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/* Copyright (c) 2016, Stanislaw Halik <sthalik@misaki.pl>
* Permission to use, copy, modify, and/or distribute this
* software for any purpose with or without fee is hereby granted,
* provided that the above copyright notice and this permission
* notice appear in all copies.
*/
#pragma once
#include <QString>
#include "export.hpp"
#include <memory>
#include <vector>
#include <functional>
namespace migrations {
struct migration;
class registrator;
namespace detail {
using mptr = std::shared_ptr<migration>;
using mfun = std::function<mptr ()>;
struct migrator
{
static std::vector<QString> run();
static void add_migration_thunk(std::function<mptr()>& thunk);
static void mark_profile_as_not_needing_migration();
private:
static void sort_migrations();
static void register_migration(const mptr& m);
static std::vector<mptr>& migrations();
static void eval_thunks();
static QString last_migration_time();
static QString time_after_migrations();
static void set_last_migration_time(const QString& val);
static int to_int(const QString& str, bool& ok);
static std::vector<mptr>& migration_list();
static std::vector<mfun>& migration_thunks();
};
template<typename t>
struct registrator final
{
registrator()
{
mfun f { [] { return std::shared_ptr<migration>(new t); } };
migrator::add_migration_thunk(f);
}
};
}
#define OPENTRACK_MIGRATION3(type, ctr) \
static const char init_##ctr = (::migrations::detail::registrator<type>{}, 0);
#define OPENTRACK_MIGRATION2(type, ctr) \
OPENTRACK_MIGRATION3(type, ctr)
#define OPENTRACK_MIGRATION(type) \
OPENTRACK_MIGRATION2(type, __COUNTER__)
struct migration
{
migration();
migration(const migration&) = delete;
migration& operator=(const migration&) = delete;
virtual ~migration();
virtual QString unique_date() const = 0;
virtual QString name() const = 0;
virtual bool should_run() const = 0;
virtual void run() = 0;
};
} // ns migrations
OTR_MIGRATION_EXPORT std::vector<QString> run_migrations();
OTR_MIGRATION_EXPORT void mark_profile_as_not_needing_migration();
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