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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include "sqlitedatabaseinterface.h"
#include <utils/smallstringio.h>
#include <iostream>
namespace Sqlite {
template<unsigned int TableCount = 0>
class LastChangedRowId
{
public:
LastChangedRowId(const LastChangedRowId &) = delete;
LastChangedRowId &operator=(const LastChangedRowId &) = delete;
LastChangedRowId(DatabaseInterface &database)
: database(database)
{
database.setUpdateHook(this, callbackOnlyRowId);
}
LastChangedRowId(DatabaseInterface &database, Utils::SmallStringView databaseName)
: database(database)
, databaseName(databaseName)
{
database.setUpdateHook(this, callbackWithDatabase);
}
template<typename... Tables>
LastChangedRowId(DatabaseInterface &database,
Utils::SmallStringView databaseName,
Tables... tableNames)
: database(database)
, databaseName(databaseName)
, tableNames({tableNames...})
{
database.setUpdateHook(this, callbackWithTables);
}
~LastChangedRowId() { database.resetUpdateHook(); }
void operator()(long long rowId) { lastRowId = rowId; }
static void callbackOnlyRowId(void *object, int, char const *, char const *, long long rowId)
{
(*static_cast<LastChangedRowId *>(object))(rowId);
}
bool containsTable(Utils::SmallStringView table)
{
return std::find(tableNames.begin(), tableNames.end(), table) != tableNames.end();
}
void operator()(Utils::SmallStringView database, long long rowId)
{
if (databaseName == database)
lastRowId = rowId;
}
static void callbackWithDatabase(
void *object, int, char const *database, char const *, long long rowId)
{
(*static_cast<LastChangedRowId *>(object))(Utils::SmallStringView{database}, rowId);
}
void operator()(Utils::SmallStringView database, Utils::SmallStringView table, long long rowId)
{
if (databaseName == database && containsTable(table))
lastRowId = rowId;
}
static void callbackWithTables(
void *object, int, char const *database, char const *table, long long rowId)
{
(*static_cast<LastChangedRowId *>(
object))(Utils::SmallStringView{database}, Utils::SmallStringView{table}, rowId);
}
long long takeLastRowId()
{
long long lastId = lastRowId;
lastRowId = -1;
return lastId;
}
bool lastRowIdIsValid() const { return lastRowId >= 0; }
public:
DatabaseInterface &database;
long long lastRowId = -1;
Utils::SmallStringView databaseName;
std::array<Utils::SmallStringView, TableCount> tableNames;
};
} // namespace Sqlite
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