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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include <utils/span.h>
#include <utils/utility.h>
#include <nanotrace/nanotracehr.h>
#include <type_traits>
#include <vector>
namespace Sqlite {
template<auto Type, typename InternalIntegerType = long long>
class BasicId
{
template<auto, auto>
friend class CompoundBasicId;
public:
using IsBasicId = std::true_type;
using DatabaseType = InternalIntegerType;
constexpr explicit BasicId() = default;
static constexpr BasicId create(InternalIntegerType idNumber)
{
BasicId id;
id.id = idNumber;
return id;
}
template<typename Enumeration>
static constexpr BasicId createSpecialState(Enumeration specialState)
{
BasicId id;
id.id = ::Utils::to_underlying(specialState);
return id;
}
friend constexpr bool compareInvalidAreTrue(BasicId first, BasicId second)
{
return first.id == second.id;
}
friend constexpr bool operator==(BasicId first, BasicId second)
{
return first.id == second.id && first.isValid();
}
friend constexpr auto operator<=>(BasicId first, BasicId second) = default;
constexpr friend InternalIntegerType operator-(BasicId first, BasicId second)
{
return first.id - second.id;
}
constexpr bool isValid() const { return id > 0; }
constexpr bool isNull() const { return id == 0; }
template<typename Enumeration>
constexpr bool hasSpecialState(Enumeration specialState) const
{
return id == ::Utils::to_underlying(specialState);
}
explicit operator bool() const { return isValid(); }
explicit operator std::size_t() const { return static_cast<std::size_t>(id); }
constexpr InternalIntegerType internalId() const { return id; }
[[noreturn, deprecated]] InternalIntegerType operator&() const { throw std::exception{}; }
template<typename String>
friend void convertToString(String &string, BasicId id)
{
NanotraceHR::convertToString(string, id.id);
}
friend bool compareId(BasicId first, BasicId second) { return first.id == second.id; }
protected:
InternalIntegerType id = 0;
};
template<auto Type, auto ContextType>
class CompoundBasicId
{
public:
using IsBasicId = std::true_type;
using DatabaseType = long long;
using MainId = BasicId<Type, int>;
using ContextId = BasicId<ContextType, int>;
constexpr explicit CompoundBasicId() = default;
static constexpr CompoundBasicId create(MainId id, ContextId contextId)
{
CompoundBasicId compoundId;
compoundId.id = (static_cast<long long>(contextId.id) << 32) | static_cast<long long>(id.id);
return compoundId;
}
static constexpr CompoundBasicId create(long long idNumber)
{
CompoundBasicId id;
id.id = idNumber;
return id;
}
constexpr MainId mainId() const { return MainId::create(id); }
constexpr ContextId contextId() const { return ContextId::create(id >> 32); }
friend constexpr bool compareInvalidAreTrue(CompoundBasicId first, CompoundBasicId second)
{
return first.id == second.id;
}
friend constexpr bool operator==(CompoundBasicId first, CompoundBasicId second)
{
return first.id == second.id && first.isValid();
}
friend constexpr auto operator<=>(CompoundBasicId first, CompoundBasicId second) = default;
constexpr bool isValid() const { return id != 0; }
constexpr bool isNull() const { return id == 0; }
explicit operator bool() const { return isValid(); }
long long internalId() const { return id; }
explicit operator std::size_t() const { return static_cast<std::size_t>(id | 0xFFFFFFFFULL); }
template<typename String>
friend void convertToString(String &string, CompoundBasicId id)
{
int mainId = id.id;
int contextId = id.id >> 32;
convertToString(string, mainId);
convertToString(string, contextId);
}
friend bool compareId(CompoundBasicId first, CompoundBasicId second)
{
return first.id == second.id;
}
protected:
long long id = 0;
};
template<typename Container>
auto toIntegers(const Container &container)
{
using DataType = typename Container::value_type::DatabaseType;
const DataType *data = reinterpret_cast<const DataType *>(container.data());
return Utils::span{data, container.size()};
}
} // namespace Sqlite
namespace std {
template<auto Type, typename InternalIntegerType>
struct hash<Sqlite::BasicId<Type, InternalIntegerType>>
{
auto operator()(const Sqlite::BasicId<Type, InternalIntegerType> &id) const
{
return std::hash<InternalIntegerType>{}(id.internalId());
}
};
} // namespace std
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