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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.
#ifndef COMPONENTS_PLUS_ADDRESSES_WEBDATA_PLUS_ADDRESS_SYNC_BRIDGE_H_
#define COMPONENTS_PLUS_ADDRESSES_WEBDATA_PLUS_ADDRESS_SYNC_BRIDGE_H_
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ref.h"
#include "base/memory/scoped_refptr.h"
#include "components/plus_addresses/plus_address_types.h"
#include "components/sync/model/data_type_sync_bridge.h"
class WebDatabaseBackend;
namespace plus_addresses {
class PlusAddressDataChange;
class PlusAddressTable;
class PlusAddressSyncBridge : public syncer::DataTypeSyncBridge {
public:
using DataChangedBySyncCallback = base::RepeatingCallback<void(
std::vector<PlusAddressDataChange> /*changes*/)>;
PlusAddressSyncBridge(
std::unique_ptr<syncer::DataTypeLocalChangeProcessor> change_processor,
scoped_refptr<WebDatabaseBackend> db_backend,
DataChangedBySyncCallback notify_data_changed_by_sync);
~PlusAddressSyncBridge() override;
PlusAddressSyncBridge(const PlusAddressSyncBridge&) = delete;
PlusAddressSyncBridge& operator=(const PlusAddressSyncBridge&) = delete;
// syncer::DataTypeSyncBridge:
std::unique_ptr<syncer::MetadataChangeList> CreateMetadataChangeList()
override;
std::optional<syncer::ModelError> MergeFullSyncData(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
syncer::EntityChangeList entity_data) override;
std::optional<syncer::ModelError> ApplyIncrementalSyncChanges(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
syncer::EntityChangeList entity_changes) override;
void ApplyDisableSyncChanges(std::unique_ptr<syncer::MetadataChangeList>
delete_metadata_change_list) override;
std::unique_ptr<syncer::DataBatch> GetDataForCommit(
StorageKeyList storage_keys) override;
std::unique_ptr<syncer::DataBatch> GetAllDataForDebugging() override;
bool IsEntityDataValid(const syncer::EntityData& entity_data) const override;
std::string GetClientTag(
const syncer::EntityData& entity_data) const override;
std::string GetStorageKey(
const syncer::EntityData& entity_data) const override;
private:
PlusAddressTable* GetPlusAddressTable();
// `PlusAddressTable` implements `syncer::SyncMetadataStore` and stores
// metadata for PLUS_ADDRESS. To ensures that metadata and model data is
// committed in a single transaction, `CreateMetadataChangeList()` is
// implemented using an `InMemoryMetadataChangeList`. This function transfers
// the changes from the `metadata_change_list` to `GetPlusAddressTable()`. It
// assumes that `metadata_change_list` was created using the bridge's
// `CreateMetadataChangeList()`.
std::optional<syncer::ModelError> TransferMetadataChanges(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list);
// Used to access the `WebDatabase` and its `PlusAddressTable`.
// Depending on the entire `WebDatabaseBackend` is unnecessary, given that
// only `WebDatabase` is used. However, since only the backend is ref-counted,
// arguing about the lifetime is easier this way.
const scoped_refptr<WebDatabaseBackend> db_backend_;
// The bridges writes to the database directly (rather than through
// `PlusAddressWebDataService`). Whenever it does, it notifies observers
// about these changes through this callback.
DataChangedBySyncCallback notify_data_changed_by_sync_;
};
} // namespace plus_addresses
#endif // COMPONENTS_PLUS_ADDRESSES_WEBDATA_PLUS_ADDRESS_SYNC_BRIDGE_H_
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