/* -*- C++ -*-

  * lemon/default_map.h - Part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_DEFAULT_MAP_H

 #define LEMON_DEFAULT_MAP_H

 #include <lemon/bits/array_map.h>

 #include <lemon/bits/vector_map.h>

 ///\ingroup graphmapfactory

 ///\file

 ///\brief Graph maps that construct and destruct

 ///their elements dynamically.

 namespace lemon {

   template <typename _Graph, typename _Item, typename _Value>

   struct DefaultMapSelector {

     typedef ArrayMap<_Graph, _Item, _Value> Map;

   };

   // bool

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, bool> {

     typedef VectorMap<_Graph, _Item, bool> Map;

   };

   // char

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, char> {

     typedef VectorMap<_Graph, _Item, char> Map;

   };

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, signed char> {

     typedef VectorMap<_Graph, _Item, signed char> Map;

   };

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, unsigned char> {

     typedef VectorMap<_Graph, _Item, unsigned char> Map;

   };

   // int

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, signed int> {

     typedef VectorMap<_Graph, _Item, signed int> Map;

   };

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, unsigned int> {

     typedef VectorMap<_Graph, _Item, unsigned int> Map;

   };

   // short

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, signed short> {

     typedef VectorMap<_Graph, _Item, signed short> Map;

   };

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, unsigned short> {

     typedef VectorMap<_Graph, _Item, unsigned short> Map;

   };

   // long

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, signed long> {

     typedef VectorMap<_Graph, _Item, signed long> Map;

   };

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, unsigned long> {

     typedef VectorMap<_Graph, _Item, unsigned long> Map;

   };

   // \todo handling long long type

   // float

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, float> {

     typedef VectorMap<_Graph, _Item, float> Map;

   };

   // double

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, double> {

     typedef VectorMap<_Graph, _Item,  double> Map;

   };

   // long double

   template <typename _Graph, typename _Item>

   struct DefaultMapSelector<_Graph, _Item, long double> {

     typedef VectorMap<_Graph, _Item, long double> Map;

   };

   // pointer

   template <typename _Graph, typename _Item, typename _Ptr>

   struct DefaultMapSelector<_Graph, _Item, _Ptr*> {

     typedef VectorMap<_Graph, _Item, _Ptr*> Map;

   };

   /// \e

   template <

     typename _Graph, 

     typename _Item,

     typename _Value>

   class DefaultMap 

     : public DefaultMapSelector<_Graph, _Item, _Value>::Map {

   public:

     typedef typename DefaultMapSelector<_Graph, _Item, _Value>::Map Parent;

     typedef DefaultMap<_Graph, _Item, _Value> Map;

     typedef typename Parent::Graph Graph;

     typedef typename Parent::Value Value;

     DefaultMap(const Graph& _g) : Parent(_g) {}

     DefaultMap(const Graph& _g, const Value& _v) : Parent(_g, _v) {}

   };

   /// \e

   template <typename _Base> 

   class MappableGraphExtender : public _Base {

   public:

     typedef MappableGraphExtender<_Base> Graph;

     typedef _Base Parent;

     typedef typename Parent::Node Node;

     typedef typename Parent::NodeIt NodeIt;

     typedef typename Parent::Edge Edge;

     typedef typename Parent::EdgeIt EdgeIt;

     template <typename _Value>

     class NodeMap 

       : public IterableMapExtender<DefaultMap<Graph, Node, _Value> > {

     public:

       typedef MappableGraphExtender Graph;

       typedef IterableMapExtender<DefaultMap<Graph, Node, _Value> > Parent;

       NodeMap(const Graph& _g) 

 	: Parent(_g) {}

       NodeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       NodeMap& operator=(const NodeMap& cmap) {

 	return operator=<NodeMap>(cmap);

       }

       /// \brief Template assign operator.

