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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/history_clusters/core/noisy_cluster_finalizer.h"
#include "components/history_clusters/core/cluster_metrics_utils.h"
#include "components/history_clusters/core/config.h"
#include "components/history_clusters/core/on_device_clustering_features.h"
#include "components/history_clusters/core/on_device_clustering_util.h"
namespace history_clusters {
NoisyClusterFinalizer::NoisyClusterFinalizer() = default;
NoisyClusterFinalizer::~NoisyClusterFinalizer() = default;
void NoisyClusterFinalizer::FinalizeCluster(history::Cluster& cluster) {
size_t interesting_visit_cnt = 0;
ScopedFilterClusterMetricsRecorder metrics_recorder("NoisyCluster");
for (const auto& visit : cluster.visits) {
if (!IsNoisyVisit(visit)) {
// Use the canonical visit's noisiness for all its duplicates too.
interesting_visit_cnt += 1 + visit.duplicate_visits.size();
}
if (interesting_visit_cnt >=
GetConfig().number_interesting_visits_filter_threshold) {
return;
}
}
// If we check all the visits in the cluster and all have high engagement
// scores, then it's probably not interesting so we can hide it.
cluster.should_show_on_prominent_ui_surfaces = false;
metrics_recorder.set_was_filtered(true);
}
} // namespace history_clusters
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