/****************************************************************************/
/// @file    GNEJunction.h
/// @author  Jakob Erdmann
/// @date    Feb 2011
/// @version $Id: GNEJunction.h 21788 2016-10-25 11:05:18Z namdre $
///
// A class for visualizing and editing junctions in netedit (adapted from
// GUIJunctionWrapper)
/****************************************************************************/
// SUMO, Simulation of Urban MObility; see http://sumo.dlr.de/
// Copyright (C) 2001-2016 DLR (http://www.dlr.de/) and contributors
/****************************************************************************/
//
//   This file is part of SUMO.
//   SUMO 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 3 of the License, or
//   (at your option) any later version.
//
/****************************************************************************/
#ifndef GNEJunction_h
#define GNEJunction_h


// ===========================================================================
// included modules
// ===========================================================================
#ifdef _MSC_VER
#include <windows_config.h>
#else
#include <config.h>
#endif

#include "GNENetElement.h"

// ===========================================================================
// class declarations
// ===========================================================================
class GNENet;
class GNEEdge;
class GNECrossing;
class NBTrafficLightDefinition;

// ===========================================================================
// class definitions
// ===========================================================================
/**
 * @class GNEJunction
 *
 * In the case the represented junction's shape is empty, the boundary
 *  is computed using the junction's position to which an offset of 1m to each
 *  side is added.
 */
class GNEJunction : public GNENetElement {

    /// @brief Declare friend class
    friend class GNEChange_TLS;

public:
    /**@brief Constructor
     * @param[in] nbn The represented node
     * @param[in] net The net to inform about gui updates
     * @param[in] loaded Whether the junction was loaded from a file
     */
    GNEJunction(NBNode& nbn, GNENet* net, bool loaded = false);

    /// @brief Destructor
    virtual ~GNEJunction();

    /// @name inherited from GUIGlObject
    /// @{
    /**@brief Returns an own popup-menu
     *
     * @param[in] app The application needed to build the popup-menu
     * @param[in] parent The parent window needed to build the popup-menu
     * @return The built popup-menu
     * @see GUIGlObject::getPopUpMenu
     */
    GUIGLObjectPopupMenu* getPopUpMenu(GUIMainWindow& app, GUISUMOAbstractView& parent);

    /**@brief Returns an own parameter window
     *
     * @param[in] app The application needed to build the parameter window
     * @param[in] parent The parent window needed to build the parameter window
     * @return The built parameter window
     * @see GUIGlObject::getParameterWindow
     */
    GUIParameterTableWindow* getParameterWindow(GUIMainWindow& app, GUISUMOAbstractView& parent);

    /**@brief Returns the boundary to which the view shall be centered in order to show the object
     *
     * @return The boundary the object is within
     * @see GUIGlObject::getCenteringBoundary
     */
    Boundary getCenteringBoundary() const;

    /**@brief Draws the object
     * @param[in] s The settings for the current view (may influence drawing)
     * @see GUIGlObject::drawGL
     */
    void drawGL(const GUIVisualizationSettings& s) const;
    /// @}

    /// @brief Returns the boundary of the junction
    Boundary getBoundary() const;

    /// @brief Return net build node
    NBNode* getNBNode() const;

    /// @brief Return all GNEEdges vinculated with this Junction
    std::vector<GNEEdge*> getGNEEdges() const;

    /// @brief Return incoming GNEEdges
    std::vector<GNEEdge*> getGNEIncomingEdges() const;

    /// @brief Return incoming GNEEdges
    std::vector<GNEEdge*> getGNEOutgoingEdges() const;

    /// @brief marks as first junction in createEdge-mode
    void markAsCreateEdgeSource();

    /// @brief removes mark as first junction in createEdge-mode
    void unMarkAsCreateEdgeSource();

    /// @brief notify the junction of being selected in tls-mode. (used to control drawing)
    void selectTLS(bool selected);

    /**@brief Update the boundary of the junction */
    void updateGeometry();

    /**@brief reposition the node at pos and informs the edges
     * @param[in] pos The new position
     * @note: those operations are not added to the undoList. This is handled in
     * registerMove to avoids merging lots of tiny movements
     */
    void move(Position pos);

    /// @brief registers completed movement with the undoList
    void registerMove(GNEUndoList* undoList);

