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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/quick_pair/repository/fast_pair/device_address_map.h"
#include "ash/shell.h"
#include "base/values.h"
#include "components/cross_device/logging/logging.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/prefs/scoped_user_pref_update.h"
namespace ash::quick_pair {
// static
constexpr char DeviceAddressMap::kDeviceAddressMapPref[];
// static
void DeviceAddressMap::RegisterLocalStatePrefs(PrefRegistrySimple* registry) {
registry->RegisterDictionaryPref(kDeviceAddressMapPref);
}
DeviceAddressMap::DeviceAddressMap() = default;
DeviceAddressMap::~DeviceAddressMap() = default;
bool DeviceAddressMap::SaveModelIdForDevice(scoped_refptr<Device> device) {
if (!device->classic_address()) {
return false;
}
mac_address_to_model_id_[device->classic_address().value()] =
device->metadata_id();
return true;
}
bool DeviceAddressMap::PersistRecordsForDevice(scoped_refptr<Device> device) {
if (!device->classic_address()) {
return false;
}
return PersistMacAddressRecord(device->classic_address().value());
}
bool DeviceAddressMap::PersistMacAddressRecord(const std::string& mac_address) {
const std::string& model_id = mac_address_to_model_id_[mac_address];
if (model_id.empty()) {
CD_LOG(VERBOSE, Feature::FP)
<< __func__
<< ": Can't persist null mac address -> model ID record "
"for mac address: " +
mac_address;
return false;
}
PrefService* local_state = Shell::Get()->local_state();
if (!local_state) {
CD_LOG(WARNING, Feature::FP)
<< __func__ << ": No shell local state available.";
return false;
}
ScopedDictPrefUpdate device_address_map_dict(local_state,
kDeviceAddressMapPref);
if (!device_address_map_dict->Set(mac_address, model_id)) {
CD_LOG(VERBOSE, Feature::FP)
<< __func__
<< ": Failed to persist mac address -> model ID record for "
"mac address: " +
mac_address;
return false;
}
return true;
}
bool DeviceAddressMap::EvictMacAddressRecord(const std::string& mac_address) {
PrefService* local_state = Shell::Get()->local_state();
if (!local_state) {
CD_LOG(WARNING, Feature::FP)
<< __func__ << ": No shell local state available.";
return false;
}
ScopedDictPrefUpdate device_address_map_dict(local_state,
kDeviceAddressMapPref);
if (!device_address_map_dict->Remove(mac_address)) {
CD_LOG(VERBOSE, Feature::FP)
<< __func__
<< ": Failed to evict mac address -> model ID record from "
"prefs for mac address: " +
mac_address;
return false;
}
return true;
}
std::optional<const std::string> DeviceAddressMap::GetModelIdForMacAddress(
const std::string& mac_address) {
// Lazily load saved records from prefs the first time we get a model ID.
if (!loaded_records_from_prefs_) {
loaded_records_from_prefs_ = true;
LoadPersistedRecordsFromPrefs();
}
std::string& saved_model_id = mac_address_to_model_id_[mac_address];
if (saved_model_id.empty()) {
return std::nullopt;
}
return saved_model_id;
}
bool DeviceAddressMap::HasPersistedRecordsForModelId(
const std::string& model_id) {
CD_LOG(INFO, Feature::FP) << __func__;
PrefService* local_state = Shell::Get()->local_state();
if (!local_state) {
CD_LOG(WARNING, Feature::FP)
<< __func__ << ": No shell local state available.";
return false;
}
const base::Value::Dict& device_address_map_dict =
local_state->GetDict(kDeviceAddressMapPref);
for (std::pair<const std::string&, const base::Value&> record :
device_address_map_dict) {
if (record.second.GetString() == model_id) {
return true;
}
}
return false;
}
void DeviceAddressMap::RefreshCacheForTest() {
CD_LOG(INFO, Feature::FP) << __func__;
mac_address_to_model_id_.clear();
LoadPersistedRecordsFromPrefs();
}
void DeviceAddressMap::LoadPersistedRecordsFromPrefs() {
CD_LOG(INFO, Feature::FP) << __func__;
PrefService* local_state = Shell::Get()->local_state();
if (!local_state) {
CD_LOG(WARNING, Feature::FP)
<< __func__ << ": No shell local state available.";
return;
}
const base::Value::Dict& device_address_map_dict =
local_state->GetDict(kDeviceAddressMapPref);
for (std::pair<const std::string&, const base::Value&> record :
device_address_map_dict) {
mac_address_to_model_id_[record.first] = record.second.GetString();
}
}
} // namespace ash::quick_pair
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