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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/feed_internals/feed_internals_page_handler.h"
#include <string>
#include <utility>
#include "base/feature_list.h"
#include "base/metrics/statistics_recorder.h"
#include "base/time/time.h"
#include "chrome/browser/android/feed/feed_debugging_bridge.h"
#include "chrome/browser/android/feed/feed_lifecycle_bridge.h"
#include "components/feed/content/feed_host_service.h"
#include "components/feed/content/feed_offline_host.h"
#include "components/feed/core/feed_scheduler_host.h"
#include "components/feed/core/pref_names.h"
#include "components/feed/core/user_classifier.h"
#include "components/feed/feed_feature_list.h"
#include "components/offline_pages/core/prefetch/prefetch_prefs.h"
#include "components/offline_pages/core/prefetch/suggestions_provider.h"
#include "components/prefs/pref_service.h"
namespace {
const char kFeedHistogramPrefix[] = "ContentSuggestions.Feed.";
feed_internals::mojom::TimePtr ToMojoTime(base::Time time) {
return time.is_null() ? nullptr
: feed_internals::mojom::Time::New(time.ToJsTime());
}
std::string TriggerTypeToString(feed::FeedSchedulerHost::TriggerType* trigger) {
if (trigger == nullptr)
return "Not set";
switch (*trigger) {
case feed::FeedSchedulerHost::TriggerType::kNtpShown:
return "NTP Shown";
case feed::FeedSchedulerHost::TriggerType::kForegrounded:
return "Foregrounded";
case feed::FeedSchedulerHost::TriggerType::kFixedTimer:
return "Fixed Timer";
}
}
} // namespace
FeedInternalsPageHandler::FeedInternalsPageHandler(
feed_internals::mojom::PageHandlerRequest request,
feed::FeedHostService* feed_host_service,
PrefService* pref_service)
: binding_(this, std::move(request)),
feed_scheduler_host_(feed_host_service->GetSchedulerHost()),
feed_offline_host_(feed_host_service->GetOfflineHost()),
pref_service_(pref_service) {}
FeedInternalsPageHandler::~FeedInternalsPageHandler() = default;
void FeedInternalsPageHandler::GetGeneralProperties(
GetGeneralPropertiesCallback callback) {
auto properties = feed_internals::mojom::Properties::New();
properties->is_feed_enabled =
base::FeatureList::IsEnabled(feed::kInterestFeedContentSuggestions);
properties->is_feed_visible =
pref_service_->GetBoolean(feed::prefs::kArticlesListVisible);
properties->is_feed_allowed = IsFeedAllowed();
properties->is_prefetching_enabled =
offline_pages::prefetch_prefs::IsEnabled(pref_service_);
properties->feed_fetch_url = feed::GetFeedFetchUrlForDebugging();
std::move(callback).Run(std::move(properties));
}
void FeedInternalsPageHandler::GetUserClassifierProperties(
GetUserClassifierPropertiesCallback callback) {
auto properties = feed_internals::mojom::UserClassifier::New();
feed::UserClassifier* user_classifier =
feed_scheduler_host_->GetUserClassifierForDebugging();
properties->user_class_description =
user_classifier->GetUserClassDescriptionForDebugging();
properties->avg_hours_between_views = user_classifier->GetEstimatedAvgTime(
feed::UserClassifier::Event::kSuggestionsViewed);
properties->avg_hours_between_uses = user_classifier->GetEstimatedAvgTime(
feed::UserClassifier::Event::kSuggestionsUsed);
std::move(callback).Run(std::move(properties));
}
void FeedInternalsPageHandler::GetLastFetchProperties(
GetLastFetchPropertiesCallback callback) {
auto properties = feed_internals::mojom::LastFetchProperties::New();
properties->last_fetch_status =
feed_scheduler_host_->GetLastFetchStatusForDebugging();
properties->last_fetch_trigger = TriggerTypeToString(
feed_scheduler_host_->GetLastFetchTriggerTypeForDebugging());
properties->last_fetch_time =
ToMojoTime(pref_service_->GetTime(feed::prefs::kLastFetchAttemptTime));
properties->refresh_suppress_time =
ToMojoTime(feed_scheduler_host_->GetSuppressRefreshesUntilForDebugging());
std::move(callback).Run(std::move(properties));
}
void FeedInternalsPageHandler::ClearUserClassifierProperties() {
feed_scheduler_host_->GetUserClassifierForDebugging()
->ClearClassificationForDebugging();
}
void FeedInternalsPageHandler::ClearCachedDataAndRefreshFeed() {
feed::FeedLifecycleBridge::ClearCachedData();
}
void FeedInternalsPageHandler::RefreshFeed() {
feed::TriggerRefreshForDebugging();
}
void FeedInternalsPageHandler::GetCurrentContent(
GetCurrentContentCallback callback) {
if (!IsFeedAllowed()) {
std::move(callback).Run(
std::vector<feed_internals::mojom::SuggestionPtr>());
return;
}
feed_offline_host_->GetCurrentArticleSuggestions(base::BindOnce(
&FeedInternalsPageHandler::OnGetCurrentArticleSuggestionsDone,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
}
void FeedInternalsPageHandler::OnGetCurrentArticleSuggestionsDone(
GetCurrentContentCallback callback,
std::vector<offline_pages::PrefetchSuggestion> results) {
std::vector<feed_internals::mojom::SuggestionPtr> suggestions;
for (offline_pages::PrefetchSuggestion result : results) {
auto suggestion = feed_internals::mojom::Suggestion::New();
suggestion->title = std::move(result.article_title);
suggestion->url = std::move(result.article_url);
suggestion->publisher_name = std::move(result.article_attribution);
suggestion->image_url = std::move(result.thumbnail_url);
suggestion->favicon_url = std::move(result.favicon_url);
suggestions.push_back(std::move(suggestion));
}
std::move(callback).Run(std::move(suggestions));
}
void FeedInternalsPageHandler::GetFeedProcessScopeDump(
GetFeedProcessScopeDumpCallback callback) {
std::move(callback).Run(feed::GetFeedProcessScopeDumpForDebugging());
}
bool FeedInternalsPageHandler::IsFeedAllowed() {
return pref_service_->GetBoolean(feed::prefs::kEnableSnippets);
}
void FeedInternalsPageHandler::GetFeedHistograms(
GetFeedHistogramsCallback callback) {
std::string log;
base::StatisticsRecorder::WriteGraph(kFeedHistogramPrefix, &log);
std::move(callback).Run(log);
}
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