       ///

       /// The given parameter should be conform to the ReadMap

       /// concecpt and could be indiced by the current item set of

       /// the NodeMap. In this case the value for each item

       /// is assigned by the value of the given ReadMap. 

       template <typename CMap>

       NodeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<Node, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	Node it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

     template <typename _Value>

     class EdgeMap 

       : public IterableMapExtender<DefaultMap<Graph, Edge, _Value> > {

     public:

       typedef MappableGraphExtender Graph;

       typedef IterableMapExtender<DefaultMap<Graph, Edge, _Value> > Parent;

       EdgeMap(const Graph& _g) 

 	: Parent(_g) {}

       EdgeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       EdgeMap& operator=(const EdgeMap& cmap) {

 	return operator=<EdgeMap>(cmap);

       }

       template <typename CMap>

       EdgeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<Edge, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	Edge it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

   };

   /// \e

   template <typename _Base> 

   class MappableUndirGraphExtender : 

     public MappableGraphExtender<_Base> {

   public:

     typedef MappableUndirGraphExtender Graph;

     typedef MappableGraphExtender<_Base> Parent;

     typedef typename Parent::UndirEdge UndirEdge;

     template <typename _Value>

     class UndirEdgeMap 

       : public IterableMapExtender<DefaultMap<Graph, UndirEdge, _Value> > {

     public:

       typedef MappableUndirGraphExtender Graph;

       typedef IterableMapExtender<

 	DefaultMap<Graph, UndirEdge, _Value> > Parent;

       UndirEdgeMap(const Graph& _g) 

 	: Parent(_g) {}

       UndirEdgeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       UndirEdgeMap& operator=(const UndirEdgeMap& cmap) {

 	return operator=<UndirEdgeMap>(cmap);

       }

       template <typename CMap>

       UndirEdgeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<UndirEdge, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	UndirEdge it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

   };

   template <typename _Base>

   class MappableUndirBipartiteGraphExtender : public _Base {

   public:

     typedef _Base Parent;

     typedef MappableUndirBipartiteGraphExtender Graph;

     typedef typename Parent::Node Node;

     typedef typename Parent::UpperNode UpperNode;

     typedef typename Parent::LowerNode LowerNode;

     typedef typename Parent::Edge Edge;

     typedef typename Parent::UndirEdge UndirEdge;

     template <typename _Value>

     class UpperNodeMap 

       : public IterableMapExtender<DefaultMap<Graph, UpperNode, _Value> > {

     public:

       typedef MappableUndirBipartiteGraphExtender Graph;

       typedef IterableMapExtender<DefaultMap<Graph, UpperNode, _Value> > 

       Parent;

       UpperNodeMap(const Graph& _g) 

 	: Parent(_g) {}

       UpperNodeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       UpperNodeMap& operator=(const UpperNodeMap& cmap) {

 	return operator=<UpperNodeMap>(cmap);

       }

       /// \brief Template assign operator.

       ///

       /// The given parameter should be conform to the ReadMap

       /// concept and could be indiced by the current item set of

       /// the UpperNodeMap. In this case the value for each item

       /// is assigned by the value of the given ReadMap. 

       template <typename CMap>

       UpperNodeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<UpperNode, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	UpperNode it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

     template <typename _Value>

     class LowerNodeMap 

       : public IterableMapExtender<DefaultMap<Graph, LowerNode, _Value> > {

     public:

       typedef MappableUndirBipartiteGraphExtender Graph;

       typedef IterableMapExtender<DefaultMap<Graph, LowerNode, _Value> > 

       Parent;

       LowerNodeMap(const Graph& _g) 

 	: Parent(_g) {}

       LowerNodeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       LowerNodeMap& operator=(const LowerNodeMap& cmap) {

 	return operator=<LowerNodeMap>(cmap);

       }

       /// \brief Template assign operator.

       ///

       /// The given parameter should be conform to the ReadMap

       /// concept and could be indiced by the current item set of

       /// the LowerNodeMap. In this case the value for each item

       /// is assigned by the value of the given ReadMap. 

       template <typename CMap>

       LowerNodeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<LowerNode, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	LowerNode it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

   protected:

     template <typename _Value>

     class NodeMapBase : public Parent::NodeNotifier::ObserverBase {

     public:

       typedef MappableUndirBipartiteGraphExtender Graph;

       typedef Node Key;

       typedef _Value Value;

       /// The reference type of the map;

       typedef typename LowerNodeMap<_Value>::Reference Reference;

       /// The pointer type of the map;

       typedef typename LowerNodeMap<_Value>::Pointer Pointer;

       /// The const value type of the map.

       typedef const Value ConstValue;

       /// The const reference type of the map;

       typedef typename LowerNodeMap<_Value>::ConstReference ConstReference;

