServiceDelegate() override;
+
   AdsServiceDelegate(const AdsServiceDelegate&) = delete;
   AdsServiceDelegate& operator=(const AdsServiceDelegate&) = delete;
 
   AdsServiceDelegate(AdsServiceDelegate&&) noexcept = delete;
   AdsServiceDelegate& operator=(AdsServiceDelegate&&) noexcept = delete;
 
+  ~AdsServiceDelegate() override;
+
   // AdsService::Delegate implementation
   void InitNotificationHelper() override;
   bool CanShowSystemNotificationsWhileBrowserIsBackgrounded() override;
@@ -64,11 +70,16 @@ class AdsServiceDelegate : public AdsService::Delegate {
 #else
   bool IsFullScreenMode() override;
 #endif
+
+  base::Value::Dict GetVirtualPrefs() override;
+
  private:
-  raw_ptr<Profile> profile_;
+  raw_ptr<Profile> profile_ = nullptr;
+  raw_ptr<PrefService> local_state_ = nullptr;
+  search_engines::SearchEngineChoiceService search_engine_choice_service_;
   raw_ptr<brave_adaptive_captcha::BraveAdaptiveCaptchaService>
-      adaptive_captcha_service_;
-  raw_ptr<NotificationDisplayService> notification_display_service_;
+      adaptive_captcha_service_ = nullptr;
+  raw_ptr<NotificationDisplayService> notification_display_service_ = nullptr;
   std::unique_ptr<NotificationAdPlatformBridge>
       notification_ad_platform_bridge_;
 };

browser/brave_ads/ads_service_factory.cc

@@ -77,7 +77,8 @@ AdsServiceFactory::BuildServiceInstanceForBrowserContext(
           ->GetForProfile(profile);
   auto* display_service = NotificationDisplayService::GetForProfile(profile);
   auto* delegate = new AdsServiceDelegate(
-      profile, brave_adaptive_captcha_service, display_service,
+      profile, g_browser_process->local_state(), brave_adaptive_captcha_service,
+      display_service,
       std::make_unique<NotificationAdPlatformBridge>(*profile));
 
   auto* history_service = HistoryServiceFactory::GetInstance()->GetForProfile(

components/brave_ads/browser/ads_service.h

@@ -54,6 +54,9 @@ class AdsService : public KeyedService {
 #else
     virtual bool IsFullScreenMode() = 0;
 #endif
+
+    virtual base::Value::Dict GetVirtualPrefs() = 0;
+
    protected:
     virtual ~Delegate() = default;
   };
@@ -71,6 +74,8 @@ class AdsService : public KeyedService {
   virtual void AddObserver(AdsServiceObserver* observer) = 0;
   virtual void RemoveObserver(AdsServiceObserver* observer) = 0;
 
+  virtual Delegate* GetDelegate() = 0;
+
   // Returns true if a browser upgrade is required to serve ads.
   virtual bool IsBrowserUpgradeRequiredToServeAds() const = 0;
 

components/brave_ads/browser/ads_service_impl.cc

@@ -1104,6 +1104,10 @@ void AdsServiceImpl::AddBatAdsObserver(
   }
 }
 
+AdsService::Delegate* AdsServiceImpl::GetDelegate() {
+  return delegate_;
+}
+
 bool AdsServiceImpl::IsBrowserUpgradeRequiredToServeAds() const {
   return browser_upgrade_required_to_serve_ads_;
 }
@@ -1824,6 +1828,10 @@ void AdsServiceImpl::HasLocalStatePrefPath(
   std::move(callback).Run(local_state_->HasPrefPath(path));
 }
 
+void AdsServiceImpl::GetVirtualPrefs(GetVirtualPrefsCallback callback) {
+  std::move(callback).Run(delegate_->GetVirtualPrefs());
+}
+
 void AdsServiceImpl::Log(const std::string& file,
                          const int32_t line,
                          const int32_t verbose_level,

components/brave_ads/browser/ads_service_impl.h

@@ -218,6 +218,8 @@ class AdsServiceImpl final : public AdsService,
   void AddBatAdsObserver(mojo::PendingRemote<bat_ads::mojom::BatAdsObserver>
                              bat_ads_observer_pending_remote) override;
 
+  Delegate* GetDelegate() override;
+
   bool IsBrowserUpgradeRequiredToServeAds() const override;
 
   int64_t GetMaximumNotificationAdsPerHour() const override;
@@ -386,6 +388,8 @@ class AdsServiceImpl final : public AdsService,
   void HasLocalStatePrefPath(const std::string& path,
                              HasLocalStatePrefPathCallback callback) override;
 
+  void GetVirtualPrefs(GetVirtualPrefsCallback callback) override;
+
   void Log(const std::string& file,
            int32_t line,
            int32_t verbose_level,

components/brave_ads/browser/ads_service_mock.h

@@ -33,6 +33,8 @@ class AdsServiceMock : public AdsService {
   MOCK_METHOD(void, AddObserver, (AdsServiceObserver * observer));
   MOCK_METHOD(void, RemoveObserver, (AdsServiceObserver * observer));
 
