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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.
#include "components/power_bookmarks/storage/power_bookmark_sync_metadata_database.h"
#include <memory>
#include "base/big_endian.h"
#include "base/logging.h"
#include "base/time/time.h"
#include "components/sync/model/metadata_batch.h"
#include "components/sync/protocol/entity_metadata.pb.h"
#include "sql/statement.h"
namespace power_bookmarks {
namespace {
// Key in sql::MetaTable, the value is a serialization of syner::DataTypeState,
// which tracks the overall sync state of the power bookmark datatype.
const char kPowerBookmarkDataTypeStateKey[] = "power_bookmark_type_state";
} // namespace
// Description of database table:
//
// sync_metadata
// storage_key The guid of an entry in the saves table.
// value Serialized sync EntityMetadata, which tracks the sync
// state of each power bookmark entity.
PowerBookmarkSyncMetadataDatabase::PowerBookmarkSyncMetadataDatabase(
sql::Database* db,
sql::MetaTable* meta_table)
: db_(db), meta_table_(meta_table) {}
PowerBookmarkSyncMetadataDatabase::~PowerBookmarkSyncMetadataDatabase() =
default;
bool PowerBookmarkSyncMetadataDatabase::Init() {
if (!db_->DoesTableExist("sync_metadata")) {
static constexpr char kInitSql[] =
// clang-format off
"CREATE TABLE sync_metadata "
"(storage_key TEXT PRIMARY KEY NOT NULL, value BLOB)";
// clang-format on
DCHECK(db_->IsSQLValid(kInitSql));
if (!db_->Execute(kInitSql)) {
return false;
}
}
return true;
}
bool PowerBookmarkSyncMetadataDatabase::UpdateEntityMetadata(
syncer::DataType data_type,
const std::string& storage_key,
const sync_pb::EntityMetadata& metadata) {
DCHECK(!storage_key.empty());
static constexpr char kUpdateSyncMetadataSql[] =
// clang-format off
"INSERT OR REPLACE INTO sync_metadata "
"(storage_key, value) VALUES(?, ?)";
// clang-format on
DCHECK(db_->IsSQLValid(kUpdateSyncMetadataSql));
sql::Statement s(db_->GetUniqueStatement(kUpdateSyncMetadataSql));
s.BindString(0, storage_key);
s.BindString(1, metadata.SerializeAsString());
return s.Run();
}
bool PowerBookmarkSyncMetadataDatabase::ClearEntityMetadata(
syncer::DataType data_type,
const std::string& storage_key) {
DCHECK(!storage_key.empty());
static constexpr char kClearSyncMetadataSql[] =
// clang-format off
"DELETE FROM sync_metadata WHERE storage_key=?";
// clang-format on
DCHECK(db_->IsSQLValid(kClearSyncMetadataSql));
sql::Statement s(db_->GetUniqueStatement(kClearSyncMetadataSql));
s.BindString(0, storage_key);
return s.Run();
}
bool PowerBookmarkSyncMetadataDatabase::UpdateDataTypeState(
syncer::DataType data_type,
const sync_pb::DataTypeState& data_type_state) {
DCHECK_GT(meta_table_->GetVersionNumber(), 0);
std::string serialized_state = data_type_state.SerializeAsString();
return meta_table_->SetValue(kPowerBookmarkDataTypeStateKey,
serialized_state);
}
bool PowerBookmarkSyncMetadataDatabase::ClearDataTypeState(
syncer::DataType data_type) {
DCHECK_GT(meta_table_->GetVersionNumber(), 0);
return meta_table_->DeleteKey(kPowerBookmarkDataTypeStateKey);
}
std::unique_ptr<syncer::MetadataBatch>
PowerBookmarkSyncMetadataDatabase::GetAllSyncMetadata() {
auto metadata_batch = std::make_unique<syncer::MetadataBatch>();
if (!GetAllSyncEntityMetadata(metadata_batch.get())) {
return nullptr;
}
if (!GetDataTypeState(metadata_batch.get())) {
return nullptr;
}
return metadata_batch;
}
bool PowerBookmarkSyncMetadataDatabase::GetAllSyncEntityMetadata(
syncer::MetadataBatch* metadata_batch) {
DCHECK(metadata_batch);
static constexpr char kGetAllSyncEntityMetadataSql[] =
// clang-format off
"SELECT storage_key, value FROM sync_metadata";
// clang-format on
DCHECK(db_->IsSQLValid(kGetAllSyncEntityMetadataSql));
sql::Statement s(db_->GetUniqueStatement(kGetAllSyncEntityMetadataSql));
while (s.Step()) {
std::string storage_key = s.ColumnString(0);
std::string_view serialized_metadata = s.ColumnStringView(1);
auto entity_metadata = std::make_unique<sync_pb::EntityMetadata>();
if (!entity_metadata->ParseFromString(serialized_metadata)) {
DLOG(WARNING) << "Failed to deserialize POWER_BOOKMARK data type "
"sync_pb::EntityMetadata.";
return false;
}
metadata_batch->AddMetadata(storage_key, std::move(entity_metadata));
}
return true;
}
bool PowerBookmarkSyncMetadataDatabase::GetDataTypeState(
syncer::MetadataBatch* metadata_batch) const {
sync_pb::DataTypeState state;
std::string serialized_state;
meta_table_->GetValue(kPowerBookmarkDataTypeStateKey, &serialized_state);
if (state.ParseFromString(serialized_state)) {
metadata_batch->SetDataTypeState(state);
return true;
}
return false;
}
} // namespace power_bookmarks
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