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// Copyright 2022 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_POWER_BOOKMARKS_STORAGE_POWER_BOOKMARK_SYNC_METADATA_DATABASE_H_
#define COMPONENTS_POWER_BOOKMARKS_STORAGE_POWER_BOOKMARK_SYNC_METADATA_DATABASE_H_
#include <string>
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "components/sync/base/data_type.h"
#include "components/sync/model/sync_metadata_store.h"
#include "sql/meta_table.h"
namespace sql {
class Database;
class MetaTable;
} // namespace sql
namespace syncer {
class MetadataBatch;
} // namespace syncer
namespace power_bookmarks {
class PowerBookmarkSyncMetadataDatabaseTest;
// A sync metadata database maintains two things: the entity metadata table and
// the datatype state, stored in the MetaTable. The entity metadata table
// contains metadata (sync states) for each entity. The datatype state is the
// overall state of the power bookmarks datatype.
class PowerBookmarkSyncMetadataDatabase : public syncer::SyncMetadataStore {
public:
// After construction, Init() must be called before doing anything else to
// make sure the database is initialized.
PowerBookmarkSyncMetadataDatabase(sql::Database* db,
sql::MetaTable* meta_table);
PowerBookmarkSyncMetadataDatabase(const PowerBookmarkSyncMetadataDatabase&) =
delete;
PowerBookmarkSyncMetadataDatabase& operator=(
const PowerBookmarkSyncMetadataDatabase&) = delete;
~PowerBookmarkSyncMetadataDatabase() override;
// Makes sure the tables and indices are properly set up. Must be called
// before anything else.
bool Init();
// syncer::SyncMetadataStore implementation.
bool UpdateEntityMetadata(syncer::DataType data_type,
const std::string& storage_key,
const sync_pb::EntityMetadata& metadata) override;
bool ClearEntityMetadata(syncer::DataType data_type,
const std::string& storage_key) override;
bool UpdateDataTypeState(
syncer::DataType data_type,
const sync_pb::DataTypeState& data_type_state) override;
bool ClearDataTypeState(syncer::DataType data_type) override;
// Creates a sync::MetadataBatch and fills it with entity metadata and
// DataTypeState information.
std::unique_ptr<syncer::MetadataBatch> GetAllSyncMetadata();
private:
friend class PowerBookmarkSyncMetadataDatabaseTest;
// Reads all sync_pb::EntityMetadata and fills `metadata_batch` with it.
// Returns whether the call succeeded.
bool GetAllSyncEntityMetadata(syncer::MetadataBatch* metadata_batch);
// Reads the stored DataTypeState and fills `metadata_batch` with it.
// Returns whether the call succeeded.
bool GetDataTypeState(syncer::MetadataBatch* metadata_batch) const;
const raw_ptr<sql::Database> db_;
const raw_ptr<sql::MetaTable> meta_table_;
};
} // namespace power_bookmarks
#endif // COMPONENTS_POWER_BOOKMARKS_STORAGE_POWER_BOOKMARK_SYNC_METADATA_DATABASE_H_
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