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/*
This file is part of libdjinterop.
libdjinterop is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
libdjinterop is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with libdjinterop. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef DJINTEROP_ENGINE_ENGINE_VERSION_HPP
#define DJINTEROP_ENGINE_ENGINE_VERSION_HPP
#if __cplusplus < 201703L
#error This library needs at least a C++17 compliant compiler
#endif
#include <ostream>
#include <djinterop/config.hpp>
#include <djinterop/semantic_version.hpp>
namespace djinterop::engine
{
/// Enumeration of types of Engine database.
enum class engine_database_type
{
/// Engine database for a desktop application, such as Engine Prime.
desktop,
/// Engine database for a hardware device, such as DJ players.
os,
};
/// The `engine_version` struct represents a way to identify the version
/// of an Engine database.
struct DJINTEROP_PUBLIC engine_version
{
/// Headline version.
semantic_version version;
/// Engine database type (Desktop or OS).
engine_database_type database_type;
/// Descriptive version name.
const char* name;
/// Database schema version.
semantic_version schema_version;
/// Test whether the version has a version 2 database schema.
///
/// \return Returns `true` if the version has v2 schema, or `false` if not.
[[nodiscard]] bool is_v2_schema() const noexcept
{
return schema_version.maj == 2;
}
};
inline std::ostream& operator<<(std::ostream& os, const engine_version& v)
{
os << v.name;
return os;
}
inline bool operator==(const engine_version& a, const engine_version& b)
{
return a.version == b.version && a.database_type == b.database_type;
}
inline bool operator!=(const engine_version& a, const engine_version& b)
{
return !(a == b);
}
inline bool operator>=(const engine_version& a, const engine_version& b)
{
if (a.version == b.version)
return a.database_type >= b.database_type;
return a.version >= b.version;
}
inline bool operator>(const engine_version& a, const engine_version& b)
{
if (a.version == b.version)
return a.database_type > b.database_type;
return a.version > b.version;
}
inline bool operator<=(const engine_version& a, const engine_version& b)
{
if (a.version == b.version)
return a.database_type <= b.database_type;
return a.version <= b.version;
}
inline bool operator<(const engine_version& a, const engine_version& b)
{
if (a.version == b.version)
return a.database_type < b.database_type;
return a.version < b.version;
}
} // namespace djinterop::engine
#endif // DJINTEROP_ENGINE_ENGINE_VERSION_HPP
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