/*
    open source routing machine
    Copyright (C) Dennis Luxen, others 2010

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
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 Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
or see http://www.gnu.org/licenses/agpl.txt.
 */



#ifndef RESTRICTION_H_
#define RESTRICTION_H_

#include <climits>

struct _Restriction {
    NodeID viaNode;
    NodeID fromNode;
    NodeID toNode;
    struct Bits { //mostly unused
        Bits() : isOnly(false), unused1(false), unused2(false), unused3(false), unused4(false), unused5(false), unused6(false), unused7(false) {}
        char isOnly:1;
        char unused1:1;
        char unused2:1;
        char unused3:1;
        char unused4:1;
        char unused5:1;
        char unused6:1;
        char unused7:1;
    } flags;

    _Restriction(NodeID vn) : viaNode(vn), fromNode(UINT_MAX), toNode(UINT_MAX) { }
    _Restriction(bool isOnly = false) : viaNode(UINT_MAX), fromNode(UINT_MAX), toNode(UINT_MAX) {
        flags.isOnly = isOnly;
    }
};

inline bool CmpRestrictionByFrom ( _Restriction a, _Restriction b) { return (a.fromNode < b.fromNode);  }

struct _RawRestrictionContainer {
    _Restriction restriction;
    EdgeID fromWay;
    EdgeID toWay;
    unsigned viaNode;

    _RawRestrictionContainer(EdgeID f, EdgeID t, NodeID vn, unsigned vw) : fromWay(f), toWay(t), viaNode(vw) { restriction.viaNode = vn;}
    _RawRestrictionContainer(bool isOnly = false) : fromWay(UINT_MAX), toWay(UINT_MAX), viaNode(UINT_MAX) { restriction.flags.isOnly = isOnly;}

    static _RawRestrictionContainer min_value() {
        return _RawRestrictionContainer(0, 0, 0, 0);
    }
    static _RawRestrictionContainer max_value() {
        return _RawRestrictionContainer(UINT_MAX, UINT_MAX, UINT_MAX, UINT_MAX);
    }
};

struct CmpRestrictionContainerByFrom: public std::binary_function<_RawRestrictionContainer, _RawRestrictionContainer, bool> {
    typedef _RawRestrictionContainer value_type;
    bool operator ()  (const _RawRestrictionContainer & a, const _RawRestrictionContainer & b) const {
        return a.fromWay < b.fromWay;
    }
    value_type max_value()  {
        return _RawRestrictionContainer::max_value();
    }
    value_type min_value() {
        return _RawRestrictionContainer::min_value();
    }
};

struct CmpRestrictionContainerByTo: public std::binary_function<_RawRestrictionContainer, _RawRestrictionContainer, bool> {
    typedef _RawRestrictionContainer value_type;
    bool operator ()  (const _RawRestrictionContainer & a, const _RawRestrictionContainer & b) const {
        return a.toWay < b.toWay;
    }
    value_type max_value()  {
        return _RawRestrictionContainer::max_value();
    }
    value_type min_value() {
        return _RawRestrictionContainer::min_value();
    }
};



#endif /* RESTRICTION_H_ */