+  MOCK_METHOD(AdsService::Delegate*, GetDelegate, ());
+
   MOCK_METHOD(void,
               AddBatAdsObserver,
               (mojo::PendingRemote<bat_ads::mojom::BatAdsObserver>

components/brave_ads/core/internal/ads_client/ads_client_mock.h

@@ -116,6 +116,8 @@ class AdsClientMock : public AdsClient {
   MOCK_METHOD(void, ClearLocalStatePref, (const std::string& path));
   MOCK_METHOD(bool, HasLocalStatePrefPath, (const std::string& path), (const));
 
+  MOCK_METHOD(base::Value::Dict, GetVirtualPrefs, (), (const));
+
   MOCK_METHOD(void,
               Log,
               (const char* file,

components/brave_ads/core/internal/ads_client/ads_client_pref_provider.cc

@@ -54,4 +54,17 @@ bool AdsClientPrefProvider::HasLocalStatePrefPath(
   return GetAdsClient()->HasLocalStatePrefPath(pref_path);
 }
 
+std::optional<base::Value> AdsClientPrefProvider::GetVirtualPref(
+    const std::string& pref_path) const {
+  if (pref_path.starts_with(kVirtualPrefPathPrefix)) {
+    const base::Value::Dict virtual_prefs = GetAdsClient()->GetVirtualPrefs();
+    if (const base::Value* const value = virtual_prefs.Find(pref_path)) {
+      return value->Clone();
+    }
+  }
+
+  // The virtual preference does not exist.
+  return std::nullopt;
+}
+
 }  // namespace brave_ads

components/brave_ads/core/internal/ads_client/ads_client_pref_provider.h

@@ -34,6 +34,9 @@ class AdsClientPrefProvider : public PrefProviderInterface {
   std::optional<base::Value> GetLocalStatePref(
       const std::string& pref_path) const override;
   bool HasLocalStatePrefPath(const std::string& pref_path) const override;
+
+  std::optional<base::Value> GetVirtualPref(
+      const std::string& pref_path) const override;
 };
 
 }  // namespace brave_ads

components/brave_ads/core/internal/prefs/pref_provider.cc

@@ -5,13 +5,18 @@
 
 #include "brave/components/brave_ads/core/public/prefs/pref_provider.h"
 
+#include <utility>
+
 #include "components/prefs/pref_service.h"
 
 namespace brave_ads {
 
 PrefProvider::PrefProvider(PrefService* const profile_prefs,
-                           PrefService* const local_state_prefs)
-    : profile_prefs_(profile_prefs), local_state_prefs_(local_state_prefs) {
+                           PrefService* const local_state_prefs,
+                           base::Value::Dict virtual_prefs)
+    : profile_prefs_(profile_prefs),
+      local_state_prefs_(local_state_prefs),
+      virtual_prefs_(std::move(virtual_prefs)) {
   CHECK(profile_prefs_);
   CHECK(local_state_prefs_);
 }
@@ -46,4 +51,16 @@ bool PrefProvider::HasLocalStatePrefPath(const std::string& pref_path) const {
   return local_state_prefs_->HasPrefPath(pref_path);
 }
 
+std::optional<base::Value> PrefProvider::GetVirtualPref(
+    const std::string& pref_path) const {
+  if (pref_path.starts_with(kVirtualPrefPathPrefix)) {
+    if (const base::Value* const value = virtual_prefs_.Find(pref_path)) {
+      return value->Clone();
+    }
+  }
+
+  // The virtual preference does not exist.
+  return std::nullopt;
+}
+
 }  // namespace brave_ads

components/brave_ads/core/internal/serving/eligible_ads/pipelines/new_tab_page_ads/eligible_new_tab_page_ads_v2.cc

@@ -10,7 +10,6 @@
 #include <vector>
 
 #include "base/functional/bind.h"
-#include "brave/components/brave_ads/core/internal/ads_client/ads_client_pref_provider.h"
 #include "brave/components/brave_ads/core/internal/ads_client/ads_client_util.h"
 #include "brave/components/brave_ads/core/internal/common/logging_util.h"
 #include "brave/components/brave_ads/core/internal/serving/eligible_ads/eligible_ads_feature.h"
@@ -26,19 +25,6 @@
 
 namespace brave_ads {
 
-namespace {
-
-void ApplyConditionMatcher(CreativeNewTabPageAdList& creative_ads) {
-  const AdsClientPrefProvider pref_provider;
-  std::erase_if(creative_ads, [&pref_provider](const auto& creative_ad) {
-    return creative_ad.wallpapers.size() != 1 ||
-           !MatchConditions(&pref_provider,
-                            creative_ad.wallpapers[0].condition_matchers);
-  });
-}
-
-}  // namespace
-
 EligibleNewTabPageAdsV2::EligibleNewTabPageAdsV2(
     const SubdivisionTargeting& subdivision_targeting,
     const AntiTargetingResource& anti_targeting_resource)
@@ -152,6 +138,15 @@ void EligibleNewTabPageAdsV2::FilterAndMaybePredictCreativeAd(
   std::move(callback).Run(/*eligible_ads=*/{});
 }
 
