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/*
* Copyright (C) 2015 Christian Mollekopf <chrigi_1@fastmail.fm>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "typeindex.h"
#include <QMap>
template <typename T, typename First>
void mergeImpl(T &map, First f)
{
for (auto it = f.constBegin(); it != f.constEnd(); it++) {
map.insert(it.key(), it.value());
}
}
template <typename T, typename First, typename ... Tail>
void mergeImpl(T &map, First f, Tail ...maps)
{
for (auto it = f.constBegin(); it != f.constEnd(); it++) {
map.insert(it.key(), it.value());
}
mergeImpl<T, Tail...>(map, maps...);
}
template <typename First, typename ... Tail>
First merge(First f, Tail ...maps)
{
First map;
mergeImpl(map, f, maps...);
return map;
}
template <typename Property>
class ValueIndex
{
public:
static void configure(TypeIndex &index)
{
index.addProperty<Property>();
}
template <typename EntityType>
static QMap<QByteArray, int> databases()
{
return {{QByteArray{EntityType::name} +".index." + Property::name, 1}};
}
};
template <typename Property, typename SortProperty>
class SortedIndex
{
public:
static void configure(TypeIndex &index)
{
index.addPropertyWithSorting<Property, SortProperty>();
}
template <typename EntityType>
static QMap<QByteArray, int> databases()
{
return {{QByteArray{EntityType::name} +".index." + Property::name + ".sort." + SortProperty::name, 1}};
}
};
template <typename Property, typename SecondaryProperty>
class SecondaryIndex
{
public:
static void configure(TypeIndex &index)
{
index.addSecondaryProperty<Property, SecondaryProperty>();
}
template <typename EntityType>
static QMap<QByteArray, int> databases()
{
return {{QByteArray{EntityType::name} +".index." + Property::name + SecondaryProperty::name, 1}};
}
};
template <typename Property, typename SecondaryProperty, typename Indexer>
class CustomSecondaryIndex
{
public:
static void configure(TypeIndex &index)
{
index.addSecondaryPropertyIndexer<Property, SecondaryProperty, Indexer>();
}
template <typename EntityType>
static QMap<QByteArray, int> databases()
{
return Indexer::databases();
}
};
template <typename EntityType, typename ... Indexes>
class IndexConfig
{
template <typename T>
static void applyIndex(TypeIndex &index)
{
T::configure(index);
}
///Apply recursively for parameter pack
template <typename First, typename Second, typename ... Tail>
static void applyIndex(TypeIndex &index)
{
applyIndex<First>(index);
applyIndex<Second, Tail...>(index);
}
template <typename T>
static QMap<QByteArray, int> getDbs()
{
return T::template databases<EntityType>();
}
template <typename First, typename Second, typename ... Tail>
static QMap<QByteArray, int> getDbs()
{
return merge(getDbs<First>(), getDbs<Second, Tail...>());
}
public:
static void configure(TypeIndex &index)
{
applyIndex<Indexes...>(index);
}
static QMap<QByteArray, int> databases()
{
return getDbs<Indexes...>();
}
};
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