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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.
#include "components/collaboration/internal/messaging/storage/messaging_backend_database_impl.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/task/thread_pool.h"
namespace collaboration::messaging {
namespace {
constexpr size_t kMaxNumEntriesInDB = 20000;
constexpr int kCurrentSchemaVersion = 1;
constexpr char kCollaborationMessageTableName[] = "collaboration_messages";
constexpr base::TaskTraits kDBTaskTraits = {
base::MayBlock(), base::TaskPriority::BEST_EFFORT,
base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN};
bool InitOnDBSequence(
base::FilePath profile_dir,
sql::Database* db,
sqlite_proto::ProtoTableManager* table_manager,
sqlite_proto::KeyValueData<collaboration_pb::Message>* message_data) {
CHECK(db);
CHECK(table_manager);
CHECK(message_data);
base::FilePath db_dir =
profile_dir.Append(FILE_PATH_LITERAL("Collaboration"));
if (!base::CreateDirectory(db_dir)) {
LOG(ERROR) << "Failed to create or open DB directory: " << db_dir;
return false;
}
const base::FilePath db_path = db_dir.Append(FILE_PATH_LITERAL("MessageDB"));
if (!db->Open(db_path)) {
LOG(ERROR) << "Failed to open DB " << db_path << ": "
<< db->GetErrorMessage();
return false;
}
table_manager->InitializeOnDbSequence(
db, std::vector<std::string>{kCollaborationMessageTableName},
kCurrentSchemaVersion);
message_data->InitializeOnDBSequence();
return true;
}
} // namespace
MessagingBackendDatabaseImpl::MessagingBackendDatabaseImpl(
const base::FilePath& profile_path)
: profile_path_(profile_path),
db_task_runner_(
base::ThreadPool::CreateSequencedTaskRunner(kDBTaskTraits)),
db_(std::make_unique<sql::Database>(
sql::Database::Tag("CollaborationMessageStorage"))),
proto_table_manager_(
base::MakeRefCounted<sqlite_proto::ProtoTableManager>(
db_task_runner_)),
message_table_(std::make_unique<
sqlite_proto::KeyValueTable<collaboration_pb::Message>>(
kCollaborationMessageTableName)),
message_data_(std::make_unique<
sqlite_proto::KeyValueData<collaboration_pb::Message>>(
proto_table_manager_,
message_table_.get(),
kMaxNumEntriesInDB,
/*flush_delay=*/base::TimeDelta())) {}
void MessagingBackendDatabaseImpl::Initialize(
DBLoadedCallback db_loaded_callback) {
// Unretained() for DB objects is safe here, because `this` destructor ensures
// that these objects outlive any task posted to DB sequence.
db_task_runner_->PostTaskAndReplyWithResult(
FROM_HERE,
base::BindOnce(&InitOnDBSequence, profile_path_,
base::Unretained(db_.get()),
base::Unretained(proto_table_manager_.get()),
base::Unretained(message_data_.get())),
base::BindOnce(&MessagingBackendDatabaseImpl::OnDBReady,
weak_ptr_factory_.GetWeakPtr(),
std::move(db_loaded_callback)));
}
MessagingBackendDatabaseImpl::~MessagingBackendDatabaseImpl() {
// Shutdown `proto_table_manager_` and delete it together with `db_` and
// KeyValueTable on DB sequence, then deletes KeyValueData and runs
// `shutdown_callback_` on the main sequence.
// This ensures that DB objects outlive any other task posted to DB sequence,
// since their deletion is the very last posted task.
db_task_runner_->PostTaskAndReply(
FROM_HERE,
base::BindOnce(
[](std::unique_ptr<sql::Database> db,
scoped_refptr<sqlite_proto::ProtoTableManager> table_manager,
auto message_table) { table_manager->WillShutdown(); },
std::move(db_), std::move(proto_table_manager_),
std::move(message_table_)),
base::BindOnce(
[](auto message_data, base::OnceClosure shutdown_callback) {
if (shutdown_callback) {
std::move(shutdown_callback).Run();
}
},
std::move(message_data_), std::move(shutdown_callback_)));
}
void MessagingBackendDatabaseImpl::Update(
const collaboration_pb::Message& message) {
CHECK(load_success_.has_value() && load_success_.value());
message_data_->UpdateData(message.uuid(), message);
}
void MessagingBackendDatabaseImpl::Delete(
const std::vector<std::string>& message_uuids) {
CHECK(load_success_.has_value() && load_success_.value());
message_data_->DeleteData(message_uuids);
}
void MessagingBackendDatabaseImpl::DeleteAllData() {
message_data_->DeleteAllData();
}
void MessagingBackendDatabaseImpl::OnDBReady(
DBLoadedCallback db_loaded_callback,
bool success) {
load_success_ = success;
std::move(db_loaded_callback).Run(success, message_data_->GetAllCached());
}
void MessagingBackendDatabaseImpl::SetShutdownCallbackForTesting(
base::OnceClosure shutdown_callback) {
shutdown_callback_ = std::move(shutdown_callback);
}
std::optional<collaboration_pb::Message>
MessagingBackendDatabaseImpl::GetMessageForTesting(
const std::string message_uuid) {
CHECK(load_success_.has_value() && load_success_.value());
collaboration_pb::Message message;
if (!message_data_->TryGetData(message_uuid, &message)) {
return std::nullopt;
}
return message;
}
} // namespace collaboration::messaging
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