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// Copyright 2025 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_COLLABORATION_INTERNAL_MESSAGING_STORAGE_MESSAGING_BACKEND_DATABASE_IMPL_H_
#define COMPONENTS_COLLABORATION_INTERNAL_MESSAGING_STORAGE_MESSAGING_BACKEND_DATABASE_IMPL_H_
#include "base/files/file_path.h"
#include "base/memory/weak_ptr.h"
#include "base/task/sequenced_task_runner.h"
#include "components/collaboration/internal/messaging/storage/messaging_backend_database.h"
#include "components/sqlite_proto/key_value_data.h"
#include "components/sqlite_proto/key_value_table.h"
#include "components/sqlite_proto/proto_table_manager.h"
#include "sql/database.h"
namespace collaboration::messaging {
// Database implementation using sqlite_proto.
class MessagingBackendDatabaseImpl : public MessagingBackendDatabase {
public:
explicit MessagingBackendDatabaseImpl(const base::FilePath& profile_dir);
MessagingBackendDatabaseImpl(const MessagingBackendDatabaseImpl&) = delete;
MessagingBackendDatabaseImpl& operator=(const MessagingBackendDatabaseImpl&) =
delete;
~MessagingBackendDatabaseImpl() override;
void Initialize(DBLoadedCallback db_loaded_callback) override;
void Update(const collaboration_pb::Message& message) override;
void Delete(const std::vector<std::string>& message_uuids) override;
void DeleteAllData() override;
void SetShutdownCallbackForTesting(base::OnceClosure shutdown_callback);
std::optional<collaboration_pb::Message> GetMessageForTesting(
const std::string message_uuid);
private:
void OnDBReady(DBLoadedCallback db_loaded_callback, bool success);
base::FilePath profile_path_;
// The following fields hold objects to work with SQLite database. `db_`,
// `proto_table_manager_` are deleted on db sequence; `message_data_` and
// `message_table_` are deleted on the main thread, however only after
// deletion of the rest.
scoped_refptr<base::SequencedTaskRunner> db_task_runner_;
std::unique_ptr<sql::Database> db_;
scoped_refptr<sqlite_proto::ProtoTableManager> proto_table_manager_;
std::unique_ptr<sqlite_proto::KeyValueTable<collaboration_pb::Message>>
message_table_;
std::unique_ptr<sqlite_proto::KeyValueData<collaboration_pb::Message>>
message_data_;
base::OnceClosure shutdown_callback_;
// Whether database is loaded successfully, set when database loaded
// successfully or failed.
std::optional<bool> load_success_;
base::WeakPtrFactory<MessagingBackendDatabaseImpl> weak_ptr_factory_{this};
};
} // namespace collaboration::messaging
#endif // COMPONENTS_COLLABORATION_INTERNAL_MESSAGING_STORAGE_MESSAGING_BACKEND_DATABASE_IMPL_H_
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