+void EligibleNewTabPageAdsV2::ApplyConditionMatcher(
+    CreativeNewTabPageAdList& creative_ads) {
+  std::erase_if(creative_ads, [this](const auto& creative_ad) {
+    return creative_ad.wallpapers.size() != 1 ||
+           !MatchConditions(&pref_provider_,
+                            creative_ad.wallpapers[0].condition_matchers);
+  });
+}
+
 void EligibleNewTabPageAdsV2::FilterIneligibleCreativeAds(
     CreativeNewTabPageAdList& creative_ads,
     const AdEventList& ad_events,

components/brave_ads/core/internal/serving/eligible_ads/pipelines/new_tab_page_ads/eligible_new_tab_page_ads_v2.h

@@ -7,6 +7,7 @@
 #define BRAVE_COMPONENTS_BRAVE_ADS_CORE_INTERNAL_SERVING_ELIGIBLE_ADS_PIPELINES_NEW_TAB_PAGE_ADS_ELIGIBLE_NEW_TAB_PAGE_ADS_V2_H_
 
 #include "base/memory/weak_ptr.h"
+#include "brave/components/brave_ads/core/internal/ads_client/ads_client_pref_provider.h"
 #include "brave/components/brave_ads/core/internal/creatives/new_tab_page_ads/creative_new_tab_page_ad_info.h"
 #include "brave/components/brave_ads/core/internal/creatives/new_tab_page_ads/creative_new_tab_page_ads_database_table.h"
 #include "brave/components/brave_ads/core/internal/segments/segment_alias.h"
@@ -51,6 +52,8 @@ class EligibleNewTabPageAdsV2 final : public EligibleNewTabPageAdsBase {
       const SegmentList& segments,
       const CreativeNewTabPageAdList& creative_ads);
 
+  void ApplyConditionMatcher(CreativeNewTabPageAdList& creative_ads);
+
   void FilterAndMaybePredictCreativeAd(
       const UserModelInfo& user_model,
       const CreativeNewTabPageAdList& creative_ads,
@@ -65,6 +68,8 @@ class EligibleNewTabPageAdsV2 final : public EligibleNewTabPageAdsBase {
 
   const database::table::AdEvents ad_events_database_table_;
 
+  const AdsClientPrefProvider pref_provider_;
+
   base::WeakPtrFactory<EligibleNewTabPageAdsV2> weak_factory_{this};
 };
 

components/brave_ads/core/internal/serving/new_tab_page_ad_serving_condition_matcher_util_internal.cc

@@ -38,6 +38,10 @@ std::optional<base::Value> MaybeGetRootPrefValue(
     const std::string& pref_path) {
   CHECK(pref_provider);
 
+  if (pref_path.starts_with(kVirtualPrefPathPrefix)) {
+    return pref_provider->GetVirtualPref(pref_path);
+  }
+
   if (std::optional<base::Value> pref_value =
           pref_provider->GetProfilePref(pref_path)) {
     return pref_value;

components/brave_ads/core/internal/serving/new_tab_page_ad_serving_condition_matcher_util_internal_unittest.cc

@@ -290,6 +290,29 @@ TEST_F(BraveAdsNewTabPageAdServingConditionMatcherUtilInternalTest,
   EXPECT_FALSE(MatchRegex("foo.baz.bar", "bar.*.foo"));
 }
 
+TEST_F(BraveAdsNewTabPageAdServingConditionMatcherUtilInternalTest,
+       GetVirtualPrefValue) {
+  // Arrange
+  ON_CALL(ads_client_mock_, GetVirtualPrefs).WillByDefault([]() {
+    return base::Value::Dict().Set("[virtual]:matrix", /*room*/ 303);
+  });
+
+  // Act & Assert
+  EXPECT_EQ(base::Value(/*room*/ 303),
+            MaybeGetPrefValue(&pref_provider_, "[virtual]:matrix"));
+}
+
+TEST_F(BraveAdsNewTabPageAdServingConditionMatcherUtilInternalTest,
+       DoNotGetUnknownVirtualPrefValue) {
+  // Arrange
+  ON_CALL(ads_client_mock_, GetVirtualPrefs).WillByDefault([]() {
+    return base::Value::Dict().Set("[virtual]:inverse.matrices", /*room*/ 101);
+  });
+
+  // Act & Assert
+  EXPECT_FALSE(MaybeGetPrefValue(&pref_provider_, "[virtual]:matrix"));
+}
+
 TEST_F(BraveAdsNewTabPageAdServingConditionMatcherUtilInternalTest,
        GetBooleanProfilePrefValue) {
   // Arrange

components/brave_ads/core/public/ads_client/ads_client.h

@@ -161,6 +161,9 @@ class ADS_EXPORT AdsClient {
   // preference `path`.
   virtual bool HasLocalStatePrefPath(const std::string& path) const = 0;
 
+  // Get the virtual preferences.
+  virtual base::Value::Dict GetVirtualPrefs() const = 0;
+
   // Log a `message` to `file` and the console log with `line` and
   // `verbose_level`.
   virtual void Log(const char* file,