       /// The pointer type of the map;

       typedef typename LowerNodeMap<_Value>::ConstPointer ConstPointer;

       typedef True ReferenceMapTag;

       NodeMapBase(const Graph& _g) 

 	: graph(&_g), lowerMap(_g), upperMap(_g) {

 	Parent::NodeNotifier::ObserverBase::attach(_g.getNotifier(Node()));

       }

       NodeMapBase(const Graph& _g, const _Value& _v) 

 	: graph(&_g), lowerMap(_g, _v), 

 	  upperMap(_g, _v) {

 	Parent::NodeNotifier::ObserverBase::attach(_g.getNotifier(Node()));

       }

       virtual ~NodeMapBase() {      

 	if (Parent::NodeNotifier::ObserverBase::attached()) {

 	  Parent::NodeNotifier::ObserverBase::detach();

 	}

       }

       ConstReference operator[](const Key& node) const {

 	if (Parent::upper(node)) {

 	  return upperMap[node];

 	} else {

 	  return lowerMap[node];

 	}

       } 

       Reference operator[](const Key& node) {

 	if (Parent::upper(node)) {

 	  return upperMap[node];

 	} else {

 	  return lowerMap[node];

 	}

       }

       void set(const Key& node, const Value& value) {

 	if (Parent::upper(node)) {

 	  upperMap.set(node, value);

 	} else {

 	  lowerMap.set(node, value);

 	}

       }

     protected:

       virtual void add(const Node&) {}

       virtual void erase(const Node&) {}

       virtual void clear() {}

       virtual void build() {}

       const Graph* getGraph() const { return graph; }

     private:

       const Graph* graph;

       LowerNodeMap<_Value> lowerMap;

       UpperNodeMap<_Value> upperMap;

     };

   public:

     template <typename _Value>

     class NodeMap 

       : public IterableMapExtender<NodeMapBase<_Value> > {

     public:

       typedef MappableUndirBipartiteGraphExtender Graph;

       typedef IterableMapExtender< NodeMapBase<_Value> > Parent;

       NodeMap(const Graph& _g) 

 	: Parent(_g) {}

       NodeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       NodeMap& operator=(const NodeMap& cmap) {

 	return operator=<NodeMap>(cmap);

       }

       /// \brief Template assign operator.

       ///

       /// The given parameter should be conform to the ReadMap

       /// concept and could be indiced by the current item set of

       /// the NodeMap. In this case the value for each item

       /// is assigned by the value of the given ReadMap. 

       template <typename CMap>

       NodeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<Node, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	Node it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

     template <typename _Value>

     class EdgeMap 

       : public IterableMapExtender<DefaultMap<Graph, Edge, _Value> > {

     public:

       typedef MappableUndirBipartiteGraphExtender Graph;

       typedef IterableMapExtender<DefaultMap<Graph, Edge, _Value> > Parent;

       EdgeMap(const Graph& _g) 

 	: Parent(_g) {}

       EdgeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       EdgeMap& operator=(const EdgeMap& cmap) {

 	return operator=<EdgeMap>(cmap);

       }

       template <typename CMap>

       EdgeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<Edge, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	Edge it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

     template <typename _Value>

     class UndirEdgeMap 

       : public IterableMapExtender<DefaultMap<Graph, UndirEdge, _Value> > {

     public:

       typedef MappableUndirBipartiteGraphExtender Graph;

       typedef IterableMapExtender<DefaultMap<Graph, UndirEdge, _Value> > 

       Parent;

       UndirEdgeMap(const Graph& _g) 

 	: Parent(_g) {}

       UndirEdgeMap(const Graph& _g, const _Value& _v) 

 	: Parent(_g, _v) {}

       UndirEdgeMap& operator=(const UndirEdgeMap& cmap) {

 	return operator=<UndirEdgeMap>(cmap);

       }

       template <typename CMap>

       UndirEdgeMap& operator=(const CMap& cmap) {

 	checkConcept<concept::ReadMap<UndirEdge, _Value>, CMap>();

 	const typename Parent::Graph* graph = Parent::getGraph();

 	UndirEdge it;

 	for (graph->first(it); it != INVALID; graph->next(it)) {

 	  Parent::set(it, cmap[it]);

 	}

 	return *this;

       }

     };

   };

 }

 #endif