    /**@brief update shapes of all elements associated to the junction
     * @note this include the adyacent nodes connected by edges
     * @note if this function is called during 'Move' mode, connections will not be updated to improve efficiency
     */
    void updateShapesAndGeometries();

    /// @name inherited from GNEAttributeCarrier
    /// @{
    /* @brief method for getting the Attribute of an XML key
     * @param[in] key The attribute key
     * @return string with the value associated to key
     */
    std::string getAttribute(SumoXMLAttr key) const;

    /* @brief method for setting the attribute and letting the object perform additional changes
     * @param[in] key The attribute key
     * @param[in] value The new value
     * @param[in] undoList The undoList on which to register changes
     */
    void setAttribute(SumoXMLAttr key, const std::string& value, GNEUndoList* undoList);

    /* @brief method for checking if the key and their correspond attribute are valids
     * @param[in] key The attribute key
     * @param[in] value The value asociated to key key
     * @return true if the value is valid, false in other case
     */
    bool isValid(SumoXMLAttr key, const std::string& value);
    /// @}

    /// @brief set responsibility for deleting internal strctures
    void setResponsible(bool newVal);

    /* @brief notify junction that one of its edges has changed its shape, and
     * therefore the junction shape is no longer valid */
    void invalidateShape();

    /* @brief update validity of this junctions logic
     * if the logic is invalidated, existing connections are removed via undo-list
     * so that the previous state can be restored
     * also calls invalidateTLS
     * @param[in] valid The new validity of the junction
     * @note: this should always be called with an active command group */
    void setLogicValid(bool valid, GNEUndoList* undoList = 0, const std::string& status = GUESSED);

    /// @brief prevent re-guessing connections at this junction
    void markAsModified(GNEUndoList* undoList);

    /* @brief invalidates loaded or edited TLS
     * @param[in] deletedConnection If a valid connection is given a replacement def with this connection removed
     *   but all other information intact will be computed instead of guessing a new tlDef
     * @note: this should always be called with an active command group */
    void invalidateTLS(GNEUndoList* undoList,
                       const NBConnection& deletedConnection = NBConnection::InvalidConnection);

    /// @brief removes the given edge from all pedestrian crossings
    void removeFromCrossings(GNEEdge* edge, GNEUndoList* undoList);

    /// @brief whether this junction has a valid logic
    bool isLogicValid();

    /// @brief modify the specified crossing (using friend privileges)
    void updateCrossingAttributes(NBNode::Crossing crossing);

private:
    /// @brief A reference to the represented junction
    NBNode& myNBNode;

    /// @brief restore point for undo
    Position myOrigPos;

    /// @brief The maximum size (in either x-, or y-dimension) for determining whether to draw or not
    SUMOReal myMaxSize;

    /// @brief The represented junction's boundary
    Boundary myBoundary;

    /// @brief whether this junction is the first junction for a newly creatededge
    /// @see GNEApplicationWindow::createEdgeSource)
    bool myAmCreateEdgeSource;

    /// @brief modification status of the junction logic (all connections across this junction)
    std::string myLogicStatus;

    /// @brief whether we are responsible for deleting myNBNode
    bool myAmResponsible;

    /// @brief whether this junctions logic is valid
    bool myHasValidLogic;

    /// @brief whether this junction is selected in tls-mode
    bool myAmTLSSelected;

    /// @brief the built crossing objects
    std::vector<GNECrossing*> myCrossings;

private:
    /// @brief Invalidated copy constructor.
    GNEJunction(const GNEJunction&);

    /// @brief Invalidated assignment operator.
    GNEJunction& operator=(const GNEJunction&);

    /// @brief method for setting the attribute and nothing else (used in GNEChange_Attribute)
    void setAttribute(SumoXMLAttr key, const std::string& value);

    /// @brief reposition the NBNnode and nothing else
    void setPosition(Position pos);

    /// @brief sets junction color depending on circumstances
    void setColor(const GUIVisualizationSettings& s, bool bubble) const;

    /// @brief determines color value
    SUMOReal getColorValue(const GUIVisualizationSettings& s, bool bubble) const;

    /// @brief adds a traffic light
    void addTrafficLight(NBTrafficLightDefinition* tlDef, bool forceInsert);

    /// @brief removes a traffic light
    void removeTrafficLight(NBTrafficLightDefinition* tlDef);

    /// @brief rebuilds crossing objects for this junction
    void rebuildCrossings(bool deleteOnly);
};


#endif

/****************************************************************************/
